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Powder Metallurgy and Metal Ceramics

, Volume 33, Issue 11–12, pp 584–587 | Cite as

Reaction of rare-earth metals with boron and aluminum

  • S. I. Mikhalenko
  • N. F. Chaban
  • Yu. B. Kuz'ma
Investigation Methods and Properties of Powder Materials

Abstract

We have used x-ray phase analysis to establish the phase equilibria at 600°C for the systems Gd-Al-B, Tb-Al-B, and Ho-Al-B (the boron-rich sites have not yet been studied). We determined the crystalline structure of the new borides HoAlB4 and ErAlB4 (space group Pbam, YCrB4 type, a=59283(7), b=1.1553(1), c=0.35306(5) mm for HoAlB4 and a=0.59955(9), b=1.1487(2), c=0.35284(8) nm for ErAlB4). We synthesized the compound Tm1−xAl1−yB14 with MgAlB14 type structure (space group Imma, a=0.5826(2), b=1.0380(2), c=0.8176(2) nm) by the method of crystallization from an aluminum melt.

Keywords

Aluminum Crystallization Boron Phase Equilibrium Crystalline Structure 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Publishing Corporation 1995

Authors and Affiliations

  • S. I. Mikhalenko
  • N. F. Chaban
  • Yu. B. Kuz'ma

There are no affiliations available

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