等离子喷涂羟基磷灰石涂层的Ti-6Al-4V牙科植入物的微观结构

Microstructures of plasma-sprayed hydroxyapatite-coated Ti-6Al-4V dental implants.

作者信息

Tufekci E, Brantley W A, Mitchell J C, McGlumphy E A

机构信息

Ohio State University, Columbus, USA.

出版信息

Int J Oral Maxillofac Implants. 1997 Jan-Feb;12(1):25-31.

PMID:9048451

Abstract

The purpose of this study was to investigate the microstructure of plasma-sprayed hydroxyapatite coatings and the elemental composition near the coating-substrate interface for two commercial implants, using the scanning electron microscope. Both coating surfaces and cross-sectioned specimens were examined. The results indicated that while the surface microstructures of both implants were consistent with the plasma-spraying process, the scale of the constituents was much finer for one product. In cross-section, both coatings exhibited minimal porosity and intimate contact with the titanium alloy substrate. It was found that limited interdiffusion of titanium and calcium occurred near the interface.

摘要

本研究的目的是使用扫描电子显微镜研究两种商用植入物的等离子喷涂羟基磷灰石涂层的微观结构以及涂层与基体界面附近的元素组成。对涂层表面和横截面试样都进行了检查。结果表明，虽然两种植入物的表面微观结构都与等离子喷涂工艺一致，但其中一种产品的成分尺度要细得多。在横截面上，两种涂层的孔隙率都很低，并且与钛合金基体紧密接触。发现在界面附近钛和钙发生了有限的相互扩散。