Mechanochemical synthesis and rapid consolidation of nanostructured 2Co-ZrO2 composite by pulsed current activated heating

被引：0

作者：

Kwak, Bong-Won ^{[1
]}

Kim, Byung-Su ^{[2
]}

Shon, In-Jin ^{[1
]}

机构：

[1] Chonbuk Natl Univ, Div Adv Mat Engn, Res Ctr Hydrogen & Fuel Cell, Jeonju 561756, Jeonbuk, South Korea

[2] Korea Inst Geosci & Mineral Resources, Minerals Resources Res Div, Daejeon 305350, South Korea

来源：

JOURNAL OF CERAMIC PROCESSING RESEARCH | 2015年 / 16卷 / 05期

关键词：

Sintering; Composite; Nanomaterial; Mechanical properties; Co-ZrO2; MECHANICAL-PROPERTIES; POWDERS; PRESSURE; ALUMINUM; ENERGY;

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：

Despite of many attractive properties, the low fracture toughness of ZrO2 ceramic limits its wide application. One of the most obvious tactics to improve the mechanical properties has been to add a reinforcing agent to formulate a nanostructured composite materials. Nanopowders of Co and ZrO2 were synthesized from 2CoO and Zr by high energy ball milling. The powder sizes of Co and ZrO2 were about 27 nm and 37 nm, respectively. Dense nanocrystalline 2Co-ZrO2 composite was consolidated by pulsed current activated sintering method within two minutes from the mechanically synthesized powders( 2Co-ZrO2). The average hardness and fracture toughness values of nanostuctured 2Co-ZrO2 composite were also investigated.

引用

页码：451 / 456

页数：6

共 33 条

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