INFLUENCE OF CARBONATE ON SINTERING OF APATITES
INFLUENCE OF CARBONATE ON SINTERING OF APATITES
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DOI：
10.1177/00220345930720090401
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发表时间：
1993-09-01
影响因子：
7.6
通讯作者：
SUWA, Y
中科院分区：
文献类型：
--
作者：
DOI, Y;KODA, T;SUWA, Y
通过热分析、X 射线衍射和红外光谱研究了在 100 摄氏度和 pH 9.0 下制备的碳酸盐磷灰石的烧结 3 天。等静压样品的线性热收缩急剧增加的烧结温度，与磷灰石中最初存在的碳酸盐的量成比例地降低。例如，碳酸盐含量超过 8 wt% 的样品可以在比烧结不含碳酸盐的样品所需温度低近 400 摄氏度的温度 (650 摄氏度) 下烧结。通过化学方法和红外光谱法估算的烧结结束时碳酸盐损失量大约等于热重分析法估算的样品重量损失。
Sintering of carbonate apatite, prepared at 100-degrees-C and pH 9.0 for 3 days, was studied by thermal analysis, x-ray diffraction, and infrared spectroscopy. The sintering temperature, at which the linear thermal shrinkage of isostatically compacted specimens increased sharply, decreased in proportion to the amount of carbonate initially present in the apatite. For example, specimens with over 8 wt% carbonate could be sintered at a temperature (650-degrees-C) which was nearly 400-degrees-C lower than that needed for sintering a specimen with no carbonate. Amounts of carbonate lost at the end of sintering, estimated chemically and by infra-red specroscopy, were approximately equal to sample weight losses estimated thermogravimetrically.