The materials properties and contact reliability of palladium-cobalt

IF 1.2 4区材料科学 Q4 ELECTROCHEMISTRY

Transactions of The Institute of Metal Finishing Pub Date : 1999-01-01 DOI:10.1080/00202967.1999.11871274

J. Abys, E. Kudrak, C. Fan

引用次数: 2

Abstract

SUMMARYPalladium and its alloys have become the standard precious metal finishes for high reliability connectors. While pure palladium is preferred for high temperature automotive applications, palladium-nickel has become the preferred finish for ambient temperature, high insertion applications such as edge card connectors. However, palladium-nickel, when plated over nickel, is not without its problems. Quality control issues related to the measurement of composition and thickness by simple, non-destructive XRF analysis remain a significant concern. Palladium-cobalt does not suffer from this shortcoming, and furthermore has been found to outperform palladium-nickel for high durability applications.In this study, the metallurgical structure of palladium-nickel and palladium-cobalt electrodeposits is characterized by X-ray diffraction and electron microscopy. In addition, the hardness, porosity, wear performance and thermal stability, among other properties, are discussed.

查看原文本刊更多论文

钯钴材料性能及接触可靠性研究

钯及其合金已成为高可靠性连接器的标准贵金属饰面。虽然纯钯是高温汽车应用的首选，但钯镍已成为环境温度、高插入性应用(如边缘卡连接器)的首选饰面。然而，镀在镍上的钯镍也不是没有问题。通过简单、非破坏性的XRF分析测量成分和厚度的质量控制问题仍然是一个值得关注的问题。钯钴不受这一缺点的影响，而且在高耐用性应用方面，钯钴的性能优于钯镍。本文利用x射线衍射和电子显微镜对钯镍和钯钴镀层的金相结构进行了表征。此外，还讨论了硬度、孔隙率、磨损性能和热稳定性等性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Transactions of The Institute of Metal Finishing 工程技术-材料科学：膜

CiteScore

3.40

自引率

10.50%

发文量

审稿时长

3 months

期刊介绍： Transactions of the Institute of Metal Finishing provides international peer-reviewed coverage of all aspects of surface finishing and surface engineering, from fundamental research to in-service applications. The coverage is principally concerned with the application of surface engineering and coating technologies to enhance the properties of engineering components and assemblies. These techniques include electroplating and electroless plating and their pre- and post-treatments, thus embracing all cleaning pickling and chemical conversion processes, and also complementary processes such as anodising. Increasingly, other processes are becoming important particularly regarding surface profile, texture, opacity, contact integrity, etc.