TY - JOUR
T1 - Wear of alumina/zirconia nano-composite for ceramic/ceramic joint prostheses
AU - Ikeuchi, K.
AU - Morita, Y.
AU - Nakata, K.
AU - Kim, Y. H.
AU - Sekino, T.
AU - Niihara, K.
N1 - Funding Information:
The authors would like to acknowledge the financial support of Japanese Ministry of Health, Labour and Welfare. We would also like to acknowledge Kyocera Corporation for providing the medical grade alumina components as the reference material.
PY - 2003
Y1 - 2003
N2 - Wear properties of alumina, zirconia and alumina/zirconia nano-composite ceramics were investigated with two types of wear apparatus. An end face apparatus was used to measure wear between flat surfaces in distilled water. Results show that wear of alumina is lower than that of zirconia under poor lubrication conditions. According to the observed wear surfaces, adhesion and micro-ploughing are the major wear mechanism for zirconia. The wear rate under concentrated contact pressure was measured with a sphere on flat apparatus in bovine serum solution. In contrast to the former test, alumina shows higher wear rate than zirconia due to micro-cracking. Wear of alumina/zirconia nano-composite ceramic is lower than alumina and zirconia monolithic ceramics during both tests. In other words, the nano-composite ceramics shows higher wear resistance irrespective of lubrication conditions and contact pressure. It is concluded that the alumina/zirconia nano-composite ceramics have excellent properties for ceramic/ceramic joint prostheses.
AB - Wear properties of alumina, zirconia and alumina/zirconia nano-composite ceramics were investigated with two types of wear apparatus. An end face apparatus was used to measure wear between flat surfaces in distilled water. Results show that wear of alumina is lower than that of zirconia under poor lubrication conditions. According to the observed wear surfaces, adhesion and micro-ploughing are the major wear mechanism for zirconia. The wear rate under concentrated contact pressure was measured with a sphere on flat apparatus in bovine serum solution. In contrast to the former test, alumina shows higher wear rate than zirconia due to micro-cracking. Wear of alumina/zirconia nano-composite ceramic is lower than alumina and zirconia monolithic ceramics during both tests. In other words, the nano-composite ceramics shows higher wear resistance irrespective of lubrication conditions and contact pressure. It is concluded that the alumina/zirconia nano-composite ceramics have excellent properties for ceramic/ceramic joint prostheses.
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U2 - 10.1016/s0167-8922(03)80137-2
DO - 10.1016/s0167-8922(03)80137-2
M3 - Article
AN - SCOPUS:0042265156
VL - 41
SP - 257
EP - 261
JO - Tribology Series
JF - Tribology Series
SN - 0167-8922
ER -