磷酸钙陶瓷纤维的研究

陈晓明

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武汉理工大学学报 ›› 1996, Vol. 18 ›› Issue (2) : 104-106.
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磷酸钙陶瓷纤维的研究

  • 陈晓明
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用前驱体法制备出了磷酸钙陶瓷纤维,运用X-射线衍射仪、扫描电镜等测试手段,对磷酸钙纤维的组成进行了分析,结果表明:Na-Alg(海藻酸钠)/Na4P2O7比和烧结温度等对纤维的矿物组成有很大影响。当NaAlg/Na4P2O7比大于2.8时,可以得到羟基磷灰石(HAP)和缺钙型HAP(DHAP)纤维;将HAP+DHAP纤维加热到1100℃时,有β-TCP产生,温度高于1200℃时β-TCP能形成稳定的α-TCP。

Abstract

A Study of Calcium Phosphate Ceramic Fiber Chen Xiaoming; Yan Yuhua; Luo Zebo (Biomedical Material and Engineering Centre, WUT, Wuhan 430070,China)Calcium phosphate ceramic fiber is made by means of precursor technique and studied by SEM and XRD. The results show that:When the Na-Alg (sodium alginate) /Na4P2O7 Weight ratio is below 2. 8,the fiber consists of pure HAP which Ca/p ratio is near 1. 67 and β-TCP,the quantity of HAP increases with the  increase of the ratio,When that ratio is more than 2. 8,it mainly consists of HAP and contains a few of DHAP (defective hydroxyapatite )with Ca/P ratio is less than 1. 67. The sintered fibers consisting of abundant HAP and a few DHAP at 1100:C. β-TCP which comes from the decomposition of DHAP can be observed,and β-TCP can be transformed completely into stable α-TCP above 1200℃.: calcium phosphate; fiber; ceramic; synthesize

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陈晓明 . 磷酸钙陶瓷纤维的研究 . 武汉理工大学学报. 1996, 18(2): 104-106

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