Effect of Calcination on Mechanical Properties of Hydroxyapatite / Zirconia Composite Sintered by Spark Plasma Sintering

Abstract:

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The effect of calcination on the mechanical properties of hydroxyapatite and zirconia composite (HAp:ZrO2= 30:70, 50:50, 70:30 mass%) was investigated. The calcination of ball-milled mixture in air at 900°C for 0, 2 and 4 hours increased the crystallinity. Then, it was assigned that the particles form of hydroxyapatite was changed from needle-like to sphere-like by calcination. The calcined mixture was sintered by spark plasma sintering (SPS) at 1200°C with a pressure of 40MPa for 5 minutes. The calcination process caused the enhancement of flexural strength of the composite.

Info:

Periodical:

Materials Science Forum (Volumes 561-565)

Main Theme:

Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee

Pages:

613-616

DOI:

10.4028/www.scientific.net/MSF.561-565.613

Citation:

B. K. Moon et al., "Effect of Calcination on Mechanical Properties of Hydroxyapatite / Zirconia Composite Sintered by Spark Plasma Sintering", Materials Science Forum, Vols. 561-565, pp. 613-616, 2007

Online since:

October 2007

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Price:

$35.00

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