Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials
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Study of the properties of diffusion-hardening composite solders modified with a Ti – Mo powder mixture

V.M. Skachkov, L.A. Pasechnik, I.S. Medyankina, N.A. Sabirzyanov

The Institute of Solid State Chemistry of the Ural Branch of RAS

DOI: 10.26456/pcascnn/2021.13.392

Original article

Abstract: The article discusses the possibility of regulating the properties of diffusion-hardening solder based on low-melted gallium-tin, gallium-indium-tin, gallium-tin-zinc alloys and a solid component consisting of a copper-tin alloy powder by introducing a mixture of inert powders of metallic titanium and molybdenum after the heat treatment at various temperatures. The microhardness and thermal stability of composite diffusion-hardening solders are evaluated. It is shown that the heat treatment at higher temperatures contributes to the transition of the solder to an equilibrium state, while a sharp increase in hardness occurs. The phases formed as a result of diffusion hardening were determined by the method of X-ray phase analysis. It is shown that at different processing temperatures, different phases are formed – nanoscale intermetallic compounds. Due to small additives of fillers that are inert or weakly interacting with gallium, but are well wetted by it, the characteristics of the diffusion-hardening solder are significantly improved.

Keywords: composite diffusion-hardening solders, metal powder, properties, microhardness, differential thermal analysis

  • Vladimir M. Skachkov – Ph. D., Senior Researcher, Laboratory of Heterogeneous Processes, The Institute of Solid State Chemistry of the Ural Branch of RAS
  • Liliya A. Pasechnik – Ph. D., Leading Researcher, Laboratory of Heterogeneous Processes, The Institute of Solid State Chemistry of the Ural Branch of RAS
  • Irina S. Medyankina – postgraduate student, Junior Researcher, Laboratory of Heterogeneous Processes, The Institute of Solid State Chemistry of the Ural Branch of RAS
  • Nail A. Sabirzyanov – Dr. Sc., Chief Researcher, Laboratory of Heterogeneous Processes, The Institute of Solid State Chemistry of the Ural Branch of RAS

Reference:

Skachkov, V.M. Study of the properties of diffusion-hardening composite solders modified with a Ti – Mo powder mixture / V.M. Skachkov, L.A. Pasechnik, I.S. Medyankina, N.A. Sabirzyanov // Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials. — 2021. — I. 13. — P. 392-399. DOI: 10.26456/pcascnn/2021.13.392. (In Russian).

Full article (in Russian): download PDF file

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