氧化铝对热压黑色二氧化钛陶瓷力学性能的影响

IF 5.8 2区 材料科学 Q1 MATERIALS SCIENCE, CERAMICS
Xinwei Geng , Yongfeng Xia , Ming Zhu , Jun Zhao , Dongxu Yao , Yu-Ping Zeng
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引用次数: 0

摘要

二氧化钛(TiO2)陶瓷以其优异的功能而闻名,但由于其相对较弱的机械性能,其应用受到限制。在本研究中,通过添加氧化铝(Al2O3)添加剂和热压法制备了具有优异机械性能的黑色TiO2陶瓷。黑色TiO2陶瓷具有优异的抗弯强度,接近400 MPa,这是迄今为止我们所知道的同类材料的最高值。从材料微观结构的角度探讨了Al2O3对黑色TiO2陶瓷力学性能的影响。在晶界处观察到Al-Ti-O纳米层,它与Al2O3颗粒一起有助于晶界的强化和晶粒的细化。该研究不仅开发了具有良好力学性能的黑色TiO2陶瓷,而且扩大了我们对TiO2- al2o3材料体系的认识。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The effect of aluminum oxide on the mechanical properties of hot-pressing black titanium dioxide ceramics
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.
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来源期刊
Journal of The European Ceramic Society
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.
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