新型钇-羟基磷灰石骨水泥的制备及性能研究<sup>*</sup>

doi:10.11896/j.issn.1005-023X.2017.013.020

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Abstract The tetracalcium phosphate (TTCP) doped with yttrium was prepared by high temperature solid state method. Then the TTCP doped with yttrium was mixed with dicalcium phosphate anhydrous (DCPA) at a molar ratio of 1∶1 to form ytt-rium-hydroxyapatite cement (Y-HAC). The results showed that the reaction product of Y-HAC is poorly crystalline hydroxyapatite, indicating that the addition of small amount of yttrium has not changed the hydration reaction of hydroxyapatite cement (HAC). The wet compressive strength of Y-HAC increased 120% and dry compressive strength increased 85%, compared with that of HAC. The porosity of specimens has been augmented with the doping of yttrium. There exists some changes in crystallization morphology of Y-HAC, emerging many closely combined flaked crystals and construct a three-dimensional network structure. The in-vitro release experiment indicated that Y-HACs have very low release of yttrium. The Y-HAC might be a potential material for bone substitute, drug-loaded and bone tissue engineering.

Key words： yttrium hydroxyapatite cement compressive strength bone repair

Published: 04 May 2018

CLC number:

R318.08

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	Articles by authors
	QI Xiaopeng
	LI Wen
	LUO Yuanfang
	YANG Hui

Cite this article:

QI Xiaopeng,LI Wen,LUO Yuanfang, et al. Preparation and Properties of a Novel Yttrium-hydroxyapatite Cement[J]. Materials Reports, 2017, 31(13): 151-155.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2017.013.020 OR http://www.mater-rep.com/EN/Y2017/V31/I13/151

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