Spherical monocrystals for X‐ray work obtained by plasma remelting of alloy powder | Zendy

Arnberg L. | Zendy; Westman S. | Zendy

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Spherical monocrystals for X‐ray work obtained by plasma remelting of alloy powder

Author(s) -

Arnberg L.,

Westman S.

Publication year - 1978

Publication title -

journal of applied crystallography

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.429

H-Index - 162

ISSN - 1600-5767

DOI - 10.1107/s0021889878012923

Subject(s) - alloy , materials science , spheres , brittleness , grinding , argon , plasma , jet (fluid) , yield (engineering) , x ray , metallurgy , work (physics) , thermodynamics , chemistry , optics , physics , organic chemistry , quantum mechanics , astronomy

Spherical crystals of alloy phases too hard and brittle for grinding can be obtained by partial remelting and solidification of a powder sample. The alloy powder is blown through an argon‐plasma jet melting the surface material of individual fragments, which solidify again as nearly perfect spheres. The yield is a mixture of different materials in which it is possible, however, after heat treatment to find good single crystals of the original composition. Spherical single crystals of Cu 9 Al 4 have been produced by this method and used for a high‐precision X‐ray investigation described elsewhere.

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