Sage Journals: Discover world-class research

Abstract

In the present study, β tricalcium phosphate (β-TCP) was prepared by precipitation from aqueous solutions. Calcium nitrate tetrahydrate Ca(NO₃)₂.4H₂O and diammonium hydrogen phosphate (NH₄)₂HPO₄ salts with an initial Ca/P molar ratio of 1·5 were dissolved in distilled water and mixed at 20°C and pH 10. Phase evolution of the as received precipitate was studied by X-ray diffraction and infrared spectroscopy before and after calcination in a dry air atmosphere at temperatures in the range 200-1400°C for 1 h. Thermal behaviour was investigated by simultaneous thermal analysis (DTA-TG). Calcium and phosphorus contents of the as received precipitate were determined by the inductively coupled plasma technique, and a Ca/P molar ratio of 1·49 ± 0·01 was found. The densities of the as received precipitate and of powder calcined at 800°C were determined by picnometery to be 2·43 and 3·01 ± 0·05 g cm^-3 respectively. The experimental data suggest the formation of an amorphous phase corresponding to a TCP-like composition, which is calcium deficient and contains a very small amount of HPO₄^2- groups.

Get full access to this article

View all access options for this article.

References

LEVITT

G. E.

et al.: J. Biomed. Mater. Res., 1969, 3, 683–685.

DE GROOT

: Ceram. Int., 1993, 19, 363–366.

WILLIAMS

D. F.

: in Tiocompatibility of tissue analogs’, Vol. II, (ed. Williams

D. F.

), 43–60; 1985, Boca Raton, FL, CRC Press.

FARMERY

et al.: Ceram. Int., 1994, 20, 327–336.

F.-H.

et al.: Biomaterials, 1998, 19, 1101–1107.

CAROFF

et al.: Biomaterials, 1998, 19, 1451–1454.

MONTEL

et al.: J. Cryst. Growth, 1981, 53, 74–99.

BLUEMENTHAL

N. B.

and PONSER

A. S.

: Calcif. Tiss. Res., 1973, 13, 235–243.

YOUNG

R. A.

and HOLCOMB

D. W.

: Calcif. Tiss. Res., 1982, 34, 327–332.

10.

PONSER

A. S.

etal.: Prog. Cryst. Growth Charact., 1980, 3, 49–64.

11.

DE GROOT

: Biomaterials, 1980, 9, 47–50.

12.

BAKO

et al.: Ceram. Int., 1992, 18, 373–378.

13.

JARCO

et al.: J. Mater. Sci., 1979, 14, 142–150.

14.

AKAO

et al.: J. Mater. Sci., 1982, 17, 343–346.

15.

SLOSARCZKY

: J. Am. Ceram. Soc., 1996, 79, 2539–2544.

16.

NARASARAJU

T. S. B.

et al.: J. Mater. Sci., 1996, 31, 1–20.

17.

TAş

A. C.

et al.: J. Mater. Sci.: Mater. Med., 1997, 8, 91–96.

18.

KIVRAK

and TAş

A. C.

: J. Am. Ceram. Soc., 1998, 81, 2245–2252.

19.

HATA

et al.: J. Am. Ceram. Soc., 1995, 78, 1049–1053.

20.

SMICIKLAS

I. D.

et al.: J. Mater. Sci., 2000, 35, 2825–2828.

21.

ISHIKAWA

et al.: J. Mater. Sci.: Mater. Med., 1993, 4, 165–168.

22.

YUBAO

et al.: J. Mater. Sci.: Mater. Med., 1994, 5, 252–255.

23.

YUBAO

et al.: J. Mater. Sci.: Mater. Med., 1994, 5, 326–331.

24.

CHANGSHENG

et al.: Biomaterials, 2001, 22, 301–306.

25.

JARCO

et al.: J. Mater. Sci., 1976, 11, 2027–2035.

26.

OSAKA

et al.: J. Mater. Sci.: Mater. Med., 1991, 2, 51–55.

27.

YUBAO

et al.: J. Mater. Sci.: Mater. Med., 1994, 5, 263–268.

28.

PRIETO VALUES

J. J.

et al.: J. Mater. Sci.: Mater. Med., 1997, 8, 297–301.

29.

RAYNAUD

et al.: Biomaterials, 2002, 23,1065–1072.

Synthesis and thermal behaviour of β tricalcium phosphate precipitated from aqueous solutions

Abstract

Get full access to this article

References