Fabrication of hydroxyapatite ceramic with controlled porosity
Fabrication of hydroxyapatite ceramic with controlled porosity
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DOI：
10.1023/a:1018591724140
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发表时间：
1997-04-01
影响因子：
3.7
通讯作者：
Liu, DM
中科院分区：
文献类型：
--
作者：
Liu, DM
以聚乙烯醇缩丁醛(PVB)为造孔剂，制备了多孔羟基磷灰石(HAP)陶瓷。考察了PVB颗粒大小、烧结时间、成型压力(模压工艺)等制备条件对产物孔径/结构及孔径分布的影响。实验结果表明，可制得孔体积分数、孔尺寸和孔结构可控的HAP陶瓷。这为设计具有不同孔隙率的羟基磷灰石陶瓷提供了可能。
Porous hydroxyapatite (HAp) ceramics were fabricated using poly vinyl butyral (PVB) as a porosifier. The effects of preparation conditions involving PVB particle size, sintering time, and forming pressure (die-pressing technique) on the resultant pore size/structure as well as the pore size distribution were investigated. The experimental results showed that the HAp ceramics with controlled pore characteristics such as pore volume fraction, pore size and pore structure are achievable. It provides the possibility to design HAp ceramics with diverse porosities simulating that of natural bone.