Synthesis of tungsten nanopowders: Comparison of milling, SHS, MASHS and milling-induced chemical processes

被引：22

作者：

Dine, Sarah ^{[1
]}

Aid, Sara ^{[1
]}

Ouaras, Karim ^{[1
]}

Malard, Veronique ^{[2
]}

Odorico, Michael ^{[2
]}

Herlin-Boime, Nathalie ^{[3
,4
]}

Habert, Aurelie ^{[3
,4
]}

Gerbil-Margueron, Adele ^{[3
,4
]}

Grisolia, Christian ^{[5
]}

Chene, Jacques ^{[6
]}

Pieters, Gregory ^{[6
]}

Rousseau, Bernard ^{[6
]}

Vrel, Dominique ^{[1
]}

机构：

[1] Univ Paris 13, LSPM, Sorbonne Paris Cite, CNRS UPR 3407, F-93430 Villetaneuse, France

[2] CEA, DSV, IBEB, Lab Biochim Syst Perturb, F-30207 Bagnols Sur Ceze, France

[3] CEA, IRAMIS NIMBE, Lab Francis Perrin, CEA CNRS URA 2453, F-91191 Gif Sur Yvette, France

[4] CEA Saclay, OMNT, F-91191 Gif Sur Yvette, France

[5] CEA, IRFM, F-13108 St Paul Les Durance, France

[6] CEA Saclay, SCBM, iBiTec S, Tritium Labelling Lab, F-91191 Gif Sur Yvette, France

来源：

ADVANCED POWDER TECHNOLOGY | 2015年 / 26卷 / 05期

关键词：

Tungsten; Nanopowders; Milling-induced chemical reaction; Self-propagating High-temperature; Synthesis; Mechanical activation; MECHANICAL-PROPERTIES; NANOPARTICLES; DIFFRACTION; ADDITIONS;

D O I：

10.1016/j.apt.2015.07.004

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Synthesis of tungsten nanopowders was studied using milling of micrometric tungsten, then using the WO3-Mg thermitic reaction, using SHS (Self-propagating High-temperature Synthesis), milling induced chemical reaction (MICR), and MASHS (Mechanically Activated SHS). Reactions are studied by measuring temperature and pressure inside the milling jar (during MICR), or by analyzing the temperature profile along the sample during the reaction propagation by infrared thermography (SHS, MASHS). After reaction, samples were analyzed by AFM or SEM, by XRD, and BET. MASHS seems to possess optimum conditions with a pre-milling before SHS of 10 min, which yielded the highest tungsten purity, together with a grain size corresponding to our aim. (C) 2015 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.

引用

页码：1300 / 1305

页数：6

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