TY - JOUR
T1 - Tribological properties of biocompatible Ti-10W and Ti-7.5TiC-7.5W
AU - Choi, Myounggeun
AU - Hong, Eunji
AU - So, Jungwon
AU - Song, Seokbeom
AU - Kim, Byoung Suck
AU - Yamamoto, Akiko
AU - Kim, Yong Suk
AU - Cho, Jinhan
AU - Choe, Heeman
PY - 2014/2/1
Y1 - 2014/2/1
N2 - This study investigates and compares the microstructure, biocompatibility, and tribological properties of two different Ti-based composites, Ti. -10W and Ti. -7.5TiC. -7.5W, with those of pure Ti for their potential use in biomedical applications. In particular, cold and hot isostatic-pressing and arc-melting methods were utilized and compared for the microstructure of the composites. Nano-scratch measurements and pin-on-disk wear tests were employed to understand their tribological behavior. As compared to pure Ti, Ti. -10W and Ti. -7.5TiC. -7.5W showed significantly improved nano-scratch resistance (by 85 and 77%, respectively) and wear resistance (by 64 and 66%, respectively), in good agreement with hardness measurements. For biocompatibility examination, both microculture tetrazolium test (MTT) and water soluble tetrazolium (WST-1) test were used to quantify the cell viability of human osteoblasts and mouse fibroblasts on the materials. Both of the Ti-based composites showed acceptable biocompatibility in comparison with the pure Ti control.
AB - This study investigates and compares the microstructure, biocompatibility, and tribological properties of two different Ti-based composites, Ti. -10W and Ti. -7.5TiC. -7.5W, with those of pure Ti for their potential use in biomedical applications. In particular, cold and hot isostatic-pressing and arc-melting methods were utilized and compared for the microstructure of the composites. Nano-scratch measurements and pin-on-disk wear tests were employed to understand their tribological behavior. As compared to pure Ti, Ti. -10W and Ti. -7.5TiC. -7.5W showed significantly improved nano-scratch resistance (by 85 and 77%, respectively) and wear resistance (by 64 and 66%, respectively), in good agreement with hardness measurements. For biocompatibility examination, both microculture tetrazolium test (MTT) and water soluble tetrazolium (WST-1) test were used to quantify the cell viability of human osteoblasts and mouse fibroblasts on the materials. Both of the Ti-based composites showed acceptable biocompatibility in comparison with the pure Ti control.
KW - Biocompatibility
KW - Cell proliferation
KW - Titanium
KW - Wear mechanism
UR - http://www.scopus.com/inward/record.url?scp=84890203098&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84890203098&partnerID=8YFLogxK
U2 - 10.1016/j.jmbbm.2013.11.014
DO - 10.1016/j.jmbbm.2013.11.014
M3 - Article
C2 - 24333672
AN - SCOPUS:84890203098
VL - 30
SP - 214
EP - 222
JO - Journal of the Mechanical Behavior of Biomedical Materials
JF - Journal of the Mechanical Behavior of Biomedical Materials
SN - 1751-6161
ER -