| 制备工艺参数对氟羟基磷灰石氟替代量和形貌的影响 |
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| 引用本文： | 朱庆霞,江伟辉,邵川,王洪达. 制备工艺参数对氟羟基磷灰石氟替代量和形貌的影响[J]. 中国陶瓷, 2011, 0(12) |
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| 作者姓名： | 朱庆霞 江伟辉 邵川 王洪达 |
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| 作者单位： | 景德镇陶瓷学院材料科学与工程学院; |
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| 基金项目： | 国家自然科学基金(50962006); 江西省青年自然科学基金(2009GQC0074) |
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| 摘 要： | 通过沉淀法制备了纳米氟羟基磷灰石(FHA)。研究了合成温度、初始氟离子浓度和pH值对氟替代量和形貌的影响。用透射电镜观察了FHA的形貌,用氟选择电极法测定了FHA中的氟含量。结果表明:随着合成温度或原料中氟浓度的升高,FHA晶粒尺寸和长径比增加;随着pH值的提高,长径比减小。合成FHA中氟含量随初始氟离子浓度和合成温度的增加而非线性增加,考虑到OH~-和F~-对羟基空位的竞争,高pH值不利于氟替代。
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| 关 键 词： | 氟羟基磷灰石 氟替代量 形貌 制备工艺参数 |
THE EFFECT OF PREPARATION PARAMETERS ON FLUORIDE SUBSITUTION CONTENT AND MORPHOLOGY OF FLUORHYDROXYAPATITE |
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| Zhu Qingxia,Jiang Weihui,Shao Chuan,Wang Hongda. THE EFFECT OF PREPARATION PARAMETERS ON FLUORIDE SUBSITUTION CONTENT AND MORPHOLOGY OF FLUORHYDROXYAPATITE[J]. China Ceramics, 2011, 0(12) |
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| Authors: | Zhu Qingxia Jiang Weihui Shao Chuan Wang Hongda |
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| Affiliation: | Zhu Qingxia,Jiang Weihui,Shao Chuan,Wang Hongda (Jingdezhen Ceramic Institute,Jingdezhen 333001) |
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| Abstract: | The nanosized fluorhydroxyapatite(FHA) had been synthesized by aqueous precipitation method. The effects of synthesis temperature,molar ratio of NH_4F to Ca(N03)2 ? 4H_2O in the initial reagents[n(F~-)/n(Ca~(2+))] and the pH value on the fluoride substitution and morphology were investigated.The morphology of FHA was observed by transmission electron microscope.The fluoride content in FHA was determined by F-selective electrode.The results show that the size and aspect ratio of FHA crystals increase as the ... |
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| Keywords: | Fluorhydroxyapatite Fluoride substitution Morphology Preparation parameters |
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