Paper Title:
The Friction and Wear Behaviors of Dental Porcelains with Different Surface Strengthening Techniques
  Abstract

The friction and wear behavior of dental feldspathic ceramics, treated distinctively by three routine surface strengthening techniques (auto-glazing, ion exchange and polishing), were investigated by cyclic sliding against pure titanium ball on a modified fretting friction and wear test rig under imitating oral enviorment. The wear scars of the samples were characterized with 3-D con focused laser-scanning microscope. The wear depths were analyzed statistically and the element concentrations of Ti, Al and Si on the scar before and after surface treatments were determined with energy dispersion spectrometry. The correlations between the wear behaviors and micro hardness or toughness were also compared. The results show the present routine surface strengthening methods have little effects on the friction coefficient of dental porcelain, but play an role in improving the wear behavior of ceramics at the early stage of sliding cycles. The effect of surface ion exchange is better than that of auto-glazing or polishing. The friction and wear behavior of dental ceramics depend on the material itself especially after the surface-strengthening layer disappeared. Abrasive wear, adhesion and micro cracking characterize the wear mechanism of dental feldspathic ceramics after the surface-strengthening treatments.

  Info
Periodical
Key Engineering Materials (Volumes 288-289)
Edited by
Xingdong Zhang, Junzo Tanaka, Yaoting Yu and Yasuhiko Tabata
Pages
637-640
DOI
10.4028/www.scientific.net/KEM.288-289.637
Citation
H.Y. Yu, Z. R. Zhou, L.H. He, "The Friction and Wear Behaviors of Dental Porcelains with Different Surface Strengthening Techniques", Key Engineering Materials, Vols. 288-289, pp. 637-640, 2005
Online since
June 2005
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: M.Q. Yu, S.G. Fan, Chuan Bin Wang, Lian Meng Zhang
171
Authors: Bo Zhao, Yan Wu, C.S. Liu, A.H. Gao, Xun Sheng Zhu
Abstract:On the basis of analyzing the brittleness, ductileity, and the removal mechanisms of the^nano-ZrO2 Ceramics, the critical ductile grinding...
171
Authors: Yi Wen Hu, Xin Zhang, Yin Wu, Wen Jie Si
Abstract:Zirconia ceramics are now widely used in dental restorations. The veneering porcelain chipping happens sometimes in zirconia-porcelain...
528
Authors: Chang He Li, Ling Yun Qi, Lin Gang Li, Yu Cheng Ding
Abstract:This study was focused on the theoretical analysis and experimental investigations about the frictional wear of nanometric zirconia dental...
26
Authors: Yong Xing Tong, Li Qin Wang, Le Gu, Bo Peng
Abstract:The friction and wear behavior of Si3N4, SiC and ZrO2 sliding against M50 bearing steel under vacuum...
973