Effect of Ion-Implantation on the Microstructure of Si3N4 Based Ceramics

J.K. Babcsán; Maria Berkes Maros; N. Wanderka; D. Klaffke; Helmut Schubert

doi:10.4028/www.scientific.net/KEM.290.234

Paper Titles

Fracture Mechanisms in Laminates in the Alumina - Titania System
p.208

R-Curves in Al₂O₃ - Al₂O₃/ZrO₂ Laminates
p.214

Contact Fatigue in Ceramic Laminated Composites
p.222

Carbon Nanotubes Prepared by CVD
p.230

Effect of Ion-Implantation on the Microstructure of Si₃N₄ Based Ceramics
p.234

Size Effects in Micro- and Nanocarbon Added C/Si₃N₄ Composite Prepared by Hot Pressing
p.238

Comparison of Silicon Nitrides with Carbon Additions Prepared by Two Different Sintering Methods
p.242

Effect of Rare Earth Oxide and Rare Earth-Alumina-Silica Glass on Mechanical Properties of Liquid Phase Sintered Alumina Ceramics
p.246

Mechanical Properties and Microstructure of α-SiAlON Based Cutting Tools
p.250

HomeKey Engineering MaterialsKey Engineering Materials Vol. 290Effect of Ion-Implantation on the Microstructure...

Effect of Ion-Implantation on the Microstructure of Si₃N₄ Based Ceramics

Abstract:

Si3N4 based ceramics that made by hot isostatic press, were implanted at room temperature with N+ - and C+ - ions with energy of 500 keV and 2 MeV, respectively. The specimens were irradiated at a fluence of 1017 ion/cm2. The microstructure changes after ionimplantation in the surface layer were investigated by transmission electron microscopy (TEM). The effect of ion-implantation on the tribological properties was also studied. After N+ and C+ ionimplantation an amorphous layer near to the surface has been formed which was observed by electron diffraction measurement. The wear tests were performed by means of a ball-on-disk configuration using commercially available Si3N4 ball. The friction coefficient was measured online, the wear coefficient was determined on the base of the wear scar sizes. The specific wear rate was reduced by N+-implantation and the coefficient of friction was lower in the initial stage in both cases.

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Periodical:

Key Engineering Materials (Volume 290)

Pages:

234-237

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.290.234

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Online since:

July 2005

Authors:

J.K. Babcsán, Maria Berkes Maros, N. Wanderka, D. Klaffke, Helmut Schubert

Keywords:

Ball-on-Disc Test, Ion Implantation, Tribology, Wear

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