Properties and Rapid Low-Temperature Consolidation of Nanocrystalline Fe-ZrO2 Composite by Pulsed Current Activated Sintering

被引：32

作者：

Kang, Hyun-Su ^{[1
]}

Ko, In-Yong ^{[1
]}

Yoon, Jin-Kook ^{[2
]}

Doh, Jung-Mann ^{[2
]}

Hong, Kyung-Tae ^{[2
]}

Shon, In-Jin ^{[1
,3
]}

机构：

[1] Chonbuk Natl Univ, Res Ctr Adv Mat Dev, Div Adv Mat Engn, Jeonju Si 561756, Jeonbuk, South Korea

[2] Korea Inst Sci & Technol, Adv Funct Mat Res Ctr, Seoul 130650, South Korea

[3] Chonbuk Natl Univ, Specialized Grad Sch, Dept Hydrogen & Fuel Cells Engn, Jeonju 561756, South Korea

来源：

METALS AND MATERIALS INTERNATIONAL | 2011年 / 17卷 / 01期

关键词：

mechanical alloying; composites; nanostructured material; mechanical properties; WC;

D O I：

10.1007/s12540-011-0208-y

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanopowders of Fe and ZrO2 were synthesized from Fe2O3 and Zr by high-energy ball milling. The powder sizes of Fe and ZrO2 were 70 nm and 12 nm, respectively. Highly dense nanostructured 4/3Fe-ZrO2 composite was consolidated by a pulsed current activated sintering method within 1 minute from the mechanically synthesized powders (Fe-ZrO2) and horizontal milled Fe2O3+Zr powders under the 1 GPa pressure. The grain sizes of Fe and ZrO2 in the composite were calculated. The average hardness and fracture toughness values of nanostuctured 4/3Fe-ZrO2 composite were investigated.

引用

页码：57 / 62

页数：6

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