TY - GEN
T1 - Fabrication of Al2O3/ZrO2 micro/nano composites using powder alkoxide mixtures
AU - Boonsorn, W.
AU - Watcharamaisakul, S.
AU - Golman, B.
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Al2O3/ZrO2 composites have been investigated as the bio-inert material. In the present work Al2O3/ZrO2 Micro/Nano composites were prepared by colloidal method. The effects of the concentration of zirconium propoxide and the sintering temperature were studied on the distribution of ZrO2 nano-grains in Al2O3 matrix and mechanical properties of composites. XRD patterns for all compositions showed a single phase of a-Al2O3, and the tetragonal and monoclinic ZrO2 phases. Samples sintered at 1650°C demonstrated the high bulk density with value of 86-92% of theoretical density. ZrO2 nano-grains were dispersed within Al2O3 grain and the grain boundary. The sample of the highest flexural strength of 710 MPa was synthesized using 100% Zr propoxide solution and sintered at 1650° C. The flexural strength was found to increase with increasing the concentration of Zr propoxide and sintering temperature.
AB - Al2O3/ZrO2 composites have been investigated as the bio-inert material. In the present work Al2O3/ZrO2 Micro/Nano composites were prepared by colloidal method. The effects of the concentration of zirconium propoxide and the sintering temperature were studied on the distribution of ZrO2 nano-grains in Al2O3 matrix and mechanical properties of composites. XRD patterns for all compositions showed a single phase of a-Al2O3, and the tetragonal and monoclinic ZrO2 phases. Samples sintered at 1650°C demonstrated the high bulk density with value of 86-92% of theoretical density. ZrO2 nano-grains were dispersed within Al2O3 grain and the grain boundary. The sample of the highest flexural strength of 710 MPa was synthesized using 100% Zr propoxide solution and sintered at 1650° C. The flexural strength was found to increase with increasing the concentration of Zr propoxide and sintering temperature.
KW - Colloidal process
KW - Micro/nano composite
UR - http://www.scopus.com/inward/record.url?scp=84901479104&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84901479104&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.931-932.132
DO - 10.4028/www.scientific.net/AMR.931-932.132
M3 - Conference contribution
AN - SCOPUS:84901479104
SN - 9783038350903
T3 - Advanced Materials Research
SP - 132
EP - 136
BT - KKU International Engineering Conference
PB - Trans Tech Publications
T2 - 5th KKU International Engineering Conference 2014, KKU-IENC 2014
Y2 - 27 March 2014 through 29 March 2014
ER -