© ITC-AICE. 2009 E! 3792 ENIWEP TRIBOSTAND Kick-off meeting Paris 16 th January 2009.

© ITC-AICE. 2009

E! 3792 ENIWEP TRIBOSTAND

Kick-off meeting

Paris 16th January 2009

Tribostand Meeting 16/01/09 |

© ITC-AICE. 2009

Index

1. Meeting agenda

2. Project diagram

3. Selected samples

4. Sample dimentions

5. Sample preparation

6. Selected tests

7. ITC tests

6.1 Porosity

6.2 Roughness


© ITC-AICE. 2009

1. Meeting agenda

8:30 – 9:00 Registration

9:00 – 10:00 IPR Contract

10:00 – 10:30 Funding and coordination issues. Further coordination of Tribostand: new co-ordinator to be nominated

10:30 – 10:45 Coffee break

10:45 – 11:15 Samples for the development of the project

11:15 – 13:30 Technical progress by group leaders

13:30 End of Meeting


© ITC-AICE. 2009

2. Project diagram

1 Bibliographic search

2 Selection of tests

5 Start-up of service 6.1 Submission of protocols

6.2 Dissemination of results

7 Project management

4 Study of the tests

3 Selection of equipment and samples


© ITC-AICE. 2009

3. Selected samples to test

SELECTED SAMPLES

MATERIAL NUMBER

Substrate CoatingNon-destuctive

testsDestructive

test

DLC coating

PVD coating

White opaque ceramic glass 2 samples 5 samples


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4. Sample dimentions

Test Test Leader Members Sample dimentions

Roughness ITC 6 100x100 mm

Chemical resistance ECP 3 ø 40 mm*

Nanoindentation AIN 5 50x50 mm

Microhardness TRIBOTECHNIC 4 50x50 mm

Coating thickness UC 6 ø 40 mm*

Scratch resistance AIN 6 25 x 50 mm

Porosity ITC 2 12x12 mm

Wear (Rotating) TEKNIKER 9 ø 40 mm

Wear (Reciprocating) UC 7 40x40 mm

Abrasion (Sand) IPN 3 40x20 mm

Abrasion (Taber) TEKNIKER 3 100x100 mm

Microtribology NPL 6 20x30 mm


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5. Sample preparation

• White opaque ceramic glass samples were prepared and sent to all partners, in order to be able to know the behaviour of the sample substrate

• Samples to be coated were cut as well. They were sent to AIN with the aim of coating them using both kinds of layers: DLC and PVD. The coating process is still in progress

• Samples were cut depending on the needings of each participant. These samples have been referenciated depending on their original piece of material


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6. Selected tests

Test Participants / Leader

Roughness ITC, TEKNIKER, AIN, IPN, ECP

Chemical resistance (corrosion)

KUL, TEKNIKER, ECP

Nanoindentation TEKNIKER, ITC, AIN, IPN

Microhardness ITC, AIN, TEKNIKER, TRIBOTECHNIC, FALEX

Coating thickness UC, ITC, TEKNIKER, AIN

Scratch resistance TEKNIKER, ITC, AIN, TRIBOTECHNIC, FALEX

Porosity TEKNIKER, ITC

Wear (Rotating) NPL, IPN, UC, TRIBOTECHNIC, TEKNIKER, AIN, ECP, ITC, FALEX

Wear (Reciprocating) NPL, IPN, UC, TRIBOTECHNIC, TEKNIKER, KUL, AIN, ITC, FALEX

Abrasion (Sand) TEKNIKER, IPN, FALEX

Abrasion (Taber) TEKNIKER, ITC, FALEX

Microtribology TEKNIKER, NPL, KUL, FALEX, TRIBOTECHNIC, ITC

Selected by ITC as co-ordinator


© ITC-AICE. 2009

7. ITC Tests | Porosity

Objective

Determination of sample porosity by means of an Optical Microscope OlympusBX60 joined at an image analysis program (Micro Image)

Procedure• Sample dimentions must be 10x10 mm

• Sample must be embedded and polished by means of a good polishing secuence, in order to avoid damage on the surface.

Ceramic substrate

Resin

Opaque ceramic glass


© ITC-AICE. 2009


Cloth BrandLubricant-Abrassive

Size of abrassive

TimeLoad/

Sample (N)

MD-Piano Struers Water Grane 120 1 min 20

MD-Allegro StruersDiaPro

Allegro/Large15-6 µm 4 min 20

MD-Plan Struers DiaPro Plan 15-3 µm 6 min 25

MD-Dur Struers DiaPro Dur 15-1 µm 3 min 25

MD-Mol Struers DiaPro Plan 15-3 µm 5 min 25

MicroCloth Buehler

MetaDi Supreme polycristalline

Diamond Suspensions

1 µm 1 min 25

Polishing secuence


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Obtained results after a test

0

10

20

30

40

50

60

70

80

90

100

0.1 1 10 100 1000Mean diameter (µm)

(%)

of

po

res

with

dia

me

ter

<

d50

d84

d16


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Test variables studied

Number of analyzed screens (10, 20, 30, 40 and 50)

Magnification (10x and 20x)

Technitian


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0

0,5

1

1,5

2

0,1 1 10 100 1000

Mean diameter (µm)

(%)

of p

ore

area

10 screens

20 screens

30 screens

40 screens

50 screens


Influence of the analysed screen number

0

10

20

30

40

50

60

70

80

90

100

0,1 1 10 100 1000Mean diameter (µm)

(%)

of p

ores

with

dia

met

er <

10 screens20 screens30 screens40 screens50 screens

Results


© ITC-AICE. 2009


Influence of the analysed screen number

Nº screens d16 (µm) d50 (µm) d84 (µm) (%)

10 4.6 10.0 18.1 1.3

20 4.5 9.9 17.6 1.2

30 4.6 9.9 17.6 1.3

40 4.6 10.4 19.2 1.5

50 4.7 10.5 19.9 1.5

Results


© ITC-AICE. 2009

0

0.5

1

1.5

2


(%)

of p

ore

area

Objective 10x

Objective 20x


Influence of the magnification

(10x and 20x)

0

10

20

30

40

50

60

70

80

90

100

0.1 1 10 100 1000

Mean diameter (µm)

(%)

of p

ores

with

dia

me

ter

<

Objective 10x

Objective 20x

Results


© ITC-AICE. 2009


Influence of the magnification (10x and 20x)

Objetive d16 (µm) d50 (µm) d84 (µm) (%)

10x 17.9 39.6 63.7 23.2

20x 19.2 36.3 57.5 21.8

Results


© ITC-AICE. 2009

0

0.5

1

1.5

2


(%)

of p

ore

area

Technician 1

Technician 2

Technician 3


Influence of the technician

0

10

20

30

40

50

60

70

80

90

100

0.1 1 10 100 1000

Mean diameter (µm)

(%)

of p

ores

with

dia

met

er <

Technician 1

Technician 2

Technician 3

Results


© ITC-AICE. 2009


Influence of the technitian

Transparent glaze

d16 (µm) d50 (µm) d84 (µm) (%)

Technician 1 5.0 10.5 23.5 1.4

Technician 2 4.3 9.1 16.2 1.4

Technician 3 4.7 10.5 19.9 1.5

Results:


© ITC-AICE. 2009


Conclusions

Influence of analysed screen number

No less than 40 screens. If the sample is really porous, this number has to be increased

Influence of the magnification

10x or 20x depending on the thickness of the coating

Influence of the technitian

Only if technitians are used to carrying out this kind of test, there are no such a difference between obtained results


© ITC-AICE. 2009

7. ITC Tests | Roughness

Objective

• Comparison between contact and optical profilometry in order to calculate roughness parameters

• Determination of test variables to obtain roughness parameters from selected samples

• Study of the influence of filters


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7. ITC Tests| Roughness

Equipments

Optical profilometer Contact profilometer

Veeco NT1100Hommelwerke T8000


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Roughness parameters

Ra: Arithmetic mean roughness value over the entire profile

M

kjk

N

ja Z

MNS

11

1

N

i

ia ZN

R1

1

Sa: Arithmetic mean roughness value over the entire measured array


© ITC-AICE. 2009

7. ITC Tests | Roughness

Comparison between Ra and Sa (cut-off 0.08)

Parameter Compared filtersOptical

profilometry

Contact profilometr

y

RaGaussian – ISO4287 0.40 ± 0.06 0.35 ± 0.03

Recursive 2RC – DIN4768 0.45 ± 0.07 0.37 ± 0.03

Sa Fourier – ISO4287 1.17 ± 0.07 1.20 ± 0.05

Results


© ITC-AICE. 2009


Conclusions

Roughness parameters between techniques can be compared if they are measured under the same conditions: filter, cut-off and measured area

Selected filters does not introduce any difference in the roughness parameters in the range of work studied

(Ra < 4µm (cut-off 0.8mm))

It is convenient to use Gaussian filter (optical profilometry) and ISO4287 filter (contact perfilometry) in order to avoid phase distorsion in the measures

DISEÑO Y ARQUITECTURA

UNIÓN EUROPEAFondos Estructurales

I n v e r t i m o s e n s u F u t u r o

Thanks for your attention

© ITC-AICE. 2009 E! 3792 ENIWEP TRIBOSTAND Kick-off meeting Paris 16 th January 2009.

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Transcript of © ITC-AICE. 2009 E! 3792 ENIWEP TRIBOSTAND Kick-off meeting Paris 16 th January 2009.