Younes Sina ,Student Poster Competition ,The Oak Ridge Chapter of ASM, the Materials Information...
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Poster Design & Printing by Genigraphics ® - 800.790.4001 SURFACE ENGINEERING BY ION IMPLANTATION OF MATERIALS SURFACE ENGINEERING BY ION IMPLANTATION OF MATERIALS Younes Sina a,* , Carl J. McHargue b,** a Material Science and Engineering Dep., The University of Tennessee, Knoxville, TN 37996-0759, USA b Center for Materials Processing, The University of Tennessee, Knoxville, USA, TN 37996-0759, INTRODUCTION ION IMPLANTATION CAN BE USED TO ANALYZING TECHNIQUES ADVANTAGES AND DISADVANTAGES OF ION IMPLANTATION MODIFICATION OF STRUCTURE REFERENCES ABSTRACT CONTACT Younes Sina The University of Tennessee, Knoxville, Material Science and Engineering Department Email: [email protected] Phone:865-258 1964 Website:http:// www.younessina.blogspot.com Ion implantation consists of directing an energetic ion onto surface of a target material. The ions penetrate through the target and gradually loss their energy and finally come to rest many atomic layers below the surface. Ion implantation technique is being investigated as a general method for altering the near- surface properties of metals, ceramics, and polymers. Ion implantation is an attractive technique for altering the near- surface properties of a wide range of materials. Any element can be injected into a solid forming usually a non-equilibrium compositions and structures that can not be achieved by conventional processing methods. •Alter near-surface composition to produce both equilibrium and non- equilibrium compositions •Change crystalline structure •Change mechanical properties •Change chemical reactivity •Produce nanophases •Pattern substrates Some of ion implantation applications are summarized in the following table: Mechanica l Chemical Electromagnetic Wear Corrosion superconductivi ty Friction Oxidation Photoconductivi ty Hardness Catalysis Resistivity Fatigue Electrochemi cal Magnetic properties Plasticit y Reflectivity Ductility Dielectric properties Adhesion Ion implantation technique allows some of ions penetrate into the surface of a material (including metals, ceramics, and polymers) producing a non-equilibrium structure. Forming of amorphous structures, supersaturated solutions and metastable compounds may modify some of the material properties. The University of Tennessee, Knoxville Advantages of Ion Implantation: • Controlled doping • Depth of penetration can be controlled by controlling energy of the ion beam • Concentration higher than solid solubility possible • Reactive ions can also be implanted • Implantation of different ions • Low temperature process Disadvantages of Ion Implantation: • Costly accelerator for ion implantation • Low throughput of the implanter Hip Implant 90% of hip replacements are implanted with nitrogen Nanoindentation-Al 2 O 3 Implanted crystalline samples: hardness ~1.3 × unimplanted Implanted amorphous samples: hardness ~0.5×unimplanted Accelerator for ion implantation The most important analyzing methods to study ion implanted materials are Rutherford Backscattering (RBS), Transmission Electron Microscopy (TEM), and Photoluminescence Spectroscopy (PL). Nanometer Iron Particles • Sapphire implanted with 1×10 17 Fe/cm 2 (160 keV)at RT • 1-3 nm pure bcc iron single crystals Interaction of Ions with Target 1. Materials Science Reports, Ion Implantation and Annealing of Crystalline Oxides , C.W. White, C.J. McHargue, P.S. Sklad, L.A. Boatner, and G.C. Farlow 2. Surface Engineering of Metals: principles, equipment, technologies, By Tadeusz Burakowski, Tadeusz Wierzchoń IONIMPLANTAION PROCESS
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Poster for ASM Oak Ridge Chapter competition Younes Sina, Dr. Carl.J. McHargue Student Poster Competition (The Oak Ridge Chapter of ASM, the Materials Information Society and the Smoky Mountain Chapter of the Society of Plastic Engineers)
Transcript of Younes Sina ,Student Poster Competition ,The Oak Ridge Chapter of ASM, the Materials Information...
Poster Design & Printing by Genigraphics® - 800.790.4001
SURFACE ENGINEERING BY ION IMPLANTATION OF MATERIALSSURFACE ENGINEERING BY ION IMPLANTATION OF MATERIALS
Younes Sina a,*, Carl J. McHargue b,**
a Material Science and Engineering Dep., The University of Tennessee, Knoxville, TN 37996-0759, USAb Center for Materials Processing, The University of Tennessee, Knoxville, USA, TN 37996-0759,
INTRODUCTIONION IMPLANTATION CAN BE USED TO
ANALYZING TECHNIQUES
ADVANTAGES AND DISADVANTAGES OF ION IMPLANTATION
MODIFICATION OF STRUCTURE
REFERENCES
ABSTRACT
CONTACT
Younes SinaThe University of Tennessee, Knoxville, Material Science and Engineering DepartmentEmail: [email protected]:865-258 1964 Website:http://www.younessina.blogspot.com
Ion implantation consists of directing an energetic ion onto surface of a target material. The ions penetrate through the target and gradually loss their energy and finally come to rest many atomic layers below the surface. Ion implantation technique is being investigated as a general method for altering the near-surface properties of metals, ceramics, and polymers.
Ion implantation is an attractive technique for altering the near-surface properties of a wide range of materials. Any element can be injected into a solid forming usually a non-equilibrium compositions and structures that can not be achieved by conventional processing methods.
•Alter near-surface composition to produce both equilibrium and non-equilibrium compositions•Change crystalline structure•Change mechanical properties•Change chemical reactivity•Produce nanophases•Pattern substrates
Some of ion implantation applications are summarized in the following table:
Mechanical Chemical Electromagnetic
Wear Corrosion superconductivity
Friction Oxidation Photoconductivity
Hardness Catalysis Resistivity
Fatigue Electrochemical Magnetic properties
Plasticity Reflectivity
Ductility Dielectric properties
Adhesion
Ion implantation technique allows some of ions penetrate into the surface of a material (including metals, ceramics, and polymers) producing a non-
equilibrium structure. Forming of amorphous structures, supersaturated solutions and metastable compounds
may modify some of the material properties.
The University of Tennessee, Knoxville
Advantages of Ion Implantation:• Controlled doping • Depth of penetration can be controlled by controlling energy of theion beam• Concentration higher than solid solubility possible• Reactive ions can also be implanted• Implantation of different ions• Low temperature processDisadvantages of Ion Implantation:• Costly accelerator for ion implantation• Low throughput of the implanter
Hip Implant
90% of hip replacements are implanted with nitrogen
Hip Implant
90% of hip replacements are implanted with nitrogen
Nanoindentation-Al2O3
Implanted crystalline samples: hardness ~1.3 × unimplanted
Implanted amorphous samples: hardness ~0.5×unimplanted
Nanoindentation-Al2O3
Implanted crystalline samples: hardness ~1.3 × unimplanted
Implanted amorphous samples: hardness ~0.5×unimplanted
Accelerator for ion implantationAccelerator for ion implantation
The most important analyzing methods to study ion implanted materials are Rutherford Backscattering (RBS), Transmission Electron Microscopy (TEM), and Photoluminescence Spectroscopy (PL).
Nanometer Iron Particles• Sapphire implanted with 1×1017 Fe/cm2(160 keV)at RT• 1-3 nm pure bcc iron single crystals
Nanometer Iron Particles• Sapphire implanted with 1×1017 Fe/cm2(160 keV)at RT• 1-3 nm pure bcc iron single crystals
Interaction of Ions with TargetInteraction of Ions with Target
1. Materials Science Reports, Ion Implantation and Annealing of Crystalline Oxides, C.W. White, C.J. McHargue, P.S. Sklad, L.A. Boatner, and G.C. Farlow
2. Surface Engineering of Metals: principles, equipment, technologies, By Tadeusz Burakowski, Tadeusz Wierzchoń
IONIMPLANTAION PROCESS
