| 羟基磷灰石团聚体的冲击波活化与烧结研究 |
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| 引用本文： | 廖其龙,杨世源,蔡灵仓,郑昌琼. 羟基磷灰石团聚体的冲击波活化与烧结研究[J]. 高压物理学报, 2003, 17(3): 209-213 |
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| 作者姓名： | 廖其龙 杨世源 蔡灵仓 郑昌琼 |
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| 作者单位： | 西南科技大学材料科学与工程学院,四川绵阳,621002;中国工程物理研究院流体物理研究所冲击波物理与爆轰物理实验室,四川绵阳,621900;四川大学材料科学与工程学院,四川成都,610065 |
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| 摘 要： | 研究了经冲击波处理的羟基磷灰石粉末团聚体的活性及其烧结性能。X射线衍射（XRD）及扫描电镜（SEM）分析表明，冲击波对羟基磷灰石团聚体粉末具有明显的均化与细化作用，并产生了一定程度的晶格畸变，可促进羟基磷灰石陶瓷的烧结。粉体中储存的缺陷能在烧结过程中释放，使受冲击试样比未受冲击试样达到最大线收缩率时的温度降低70 ℃，羟基磷灰石陶瓷的强度和密度明显提高。
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| 关 键 词： | 羟基磷灰石 冲击波活化 烧结性能 生物医用陶瓷 |
| 文章编号： | 1000-5773(2003)03-0209-05 |
| 收稿时间： | 2002-12-25; |
| 修稿时间： | 2002-12-25 |
Shock-Activating and Sintering of Hydroxyapatite Agglomerate |
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| LIAO Qi-Long ,YANG Shi-Yuan ,CAI Ling-Cang ,ZHENG Chang-Qiong. Shock-Activating and Sintering of Hydroxyapatite Agglomerate[J]. Chinese Journal of High Pressure Physics, 2003, 17(3): 209-213 |
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| Authors: | LIAO Qi-Long YANG Shi-Yuan CAI Ling-Cang ZHENG Chang-Qiong |
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| Affiliation: | LIAO Qi-Long 1,YANG Shi-Yuan 1,CAI Ling-Cang 2,ZHENG Chang-Qiong 3 |
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| Abstract: | Hydroxyapatite(HA) is an effective material used in bone prostheses.The activating and sintering characteristics of hydroxyapatite agglomerate treated by shock wave were studied .Using XRD and SEM the grain size refinement,homogenization and lattice deformation were observed in shocked HA powders, which can promote sintering of HA ceramics.The extra energy stored in shocked powders will be released during sintering process. The temperature of maximum shrink rate of shocked sample is about 70 lower than that of unshocked one.The strength and density of HA ceramics from the shocked sample can be enhanced.HA ceramics with high strength used for artificial bone materials can be made with the shock-activating method. |
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| Keywords: | hydroxyapatite shock-activating sintering biomedical ceramics |
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