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


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.


Aluminum Crystallization Boron Phase Equilibrium Crystalline Structure 
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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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