| F掺杂对纳米Al_2O_3/HA复合陶瓷的结构与性能影响 |
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| 引用本文： | 窦金河,张木蕃,张聪毅,张希华. F掺杂对纳米Al_2O_3/HA复合陶瓷的结构与性能影响[J]. 生物医学工程研究, 2017, 0(2). DOI: 10.19529/j.cnki.1672-6278.2017.02.13 |
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| 作者姓名： | 窦金河 张木蕃 张聪毅 张希华 |
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| 作者单位： | 1. 山东大学材料科学与工程学院,济南,250061;2. 北京大学第一医院,北京,100034 |
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| 基金项目： | 山东省自然科学基金资助重点项目(ZR2013EMZ003) |
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| 摘 要： | 本研究采用化学沉淀法制备了纳米Al_2O_3/HA复合粉体,采用热压烧结法制备了Al_2O_3/HA复合生物陶瓷,并研究了F掺杂量对复合陶瓷物相组成和力学性能的影响。结果证明复合陶瓷的力学性能随着F掺杂量的提高而逐渐增大,当F掺杂量x=1时,复合陶瓷的力学性能最佳,其弯曲强度和断裂韧性分别为147.2 MPa和2.19 MPa·m~(1/2)。当F掺杂量高于0.5时,可以抑制复合陶瓷中HA的分解,并且在烧结过程中有AlF3相生成,可促进复合陶瓷的致密化。F掺杂可以提高复合陶瓷的生物活性,但是F掺杂量对复合陶瓷的生物活性影响不大。
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| 关 键 词： | 氟掺杂 羟基磷灰石 氧化铝 生物陶瓷 力学性能 |
Influence of F Adopting on the Structure and Properties of Alumina/hydroxyapatite Composites |
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| DOU Jinhe,ZHANG Mufan,ZHANG Congyi,ZHANG Xihua. Influence of F Adopting on the Structure and Properties of Alumina/hydroxyapatite Composites[J]. Journal Of Blomedical Englneerlng Research, 2017, 0(2). DOI: 10.19529/j.cnki.1672-6278.2017.02.13 |
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| Authors: | DOU Jinhe ZHANG Mufan ZHANG Congyi ZHANG Xihua |
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| Abstract: | Nano-Al2O3/HA composite powders were synthesized by chemical precipitation method, and the nano-Al2O3/HA composites were prepared by hot pressed sintering.The influence of F adopting on the structure and properties of nano-Al2O3/HA composites were studied.The research showed that mechanical properties of the Al2O3/HA composites could be improved by F doping, The bending strength and fracture toughness were 147.2 MPa and 2.19 MPa·m-0.5 when the F content was 1 and the decomposition of HA could be inhibited with F addition.What's more, the obtained AlF3 phase could promote the densification process of composite ceramics.F doping can improve the bioactivity of the composite ceramics, but the F content has little effect on the bioactivity of the composite ceramics. |
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| Keywords: | F Adopting Hydroxyapatite Ceramics Sintering Mechanical properties |
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