The Paton Welding Journal, 2023, №05



2023 №05 (06)

DOI of Article 10.37434/tpwj2023.05.07

2023 №05 (08)

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The Paton Welding Journal, 2023, #5, 42-47 pages

3D technology of growing single-crystal ingots in the form of hollow tungsten cylinders

Yu.O. Nykytenko, V.O. Shapovalov, V.V. Yakusha, O.M. Gnizdylo, O.V. Karuskevych

E.O. Paton Electric Welding Institute of the NAS of Ukraine. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev.ua

Abstract
The paper presents the results of further development of the technology of growing superlarge single-crystals of refractory metals, developed at PWI of the NAS of Ukraine. Proceeding from the optimized technology and acquired experience, new generation equipment was manufactured, which allows growing single-crystals of refractory alloys in the form of the body of revolution. Experiments were performed on growing tungsten single-crystals in the form of a hollow cylinder, which can be used to manufacture such a product as a crucible. Technological parameters and energy modes were established, which allowed controlling the thickness of the wall being deposited. An ingot with the deposited wall height of 68 mm, thickness of 20…22 mm and outer diameter of 85 mm was grown as a result of the experiments. 9 Ref., 1 Table, 9 Figures.
Keywords: tungsten, single-crystal growing, hollow body of revolution, crucible, plasma-induction zone melting

Received: 01.03.2023
Accepted: 29.06.2023

References

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