Fracture behavior of polycrystalline advanced ceramics as a function of loading rate and temperature

被引：0
|
作者：
Petrovic, Marin [1 ]
Mesic, Elmedin [1 ]
机构：
[1] Univ Sarajevo, Mech Engn Fac, Vilsonovo Setaliste 9, Sarajevo 71000, Bosnia & Herceg
来源：
JOURNAL OF APPLIED SCIENCE AND ENGINEERING | 2020年 / 23卷 / 02期
关键词：
Brittle fracture; Fracture mechanics; Impact fracture; Toughness testing; Polycrystalline advanced ceramics; DIAMOND; TOUGHNESS; HARDNESS;
D O I：
10.6180/jase.202006_23(2).0007
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Polycrystalline advanced ceramics are composite materials produced by the reaction of tungsten metal powder and carbon powder in a metal binder at temperatures of 1,400-1,500 degrees C. This process enables them a high hardness and abrasion resistance in all directions. The mode I fracture behaviour of single-edge-V-notched-beam specimens was investigated as a function of loading rate and temperature. A series of tests was conducted and plane strain fracture toughness values were determined at a range of loading rates and temperatures, as those in real operating conditions. These experimental results reveal a fracture mechanism establishing a clear connection between the fracture toughness results and the mechanisms causing fracture to happen.
引用
收藏
页码：233 / 238
页数：6
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