Tough hybrid ceramic-based material with high strength

被引：12

作者：

Guo, Shuqi ^{[1
]}

Kagawa, Yutaka ^{[1
,2
]}

Nishimura, Toshiyuki ^{[3
]}

机构：

[1] Natl Inst Mat Sci, Hybrid Mat Unit, Tsukuba, Ibaraki 3050047, Japan

[2] Univ Tokyo, Res Ctr Adv Sci & Technol, Meguro Ku, Tokyo 1538505, Japan

[3] Natl Inst Mat Sci, Sialon Unit, Tsukuba, Ibaraki 3050044, Japan

来源：

SCRIPTA MATERIALIA | 2012年 / 67卷 / 09期

关键词：

Zirconium compounds; Hybrid ceramics; Platelet-like grains; Flexural strength; Fracture toughness; FRACTURE-TOUGHNESS; MECHANISMS; MICROSTRUCTURE; ZIRCONIUM; DUCTILE; BRITTLE; DAMAGE;

D O I：

10.1016/j.scriptamat.2012.07.042

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This study describes a tough and strong hybrid ceramic material consisting of platelet-like zirconium compounds and metal. A mixture of boron carbide and excess zirconium powder was heated to 1900 degrees C using a liquid-phase reaction sintering technique to produce a platelet-like ZrB2-based hybrid ceramic bonded by a thin zirconium layer. The platelet-like ZrB2 grains were randomly present in the as-sintered hybrid ceramic. Relative to non-hybrid ceramics, the fracture toughness and flexural strength of the hybrid ceramic increased by approximately 2-fold. (c) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：744 / 747

页数：4

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