Microhardness and microstructural properties of a mixture of hydroxyapatite and β-tricalcium phosphate

IF 2.2 4区材料科学 Q2 MATERIALS SCIENCE, CERAMICS

Journal of Asian Ceramic Societies Pub Date : 2022-10-20 DOI:10.1080/21870764.2022.2136261

Se Woong Lee, Yurian Kim, Hyung Tay Rho, Sang‐il Kim

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引用次数: 3

Abstract

ABSTRACT Calcium phosphate ceramics have been studied as promising materials for biomaterial applications owing to their excellent biocompatibility and osteoconductivity. Herein, we investigated the influence of different mass ratios of hydroxyapatite (HA) and β-tricalcium phosphate (β-TCP) in a calcium phosphate mixture (CPM) on the microhardness and microstructural properties of a series of xHA-(100-x)β-TCP (x = 0, 30, 50, 70, 90, and 100) mixture samples. The chemical compositions and structural properties of the CPM samples were characterized using X-ray diffraction, Fourier-transform infrared spectroscopy, field emission scanning electron microscopy, and energy-dispersive X-ray spectroscopy. The porosity of the HA/β-TCP composites decreased with increasing β-TCP content and reached a minimum porosity when the mass ratio of HA/β-TCP is 70/30, and then increased with increasing β-TCP content again. The surface microhardness of the CPM composites was measured and found to be inversely proportional to their porosities. Therefore, the CPM of HA/β-TCP with a mass ratio of 70/30 exhibited a maximum surface microhardness of 86.02 MPa.

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羟基磷灰石和β-磷酸三钙混合物的显微硬度和显微结构特性

摘要磷酸钙陶瓷具有良好的生物相容性和骨传导性，是一种很有前途的生物材料。本文研究了磷酸钙混合物（CPM）中羟基磷灰石（HA）和β-磷酸三钙（β-TCP）的不同质量比对一系列xHA-（100-x）β-TCP（x=0、30、50、70、90和100）混合物样品显微硬度和微观结构性能的影响。利用X射线衍射、傅立叶变换红外光谱、场发射扫描电子显微镜和能量色散X射线光谱对CPM样品的化学成分和结构性能进行了表征。HA/β-TCP复合材料的孔隙率随着β-TCP含量的增加而降低，当HA/β/TCP的质量比为70/30时达到最小孔隙率，然后随着β-TTCP含量的增加再次增加。测量了CPM复合材料的表面显微硬度，发现其与孔隙率成反比。因此，质量比为70/30的HA/β-TCP的CPM表现出86.02MPa的最大表面显微硬度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Asian Ceramic Societies Materials Science-Ceramics and Composites

CiteScore

5.00

自引率

4.30%

发文量

审稿时长

10 weeks

期刊介绍： The Journal of Asian Ceramic Societies is an open access journal publishing papers documenting original research and reviews covering all aspects of science and technology of Ceramics, Glasses, Composites, and related materials. These papers include experimental and theoretical aspects emphasizing basic science, processing, microstructure, characteristics, and functionality of ceramic materials. The journal publishes high quality full papers, letters for rapid publication, and in-depth review articles. All papers are subjected to a fair peer-review process.