Effect of calcination on sintering of hydroxyapatite

doi:10.1016/0142-9612(96)88882-X

Biomaterials

Volume 17, Issue 21, November 1996, Pages 2059-2064

https://doi.org/10.1016/0142-9612(96)88882-X Get rights and content

Abstract

Four different temperatures (700–1000 °C) were chosen for calcination treatment of as-received hydroxyapatite powder before press forming and sintering to study the effect of calcination on the sintering behaviours. The results show that calcination treatment increases the average particle size and distribution, which changes from trimodal to monomodal. The sintering behaviours were investigated by dilatometry and density measurement. Fluidity of powder and driving force for sintering were found to dominate the properties. Calcining at 900 °C and sintering 1250 °C results in a higher bending strength (about 55MPa) with finer grain size.

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Citation Excerpt :
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PaperEffect of calcination on sintering of hydroxyapatite

Abstract

Sensors and Actuators

Biomaterials

Hydroxyapatite synthesis and characterization in dense polycrystalline form

J Mater Sci

Medical applications of calcium phosphate bioceramics

J Ceram Soc Jpn

Preparation and thermal properties of dense polycrystalline oxyhydroxyapatite

J Am Ceram Soc

Mechanical properties of sintered hydroxyapatite for prosthetic applications

J Mater Sci

Paper
Effect of calcination on sintering of hydroxyapatite