摘要
以煅烧后的牛骨粉体(羟基磷灰石)为原料,以尿素为造孔剂,模压后烧结,制备出多孔生物陶瓷。考察了球磨时间对牛骨粉体粒径的影响,研究了尿素添加量的对多孔陶瓷微结构和力学性能的影响。多孔生物陶瓷的孔隙率约为34%～60%,平均孔径约为110μm,抗弯强度,压缩强度和弹性模量分别位于40.15MPa～64.72MPa,7.05MPa～10.48MPa,5.98～9.72GPa;微结构和力学性能均能满足人工骨替代材料要求。
The porous hydroxyapatite （HAP） bioceramics was prepared using HAP powder from calcined bovine bone and urea as pore-creating agent. The influence of milling time on the particle size, and the influences of urea content on the micostrcuture and mechanical properties were researched. The average pore size is about 110 μm. The porosities distribute from 34%-60%. And the flexural strength, compressive strength and Young＇ s modulus of the porous bioceramics were 40.15MPa- 64.72MPa, 7.05MPa- 10.48MPa and 5.98 9.72GPa, respectively. All the results can meet the requirements of the human bone substitute.
出处
《中国陶瓷》
CAS
CSCD
北大核心
2009年第11期28-31,共4页
China Ceramics
基金
高等学校博士学科点新教师科研基金资助项目
编号:20070359034
关键词
牛骨
羟基磷灰石
多孔生物陶瓷
bovine bone
hydroxyapatite, porous bioceramics, mechanical property
