Spark plasma sintering on nanometer scale WC-Co powder

被引：54

作者：

Jia, CC ^{[1
]}

Tang, H ^{[1
]}

Mei, XZ ^{[1
]}

Yin, FZ ^{[1
]}

Qu, XH ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China

来源：

MATERIALS LETTERS | 2005年 / 59卷 / 19-20期

关键词：

powder technology; WC-Co cemented carbides; spark plasma sintering; microstructure; grain size; hardness;

D O I：

10.1016/j.matlet.2005.04.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanometer scale WC-11Co powder was sintered by spark plasma sintering (SPS) process in order to improve the properties of the cemented carbides. Properties such as density and hardness were measured. The microstructures of sintered WC-11Co cemented carbides were observed. The grain size of WC in alloys was also obtained. The results showed that spark plasma sintering could lower the sintering temperature, increased the density and circumscribed the growth of grain size of WC. Besides, the hardness of the sintered cemented alloys that was dependent on the grain size and densification could also be improved by SPS. SPS was an effective method to get WC-11Co cemented carbides with fine grain size and good properties. (c) 2005 Elsevier B.V All rights reserved.

引用

页码：2566 / 2569

页数：4

共 7 条

[1] Spark plasma sintering behavior of nanocrystalline WC-10Co cemented carbide powders [J].

Cha, SI ;

Hong, SH ;

Kim, BK .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 351 (1-2) :31-38

[2] Synthesis and characterizations of ball-milled nanocrystalline WC and nanocomposite WC-Co powders and subsequent consolidations [J].

El-Eskandarany, MS ;

Mahday, AA ;

Ahmed, HA ;

Amer, AH .

JOURNAL OF ALLOYS AND COMPOUNDS, 2000, 312 (1-2) :315-325

[3] Advanced and new grades of WC and binder powder - their properties and application [J].

Gille, G ;

Bredthauer, J ;

Gries, B ;

Mende, B ;

Heinrich, W .

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2000, 18 (2-3) :87-102

[4] Microstructure, hardness and toughness of nanostructured and conventional WC-Co composites [J].

Jia, K ;

Fischer, TE ;

Gallois, B .

NANOSTRUCTURED MATERIALS, 1998, 10 (05) :875-891

[5] Sintering, consolidation, reaction and crystal growth by the spark plasma system (SPS) [J].

Omori, M .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2000, 287 (02) :183-188

[6] Growth inhibition of nano WC particles in WC-Co alloys during liquid-phase sintering [J].

Seo, O ;

Kang, SH ;

Lavernia, EJ .

MATERIALS TRANSACTIONS, 2003, 44 (11) :2339-2345

[7] Restoring WC in plasma sprayed WC-Co coatings through spark plasma sintering (SPS) [J].

Yu, LG ;

Khor, KA ;

Li, H ;

Pay, KC ;

Yip, TH ;

Cheang, P .

SURFACE & COATINGS TECHNOLOGY, 2004, 182 (2-3) :308-317

← 1 →