Characterization of calcium phosphate apatite with variable Ca/P ratios sintered at low temperature

Moo Chin Wang; Wei Jen Shih; I. Ming Hung; Hui Ting Chen; Min Hsiung Hon; Hong Hsin Huang

doi:10.1016/j.ceramint.2014.09.051

Characterization of calcium phosphate apatite with variable Ca/P ratios sintered at low temperature

Moo Chin Wang, Wei Jen Shih, I. Ming Hung, Hui Ting Chen^*, Min Hsiung Hon, Hong Hsin Huang

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摘要

The characterization of calcium phosphate apatite with variable Ca/P ratios synthesized by the hydrolysis method and sintered at 1073 K has been investigated. When the precipitate powders are sintered at 1073 K for 4 h, the major phase observed is hydroxyapatite (Ca₁₀(PO₄)₆(OH)₂, HA), and the minor phases are rhenanite (NaCaPO₄) and β-tricalcium phosphate (β-TCP, β-Ca₃(PO₄)). The shrinkage increased from 5.15 to 21.00%, and the grain size of the pellets also increased from 31 to 348 nm along with the ratios of Ca/P. The TEM microstructure identified with SAED and EDS analyses show that an amorphous phase of NaCaPO₄ is present at the grain boundaries of HA, which promotes the sintering of calcium phosphate, but reduces the mechanical properties.

原文	English
頁（從 - 到）	1223-1233
頁數	11
期刊	Ceramics International
卷	41
發行號	1
DOIs	https://doi.org/10.1016/j.ceramint.2014.09.051
出版狀態	Published - 2015

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title = "Characterization of calcium phosphate apatite with variable Ca/P ratios sintered at low temperature",

abstract = "The characterization of calcium phosphate apatite with variable Ca/P ratios synthesized by the hydrolysis method and sintered at 1073 K has been investigated. When the precipitate powders are sintered at 1073 K for 4 h, the major phase observed is hydroxyapatite (Ca10(PO4)6(OH)2, HA), and the minor phases are rhenanite (NaCaPO4) and β-tricalcium phosphate (β-TCP, β-Ca3(PO4)). The shrinkage increased from 5.15 to 21.00%, and the grain size of the pellets also increased from 31 to 348 nm along with the ratios of Ca/P. The TEM microstructure identified with SAED and EDS analyses show that an amorphous phase of NaCaPO4 is present at the grain boundaries of HA, which promotes the sintering of calcium phosphate, but reduces the mechanical properties.",

keywords = "A. Sintering, B. Grain size, Calcium phosphate, D. Apatite",

author = "Wang, {Moo Chin} and Shih, {Wei Jen} and Hung, {I. Ming} and Chen, {Hui Ting} and Hon, {Min Hsiung} and Huang, {Hong Hsin}",

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TY - JOUR

T1 - Characterization of calcium phosphate apatite with variable Ca/P ratios sintered at low temperature

AU - Wang, Moo Chin

AU - Shih, Wei Jen

AU - Hung, I. Ming

AU - Chen, Hui Ting

AU - Hon, Min Hsiung

AU - Huang, Hong Hsin

PY - 2015

Y1 - 2015

N2 - The characterization of calcium phosphate apatite with variable Ca/P ratios synthesized by the hydrolysis method and sintered at 1073 K has been investigated. When the precipitate powders are sintered at 1073 K for 4 h, the major phase observed is hydroxyapatite (Ca10(PO4)6(OH)2, HA), and the minor phases are rhenanite (NaCaPO4) and β-tricalcium phosphate (β-TCP, β-Ca3(PO4)). The shrinkage increased from 5.15 to 21.00%, and the grain size of the pellets also increased from 31 to 348 nm along with the ratios of Ca/P. The TEM microstructure identified with SAED and EDS analyses show that an amorphous phase of NaCaPO4 is present at the grain boundaries of HA, which promotes the sintering of calcium phosphate, but reduces the mechanical properties.

AB - The characterization of calcium phosphate apatite with variable Ca/P ratios synthesized by the hydrolysis method and sintered at 1073 K has been investigated. When the precipitate powders are sintered at 1073 K for 4 h, the major phase observed is hydroxyapatite (Ca10(PO4)6(OH)2, HA), and the minor phases are rhenanite (NaCaPO4) and β-tricalcium phosphate (β-TCP, β-Ca3(PO4)). The shrinkage increased from 5.15 to 21.00%, and the grain size of the pellets also increased from 31 to 348 nm along with the ratios of Ca/P. The TEM microstructure identified with SAED and EDS analyses show that an amorphous phase of NaCaPO4 is present at the grain boundaries of HA, which promotes the sintering of calcium phosphate, but reduces the mechanical properties.

KW - A. Sintering

KW - B. Grain size

KW - Calcium phosphate

KW - D. Apatite

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U2 - 10.1016/j.ceramint.2014.09.051

DO - 10.1016/j.ceramint.2014.09.051

M3 - Article

AN - SCOPUS:84923081565

SN - 0272-8842

VL - 41

SP - 1223

EP - 1233

JO - Ceramics International

JF - Ceramics International

IS - 1

ER -

Characterization of calcium phosphate apatite with variable Ca/P ratios sintered at low temperature

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