[1]张锐,王海龙,付元中,等.SiC/Cu纳米包裹粉体及其复合材料的制备[J].郑州大学学报(工学版),2004,25(03):74-76,97.[doi:10.3969/j.issn.1671-6833.2004.03.018]
　ZHANG Rui,Wang Hailong,Fu Yuanzhong,et al.Preparation of SiC/Cu nano-coated powder and its composite materials[J].Journal of Zhengzhou University (Engineering Science),2004,25(03):74-76,97.[doi:10.3969/j.issn.1671-6833.2004.03.018]

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SiC/Cu纳米包裹粉体及其复合材料的制备()

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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

25

期数:

2004年03期

页码:

74-76,97

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

Preparation of SiC/Cu nano-coated powder and its composite materials

作者:

张锐; 王海龙; 付元中; 等.

郑州大学材料工程学院,河南,郑州,450002, 中国科学院上海硅酸盐研究所,上海,200050

Author(s):

ZHANG Rui; Wang Hailong; Fu Yuanzhong; etc

关键词:

SiC/Cu;  核-壳结构;  金属陶瓷;  复合材料;  纳米结构

Keywords:

SiC/Cu;  core-shell structure;  cermet;  composite materials;  Nanostructures

DOI:

10.3969/j.issn.1671-6833.2004.03.018

文献标志码:

A

摘要:

选用工业生产的SiC亚微米粉体,利用置换反应制备纳米Cu.采用直接还原-旋转沉淀工艺制备SiC/Cu包裹粉体.采用气氛烧结获得金属陶瓷复合材料.分别通过AES、XRD、SEM等分析方法对原始SiC粉体、包裹复合粉体和烧成样品进行表征.结果表明:包裹复合粉体具有"核-壳"结构,由于Cu的自发氧化使得复合粉体中出现Cu2O.包裹结构中SiC颗粒抑制了烧结过程中Cu的晶粒生长,从而使烧结样品呈现纳米结构.

Abstract:

Industrially produced SiC submicron powder was selected to prepare nanoCu by displacement reaction. SiC/Cu coated powder was prepared by direct reduction-rotation precipitation process. Cermet composites are obtained by atmosphere sintering. The original SiC powder, coated composite powder and firing samples were characterized by AES, XRD, SEM and other analytical methods. The results show that the coated composite powder has a "core-shell" structure, and Cu2O appears in the composite powder due to the spontaneous oxidation of Cu. SiC particles in the wrapped structure inhibit the grain growth of Cu during the sintering process, so that the sintered sample presents a nanostructure.

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