Spark plasma sintering of tungsten carbide nanopowders obtained through DC arc plasma synthesis

被引：50

作者：

Chuvil'deev, V. N. ^{[1
]}

Blagoveshchenskiy, Yu. V. ^{[2
]}

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

Boldin, M. S. ^{[1
]}

Sakharov, N. V. ^{[1
]}

Isaeva, N. V. ^{[2
]}

Shotin, S. V. ^{[1
]}

Belkin, O. A. ^{[1
]}

Popov, A. A. ^{[1
]}

Smirnova, E. S. ^{[1
]}

Lantsev, E. A. ^{[1
]}

机构：

[1] Lobachevsky State Univ Nizhniy Novgorod, Lobachevsky Univ, UNN, Gagarina Ave,23, Nizhnii Novgorod 603950, Russia

[2] RAS, AA Baykov Inst Met & Mat Sci, Leninskii Ave,49, Moscow 119991, Russia

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 708卷

基金：

俄罗斯基础研究基金会;

关键词：

Tungsten carbide; Nanopowders; Spark plasma sintering; DC arc thermal plasma synthesis; Grain growth; MECHANICAL-PROPERTIES; WC; CONSOLIDATION; TECHNOLOGY; NANOCRYSTALLINE; MICROSTRUCTURE; DIFFUSION; METALS; OXYGEN; FIELD;

D O I：

10.1016/j.jallcom.2017.03.035

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The paper dwells on the research conducted into high-rate consolidation of pure tungsten carbide (WC) nanopowders using the Spark Plasma Sintering technology. Studies included the effect that the original size of WC nanoparticles and their preparation modes have on density, structure parameters, and mechanical properties of tungsten carbide. Samples of high-density nanostructured tungsten carbide characterized by high hardness (up to 31-34 GPa) and improved fracture toughness (4.3-5.2 MPa m(1/2)) were obtained. It has been found that materials that show abnormal grain growth during sintering have lower values of sintering activation energy as compared to materials the structure of which is more stable during high-rate heating. A qualitative model is proposed that explains this effect through the dependence of the grain boundary diffusion coefficient on the grain boundary migration rate. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：547 / 561

页数：15

共 51 条

[11] A comparative study of the hot pressing and spark plasma sintering of Al2O3-ZrO2-Ti(C,N) powders [J].

Chuvil'deev, V. N. ;

Boldin, M. S. ;

Dyatlova, Ya. G. ;

Rumyantsev, V. I. ;

Ordanyan, S. S. .

INORGANIC MATERIALS, 2015, 51 (10) :1047-1053

[12] Study of the Structure and Mechanical Properties of Nano- and Ultradispersed Mechanically Activated Heavy Tungsten Alloys [J].

Chuvil'deev, V. N. ;

Nokhrin, A. V. ;

Baranov, G. V. ;

Moskvicheva, A. V. ;

Boldin, M. S. ;

Kotkov, D. N. ;

Sakharov, N. V. ;

Blagoveshchenskii, Yu. V. ;

Shotin, S. V. ;

Melekhin, N. V. ;

Belov, V. Yu. .

NANOTECHNOLOGIES IN RUSSIA, 2013, 8 (1-2) :108-121

[13] Ultrastrong Nanodispersed Tungsten Pseudoalloys Produced by High-Energy Milling and Spark Plasma Sintering [J].

Chuvil'deev, V. N. ;

Moskvicheva, A. V. ;

Nokhrin, A. V. ;

Baranov, G. V. ;

Blagoveshchenskii, Yu. V. ;

Kotkov, D. N. ;

Lopatin, Yu. G. ;

Belov, V. Yu. .

DOKLADY PHYSICS, 2011, 56 (02) :109-113

[14] A theory of non-equilibrium grain boundaries and its applications to nano- and micro-crystalline materials processed by ECAP [J].

Chuvil'deev, VN ;

Kopylov, VI ;

Zeiger, W .

ANNALES DE CHIMIE-SCIENCE DES MATERIAUX, 2002, 27 (03) :55-64

[15]

Erdelyi G., 1999, DIFFUSION NONMETAL 1, P1

[16] Hot pressing of tungsten carbide with and without sintering additives [J].

Gubernat, Agnieszka ;

Rutkowski, Pawel ;

Grabowski, Grzegorz ;

Zientara, Dariusz .

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2014, 43 :193-199

[17] Chemical processing and properties of nanostructured WC-Co materials [J].

Kear, B.H. ;

McCandlish, L.E. .

Nanostructured Materials, 1993, 3 (1-6)

[18] Kinetics of tungsten carbidization under non-isothermal conditions [J].

Kharatyan, S. L. ;

Chatilyan, H. A. ;

Arakelyan, L. H. .

MATERIALS RESEARCH BULLETIN, 2008, 43 (04) :897-906

[19] One step synthesis and densification of ultra-fine WC by high-frequency induction combustion [J].

Kim, HC ;

Shon, IJ ;

Yoon, JK ;

Lee, SK ;

Munir, ZA .

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2006, 24 (03) :202-209

[20] Consolidation and properties of binderless sub-micron tungsten carbide by field-activated sintering [J].

Kim, HC ;

Shon, IJ ;

Garay, JE ;

Munir, ZA .

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2004, 22 (06) :257-264

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