Hardness studies and fracture behaviour on flux-grown YFeO3 single crystals

被引：15
作者：
Bamzai, K
Kotru, PN
Wanklyn, BM
机构：
[1] UNIV JAMMU,DEPT PHYS,JAMMU 180004,INDIA
[2] UNIV OXFORD,DEPT PHYS,CLARENDON LAB,OXFORD OX1 3PU,ENGLAND
来源：
CRYSTAL RESEARCH AND TECHNOLOGY | 1996年 / 31卷 / 06期
关键词：
D O I：
10.1002/crat.2170310617
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
Results of Vickers' microhardness (H-v), fracture toughness (K-c), brittleness index (B-i) of (110) and (001) faces of flux-grown yttrium orthoferrite crystals: in the load range of 10-100 g, are given. The cracks are classified into Palmqvist and median types. The transition from Palmqvist to median type of cracks is shown to take place when the applied load exceeds 50 g. Application of the formula of NIHARA et al. for only median cracks leads to calculation of more precise values for fracture toughness and brittleness index than what was reported earlier (BAMZAI et al.) as an average value.
引用
收藏
页码：813 / 819
页数：7
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