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- Title
Effect of Co-Precipitation on the Low-Temperature Sintering of Biphasic Calcium Phosphate.
- Authors
Youn-Ki Jun; Seong-Hyeon Hong; Young-Min Kong
- Abstract
Three types of biphasic calcium phosphate (BCP) powders were prepared and their sintering behavior was investigated. The specific surface area and HA/TCP ratio were similar in all three specimens. Most of the densification in the co-precipitated s-BCP occurred before the β- to α-TCP phase transformation, and a maximum density of ∼95% was obtained at 1100°C. The mixture of separately precipitated and calcined hydroxyapatite (HA) and tricalcium phosphate (TCP) (m-BCP) showed a poor sintering behavior, and the apparent density was below 70% at temperatures up to 1200°C. In the commercial HA and TCP mixture (c-BCP), the low temperature sintering was poor, but densification continued without the phase transformation due to the presence of MgO, achieving almost full densification at 1200°C.
- Subjects
CALCIUM phosphate; SINTERING; PHASE transitions; HYDROXYAPATITE; LOW temperatures
- Publication
Journal of the American Ceramic Society, 2006, Vol 89, Issue 7, p2295
- ISSN
0002-7820
- Publication type
Article
- DOI
10.1111/j.1551-2916.2006.00977.x