In vitro stability of HA coatings prepared by a duplex process

Haibo Chen; Yong Han; Kewei Xu

In vitro stability of HA coatings prepared by a duplex process

Haibo Chen
, Yong Han
, Kewei Xu

School of Materials Science and Engineering

Xi'an Jiaotong University

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

HA coatings on Ti-6Al-4V substrate were prepared using a duplex process: plasma spraying and hydrothermal synthesis. The microstructure, phase composition, and bond strength of the coatings before and after immersed in physiological saline were investigated and compared with plasma-sprayed HA coatings. The results indicate that the as-sprayed CaHPO₄ coatings consists of β-Ca₂P₂O₇ and α-Ca₃(PO₄)₂, and can be entirely converted to HA coatings with high purity and crystallinity. The degradation of the solubility and bond strength of the hydrothermal synthesized coatings are much lower than those of plasma-sprayed HA coatings when immersed in physiological saline for a period of time. It implies that the duplex prepared HA coatings may have a good structural and mechanical stability in vitro.

Original language	English
Pages (from-to)	754-757
Number of pages	4
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	34
Issue number	5
State	Published - May 2005

Keywords

Bond strength
Hydrothermal synthesis
Hydroxyapatite
Plasma spraying
Stability

Cite this

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title = "In vitro stability of HA coatings prepared by a duplex process",

abstract = "HA coatings on Ti-6Al-4V substrate were prepared using a duplex process: plasma spraying and hydrothermal synthesis. The microstructure, phase composition, and bond strength of the coatings before and after immersed in physiological saline were investigated and compared with plasma-sprayed HA coatings. The results indicate that the as-sprayed CaHPO4 coatings consists of β-Ca2P2O7 and α-Ca3(PO4)2, and can be entirely converted to HA coatings with high purity and crystallinity. The degradation of the solubility and bond strength of the hydrothermal synthesized coatings are much lower than those of plasma-sprayed HA coatings when immersed in physiological saline for a period of time. It implies that the duplex prepared HA coatings may have a good structural and mechanical stability in vitro.",

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author = "Haibo Chen and Yong Han and Kewei Xu",

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T1 - In vitro stability of HA coatings prepared by a duplex process

AU - Chen, Haibo

AU - Han, Yong

AU - Xu, Kewei

PY - 2005/5

Y1 - 2005/5

N2 - HA coatings on Ti-6Al-4V substrate were prepared using a duplex process: plasma spraying and hydrothermal synthesis. The microstructure, phase composition, and bond strength of the coatings before and after immersed in physiological saline were investigated and compared with plasma-sprayed HA coatings. The results indicate that the as-sprayed CaHPO4 coatings consists of β-Ca2P2O7 and α-Ca3(PO4)2, and can be entirely converted to HA coatings with high purity and crystallinity. The degradation of the solubility and bond strength of the hydrothermal synthesized coatings are much lower than those of plasma-sprayed HA coatings when immersed in physiological saline for a period of time. It implies that the duplex prepared HA coatings may have a good structural and mechanical stability in vitro.

AB - HA coatings on Ti-6Al-4V substrate were prepared using a duplex process: plasma spraying and hydrothermal synthesis. The microstructure, phase composition, and bond strength of the coatings before and after immersed in physiological saline were investigated and compared with plasma-sprayed HA coatings. The results indicate that the as-sprayed CaHPO4 coatings consists of β-Ca2P2O7 and α-Ca3(PO4)2, and can be entirely converted to HA coatings with high purity and crystallinity. The degradation of the solubility and bond strength of the hydrothermal synthesized coatings are much lower than those of plasma-sprayed HA coatings when immersed in physiological saline for a period of time. It implies that the duplex prepared HA coatings may have a good structural and mechanical stability in vitro.

KW - Bond strength

KW - Hydrothermal synthesis

KW - Hydroxyapatite

KW - Plasma spraying

KW - Stability

UR - https://www.scopus.com/pages/publications/20444391766

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AN - SCOPUS:20444391766

SN - 1002-185X

VL - 34

SP - 754

EP - 757

JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 5

ER -

In vitro stability of HA coatings prepared by a duplex process

Abstract

Keywords

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