Indentation brittleness of ceramics: A fresh approach
Indentation brittleness of ceramics: A fresh approach
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DOI：
10.1023/a:1018671823059
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发表时间：
1997-08-15
影响因子：
4.5
通讯作者：
Quinn, GD
中科院分区：
文献类型：
--
作者：
Quinn, JB;Quinn, GD
陶瓷材料的硬度和脆性是相互联系的。在硬度测试中，硬材料更容易在压痕附近断裂，而软材料倾向于塑性变形成压痕形状而不会断裂。测得的硬度依次受到试样变形和断裂过程的影响。这种相互关系是通过广泛的维氏硬度试验来检验的。提出了一种新的脆性指标。
The hardness and brittleness of ceramic materials are interrelated. Hard materials are more apt to fracture in the vicinity of an indentation during a hardness test, while softer materials tend to plastically deform to the indenter shape without fracturing. Measured hardness, in turn, is affected by both specimen deformation and fracture processes. This interrelationship is examined by means of extensive Vickers hardness testing. A new index of brittleness is proposed.