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

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