滤纸模板法制备Ag-SnO<sub>2</sub>电接触材料

付翀; 仇润红; 张宇慧; 刘宁; 王俊勃; 侯锦丽

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有色金属工程:2016,6(6):-

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滤纸模板法制备Ag-SnO₂电接触材料

付翀,仇润红,张宇慧,刘宁,王俊勃,侯锦丽

(西安工程大学机电工程学院陕西西安 710048,西安工程大学机电工程学院陕西西安 710048,西安工程大学机电工程学院陕西西安 710048,西安工程大学机电工程学院陕西西安 710048,西安工程大学机电工程学院陕西西安 710048,西安工程大学机电工程学院陕西西安 710048)

The Preparation of Ag-SnO₂ Electrical Contact Materials Using Filter Paper as Template

Fu Chong,Qiu Runhong,Zhang Yuhui,Liu Ning,Wang Junbo and Hou Jinli

(College of Mechanical and Electronic Engineering, Xi’an Polytechnic University, Xi’an 710048, China,College of Mechanical and Electronic Engineering, Xi’an Polytechnic University, Xi’an 710048, China,College of Mechanical and Electronic Engineering, Xi’an Polytechnic University, Xi’an 710048, China,College of Mechanical and Electronic Engineering, Xi’an Polytechnic University, Xi’an 710048, China,College of Mechanical and Electronic Engineering, Xi’an Polytechnic University, Xi’an 710048, China,College of Mechanical and Electronic Engineering, Xi’an Polytechnic University, Xi’an 710048, China)

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投稿时间：2016-04-29 修订日期：2016-05-24

中文摘要: 以纳米SnO2粉体和AgNO3为原料,并以滤纸为模板,通过浸渍、煅烧制备了Ag-SnO2复合粉体,然后利用压制、烧结工艺制备了Ag-SnO2电接触合金。进一步通过XRD、SEM等分析手段对所制备的复合粉体和合金样品进行表征,并借助TG-DSC对滤纸前躯体的分解过程进行分析,同时研究了不同纳米SnO2含量对Ag-SnO2电接触合金组织和性能的影响。结果表明：所制备的Ag-SnO2复合粉体由四方相金红石型结构的SnO2和立方相的Ag组成,模板去除干净,无杂质引入。且由于滤纸模板的引入,使得SnO2颗粒弥散分布于Ag基体中。随着SnO2含量的增加,Ag-SnO2电接触合金的硬度有上升的趋势,但高氧化物含量也导致模板的分散效果变差,使得合金的电导率和致密度逐渐降低。

中文关键词: Ag-SnO2 电接触材料滤纸模板法

Abstract:The aim of improving properties of Ag-SnO₂ electrical contact materials can be achieved through increasing dispersion of tin oxide in silver matrix. Therefore, Ag-SnO₂ composite powders were prepared by impregnation and calcination methods using the nano SnO₂powders and AgNO₃ as the raw materials and filter paper as template. Subsequently, Ag-SnO₂ electrical contact materials were prepared by pressing and sintering. The obtained Ag-SnO₂ composite powders and alloys were characterized through XRD and SEM. The decomposition process of filter paper precursor was analyzed with the help of the TG-DSC. Meanwhile, the microstructure and properties of Ag-SnO₂ electrical contact alloys with different SnO₂ contents were also investigated. The results demonstrate that the composite powders are in good agreement with the tetragonal rutile SnO₂and face-centered cubic Ag, and the template has been removed without any impurities. SnO₂ powders are uniformly dispersed in Ag matrix with the help of template. With the increasing of SnO₂ contents, the dispersion effect has been weakened by using filter paper as template. Therefore, the physical properties of Ag-SnO₂ alloys, such as density and conductivity are gradually decreasing, but the hardness of as prepared alloys shows a reverse trend.

keywords: Ag-SnO₂ electrical contact materials ashless quantitative filter paper template

文章编号： 中图分类号：TM201; TG146.3 文献标志码：

基金项目:国家自然科学(51401154)；陕西省自然科学(2015JQ5176)；西安工程大学研究生创新基金(CX201605)

作者	单位	E-mail
付翀^*	西安工程大学机电工程学院陕西西安 710048	fuchong69@163.com
仇润红	西安工程大学机电工程学院陕西西安 710048
张宇慧	西安工程大学机电工程学院陕西西安 710048
刘宁	西安工程大学机电工程学院陕西西安 710048
王俊勃	西安工程大学机电工程学院陕西西安 710048
侯锦丽	西安工程大学机电工程学院陕西西安 710048

引用文本：
付翀,仇润红,张宇慧,刘宁,王俊勃,侯锦丽.滤纸模板法制备Ag-SnO₂电接触材料[J].有色金属工程,2016,6(6):.

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Author Name	Affiliation	E-mail
Fu Chong	College of Mechanical and Electronic Engineering, Xi’an Polytechnic University, Xi’an 710048, China	fuchong69@163.com
Qiu Runhong	College of Mechanical and Electronic Engineering, Xi’an Polytechnic University, Xi’an 710048, China
Zhang Yuhui	College of Mechanical and Electronic Engineering, Xi’an Polytechnic University, Xi’an 710048, China
Liu Ning	College of Mechanical and Electronic Engineering, Xi’an Polytechnic University, Xi’an 710048, China
Wang Junbo	College of Mechanical and Electronic Engineering, Xi’an Polytechnic University, Xi’an 710048, China
Hou Jinli	College of Mechanical and Electronic Engineering, Xi’an Polytechnic University, Xi’an 710048, China