Electrical and water resistance properties of conductive paste based on gold/silver composites

IF 0.7 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of metals, materials and minerals Pub Date : 2023-12-13 DOI:10.55713/jmmm.v33i4.1786

S. Wongrerkdee, S. Choopun, P. Pimpang

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Abstract

This study aimed to investigate the effects of a corrosive environment on both the electrical and the water resistance properties of conductive paste based on gold/silver composites. The conductive paste was prepared by incorporating silver and gold powders, polyvinyl acetate, polyvinyl chloride as adhesive components, and methyl isobutyl ketone as a diluent. The gold/silver composite powder was prepared with different mass ratios of gold and silver. The paste was coated on a substrate and heated at 80℃ to form the conductive paste film. Characterizations of conductive paste were performed by using FT-IR spectroscopy, electrometry, cyclic voltammetry, and contact angle measurements. Thus, the conductive paste films were tested under two conditions: the absence and the presence of exposure to nitric acid vapor. The results showed that the resistance and the contact angle of the conductive paste were more stable after exposure to nitric acid vapor, particularly in samples of higher gold content. Furthermore, the electrochemical behavior of the conductive paste with gold content remains unchanged after exposure to nitric acid vapor. Results suggest that gold has properties in terms of stability, resistance to oxidation, and maintaining surface characteristics, making it a preferable component for applications requiring resistance to corrosive environments.

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基于金/银复合材料的导电浆料的导电性和耐水性能

本研究旨在探讨腐蚀环境对基于金/银复合材料的导电浆料的导电性能和防水性能的影响。导电浆料由银粉和金粉、聚醋酸乙烯酯和聚氯乙烯作为粘合剂成分以及甲基异丁基酮作为稀释剂制备而成。金银复合粉末的制备采用了不同的金银质量比。将浆糊涂在基底上，在 80℃ 下加热形成导电浆膜。使用傅立叶变换红外光谱法、电测量法、循环伏安法和接触角测量法对导电浆料进行了表征。因此，导电浆膜在两种条件下进行了测试：没有接触硝酸蒸汽和接触硝酸蒸汽。结果表明，接触硝酸蒸汽后，导电膏的电阻和接触角更加稳定，尤其是金含量较高的样品。此外，金含量高的导电膏在接触硝酸蒸汽后的电化学行为保持不变。研究结果表明，金具有稳定性、抗氧化性和保持表面特性等特性，使其成为需要抗腐蚀环境的应用中的理想成分。

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来源期刊

Journal of metals, materials and minerals MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

1.40

自引率

11.10%

发文量

期刊介绍： Journal of Metals, Materials and Minerals (JMMM) is a double-blind peer-reviewed international journal published 4 issues per year (starting from 2019), in March, June, September, and December, aims at disseminating advanced knowledge in the fields to academia, professionals and industrialists. JMMM publishes original research articles as well as review articles related to research and development in science, technology and engineering of metals, materials and minerals, including composite & hybrid materials, concrete and cement-based systems, ceramics, glass, refractory, semiconductors, polymeric & polymer-based materials, conventional & technical textiles, nanomaterials, thin films, biomaterials, and functional materials.