Tribology and in-vitro biological characterization of TiO2 addition on ceria stabilized zirconia-toughened alumina (CSZTA) composite

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

Journal of Asian Ceramic Societies Pub Date : 2023-06-21 DOI:10.1080/21870764.2023.2225262

Obulapathi Eggidi, A. K. Pandey

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引用次数: 0

Abstract

ABSTRACT The effect of TiO2 addition on tribology and in-vitro biological characteristics of ceria-stabilized zirconia-toughened alumina (CSZTA-TiO2) ceramic composites were examined and presented in this study. Through the powder metallurgy route, the TiO2 added to CSZTA samples were synthesized and sintered (air environment). Additionally, the pin on the disc machine was used to examine the wear characteristics of sintered samples. Adding TiO2 to CSZTA enhances the tribological properties compared to pure ceria-stabilized zirconia-toughened alumina (CSZTA). In addition, the samples (CSZTA and CSZTA-TiO2) were subjected to aging. There is no monoclinic-phase transformation (no degradation) in the CSZTA-TiO2 sample after 100 h of testing, confirming its great resistance to LTD. The bioactivity of developed CSZTA and CSZTA-TiO2 samples was studied using simulated body fluid (SBF). After chemical treatment, it was shown that the composite would create an apatite layer that resembled bone when soaked in a simulated body fluid with ion concentrations equal to human blood plasma. These results suggest that it may generate apatite within a live organism and connect to the bone via the apatite layer.

查看原文本刊更多论文

二氧化钛在铈稳定氧化锆-增韧氧化铝(CSZTA)复合材料上的摩擦学及体外生物学表征

本文研究了TiO2添加量对氧化锆-增韧氧化铝(CSZTA-TiO2)陶瓷复合材料摩擦学和体外生物学特性的影响。通过粉末冶金的方法，将TiO2添加到CSZTA样品中进行合成和烧结(空气环境)。此外，利用盘式机床上的销对烧结试样的磨损特性进行了检测。与纯氧化铈稳定的氧化锆增韧氧化铝(CSZTA)相比，在CSZTA中加入TiO2可以提高其摩擦学性能。此外，对样品(CSZTA和CSZTA- tio2)进行了时效处理。经过100 h的测试，CSZTA-TiO2样品无单斜相变(无降解)，证实了其具有很强的耐LTD。利用模拟体液(SBF)研究了制备的CSZTA和CSZTA- tio2样品的生物活性。经过化学处理后，研究表明，将这种复合材料浸泡在离子浓度相当于人体血浆的模拟体液中，会产生一层类似骨头的磷灰石层。这些结果表明，它可能在活的生物体中产生磷灰石，并通过磷灰石层与骨连接。

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.