【作者】 黄颖璞； 陈涵；

【Author】 HUANG Yingpu;CHEN Han;College of Materials Science and Engineering,Nanjing Tech University;

【机构】 南京工业大学材料科学与工程学院；

【摘要】 本研究将生物陶瓷材料羟基磷灰石(HA)与无铅压电陶瓷钛酸铋钠(BNT)进行复合,研究了HA/BNT的复合比例对其压电性能和生物降解性能的影响。实验结果表明:在BNT质量分数为70wt%时,压电常数为0.5 pC/N,达到与人体骨骼相近的水平;其在37℃的模拟体液中浸泡14天的质量损失率为32.92%,表现出良好的生物降解效果。更多还原

【Abstract】 In this study,the bio-ceramic material hydroxyapatite(HA) was composited with the lead-free piezoelectric ceramic sodium bismuth titanate(BNT),and the effect of HA/BNT ratio on the piezoelectric property and biodegradability of HA/BNT composite bio-piezoelectric ceramics was studied.The experimental results show that when the mass fraction of BNT is 70wt%,the piezoelectric constant is 0.5 pC/N,which is close to the level of human bones.Its mass loss rate on the 14th day under 37℃ simulated body fluid immersion is 32.92%,which shows good biodegradability.更多还原