Fabrication and Mechanical Properties of a Nanostructured TiN-AlN Composite by Pulsed Current Activated Sintering

被引：4

作者：

Kim, Wonbaek ^{[3
]}

Suh, Chang-Yul ^{[3
]}

Roh, Ki-Min ^{[3
]}

Lim, Jae-Won ^{[3
]}

Shim, Hyun-Bo ^{[1
,2
]}

Park, Hyun-Kuk ^{[1
,2
]}

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

机构：

[1] Chonbuk Natl Univ, Div Adv Mat Engn, Coll Engn, Chonju 561756, South Korea

[2] Chonbuk Natl Univ, Res Ctr Adv Mat Dev, Coll Engn, Chonju 561756, South Korea

[3] Korea Inst Geosci Min & Mat Resources, Minerals & Mat Proc Div, Taejon, South Korea

来源：

KOREAN JOURNAL OF METALS AND MATERIALS | 2012年 / 50卷 / 11期

关键词：

composites; nanostructured materials; sintering; mechanical properties; RAPID CONSOLIDATION; CERAMICS;

D O I：

10.3365/KJMM.2012.50.11.861

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A dense nanostructured TiN-AlN composite was prepared from high-energy ball milled TiN-AlN mixture powders by pulsed current activated sintering (PCAS). A highly dense TiN-AlN bulk composite was obtained within 2 minutes at 1500 degrees C with the simultaneous application of 80 MPa pressure and pulsed current. The fine crystalline structure of the TiN-AlN mixture, which was obtained by high-energy milling, was effectively maintained during PCAS and resulted in the enhancement of the mechanical properties. The micro hardness and fracture toughness of TiN-AlN composite were 1780 kg/mm(2) and 5 MPa . m(1/2), respectively. The mechanical properties were higher than monolithic AlN or TiN.

引用

页码：861 / 866

页数：6

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