Rapid consolidation of nanocrystalline 3Ni-Al2O3 composite from mechanically synthesized powders by high frequency induction heated sintering

被引：8

作者：

Park, Na-Ra ^{[1
,2
]}

Ko, In-Yong ^{[1
,2
]}

Doh, Jung-Mann ^{[3
]}

Kong, Woo-Yeon ^{[1
,2
]}

Yoon, Jin-Kook ^{[3
]}

Shon, In-Jin ^{[1
,2
,4
]}

机构：

[1] Chonbuk Natl Univ, Div Adv Mat Engn, Jeonju 561765, South Korea

[2] Chonbuk Natl Univ, Coll Engn, Res Ctr Ind Technol, Jeonju 561765, South Korea

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

[4] Chonbuk Natl Univ, Specialized Grad Sch, Dept Hydrogen & Fuel Cells Engn, Jeonju 561765, South Korea

来源：

MATERIALS CHARACTERIZATION | 2010年 / 61卷 / 03期

关键词：

Rapid sintering; Composite; Nanophase; Mechanical properties; Ni-Al2O3; FRACTURE-TOUGHNESS; HARD MATERIALS; WC; SYSTEM; ZRO2;

D O I：

10.1016/j.matchar.2009.12.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanopowders of Ni and Al2O3 were synthesized from 3NiO and 2Al powders by high energy ball milling. Nanocrystalline Al2O3 reinforced composite was consolidated by high frequency induction heated sintering method within 2min from mechanically synthesized powders of Al2O3 and 3Ni. The relative density of the composite was 96%. The average hardness and fracture toughness values obtained were 645 kg/mm(2) and 6.3 MPa m(1/2), respectively. (C) 2009 Elsevier Inc. All rights reserved.

引用

页码：277 / 282

页数：6

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