The effect of aluminum oxide on the mechanical properties of hot-pressing black titanium dioxide ceramics

IF 5.8 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of The European Ceramic Society Pub Date : 2025-03-21 DOI:10.1016/j.jeurceramsoc.2025.117385

Xinwei Geng , Yongfeng Xia , Ming Zhu , Jun Zhao , Dongxu Yao , Yu-Ping Zeng

{"title":"The effect of aluminum oxide on the mechanical properties of hot-pressing black titanium dioxide ceramics","authors":"Xinwei Geng , Yongfeng Xia , Ming Zhu , Jun Zhao , Dongxu Yao , Yu-Ping Zeng","doi":"10.1016/j.jeurceramsoc.2025.117385","DOIUrl":null,"url":null,"abstract":"<div><div>Titanium dioxide (TiO2) ceramics, known for their excellent functionality, have been limited in applications due to their relatively weak mechanical properties. In this work, black TiO2 ceramics with superior mechanical properties are achieved through the incorporation of aluminum oxide (Al2O3) additives and hot-pressing method. The black TiO2 ceramic exhibited a remarkable flexural strength of near 400 MPa, which is the highest value known to us to date for similar materials. The influence of Al2O3 on the mechanical properties of black TiO2 ceramics was discussed from the perspective of material microstructures. The Al-Ti-O nanolayer was observed at the grain boundaries, contributing to both the reinforcement of grain boundaries and the refinement of grains along with Al2O3 particles. This study not only developed black TiO2 ceramics with great mechanical properties but also expanded our understanding of the TiO2-Al2O3 material system.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 11","pages":"Article 117385"},"PeriodicalIF":5.8000,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of The European Ceramic Society","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0955221925002055","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}

引用次数: 0

Abstract

Titanium dioxide (TiO₂) ceramics, known for their excellent functionality, have been limited in applications due to their relatively weak mechanical properties. In this work, black TiO₂ ceramics with superior mechanical properties are achieved through the incorporation of aluminum oxide (Al₂O₃) additives and hot-pressing method. The black TiO₂ ceramic exhibited a remarkable flexural strength of near 400 MPa, which is the highest value known to us to date for similar materials. The influence of Al₂O₃ on the mechanical properties of black TiO₂ ceramics was discussed from the perspective of material microstructures. The Al-Ti-O nanolayer was observed at the grain boundaries, contributing to both the reinforcement of grain boundaries and the refinement of grains along with Al₂O₃ particles. This study not only developed black TiO₂ ceramics with great mechanical properties but also expanded our understanding of the TiO₂-Al₂O₃ material system.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of The European Ceramic Society 工程技术-材料科学：硅酸盐

CiteScore

10.70

自引率

12.30%

发文量

863

审稿时长

35 days

期刊介绍： The Journal of the European Ceramic Society publishes the results of original research and reviews relating to ceramic materials. Papers of either an experimental or theoretical character will be welcomed on a fully international basis. The emphasis is on novel generic science concerning the relationships between processing, microstructure and properties of polycrystalline ceramics consolidated at high temperature. Papers may relate to any of the conventional categories of ceramic: structural, functional, traditional or composite. The central objective is to sustain a high standard of research quality by means of appropriate reviewing procedures.