Preparation and properties of black Ti-doped zirconia ceramics

被引：28

作者：

Lv, Haodong ^{[1
]}

Bao, Jinxiao ^{[1
]}

Ruan, Fei ^{[1
]}

Zhou, Fen ^{[1
]}

Wang, Qingchun ^{[1
]}

Zhang, Wen ^{[1
]}

Guo, Wenrong ^{[1
]}

Zhang, Yonghe ^{[1
]}

Song, Xiwen ^{[1
]}

An, Shengli ^{[1
]}

机构：

[1] Inner Mongolia Univ Sci & Technol, Sch Met & Mat, Inner Mongolia Key Lab Adv Ceram & Device, Baotou 014010, Peoples R China

来源：

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2020年 / 9卷 / 03期

基金：

中国国家自然科学基金;

关键词：

ZrO2; Ceramics; Optical properties; Defect; YTTRIA-STABILIZED ZIRCONIA; MECHANICAL-PROPERTIES; XPS; COLOR;

D O I：

10.1016/j.jmrt.2020.01.021

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Black zirconia ceramics has many problems, such as uneven color and poor phase stability. The reason for this phenomenon is that the colorant uses a colorant with a complex black spinel structure, and also the application of a dyeing method. To improve the color uniformity and phase stability of black ceramics, TiO2 was introduced to replace the traditional complex black spinel, a high-temperature reduction method (HTR) was employed to prepare a black Ti-doped zirconia ceramic, stead of the conventional dyeing method. After the HTR at 1400 degrees C, the concentration of Ti3+ and oxygen vacancies increased, and the lightness of the ceramic samples decreased from 93.48 to 44.17. The black ceramic is uniform in color and stable in phase, avoiding the disordered phase of the spinel doped multiphase zirconia ceramic. The results indicate that the overall color of the samples depends on the development mechanism of the color center. The formation of color centers (F+ centers) in this work was related to the electronic transition of Ti 3d states and oxygen vacancies generated during the HTR. centers cause a strong light absorbance over the entire visible light range (400-750 nm), so that the color of the ceramics is black. Based on their good color attributes, black ceramics have great potential in industry, for example as the back plate of mobile phones. (C) 2020 The Authors. Published by Elsevier B.V.

引用

页码：6201 / 6208

页数：8

共 27 条

[1] Ce 3d XPS investigation of cerium oxides and mixed cerium oxide (CexTiyOz) [J].