Preparation and structure refinement of monoclinic hydroxyapatite
Preparation and structure refinement of monoclinic hydroxyapatite
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DOI：
10.1006/jssc.1998.8120
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发表时间：
1999-05-01
影响因子：
3.3
通讯作者：
Akao, M
中科院分区：
文献类型：
--
作者：
Ikoma, T;Yamazaki, A;Akao, M
采用湿法合成了单斜晶型羟基磷灰石，产物不含碳酸盐，Ca/P比为1.65，略低于羟基磷灰石的理论值（1.67）。用Rietveld精修法研究了晶体结构。该结构具有单斜对称性，空间群为P2（1）/B（No，14），Z = 4，Dx = 3.14 g cm（-3），晶格常数为a = 9.426（3）埃，B = 18.856（5）埃，c = 6，887（1）埃，γ = 119.97（1）度。氢氧根离子沿羟基柱沿着有序排列。在本研究中制备的羟基磷灰石是98%的单斜晶系。(C)北京：科学出版社.
Monoclinic hydroxyapatite was synthesized by a wet method followed by heating in air at 1473 K for 1 h, The product is carbonate-free and has a Ca/P ratio of 1.65, which is slightly lower than the theoretical value (1.67) of hydroxyapatite. The crystal structure mas investigated by Rietveld refinement using X-ray powder diffraction data. The structure has monoclinic symmetry with the space group P2(1)/b (No, 14), Z = 4, Dx = 3.14 g cm(-3), and the lattice constants are a = 9.426(3) Angstrom, b = 18.856(5) Angstrom, c = 6,887(1) Angstrom, and gamma = 119.97(1)degrees. The hydroxyl ions have an ordered arrangement along the hydroxyl columns. The hydroxyapatite prepared in the present study is 98% monoclinic. (C) 1999 Academic Press.