Nano-mechanical properties and tribological behaviors of Y-PSZ/BGC bio-ceramics

作者：Huang Xiaolong^*; Wang Qingliang; Ge Shirong

来源：Lubrication Engineering, 2006, (12): 23-25.

• Bioaotive Glass Ceramic (BGC)
• Biotribology
• Friction coefficient
• Nanoindentation
• Wear rate
• Wear surfaces
• Yttria partially stabilized zirconia (YPSZ)

Bioaotive Glass Ceramic (BGC) particles were synthesized. Pressureless sintering (PS) was used to prepare yttria-partially-stabilized zirconia/BGC composites. The nanohardness and elastic modulus evaluations of all of BGC/par-tially stabilized zirconia (PSZ) ceramics were obtained by nanoindentation tests. It is found that 10%-15% BGC (weight) composites show the highest hardness values. A pin-slid-on-disc tribometer was run to observe the tribological behaviors of these bioceramics against ultrahigh molecular weight polyethylene (UHMWPE) under human plasma lubrication. The experimental results demonstrate the lowest friction coefficient and wear rate are obtained for composite containing 10% weight for BGC. The analysis of nitrogen element indicates that the serous protein deposits on the friction and wear surfaces.

• 出版日期2006
• 单位中国矿业大学（北京）