Composition and physical properties of the most germanium-rich germanide of manganese

H. Kaibe, T. Nemoto, Tetsuya Sato, M. Sakata, I. Nishida

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Two parent alloys with compositions Mn11Ge8 and Mn3Ge2 were prepared by melting at 1273 K for 3.6 × 103 s (1 h) in an argon atmosphere. The alloys were then annealed at 953 K for 9.0 × 105 s (250 h) in an evacuated quartz tube. The annealed Mn11Ge8 alloy is not single phase but a two-phase with free germanium. In order to establish the composition of the most germanium-rich germanide, using the two parent alloys, sintered MnGex with the compositions in the range 0.664 ≤ x ≤ 0.753 were prepared by a powder metallurgical technique. The apparent density, resistivity and magnetization of MnGex changed drastically over the very narrow range 0.700 ≤ x ≤ 0.706. From the results of X-ray integrated diffraction intensity measurements and quantitative analyses by means of electron probe micro-analysis and pycnometric density, it is confirmed that the most germanium-rich germanide of manganese is a line compound Mn44Ge31.

Original languageEnglish
Pages (from-to)303-312
Number of pages10
JournalJournal of the Less-Common Metals
Volume138
Issue number2
DOIs
Publication statusPublished - 1988 Mar 15

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Germanium
Manganese
Physical properties
Chemical analysis
Quartz
Argon
Electron probe microanalysis
Powders
Magnetization
Melting
Diffraction
X rays

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Composition and physical properties of the most germanium-rich germanide of manganese. / Kaibe, H.; Nemoto, T.; Sato, Tetsuya; Sakata, M.; Nishida, I.

In: Journal of the Less-Common Metals, Vol. 138, No. 2, 15.03.1988, p. 303-312.

Research output: Contribution to journalArticle

Kaibe, H. ; Nemoto, T. ; Sato, Tetsuya ; Sakata, M. ; Nishida, I. / Composition and physical properties of the most germanium-rich germanide of manganese. In: Journal of the Less-Common Metals. 1988 ; Vol. 138, No. 2. pp. 303-312.
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