Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials
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Change in properties of diffusion-hardening solder in dependence on the composition of the liquid metal component

V.M. Skachkov

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

DOI: 10.26456/pcascnn/2021.13.788

Original article

Abstract: The article discusses the change in the properties of diffusion-hardening solder in dependence on the composition of the liquid metal component based on low-melting gallium alloys: gallium-tin, gallium-indium-tin and gallium-tin-zinc when interacting with the Spherical copper-tin alloy powder (SCTAP5) subjected to low-temperature (125°С) and high-temperature (500°С) heat treatment. The mechanical properties were evaluated by measuring the microhardness, and the thermal properties were studied by differential thermal analysis. Heat treatment at high temperatures promotes the transition of the solder to an equilibrium state, with a significant increase in hardness. The thermal effects of heat treatment of diffusion-hardening solders are calculated and compared. The phases formed as a result of hardening are determined by X-ray phase analysis. It is shown that different phases and nanoscale intermetallic compounds are formed at different processing temperatures. The improvement of the mechanical properties of diffusion-hardening solder in the presence of zinc dissolved in a gallium liquid alloy has been experimentally proved.

Keywords: composite diffusion-hardening solders, exothermic effects, properties, microhardness, differential thermal analysis, X-ray phase analysis

  • Vladimir M. Skachkov – Ph. D., Senior Researcher, Laboratory of Heterogeneous Processes, The Institute of Solid State Chemistry of the Ural Branch of RAS

Reference:

Skachkov, V.M. Change in properties of diffusion-hardening solder in dependence on the composition of the liquid metal component / V.M. Skachkov // Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials. – Tver: TSU, 2021. — I. 13. — P. 788-795. DOI: 10.26456/pcascnn/2021.13.788. (In Russian).

Full article (in Russian): download PDF file

References:

1. Yatsenko S.Р., Pasechnik L.A., Skachkov V.M., Rubinshtein G.V. Gallii: Tehnologii polucheniy I primenenie zidkih splavov [Technologies for the production and application of liquid alloys]. Moscow, RAS Publ., 2020, 344 p. (In Russian).
2. Yatsenko S.Р. Tverdeiutschaiy pasta [Hardening paste], Encyclopedia of inorganic materials. Kiev, Glavnaya redaktsiya Ukrainskoj Sovetskoj Entsiklopedii Publ., 1977, vol. 2, pp. 499-500. (In Russian).
3. Hong S.-J., Suryanarayana C. Mechanism of low-temperature θ–CuGa2 phase formation in Cu–Ga a alloys by mechanical alloying, Journal of Applied Physics, 2004, vol. 96, issue 11, pp. 6120-6126. DOI: 10.1063/1.1808243.
4. Yatsenko S.Р. Gallii. Vzaimodeistvie s metallami [Gallium. Interaction with metals]. Moscow, Nauka Publ., 1974, 220 p. (In Russian).
5. Jendrzejczyk-Handzlik D., Handzlik P. Enthalpies of mixing of liquid Ga–In and Cu–Ga–In alloys, Journal of Molecular Liquids, 2019, vol. 293, art. no. 111543, 12 p.
6. Yatsenko S.Р. Indii. Svoistva i primenenie [indium. Properties and application]. Moscow, Nauka Publ., 1987, 256 p. (In Russian).
7. Poroshok splava med'-olovo sfericheskoi formy. Tekhnicheskie usloviya [Spherical copper-tin alloy powder. Specifications]. Specifications RF, no. 48-1318-03-89, 1989. (In Russian).
8. Shubin A.B., Ignatieva E.V., Ignatiev I.E. Poluchenie metallicheskikh kompozitsij iz smesej med'- soderzhashchego poroshka i gallievogo rasplava: opredelenie optimal'nykh parametrov vibroobrabotki [Producing of the metallic compositions from the mixes of copper-containing powders and gallium melts: determination of optimum vibration treatment parameters], Butlerovskie soobtscheniy [Butlerov Communications], 2016, vol. 45, no. 3, pp. 116-121. (In Russian).
9. Powder Diffraction File JCPDS-ICDD PDF-2 (Set 1-47). (Release, 2016). Available at: www.url: https://www.icdd.com/pdf-2 (accessed 15.06.2021).
10. Zernitsa D.A., Shepelevich V.G. Formirovanie struktury bystrozatverdevshej fol'gi evtekticheskogo splava Sn–8,8 mas.% Zn [The structure formation of rapidly solidified foil of the eutectic alloy Sn–8,8 wt. % Zn ], Fiziko-khimicheskie aspekty izucheniya klasterov, nanostruktur i nanomaterialov [Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials], 2020, issue 12, pp. 601-608. DOI: 10.26456/pcascnn/2020.12.601. (In Russian).
11. Kazakov V.S. Razrabotka gallievykh past-pripoev dlya nizkotemperaturnoj pajki mednykh i titanovykh splavov s keramikoj [Development of gallium pastes-solders for low-temperature soldering of copper and titanium alloys with ceramics], Cand. tech. sci. diss. Abstr. Krasnoyarsk, SFU Publ., 2007, 43 p. (In Russian).
12. Speyer R.F. Thermal Analysis of Materials. New York, Marcel Dekker Publ., 1994, 298 p.

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