ZrO2 Matrix Toughened Ceramic Material‐Strength and Toughness. Issue 6 (27th January 2022)

• Record Type: Journal Article
• Authors: Qi, Bin; Liang, Shuaishuai; Li, Yongjian; Zhou, Chenchen; Yu, Haibo; Li, Jiang
• Is Part Of: Advanced engineering materials. Volume 24:Issue 6(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-01-27
• Subjects: fracture toughness -- mechanical performances -- strength -- toughening mechanisms -- ZrO2 ceramic; Materials -- Periodicals; 620.11
• DOI: 10.1002/adem.202101278
• Languages: English
• ISSNs: 1438-1656

Abstract

Abstract : ZrO2 ceramic exhibits the characteristics of high hardness, good thermochemical stability, desirable biocompatibility, and unique stress‐activated tetragonal to monoclinic transformation toughening, thus having broad development prospects. However, as a typical ceramic material, it has the common shortcoming of brittleness and seriously limits the possible applications. In recent years, worldwide efforts have been made to improve the toughness of ZrO2 ceramic materials, which has great significance in promoting its industrial application. Herein, the influences of phase composition, stabilizer, grain size, and sintering method on fracture toughness of ZrO2 ceramic are introduced. The mechanism of phase transformation toughening, single‐phase and multiphase material dopant toughening, and lamellar ceramic toughening are also summarized. Moreover, the prevailing applications of toughened ZrO2 ‐based materials in structural ceramics, coatings, and biomaterials are discussed. The present review may offer insights in designing and fabricating ZrO2 materials with high strength and toughness to provide better performances in diverse applications fields. Abstract : Zirconia (ZrO2 ) has leading toughness among ceramic materials. Herein, the effects of stabilizer, grain size, and sintering method on the strength and toughness of ZrO2 ceramics are systematically introduced, followed by a thorough discussion on the diverse toughening methods. Insights in designing and fabricating future ZrO2 materials are offered.