TY - GEN
T1 - Phase interactions in monoclinic zirconia reinforced hydroxylapatite bioceramics
AU - Ergun, Celaletdin
AU - Evis, Zafer
AU - Doremus, Robert H.
PY - 2004
Y1 - 2004
N2 - Hydroxylapatite composites with pure zirconia were prepared with pressureless air sintering and hot pressing for 1 hour at different temperatures between 900°C and 1300°C. The interaction between the phases was monitored with XRD and thermal analysis. At sintering temperatures higher than 1000°C, an apparent Ca diffusion occurred from hydroxylapatite to pure zirconia phase and changed its structure from monoclinic to tetragonal/cubic. In the mean time, hydroxylapatite decomposed and formed tricalcium phosphate. Also, a reaction was occurred at 1220°C between hydroxylapatite and zirconia phase forming CaZrO3. The existence of air in the processing environment increased the reactivity between hydroxylapatite and zirconia.
AB - Hydroxylapatite composites with pure zirconia were prepared with pressureless air sintering and hot pressing for 1 hour at different temperatures between 900°C and 1300°C. The interaction between the phases was monitored with XRD and thermal analysis. At sintering temperatures higher than 1000°C, an apparent Ca diffusion occurred from hydroxylapatite to pure zirconia phase and changed its structure from monoclinic to tetragonal/cubic. In the mean time, hydroxylapatite decomposed and formed tricalcium phosphate. Also, a reaction was occurred at 1220°C between hydroxylapatite and zirconia phase forming CaZrO3. The existence of air in the processing environment increased the reactivity between hydroxylapatite and zirconia.
UR - https://www.scopus.com/pages/publications/8844243311
U2 - 10.1115/esda2004-58178
DO - 10.1115/esda2004-58178
M3 - Conference contribution
AN - SCOPUS:8844243311
SN - 0791841731
SN - 9780791841730
T3 - Proceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004
SP - 311
EP - 316
BT - Proceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004
PB - American Society of Mechanical Engineers
T2 - Proceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis - 2004
Y2 - 19 July 2004 through 22 July 2004
ER -