Fracture toughness testing of small ceramic discs and plates

被引：25

作者：

Strobl, Stefan ^{[1
,2
]}

Rasche, Stefan ^{[2
]}

Krautgasser, Clemens ^{[1
,2
]}

Sharova, Eugenia ^{[1
,2
]}

Lube, Tanja ^{[2
]}

机构：

[1] Mat Ctr Leoben Forsch GmbH, A-8700 Leoben, Austria

[2] Univ Leoben, Inst Struktur & Funkt Keram, A-8700 Leoben, Austria

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2014年 / 34卷 / 06期

关键词：

Fracture toughness; Mechanical characterisation; B3B; B3B-KIc; Surface Crack in Flexure; 3 BALLS TEST; MECHANICAL-PROPERTIES; BRITTLE DISCS; STRENGTH; FABRICATION;

D O I：

10.1016/j.jeurceramsoc.2013.12.021

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A new fracture toughness test for discs and plates is presented, which can be applied to small specimens (>5 mm diameter). A semi-elliptical surface crack is made into the centre of the top plane using a Knoop intender. Then the layer containing the plastically deformed zone is ground off and the crack is loaded in tension using the Ball-on-3-Balls test. Applied to five different ceramic materials the results gained with the new method agree well with those of standardised methods. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：1637 / 1642

页数：6

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