Preparation of TiC/W core-shell structured powders by one-step activation and chemical reduction process

被引：21

作者：

Ding, Xiao-Yu ^{[1
]}

Luo, Lai-Ma ^{[1
,3
]}

Huang, Li-Mei ^{[1
]}

Luo, Guang-Nan ^{[2
]}

Zhu, Xiao-Yong ^{[1
,3
]}

Cheng, Ji-Gui ^{[1
,3
]}

Wu, Yu-Cheng ^{[1
,3
]}

机构：

[1] Hefei Univ Technol, Coll Mat Sci & Engn, Hefei 230009, Peoples R China

[2] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China

[3] Engn Res Ctr Powder Met Anhui Prov, Hefei 230009, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 619卷

基金：

中国国家自然科学基金;

关键词：

One-step activation; Chemical reduction; TiC/W; Core-shell; COMPOSITES; TUNGSTEN; NANOPARTICLES; ENHANCEMENT; EVOLUTION; STRENGTH; ALLOYS;

D O I：

10.1016/j.jallcom.2014.08.242

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：

In the present study, one-step activation and chemical reduction process as a novel wet-chemical route was performed for the preparation of TiC/W core-shell structured ultra-fine powders. The XRD, FE-SEM, TEM and EDS results demonstrated that the as-synthesized powders are of high purity and uniform with a diameter of approximately 500 nm. It is also found that the TiC nanoparticles were well-encapsulated by W shells. Such a unique process suggests a new method for preparing X/W (X refers the water-insoluble nanoparticles) core-shell nanoparticles with different cores. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：704 / 708

页数：5

共 24 条

[21] Bulk tungsten with uniformly,dispersed La2O3 nanoparticles sintered from co-precipitated La2O3/W nanoparticles [J].

Xia, Min ;

Yan, Qingzhi ;

Xu, Lei ;

Guo, Hongyan ;

Zhu, Lingxu ;

Ge, Changchun .

JOURNAL OF NUCLEAR MATERIALS, 2013, 434 (1-3) :85-89

[22] Synthesis of TiC/W core-shell nanoparticles by precipitate-coating process [J].

Xia, Min ;

Yan, Qingzhi ;

Xu, Lei ;

Zhu, Lingxu ;

Guo, Hongyan ;

Ge, Changchun .

JOURNAL OF NUCLEAR MATERIALS, 2012, 430 (1-3) :216-220

[23] Spark plasma sintering of tungsten-yttrium oxide composites from chemically synthesized nanopowders and microstructural characterization [J].

Yar, M. A. ;

Wahlberg, Sverker ;

Bergqivist, Hans ;

Salem, H. G. ;

Johnsson, Mats ;

Muhammed, Mamoun .

JOURNAL OF NUCLEAR MATERIALS, 2011, 412 (02) :227-232

[24] Synthesis of nanocrystalline TiC reinforced W nanocomposites by high-energy mechanical alloying: Microstructural evolution and its mechanism [J].

Zhang, Guoquan ;

Gu, Dongdong .

APPLIED SURFACE SCIENCE, 2013, 273 :364-371

← 1 2 3 →