WC grain growth during the early stages of sintering

被引：29

作者：

Adorjan, A

Schubert, WD

Schön, A

Bock, A

Zeiler, B

机构：

[1] Vienna Univ Technol, Inst Chem Technol & Analyt, A-1060 Vienna, Austria

[2] WOLFRAM Bergbau & Hutten GmbH Nfg KG, Martin I S, Austria

来源：

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS | 2006年 / 24卷 / 05期

关键词：

ultrafine hardmetals; grain growth; discontinuous growth; WC growth inhibition;

D O I：

10.1016/j.ijrmhm.2005.11.009

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

During sintering of ultrafine-grained WC-Co hardmetals significant WC grain growth takes place already on heating to the isothermal hold. This growth occurs both isotropically as well as in an anisotropic growth mode, where comparatively large trigonal WC plates are formed. Growth inhibitors, such as VC or Cr3C2 are added to suppress this early WC growth, but only VC proved to be successful in exploiting the full potential of today's finest-grained WC powders. (c) 2005 Published by Elsevier Ltd.

引用

页码：365 / 373

页数：9

共 7 条

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[Anonymous], 1991, INT J REFRACT MET HA

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Hayashi K., 1997, P 14 INT PLANS SEM, V2, P606

[3]

GENERAL-ASPECTS AND LIMITS OF CONVENTIONAL ULTRAFINE WC POWDER MANUFACTURE AND HARD METAL PRODUCTION [J].