A novel akermanite bioceramic: Preparation and characteristics
A novel akermanite bioceramic: Preparation and characteristics
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DOI：
10.1177/0885328206057953
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发表时间：
2006-10-01
影响因子：
2.9
通讯作者：
Chang, Jiang
中科院分区：
文献类型：
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作者：
Wu, Chengtie;Chang, Jiang
镁铝石 (Ca2MgSi2O7) 陶瓷是通过在 1370 摄氏度下烧结镁铝石粉末压坯 6 小时而制备的。研究了镁铝石陶瓷的烧结行为和机械性能。通过在模拟体液（SBF）中浸泡来评估阿克曼石陶瓷的生物活性，并通过X射线衍射（XRD）、能量色散光谱（EDS）和扫描电子显微镜（SEM）对浸泡后阿克曼石陶瓷表面羟基磷灰石（HAp）的形成进行表征。结果表明，镁铝石陶瓷的抗弯强度可达176 MPa，断裂韧性为1.83 MPa·m(1/2)，并且镁铝石陶瓷在SBF中浸泡时可在其表面诱导HAp形成。我们的研究结果表明，Akermanite 陶瓷具有生物活性，并且与 HAp 陶瓷相比具有改善的机械性能，可用作生物活性植入材料。
Akermanite (Ca2MgSi2O7) ceramics are prepared by sintering akermanite powder compacts at 1370 degrees C for 6 h. The sintering behavior and mechanical properties of akermanite ceramics are investigated. The bioactivity of akermanite ceramics is evaluated by soaking in simulated body fluid (SBF), and hydroxyapatite (HAp) formation on the surface of akermanite ceramics after soaking is characterized by X-ray diffraction (XRD), energy dispersive spectrometry (EDS), and scanning electron microscopy (SEM). The results show that the bending strength of akermanite ceramics can reach 176 MPa, the fracture toughness is 1.83 MPa m(1/2), and akermanite ceramics can induce HAp formation on their surface when soaked in SBF. Our results indicate that akermanite ceramics are bioactive, and possess improved mechanical properties compared with those of HAp ceramics and may be used as bioactive implant materials.