Coated WC powders by sputtered nanostructured Ni and stainless steel

被引：10

作者：

Castanho, J. M. ^{[1
]}

Vieira, M. T. ^{[1
]}

Fernandes, C. M. ^{[2
]}

Senos, A. M. R. ^{[2
]}

Matos, M. ^{[1
]}

机构：

[1] ICEMS, Dept Mech Engn, P-3030201 Coimbra, Portugal

[2] Univ Aveiro, CICECO, Dept Ceram & Glass Engn, P-3810193 Aveiro, Portugal

来源：

VACUUM | 2008年 / 82卷 / 12期

关键词：

thin film; steel; tungsten carbide; powder;

D O I：

10.1016/j.vacuum.2008.03.040

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The efficiency of the powder surface modification depends on their surface characteristics. Sputtering has been revealing an important skill for the coating of powders with metal and metal alloys, with important consequences on the surface properties. However, some modifications in the holder of this particulate substrate have obliged to set up some changes in a non-conventional sputtering system. The aim of the present work is to demonstrate the efficiency of the prototype developed and the influence of deposition parameters in the quality of coated powders; tungsten carbide powders and austenitic stainless steel (SS) and nickel targets have been selected. These types of materials are used in tungsten carbide parts/devices as binders to promote the technological process; as coatings they decrease the interparticle friction reducing the pressure of shape forming as well as the temperature of sintering process. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1404 / 1406

页数：3

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