POST-COMPOSITION CONTROL OF HYDROXYAPATITE IN AN AQUEOUS-MEDIUM

被引：11

作者：

HONDA, T

TAKAGI, M

UCHIDA, N

SAITO, K

UEMATSU, K

机构：

[1] Department of Chemistry, Faculty of Engineering, Nagaoka University of Technology, Nagaoka, Niigata, 940-21

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE | 1990年 / 1卷 / 02期

关键词：

D O I：

10.1007/BF00839078

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Composition control of hydroxyapatite by post-treatment in an alkaline solution was examined. Non-stoichiometric material having a Ca/P ratio of 1.60 was treated in distilled water (pH 6.5) and in a concentrated aqueous solution of ammonia (pH 11). The Ca/P ratio of the material increased with the latter treatment and the stoichiometric composition (Ca/P = 1.67) was achieved after six treatments. In contrast, essentially no change in composition was found with the former treatment. The treated powder had high thermal stability of nominally a stoichiometric composition. Composition change by incongruent dissolution is discussed.

引用

页码：114 / 117

页数：4

共 20 条

[1]

Hulbert S.F., Hench L.L., Forbers D., Bowman L.S., Ceram. Int., 8, (1982)

[2]

Akao M., Aoki H., Kato K., Sato A., J. Mater. Sci., 17, (1982)

[3]

Jarcho M., Bolen C.H., Thomas M.B., Bobick J., Kay J.F., Doremus R.H., J. Mater. Sci., 11, (1976)

[4]

Arends J., Christoffersen J., Christoffersen M.R., Eckert H., Fowler B.O., Heughebaert J.C., Nancollas G.H., Yesinowski J.P., Zawacki S.J., J. Cryst. Growth, 84, (1987)

[5]

Kijima T., Tsutsumi T., Preparation and Thermal Properties of Dense Polycrystalline Oxyhydroxyapatite, Journal of the American Ceramic Society, 62, (1979)

[6]

Futagami T., Okamoto T., Yogyo-Kyokai-Shi, 95, (1987)

[7]

Asada M., Oukami K., Nakamura S., Takahashi K., Yogyo-Kyokai-Shi, 95, (1987)

[8]

Uematsu K., Takagi M., Honda T., Uchida N., Saito K., J. Amer. Ceram. Soc., 72, (1989)

[9]

Fowler B.O., Inorg. Chem, 13, (1974)

[10]

Levinskas G.L., Newman W.F., J. Phys. Chem., 59, (1955)

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