Dr. Paramanandam Thomas Additional Director & HOD

Dielectric Materials Division

Central Power Research Institute

Prof.C.V.Raman Road, P.B.NO:8066

Bangalore, India, Pincode:560080

Tel. Fax: +91-80-22072428(O)

Phone: +91-80-2360 2281 (R) Mob: +9194490 40168

E-mail: thomas@cpri.in ; pthomas64@gmail.com

http://scholar.google.co.in/citations?hl=en&user=SspZ1boAAAAJ

Educational Qualification

Qualification Institution Year

Ph.D

(Materials Science)

Materials Research Centre

Indian Institute of Science

Bangalore, India. 2011

Master of Science

(Analytical Chemistry)

University of Madras

A. C. Tech Campus Chennai,

India.

1988

Bachelor of Science

(Chemistry)

L.N.G.College

University of Madras,

Tamilnadu, India.

1984

Research Areas of Interest

High K dielectric ceramics & polymer-ceramic composites

Nanodielectric materials for electrical insulation

Energy Materials

Conducting Polymer/ Carbon Nanotube Composites as counter electrode

Supercapacitors

Fuel cells

Solar cells

POPs-PCBs.

Ph.D. Thesis details

Investigations into the Structural and Dielectric Properties of Nanocrystallites of

CaCu3Ti4O12 and the Composites based on Polymers and Glasses.

Key points:

Demonstrated microwave assisted synthesis and sintering characteristics of

CaCu3Ti4O12 ceramic.

Demonstrated synthesis of complex oxalate precursor for giant dielectric CaCu3Ti4O12

ceramic.

Demonstrated Nano particles synthesis of giant dielectric CaCu3Ti4O12 from oxalate

precursor.

Demonstrated the evolution of the microstructure in nanoscale related to the Cu(II)

coordination around the surface regions of CaCu3Ti4O12 nanoparticle.

Demonstrated the processing and characterization of high dielectric

PVDF/CaCu3Ti4O12 composite system.

Demonstrated the nanocomposite synthesis and characterization of high dielectric

PVDF/CaCu3Ti4O12 composite system.

Demonstrated in situ synthesis and characterization of Polyaniline/CaCu3Ti4O12

nanocrystal composite system.

Demonstrated fabrication of optically clear glasses in the system TeO2-CaCu3Ti4O12.

Technical skills

Materials preparation and processing:

Microwave processing, solid state synthesis, precursor synthesis, polymer-ceramic composite

processing, Melt-quenching.

Characterization techniques handled:

Scanning Electron Microscopy (SEM), X-Ray Powder Diffractometer, X-Ray Energy

Dispersive Spectroscopy (EDS), Impedance spectroscopy (Dielectric), Fourier Transform

Infrared Spectroscopy (FTIR), UV-VIS Spectroscopy, HPLC, GC-ECD/MS, Thermo

Gravimetry Analysis (TGA), Differential Scanning Calorimetry (DSC), Dynamic mechanical

analysis (DMA) and Thermo Mechanical Analysis (TMA).

R&D Experience

Employer’s Name Duration Position

Central Power Research

Institute, Bangalore, India.

December 2017- till

date Additional Director & HOD

2009-December

2017

Joint Director

(Rs. 37400-67000 (Pay Band - 4) with

grade pay of Rs.8700)

2002-2009 Scientific Officer Gr.4

1997-2002 Scientific Officer Gr.3

1992-1997 Scientific Officer Gr.2

1989-1992 Scientific Officer Gr.1

Madras Fertilizers Ltd.,

Manali, Chennai, India.

1988 -May 1989 Quality Control Lab. Lab Analyst

Participated & Organized Meetings

1. Participated : Member in the Scoping Meeting for GEF India Country Portfolio

Evaluation at New Delhi on 11.04.12.

2. Participated : Member of the study group delegation, participated in UNIDO mission to

assess the technology namely Plasma Arc Plascon technology and BCD Technologies

utilizing Base Catalyzed Dechlorination, at Narangba, Queensland, Australia, during 1-5

July 2012.

3. Participated : Member in the discussion meeting of National Steering Committee for the

Post NIP project on PCBs at MoEF, New Delhi on.10.06.11.

4. Participated : Member in the Technical evaluation committee meeting held at UN office,

New Delhi from 30.06.2011 to 08.07.2011 in connection with technical evaluation of

vendors for the Static plant for the treatment of PCBs (Ref-TOR Static Plant). Participants

to the meeting were the members of the Technical Working Group and they were from SAIL,

CPRI, Ministry of Steel, CEA, UNIDO and MoEF.

5. Participated : UNIDO Regional workshop on “POPs pollution management in Ship

breaking industry”, 6-7 September 2011, Venue: Amari Watergate Hotel, Bangkok 10400,

Thailand, to discuss about the Pollution management in ship breaking in Bangladesh,

India, Philippines and PERSGA and Preparation of the project proposal on

“Environmentally sound management and disposal of POPs and other hazardous wastes in

ship breaking industry.

6. Organized :Technical Working Group (TWG) meeting on Post NIP project on POPs-PCBs

in India, in CPRI on 23rd -27th September 2011. (Video conferencing)

7. Organized : Technical Working Group TWG meeting on Post NIP project on POPs-PCBs

in India, in CPRI on 4th October 2011. (Video conferencing)

8. Participated : Member in the discussion meeting of National Steering Committee for the

Post NIP project on PCBs at MoEF, New Delhi, during 09.11.11 & 10.11.11.

9. Participated : Member in the Technical and commercial evaluation of bids for PCBs

facility under project GF/IND/10/001 from 24.11.11 to 05.12.11 at UN conference hall,

UN House, 55 Lodi estate, New Delhi. Participants to the meeting were the members of the

Technical Working Group and they were from SAIL, CPRI, Ministry of Steel, CEA, UNIDO

and MoEF.

10. Participated : Member in the Scoping meeting for GEF India Country Portfolio Evaluation

(1992-2012), Final Consultation Workshop in New Delhi on 08.11.12.

Invited talks & Conference attended

1. Presented a technical paper entitled “The effect of Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT)

nanoparticles on the critical parameters of synthetic ester based nanofluids”, authored by

P.Thomas and Nandini.E.Hudedmani at 2nd International conference in Dielectrics (ICD

2018) during 1-5th July 2018, Hungary.

2. Presented a technical paper entitled “The effect of CaFeO3 nanoparticles on the thermal

and electrical properties of insulating fluids”, authored by P.Thomas and

Nandini.E.Hudedmani at the International Conference on Recent trends in analytical

chemistry (ICORTAC 2018), during 15-17th March 2018, University of Madras, Chennai.

3. Invited talks on the following topics during the programme on “Capacity Building on

Environmentally Sound Management (ESM) of PCB oil and PCBs Containing Equipments

at Ship Breaking Yard, Alang, Gujarat, India” during November 21-29, 2011,

CSIR-NEERI, Nagpur, India.

Analytical Techniques for estimation of PCBs from PCBs containing oil.

Destruction Technologies for polychlorinated Biphenyls (PCBs).

4. Presented a technical paper entitled “ Past, Present and Future of insulating liquids”

authored by P.Thomas, in one day National Conference on Environmental Friendly

Insulating Liquids (EFIL-12) during 18th November 2011, CPRI, Bangalore.

5. Presented a technical paper entitled “Polyol Esters as Dielectric Liquids for Transformer

applications” authored by P.Thomas, in one day National Conference on Environmental

Friendly Insulating Liquids (EFIL-12) during 18th November 2011, CPRI, Bangalore.

6. Presented a technical paper entitled “Dielectric properties of Poly(methyl methacrylate)

(PMMA) / CaCu3Ti4O12 composites” authored by P.Thomas, R.S. Ernest Ravindran,

K.B.R.Varma, at IEEE, ICPADM-2012 held during in CPRI, 24-28 July 2012,

Bangalore.

7. Presented a technical paper entitled “Dielectric behaviour of CCTO/PVDF composite”

authored by P.Thomas, K.T.Varughese, K.Dwarakanath, and K.B.R.Varma, in the

International Conference on Polymeric Materials in Power Engineering (ICPMPE-2007)”

in CPRI , Bangalore.

8. Presented a technical paper entitled “Microwave processing of giant dielectric

CaCu3Ti4O12 Ceramics” authored by P.Thomas, L.N.Sathapathy, K.Dwarakanath, and

K.B.R.Varma, at the International Conference on Advanced Material -2007,

(IUMRS-ICAM 2007), during 8-13,2007, Bangalore.

9. Presented a technical paper entitled “Dielectric characteristics of glass fiber reinforced

epoxy polymer composites subjected to moisture absorption” authored by P.Thomas,

K.Dwarakanath, at the National Conference on Functional Meta materials at the

Nanoscale”, 23rd July,2005, conducted by Materials Research Centre, IISc, Bangalore

-India.

10. Presented a technical paper entitled "Furan Analysis in Insulating Oil" authored by

P.Thomas, S.Sridhar, at the National Seminar on transformer Insulation System, CPRI,

Jan 1999.

11. Presented a technical paper entitled "Insulating oil -Present & Future" authored by

P.Thomas, at the National Seminar on Transformer Insulation System, CPRI, Jan 1999.

12. Presented a technical paper entitled "Synthetic Liquid Dielectrics for transformer

Applications" authored by P.Thomas at the Seminar on Distribution Transformers -

Failure & New Developments, CBI & P Feb 1997, Lucknow, India.

13. Presented a technical paper entitled "Synthetic Liquid Dielectrics for Transformer

applications" authored by P.Thomas at the 58th R&D session of Central Board of

Irrigation and Power (CBI&P), April 19-22, 1993, India.

Research Projects completed

1 Title Nanofluid

Sponsor M/s Central Power Research Institute

2

Duration

Title

Sponsor

Duration

2015-2018

Capacitor

M/s Central Power Research Institute

2015-2018

3 Title

Sponsor

Duration

Low loss dielectric ceramics

M/s Central Power Research Institute

2011-2013

4 Title Development of National Implementation Plan (NIP) on Persistent

Organic Pollutants (POPS)-Poly Chlorinated Bi Phenyls (PCBs) in

India.

Sponsor GEF thro UNIDO and MOEF, India

Duration 2009-2011

3 Title Polymer-ceramic composites with high dielectric constant for electrical

applications

Sponsor M/s Central Power Research Institute

Duration 2007-2010

4 Title Development of newer materials for electrical applications

Sponsor Ministry of Power, Research Scheme on Power (RSOP)

Duration 2003-2005

5 Title Furan compounds analysis in insulating oil

Sponsor M/s Central Power Research Institute. Duration

Duration 1998-2000

6 Title Polyol Esters as Dielectric Liquids

Sponsor M/s Central Power Research Institute

Duration 1997-2000

7 Title Preparation, characterization and evaluation of synthetic liquid

dielectrics

Sponsor M/s Central Power Research Institute

Duration 1994-1996

Publications

85 R.S.Ernest Ravindran, P.Thomas, S.Renganathan, Effect on dielectric, structural

and thermal behaviour of CaCu3Ti4O12 in a Nylon 11 matrix, Bull. Mater. Sci.

(2019) 42:28.

84 P. Thomas and Nandini.E.Hudedmani, “The effect of nanoparticles on the insulating

characteristics of synthetic ester based nanofluids”, IEEE, International Conference

on High Voltage Engineering and Technology (ICHVET 2019), February 07-08,

2019.

83 A. Ashokbabu and P. Thomas, “Dielectric and Thermal Properties of

PTFE/CaCu3Ti4O12 (CCTO) Nanocomposites” IEEE, International Conference on

High Voltage Engineering and Technology (ICHVET 2019), February 07-08, 2019.

82 P.Thomas, “Inventory of PCB and state of PCB contamination in Indian electrical

industry” ICDL-2019.

81 P. Thomas and Nandini.E.Hudedmani, “The effect of MgO nanoparticles on the

breakdown voltage, thermal conductivity and gassing tendency of synthetic esters”,

ICDL-2019.

80 M.Padmini, and P.Thomas, “High performance of Polypyrrole –CaCu3Ti4O12

nano composites for supercapacitor application”,International Meeting on Energy

Storage Devices (IMSED 2018), IIT, Roorkee, Dec.10-12, 2018

79 A. Ashokbabu and P. Thomas, “Structural, Thermal and Dielectric Behaviour of

Polyaryletherketone (PAEK)/CaCu3Ti4O12 (CCTO) Nanocomposite Films”,

submitted to Ceramic Internationals, (Accepted).

78 P. Thomas, A. Ashokbabu and Rahul Vaish, “Structural, thermal properties and

degradation kinetics of nylon 11/ CaCu3Ti4O12 (CCTO) nanocomposites”, Journal

of Thermal Analysis and Calorimetry (under review).

77 A. Ashokbabu and P. Thomas, “Preparation and Characterization of Nylon

11/CaCu3Ti4O12 (CCTO) Nanocomposites”, 15th IEEE India Council International

Conference (INDICON 2018), Amrita Vishwa Vidyapeetham, Coimbatore,

December 16- 18th 2018.

76 Nandini.E.Hudedmani and P. Thomas, “Dielectric and thermal conductivity

behavior of mineral oil based nanofluids”, International conference on Advanced

ceramics and nanomaterials for sustainable development (ACeND2018), Christ

University, Bangalore, September 19-21st 2018.

75 P. Thomas, A. Ashokbabu, R. S. Ernest Ravindran, and Rahul Vaish, “Dielectric

properties of nylon 11/CaCu3Ti4O12 (CCTO) nanocomposite films with high

permittivity”, IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 26,

No. 2; April 2019.

74 R.T.Arun Ram Prasath, Nandini.E.Hudedmani, Nirmal Kumar Roy, Sankar Narayan

Mahato and P.Thomas “Effect of uninhibited synthetic ester oil based high dielectric

CCTO nanofluids for power transformer application”, IET Science Measurement &

Technology, 2019, https://doi.org/10.1049/iet-smt.2018.5377.

73 R.T.Arun Ram Prasath, Nirmal Kumar Roy, Sankar Narayan Mahato and P.Thomas

“Synthetic ester oil based high dielectric CCTO nanofluids an alternative insulating

medium for power transformer”, IEEE transactions on Dielectrics and Electrical

Insulation, Vol. 26, No. 1; February 2019.

72 Nandini.E.Hudedmani, M.Padmini and P.Thomas, “Electrical and Thermal

conductivity behavior of Synthetic Ester based nanofluids”, 2nd International

Conference on Advance in New materials (ICAN-2018), Journal of Indian Chemical

Society.(under review) 08-09 June 2018.

71 Nandini.E.Hudedmani and P. Thomas, “Nanofluids for Transformer Insulation”

National seminar on Recent Trends in Insulating Fluids for Electrical Application,

journal of CPRI, Vol. 13, No. 4, pp. 577-582, December 2017.

70 P. Thomas and Nandini.E.Hudedmani, “The effect of Ba0.85Ca0.15Zr0.1Ti0.9O3

(BCZT) nanoparticles on the critical parameters of synthetic ester based nanofluids”,

submitted to ICD 2018, 2nd International conference in Dielectrics, Hungary, 1-5th

July 2018.

69 Nandini E Hudedmani and P. Thomas, “The effect of CaFeO3 nanoparticles on the

thermal and electrical properties of insulating fluids”, The International Conference

on Recent trends in analytical chemistry (ICORTAC 2018), University of Madras,

Chennai, 15-17th March 2018.

68 M.Padmini, P.Elumalai and P.Thomas “Symmetric Supercapacitor performance of

CaCu3Ti4O12 decorated polyaniline nanocomposite”, Electrochemicia Acta, Vol. No.

292 (2018) pg.558-567.

67 M.Padmini and P.Thomas “A Concise Review: Electrochemical Supercapacitors:

Electrode Materials and Device Fabrication”, submitted to CPRI Journal, Central

Power Research Institute, Bangalore. Journal of CPRI, Vol. 13, No. 4, pp. 629-634,

December 2017.

66 M.Padmini and P.Thomas,“In-situ synthesis and characterization of

Poly(3,4-Ethylenedioxythiophene) - CaCu3Ti4O12 nano crystal composites”,

International conference on Nanotechnology: Ideas, Innovations & Initatives- 2017

(ICN: 3I-2017) at IIT, Roorkee on Dec.06-08,2017. (Oral)

65 P.Thomas and M.Padmini “Poly (3,4-Ethylenedioxythiophene) /CaCu3Ti4O12 nano

composites as electrode material for supercapacitor application”, I2CAM school on

clean and renewable energy technologies via chemical route at JNCASR, Bangalore

during Nov.27-Dec.2,2017. (Poster)

64

G. Santhana Krishnan, P. Thomas, “Molecular and thermal studies of carbon fibre

precursor polymers with low thermal-oxidative stabilization characteristics”,

Journal of Applied Polymer Science, Volume 135, Issue 25, March 2018.

63 R.T.Arun Ram Prasath, Nirmal Kumar Roy, Sankar Narayan Mahato, P.Thomas

“Mineral oil based High Permittivity CCTO nanofluids for power transformer

application”, IEEE Transactions on Dielectrics and Electrical Insulation, Volume

24, Issue 4, 2344 – 2353, 2017.

62 R.T.Arun Ram Prasath, Nirmal Kumar Roy, Sankar Narayan Mahato, P.Thomas

“Dielectric and thermal conductivity studies on synthetic ester Midel 7131 based TiO2

nanofluids”, CATCON 2017, pp 289 – 292, 2017.

61 P.Thomas and Nandini.E.Hudedmani “AC breakdown voltage characteristics of

synthetic ester based eggshell nanofluids”, CATCON 2017, IIT Roopnagar, pp 112 –

115, 2017.

60 P.Thomas, “Dielectric and Thermo-mechanical behaviour of PMMA / Sr2TiMnO6

composites Advancements in Polymeric Materials (APM-2017)” 12 & 13th February

2017, Indian Institute of Science, Bangalore.

59 P.Thomas, “Synthesis and characterization of high permittivity nanocrystalline

ceramic powders by soft-chemistry route” Nanotechnology: science and application

in advanced materials and beyond, 19-22nd December 2016, Dept. of chemistry,

Institute of Science, Banaras Hindu University, Varanasi.

58 H. S. Kushwaha, P.Thomas, Rahul Vaish, “Visible light driven multifunctional

photocatalysis in TeO2-based semiconductor glass ceramics” J. Photon. Energy.

7(1), 016502 (Feb 21, 2017). doi:10.1117/1.JPE.7.016502.

57 P. Thomas, R. S. Ernest Ravindran, S. Renganathan, “High permittivity Nylon

11/CaCu3Ti4O12 (CCTO) nanocrystal composites for capacitors application” IEEE

Conference on Electrical Insulation and Dielectric Phenomena” held at

Toronto,Ontario,Canada, during October 16-19,2016.

56 P.Thomas, Raynol D’Souza, In-situ synthesis and characterization of

Polypyrrole-CaCu3Ti4O12 nano crystal composites” The International Conference

on Nanoscience and Nanotechnology for Energy Applications (EApp-2016) held at

Sathyabama University, Chennai, India during June 27th-29th, 2016

55 Aditya Kadian , Sampann Arora , Akshath Sharma , Girish M. Joshi, Mayank Pandey,

Anji Polu Reddy , M.J. Joshi , P. Thomas, “Improved dielectric constant of

thermoplastic blend as a function of alumina loading” Measurement 90 (2016)

461–467.

54 Mayank Pandey, Girish M Joshi, Amitava Mukherjee, P.Thomas. “Electrical

properties and thermal degradation of poly(vinyl chloride)/polyvinylidene

fluoride/ZnO polymer nanocomposites” Polym.Intl.(2016), DOI 10.1002/pi.5161.

53 Moumita Khutia, Girish M. Joshi, P.Thomas, “Dielectric relaxation of nano

perovskite SrTiO3 reinforced polyester resin/styrene blend for electronic

applications” J Mater Sci: Mater Electron, DOI 10.1007/s10854-016-4754-4

52 Satyanarayan Patel, Aditya Chauhan, Rahul Vaish, P. Thomas, “Elastocaloric and

Barocaloric Effects in PVDF Polymer” Applied Physics Letters 108, 072903 (2016);

doi: 10.1063/1.4942000.

51

P.Thomas, S.Vynetheya, Girish M. Joshi, Thermal and dielectric performance of

Melt processed Polycarbonate /CaCu3Ti4O12 composites, CPRI Journal, 11(3),

619-626,2015.

50 G. Santhana Krishnan, P. Thomas and N. Murali, “Synthesis, Characterization, and

Thermomechanical properties of Poly (acrylonitrile – co - 2,3-dimethyl -1,3-

butadiene-co-itaconic acid) as carbon fibre polymer precursors” RSC Advances,

2016, 6, 6182-6190.

49 H. S. Kushwaha, Niyaz A Madhar, B. Ilahi, P.Thomas, Aditi Halder, Rahul Vaish,

“ Efficient Solar Energy Conversion Using CaCu3Ti4O12 Photoanode for

Photocatalysis and Photoelectrocatalysis” Nature Publishing, Scientific

Reports|6:18557|DOI: 10.1038/srep18557.2016.

48 Kushwaha.Himmat, Thomas. P, Vaish.Rahul, “Polyaniline/CaCu3Ti4O12 nanofiber

composite with a synergistic effect for efficient visible light photocatalysis”, RSC

Adv., 2015, 5, 87241.

47 R.T.Arun Ram Prasath, P.Thomas, Ann Pamla Cruze, S.N.Mahato, N.K.Roy,

“Ageing Analysis of Mineral Insulating Oils Using CCTO Nanofluids”, presented at

International Conference on Energy, Power and Environment (Towards Sustainable

Growth) 12-13th , June 2015. National Institute of Technology Meghalaya, India.

46 Satyanarayan Patel, Aditya Chauhanm Rahul Vaish and P.Thomas, “Enhanced

energy storage performance of glass added

0.715Bi0.5Na0.5TiO3-0.065BaTiO3-0.22SrTiO3 ferroelectric ceramics” International

Journal of Asian Ceramic Societies 3 (2015) 383–389.

45 Ponraj Bharathi, P.Thomas, K.B.R.Varma, “Piezoelectric properties of individual

nanocrystallites of Ba0.85Ca0.15Zr0.1Ti0.9O3 obtained by Oxalate precursor route” J.

Mater. Chem. C, 2015, 3, 4762.

44 P.Thomas, B.S.Dakshayini, H. S. Kushwaha, and Rahul Vaish, “Effect of Sr2TiMnO6

fillers on mechanical, dielectric and thermal degradation behaviour of PMMA

polymer” International Journal of Advanced Dielectrics, 5(2) 2015: 1550018

43 R.S.Ernest Ravindran, P.Thomas, S.Renganathan “A comparative studies on

dielectric, structure and thermal behavior of micro and nano sized CaCu3Ti4O12 fillers

in Nylon 6,9 composites” International Journal of Polymer Composites” 3 JULY

2015 DOI: 10.1002/pc.23654

42 R.S.Ernest Ravindran, P.Thomas, S.Renganathan, Studies on structural, thermal and

dielectric properties of fabricated Nylon 6,9/ CaCu3Ti4O12 nanocomposites.

International journal of Science and Engineering of Composite Materials; DOI:

10.1515/secm-2014-0342, August 2015.

41 P.Thomas, R.S. Ernest Ravindran and K.B.R.Varma, Dielectric behavior of

Polycarbonate (PC) / CaCu3Ti4O12 (CCTO) composite sheets fabricated via melt

mixing. Presented at : IUMRS-ICA-2013, India.

40 P.Thomas,V.Asaithambi, Effect of particle size on the dielectric behaviour of

Poly(vinylidene fluoride)- CaCu3Ti4O12 composites. Presented at :

IUMRS-ICA-2013, India.

39 Ann Pamla Cruze, Dr. P. Thomas, K.S. Lokesh “Ageing studies on synthetic ester

with 2,6 ditertiary butyl para cresol”

National Conference on Environmental Friendly Insulating Liquids (EFIL-13) during

November 28th & 29th November 2013, New Delhi,India.

38 P.Thomas, K.B.R.Varma, Effect of TeO2 addition on the dielectric properties of

CaCu3Ti4O12 ceramics derived from the oxalate precursor route.

International Journal of Advanced Dielectrics.Vol. 3, No. 4 (2013) 1350028 (8

pages)

37 P.Thomas, R.S.Ernest Ravindran, K.B.R.Varma, Structural, Thermal and Electrical

properties of Poly(methyl methacrylate)/CaCu3Ti4O12 composites fabricated via melt

mixing. Journal of Thermal Analysis and Calorimetry,February 2014, Volume 115,

Issue 2, pp 1311-1319.

36 P.Thomas, B.S.Dakshayini , G.K.Mahadevaraju, High Permittivity Poly (methyl

methacrylate) / Sr2TiMnO6 Composites for high energy storage capacitor application.

International Journal of Current Engineering and Technology, 129-134,2013.

35 P.Thomas, R.S.Ernest Ravindran, K.B.R.Varma, Fabrication and Characterization of

Poly(methyl methacrylate)/ CaCu3Ti4O12 Composites. Polymer Engineering &

Science 54 (3), 551-558.

34 P.Thomas, B.S.Dakshayini , G.K.Mahadevaraju, High Permittivity Poly (methyl

methacrylate) / Sr2TiMnO6 Composites for high energy storage capacitor application,

National Conference on "Women in Science and Engineering (NCWSE2013)", Sri

Dharmasthala Manjunatheshwara College of Engineering & Technology,

Dhavalagiri, Dharwad, India, during 5th and 6th July 2013.

33 P.Thomas, K.B.R.Varma, Structural and dielectric properties of glasses in the

system TeO2- CaCu3Ti4O12, International Jl. of Advanced Dielectrics, 2(4), (2012)

1250020-1250027.

32 P.Thomas, R.S.Ernest Ravindran, K.B.R.Varma, Dielectric properties of Poly(methyl

methacrylate) (PMMA)/ CaCu3Ti4O12 composites. IEEE,

ICPADM-2012,CPRI,Bangalore.

31 P.Thomas, K.Dwarakanath, K.B.R.Varma, Effect of calcium stoichiometry on the

dielectric response of CaCu3Ti4O12 Ceramics. J.Euro.Ceram.Soc.

32(8)(2012)1681–1690.

30 P.Thomas, Past, Present and Future of insulating liquids, One day National

Conference on Environmental Friendly Insulating Liquids (EFIL-11) during

November 18th 2011, CPRI, Bangalore.

29 P.Thomas, Polyol Esters as Dielectric Liquids for Transformer applications, One day

National Conference on Environmental Friendly Insulating Liquids (EFIL-11) during

November 18th 2011, CPRI, Bangalore.

28 P.Thomas, S.Satapathy, K.Dwarakanath, K.B.R.Varma, Dielectric properties of

poly(vinylidene fluoride)/ CaCu3Ti4O12 nanocrystal composite thick films. Express

Polymer Letters. 4 (10) (2010) 632–643.

27 P.Thomas, K.T.Varughese, K.Dwarakanath, K.B.R.Varma, Dielectric properties of

Poly (vinylidene fluoride / CaCu3Ti4O12 composites. Compos Sci Technol. 70 (3)

(2010) 539-545.

26 P.Thomas, K.Dwarakanath, K.B.R.Varma, In-situ synthesis and characterization of

Polyaniline- CaCu3Ti4O12 nano crystal composites. Synth Metals. 159 (2009)

2128–2134.

25 P.Thomas, K.Dwarakanath, K.B.R.Varma and T.R.N.Kutty, Synthesis of

nanoparticles of the giant dielectric material, CaCu3Ti4O12 from a precursor route.

Journal of Thermal Analysis and Calorimetry, Vol. 95 (2009) 1, 267–272.

24 P.Thomas, K.Dwarakanath, K.B.R.Varma and T.R.N.Kutty, Nanoparticles of the

giant dielectric ceramic, CaCu3Ti4O12 from a complex oxalate precursor route.

IUMRS-ICMAT-ICA-2009, International conference on Materials for Advanced

Technologies, 28th June – 3rd July 2009, Singapore.

23 P.Thomas, K.Dwarakanath, K.B.R.Varma and T.R.N.Kutty, Nanoparticles of the

giant dielectric material CaCu3Ti4O12 from a precursor route, Journal of Physics and

Chemistry of Solids 69 (2008) 2594– 2604.

22 P.Thomas, L.N.Sathapathy, K.Dwarakanath, and K.B.R.Varma, Microwave

synthesis and sintering characteristics of CaCu3Ti4O12. Bull. Mater. Sci., Vol. 30 (6)

2007, 1–4.

21 P.Thomas, K.T.Varughese, K.Dwarakanath, and K.B.R.Varma, Dielectric behaviour

of CCTO/PVDF composite. International Conference on Polymeric Materials in

Power Engineering (ICPMPE-2007) in CPRI , Bangalore.

20 P.Thomas, L.N.Sathapathy, K.Dwarakanath, and K.B.R.Varma, Microwave

processing of giant dielectric CaCu3Ti4O12 Ceramics. International Conference on

Advanced Material -2007” , (IUMRS-ICAM 2007), during 8-13,2007, Bangalore.

19 P.Thomas, P.Sampathkumaran, R.K.Kumar, and S.Seetharamu, The slide wear

behaviour of glass epoxy composites. The Journal of CPRI,Vol.2(1),27-31,

March,2005.

18 P.Thomas, P.Sampathkumaran, S.Seetharamu, K.Dwarakanath and Kishore,

Influence of moisture absorption on electrical characteristics of glass-epoxy polymer

composite system. The journal of CPRI, Vol.2 (2),171-175, September 2005.

17 P.Thomas, Biodegradable dielectric liquids for transformer application. Electrical

Insulation News in Asia (ENIA), No.12, Nov.2005.

16 P.Thomas, K.Dwarakanath, Dielectric characteristics of glass fiber reinforced epoxy

polymer composites subjected to moisture absorption, at the National Conference on

Functional Meta materials at the Nanoscale, 23rd July,2005, conducted by Materials

Research Centre, IISc, Bangalore -India.

15 Kishore, P.Sampathkumaran, S.Seetharamu, P.Thomas and M. Janarshana, A Study

on the type and content of filler in epoxy-glass composite system on the friction and

slide wear characteristics. Wear 259 (2005),634-641.

14 P.Thomas, Biodegradable dielectric liquids for transformer application. Technical

exchange session, IEEE, ISEIM, 2005,June, 8, 2005, Japan.

13 P.Thomas, K.Dwarakanath P.Sampathkumaran, S.Seetharamu, and Kishore,

Influence of moisture absorption on electrical characteristics of glass-epoxy polymer

composite system. IEEE, ISEIM-2005, June, 5-9,2005, Japan.

12 Kishore, P.Sampathkumaran, S.Seetharamu, P.Thomas and M.Janarshana, A Study

on the type and content of filler in epoxy-glass composite system on the friction and

slide wear characteristics. International conference on Wear of Materials

(WOM-2005), Santiago, USA, April 2005.

11 Sampathkumaran, S. Seetharamu, R.K.Kumar, V.N.Nagaraj Rao, M. Janarshana and

P.Thomas, Creep life assessment of boiler tube through in situ steam side oxide scale

measurement” National workshop on RLA of power plant components.

12-13,Feb,2003, CPRI ,Bangalore.

10 P.Thomas, Raghuveer and A.K.Shukla, Ageing studies on paper – oil to assess the

condition of solid insulation used in power transformers. IEEE-ICSD-2001,

International Conference on Solid Dielectric (ICSD’01), Netherlands.

9 P.Thomas, S.Sridhar, Furan Analysis in Insulating Oil, Seminar on transformer

Insulation System, CPRI, Jan 1999.

8 P.Thomas, Insulating oil -Present & Future, Seminar on Transformer Insulation

System, CPRI, Jan 1999.

7 P.Thomas, S.Sridhar, Ageing characteristics of Synthetic Liquids, IEEE ISEI '98,

Washington DC, June 1998.

6 P.Thomas et.al Synthetic Liquid Dielectrics for transformer Applications, Seminar

on Distribution Transformers - Failure & New Developments, CBI & P Feb 1997,

Lucknow, India.

5 P.Thomas et.al. Synthesis and Evaluation of Oleic acid esters as dielectric liquids.

IEEE, ISEI' 96, Montreal, Canada, 16-19,June 1996.

4 P.Thomas et.al, Dielectric liquid from vegetable origin- Indian beech oil, IEEE,

ISEIM '95, Tokyo, Japan, 17-20, September 1995.

3 P.Thomas et.al, Synthetic Liquid Dielectrics for Transformer applications, 58th R&D

session of Central Board of Irrigation and Power (CBI&P), April 19-22, 1993, India.

2 S.Vijayakumari, P.Thomas, Effect of Tetrachloroethylene on the Flash point of

Mineral Insulating Oil for Transformers, 8th LAWPSP symposium, I.I.T, Bombay,

Feb 19-21, 1993,India.

1 S.Vijayakumari, K.R.Krishnamoorthi, P.Thomas, Effect of BTA and DBPC as on

the accelerated ageing of New and Reclaimed Transformer oil- A comparative

study, IEEE 3rd ICPADM-1991, Tokyo, July 8-12, 1991.