Synthesis mechanism and sintering behavior of tungsten carbide powder produced by a novel solid state reaction of W2N

Shi-Kuan Sun; Yan-Mei Kan; De Wei Ni; Ji Zou; Guo-Jun Zhang

doi:10.1016/j.ijrmhm.2012.05.003

Synthesis mechanism and sintering behavior of tungsten carbide powder produced by a novel solid state reaction of W2N

Shi-Kuan Sun, Yan-Mei Kan, De Wei Ni, Ji Zou, Guo-Jun Zhang

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

Nanosized WC powder was synthesized by solid state reaction between tungsten nitride (W2N) and carbon black. The reaction path and the phase evolution during the synthesis were studied. It was found that W2N firstly decomposed to tungsten metal in the middle stage of synthesis, and then it reacted with carbon black to form W2C and WC in sequence. Using this WC powder as the starting material, binderless WC hardmetals were prepared by hot pressing, and the microstructure and mechanical properties of the material were investigated.

Original language	English
Journal	International Journal of Refractory Metals and Hard Materials
Volume	35
Pages (from-to)	202-206
ISSN	0263-4368
DOIs	https://doi.org/10.1016/j.ijrmhm.2012.05.003
Publication status	Published - 2012
Externally published	Yes

Keywords

Tungsten carbide
Solid state reaction
Powder processing
Ultrafine powder

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10.1016/j.ijrmhm.2012.05.003

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title = "Synthesis mechanism and sintering behavior of tungsten carbide powder produced by a novel solid state reaction of W2N",

abstract = "Nanosized WC powder was synthesized by solid state reaction between tungsten nitride (W2N) and carbon black. The reaction path and the phase evolution during the synthesis were studied. It was found that W2N firstly decomposed to tungsten metal in the middle stage of synthesis, and then it reacted with carbon black to form W2C and WC in sequence. Using this WC powder as the starting material, binderless WC hardmetals were prepared by hot pressing, and the microstructure and mechanical properties of the material were investigated.",

keywords = "Tungsten carbide, Solid state reaction, Powder processing, Ultrafine powder",

author = "Shi-Kuan Sun and Yan-Mei Kan and Ni, {De Wei} and Ji Zou and Guo-Jun Zhang",

year = "2012",

doi = "10.1016/j.ijrmhm.2012.05.003",

language = "English",

volume = "35",

pages = "202--206",

journal = "International Journal of Refractory Metals and Hard Materials",

issn = "0263-4368",

publisher = "Elsevier",

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TY - JOUR

T1 - Synthesis mechanism and sintering behavior of tungsten carbide powder produced by a novel solid state reaction of W2N

AU - Sun, Shi-Kuan

AU - Kan, Yan-Mei

AU - Ni, De Wei

AU - Zou, Ji

AU - Zhang, Guo-Jun

PY - 2012

Y1 - 2012

N2 - Nanosized WC powder was synthesized by solid state reaction between tungsten nitride (W2N) and carbon black. The reaction path and the phase evolution during the synthesis were studied. It was found that W2N firstly decomposed to tungsten metal in the middle stage of synthesis, and then it reacted with carbon black to form W2C and WC in sequence. Using this WC powder as the starting material, binderless WC hardmetals were prepared by hot pressing, and the microstructure and mechanical properties of the material were investigated.

AB - Nanosized WC powder was synthesized by solid state reaction between tungsten nitride (W2N) and carbon black. The reaction path and the phase evolution during the synthesis were studied. It was found that W2N firstly decomposed to tungsten metal in the middle stage of synthesis, and then it reacted with carbon black to form W2C and WC in sequence. Using this WC powder as the starting material, binderless WC hardmetals were prepared by hot pressing, and the microstructure and mechanical properties of the material were investigated.

KW - Tungsten carbide

KW - Solid state reaction

KW - Powder processing

KW - Ultrafine powder

U2 - 10.1016/j.ijrmhm.2012.05.003

DO - 10.1016/j.ijrmhm.2012.05.003

M3 - Journal article

SN - 0263-4368

VL - 35

SP - 202

EP - 206

JO - International Journal of Refractory Metals and Hard Materials

JF - International Journal of Refractory Metals and Hard Materials

ER -

Synthesis mechanism and sintering behavior of tungsten carbide powder produced by a novel solid state reaction of W2N

Abstract

Keywords

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