[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.4150/KPMI.2022.29.3.226

Fabrication, Microstructure and Adhesion Properties of BCuP-5 Filler Metal/Ag Plate Clad Material by Using High Velocity Oxygen Fuel Thermal Spray Process

Joo, Yeun A (Department of Materials Science and Engineering, Inha University)
Cho, Yong-Hoon (Department of Materials Science and Engineering, Inha University)
Park, Jae-Sung (LT Metal LTD.)
Lee, Kee-Ahn (Department of Materials Science and Engineering, Inha University)

Publication Information

Journal of Powder Materials / v.29, no.3, 2022 , pp. 226-232 More about this Journal

Abstract

In this study, a new manufacturing process for a multilayer-clad electrical contact material is suggested. A thin and dense BCuP-5 (Cu-15Ag-5P filler metal) coating layer is fabricated on a Ag plate using a high-velocity oxygen-fuel (HVOF) process. Subsequently, the microstructure and bonding properties of the HVOF BCuP-5 coating layer are evaluated. The thickness of the HVOF BCuP-5 coating layer is determined as 34.8 ㎛, and the surface fluctuation is measured as approximately 3.2 ㎛. The microstructure of the coating layer is composed of Cu, Ag, and Cu-Ag-Cu3P ternary eutectic phases, similar to the initial BCuP-5 powder feedstock. The average hardness of the coating layer is 154.6 HV, which is confirmed to be higher than that of the conventional BCuP-5 alloy. The pull-off strength of the Ag/BCup-5 layer is determined as 21.6 MPa. Thus, the possibility of manufacturing a multilayer-clad electrical contact material using the HVOF process is also discussed.

Keywords

High Velocity Oxygen Fuel Spray; Switching Device; Cu-15Ag-5P (BCuP-5); Multi-layer clad material; Microstructure;

Citations & Related Records

Times Cited By KSCI : 1 (Citation Analysis)

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