Mechanochemical synthesis and rapid sintering of nanocrystalline AlCr2-2Al2O3 composite and its mechanical properties

被引：0

作者：

Yoon, Jin-Kook ^{[1
]}

Shon, In-Jin ^{[2
]}

机构：

[1] Korea Inst Sci & Technol, Mat Architecturing Res Ctr, POB 131, Seoul 130650, South Korea

[2] Chonbuk Natl Univ, Res Ctr Hydrogen Fuel Cell, Div Adv Mat Engn, 664-14 Deokjin Dong L Ga, Jeonju 56756, Jeonbuk, South Korea

来源：

JOURNAL OF CERAMIC PROCESSING RESEARCH | 2016年 / 17卷 / 08期

基金：

新加坡国家研究基金会;

关键词：

Sintering; Hardness; Nanocrystalline; Fracture toughness; Synthesis; CONSOLIDATION; INTERMETALLICS; CERAMICS;

D O I：

暂无

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：

Nanopowders of AlCr2 and Al2O3 were synthesized during high energy ball milling. Densely nanostructured AlCr2-2Al(2)O(3) composite was consolidated by high-frequency induction heated sintering within 2 min from milled powders. Highly dense AlCr2-2Al(2)O(3) composite with relative density of up to 96% was produced under application of a 80 MPa pressure and the induced current. The fracture toughness of a AlCr2-Al2O3 composite in this study is similar to that of previous study, while the hardness of a AlCr2-Al2O3 composite in this study is better than that of previous study due to the grain refinement. The fracture toughness of AlCr2-2Al(2)O(3) composite is higher than that of pure Al2O3. The microstructure and mechanical properties were investigated using FE-SEM with EDS and Vickers hardness tester.

引用

页码：876 / 880

页数：5

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