(武漢理工大學(xué) 生物材料與工程研究中心, 武漢 430070)
摘 要: 通過(guò)對(duì)不同溫度和保溫時(shí)間制備的多孔HA種植體試樣進(jìn)行測(cè)試分析，研究了燒結(jié)條件對(duì)材料氣孔率、 體積密度、 吸水率、 晶粒尺寸和彎曲強(qiáng)度的影響。 結(jié)果表明： 隨著燒結(jié)溫度的升高和保溫時(shí)間的延長(zhǎng)， 氣孔率和吸水率減小， 體積密度和彎曲強(qiáng)度升高；晶粒長(zhǎng)大填充氣孔， 使多孔材料孔隙率下降而強(qiáng)度增加。
關(guān)鍵字: 燒結(jié)條件； 氣孔率； 彎曲強(qiáng)度； 多孔種植體
LI Shi-pu, HE Jian-hua
（Biomedical Materials and Engineering Research Center,
Wuhan University of Technology, Wuhan 430070, China）
Abstract:Through the testing and analysis of porous HA implant prepared under different sintering conditions, the effects of sintering temperature and time on the porosity, bulk density, water absorption, grain size and bending strength were studied. The results show that the porosity and water absorption decrease and the bulk density and bending strength increase, along with the sintering temperature raising and the time prolonging. The grains growth filling in the pores causes the porosity to decrease and the strength of the porous material to increase.
Key words: sintering condition; porosity; bending strength; porousi
