Effect of carbonate contents on crystal structure of A-type carbonate apatites

被引：11

作者：

Ikoma, T

Kubo, Y

Yamazaki, A

Akao, M

Tanaka, J

机构：

[1] Natl Inst Res Inorgan Mat, Tsukuba, Ibaraki 3050044, Japan

[2] Technol Agcy, Tsukuba, Ibaraki 3050044, Japan

[3] Waseda Univ, Sch Sci & Engn, Shinjyuku Ku, Tokyo 1698555, Japan

[4] Tokyo Med & Dent Univ, Inst Biomat & Bioengn, Chiyoda Ku, Tokyo 1010062, Japan

来源：

BIOCERAMICS | 2000年 / 192-1卷

关键词：

A-type carbonate apatite; crystal structure; Rietveld method;

D O I：

10.4028/www.scientific.net/KEM.192-195.191

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A-type carbonate apatites with different CO3 contents were obtained by heating hydroxyapatite powder in dry carbon dioxide atmosphere at 1173 K for 1 to 64 hours. The replacement of CO3 ions lowered the crystal symmetry to hexagonal (P6(3)lm) --> hexagonal --> (P-6) --> monoclinic (Pb) in that order. The a-axis parameters were linearly increased with the increase of CO3 ions, while the b- and c-axis parameters were varied little. The lattice parameters of the A-type carbonate apatite completely replaced by CO3 ions were refined to be a = 0.9572(1), b = 1.9084(1) and c = 0.6877(1). The splitting of IR absorption bands attributed to a PO4 ion also supported the lowering of crystal symmetries.

引用

页码：191 / 194

页数：4

共 7 条

[1]

BONEL G, 1972, ANN CHIM FRANCE, V7, P65

[2]

ELLIOTT JC, 1994, STRUCTURE CHEM APATI, pCH4

[3]

ITO A, 1988, THESIS WASEDA U

[4]

IZUMI F, 1993, RIETVELD METHOD, pCH13

[5]

LEGEROS RZ, 1991, CALCIUM PHOSPHATE OR

[6] A RESOLUTION-ENHANCED FOURIER-TRANSFORM INFRARED SPECTROSCOPIC STUDY OF THE ENVIRONMENT OF THE CO3(2-) ION IN THE MINERAL PHASE OF ENAMEL DURING ITS FORMATION AND MATURATION [J].

REY, C ;

RENUGOPALAKRISHNAN, V ;

SHIMIZU, M ;

COLLINS, B ;

GLIMCHER, MJ .

CALCIFIED TISSUE INTERNATIONAL, 1991, 49 (04) :259-268

[7]

Suetsugu Y, 1998, J AM CERAM SOC, V81, P746, DOI 10.1111/j.1151-2916.1998.tb02403.x

← 1 →