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Research Article

ScienceAsia 12 (1986): 159-170 |doi: 10.2306/scienceasia1513-1874.1986.12.159

 

PHASES OF CATTLE BONES AT ELEVATED TEMPERATURES

 

CHARUSSRI LORPRAYOON

ABSTRACT: The high temperature phases of cattle bones were studied with a view to the potential use of this material as prosthetic bone. Bone samples from the middle part of cow and buffalo legs were radially cut into pieces and heat-treated to temperatures ranging from 900o to 1400oC. The phases of air-quenched and slow-cooled samples were investigated using an x-ray diffractometer and an infrared spectrophotometer.

 The results indicated that from 900o to 1300 oC. the quenched samples from the middle part of the leg bones were composed entirely of calcium hydroxy-oxy apatite. Ca10(PO4)6(OH)2(l-x)Ox, which dissociated into alpha-tricalcium phosphate. -Ca3(PO4)2 and tetracalcium phosphate. Ca4O(PO4)22 at 1400oC. In the case of slow cooling. the same behaviour was observed but the -Ca3(PO4)2 was transformed to the beta-tricalcium phosphate, -Ca3(PO4)2.

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Department of Materials Science. Faculty of Science. Chulalongkorn University. Bangkok. Thailand.

Received 27 May 1986