Shrinkage and shrinkage rate behavior in Cdiamond-Fe-Cu-Ni-Sn-CrB2 system during hot pressing of pressureless-sintered compacts

被引：22

作者：

Bondarenko, M. O. ^{[1
]}

Mechnik, V. A. ^{[1
]}

Suprun, M. V. ^{[1
]}

机构：

[1] Natl Acad Sci Ukraine, Bakul Inst Superhard Mat, Kiev, Ukraine

来源：

JOURNAL OF SUPERHARD MATERIALS | 2009年 / 31卷 / 04期

关键词：

composite; shrinkage; hot pressing; pressureless sintering; chromium diboride; phase and structural changes; mechanical properties;

D O I：

10.3103/S1063457609040042

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The paper addresses the effect of pressure and a chromium diboride additive on shrinkage and shrinkage rate in hot pressing and on mechanical properties of the resulting diamond-containing composites based on Fe, Cu, Ni, and Sn powders. The shrinkage rate curves are found to have a stepwise trend. The shrinkage rate variations are shown to be associated with the phase and structural changes that occur in this system. The authors have determined the initial composition and p,T-conditions that ensure process activation and simultaneous improvement in mechanical properties of the composite.

引用

页码：232 / 240

页数：9

共 10 条

[1]

Bondarenko N.A., 2008, OSNOVY SOZDANIYA ALM

[2]

Bondarenko N.A., 2006, MATER, V28, P3

[3]

Bondarenko N.A., 2005, SVERKHTVERDYE MAT, P3

[4]

Fedorchenko I.M., 1985, Powder Metallurgy. Materials, Technologies, Properties, and Application: Handbook

[5]

Hansen M., 1958, CONSTITUTION BINARY

[6]

[Новиков Н.В. Novikov N.V.], 2005, [Физическая мезомеханика, Physical Mesomechanics, Fizicheskaya mezomekhanika], V8, P99

[7]

Novikov N. V., 2004, FIZICHESKAYA MEZOMEK, V7, P79

[8]

Samsonov G. V., 1975, Borides

[9]

Savitskii A P, 1991, ZHIDKOFAZNOE SPEKANI

[10]

ZHORIN VA, 1981, DOKL AKAD NAUK SSSR+, V261, P405

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