Biomimetic Coating on Zirconia Composites Induced by Chemical Treatment

Author:

Ortega-Chavarría S.1,Cortés-Hernández Dora A.2,Nogiwa-Valdez Akemi A.3

Affiliation:

1. Centro de Investigación y de Estudios Avanzados del IPN

2. Unidad Saltillo-CINVESTAV

3. University of Sheffield

Abstract

The effect of the chemical treatment of zirconia/alumina composites followed by a biomimetic treatment has been studied. The composites are prepared from a powder mixture of Mg- PSZ and Al2O3. The powders are ball-milled in acetone and uniaxially pressed after drying. The specimens are sintered at 1550 °C in air. After sintering, chemical treatment is performed by immersing the samples in a 5M aqueous solution of phosphoric acid at 95 °C for 4 days. The biomimetic method consists of immersing the chemically-treated samples in simulated body fluid at 36.5 °C. In some cases a wollastonite bed is used as a supplier of calcium ions, resulting in the formation of a bonelike apatite layer. The presence of this bioactive system during the biomimetic process has a positive significant effect on the bioactivation of the composites for either short or long times of immersion of the composites in simulated body fluids. The chemical treatment increases also the rate of apatite formation at short immersion periods.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3