Cold spraying for power electronics: Deposition of thick topologically patterned copper layers on ceramics

Abstract

The paper presents the results of research and development of cold gas-dynamic spray regimes for production of copper coatings on ceramic substrates. Samples with a topological pattern of coating were obtained and their primary diagnostics was carried out. In particular, it is shown that the samples obtained can withstand thermal cycling (more than 100 cycles) in the temperature range from -60 to +150 °C.