ZrO2与HA复合粉体的烧结行为
Sintering Behavior of Zirconia-hydroxyapatite Composite Powder
摘 要
将Ca3(PO4)2和Ca(OH)2粉以不同的比例混合后,加入不同量的ZrO2粉,制成料浆后球磨,然后压制,经预烧结合成HA,再在不同温度烧结来合成ZrO2/HA复合材料;用X射线衍射仪进行了物相分析.结果表明:原料粉在1 000 ℃预烧结10 h后,ZrO2/HA复合粉体中出现了β-Ca3(PO4)2和t-ZrO2相;复合粉体在1 050～1 350 ℃烧结4 h后,当ZrO2加入量低(<10%)时,在相对高的温度下(>1 200 ℃),复合材料中只有CaZrO3相存在;当ZrO2加入量高(30%)时,在各个温度段t-ZrO2相随着CaZrO3相的减少而增加;在1 050～1 200 ℃范围内,HA的分解加快,t-ZrO2的稳定性增强,但在1 200～1 300 ℃,HA的分解停滞;不同相的出现导致没有得到理想的ZrO2/HA复合材料,并使得复合材料的密度远小于纯HA的.
二氧化锆
复合材料
烧结
hydroxyapatite
zirconia
composite
sintering
Abstract
The mixed-powder of Ca3(PO4)2 and Ca(OH)2 in different proportions with different ZrO2 powder contents was made into slurry.The hydroxyapatite(HA) was obtained after the pressed milled slurry was pre-sintered.ZrO2/HA composite powders were synthesized at different sintering temperatures,which phaseds were analyzed by using XRD.The results show that β-Ca3(PO4)2 and t-ZrO2 phases were formed in the ZrO2/HA composite powder after sintering the raw material powders at 1 000 ℃ for 4 h.After sintering at 1 050-1 350 ℃ for 4 h,the composite with lower ZrO2 content (<10%) sintered at relative high temperature (>1 200 ℃),CaZrO3 phase was found.And the composite with higher ZrO2 content (>30%),t-ZrO2 phase amount increased as CaZrO3 phase amount decreased at each temperature period.In 1 050-1 200 ℃,HA decomposed faster and t-ZrO2 stability was improved.In 1 200-1 300 ℃,HA stopped decomposing.No ideal ZrO2/HA composite was obtained ,which was caused of various phases forming that leading to a overall reduced density as compared to that of pure HA.
中图分类号 TF124
所属栏目 试验研究
基金项目
收稿日期 2008/12/25
修改稿日期 2009/8/25
网络出版日期
作者单位点击查看
备注王莉丽(1974-),女,陕西咸阳人,讲师,硕士.
引用该论文: WANG Li-li,WANG Xiu-feng,YU Cheng-long,JIANG Hong-tao. Sintering Behavior of Zirconia-hydroxyapatite Composite Powder[J]. Materials for mechancial engineering, 2009, 33(11): 8～10
王莉丽,王秀峰,于成龙,江红涛. ZrO2与HA复合粉体的烧结行为[J]. 机械工程材料, 2009, 33(11): 8～10
被引情况:
【1】熊峰,彭如恕, "预烧结温度对多孔氧化锆陶瓷孔隙率和力学性能的影响",机械工程材料 40, 23-26(2016)
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参考文献
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