Fabrication of Porous Hydroxyapatite Ceramics by Microwave Sintering Method
Microwave processing of porous hydroxyapatite ceramics was investigated in a dual frequency microwave-sintering furnace. The results revealed that microwave-sintering process could get sintered ceramics at much shorter sintering time and at lower sintering temperature than that of the conventionally heat-sintering process. Further, the microwave-sintered samples showed much smaller grain size and more uniform microstructure and reached a comparable compressive strength. The mechanism of rapid heating behavior of hydroxyapatite ceramics in microwave was also discussed. The results revealed that microwave processing was a promising method for sintering porous hydroxyapatite ceramics.
Xingdong Zhang, Junzo Tanaka, Yaoting Yu and Yasuhiko Tabata
X. L. Wang et al., "Fabrication of Porous Hydroxyapatite Ceramics by Microwave Sintering Method", Key Engineering Materials, Vols. 288-289, pp. 529-532, 2005