[Influences of R2O-Al2O3-B2O3-SiO2 system glass and superfine alpha-Al2O3 on the sintering and phase transition of hydroxyapatite ceramics].
The effects of R2O-Al2O3-B2O3-SiO2 system glass and superfine alpha-Al2O3 on the sintering and phase transition of hydroxyapatite (HAP) ceramics were assessed. The results showed that alpha-Al2O3 impeded the sintering of HAP and raised the sintering temperature. When glass and alpha-Al2O3 were used together to reinforce HAP ceramics, better results could be obtained; the bending strength of multiphase HAP ceramics approached 106 MPa when 10% (wt) alpha-Al2O3 and 20%(wt) glass were used and sintered at 1200 for 1 h.
Wang
Zhiqiang
Z
School of Chemical Engineering, Dalian University of Technology, Dalian 116012.
Chen
Xiaoxu
X
Cai
Yingji
Y
Lü
Bingling
B
D000537:Aluminum Oxide / Q000737:chemistry*; D001672:Biocompatible Materials; D001896:Boron Compounds / Q000737:chemistry; D002516:Ceramics / Q000138:chemical synthesis / Q000737:chemistry; D017886:Durapatite / Q000138:chemical synthesis / Q000737:chemistry; D005898:Glass / Q000737:chemistry*; D008422:Materials Testing; D012822:Silicon Dioxide / Q000737:chemistry; D013718:Tensile Strength
D001672:Biocompatible Materials; D001896:Boron Compounds; C042168:boron oxide; D012822:Silicon Dioxide; D017886:Durapatite; D000537:Aluminum Oxide