ISOTHERMAL SECTION AT 1070 K OF THE PHASE-EQUILIBRIUM DIAGRAMS FOR (TB, DY, HO)-CR-B SYSTEMS

Authors
GUBICH IB CHABAN NF
Citation
Ib. Gubich et Nf. Chaban, ISOTHERMAL SECTION AT 1070 K OF THE PHASE-EQUILIBRIUM DIAGRAMS FOR (TB, DY, HO)-CR-B SYSTEMS, Powder metallurgy and metal ceramics, 32(5), 1993, pp. 417-419
Citations number
6
Categorie Soggetti
Material Science, Ceramics","Metallurgy & Mining
Journal title
Powder metallurgy and metal ceramics → ACNP
ISSN journal
10681302
Volume
32
Issue
5
Year of publication
1993
Pages
417 - 419
Database
ISI
SICI code
1068-1302(1993)32:5<417:ISA1KO>2.0.ZU;2-2
Abstract
The systems {Tb, Dy, Ho)-Cr-B have been studied by means of x-ray anal ysis. isothermal sections at 1070 K have ben plotted. Previously known borides of the YCrB4 type structure (space group Pbam) have been conf irmed: TbCrB4, DyCrB4, and HoCrB4. A new compound Ho3CrB7 with a Er3Cr B7 type structure (space group Cmcm): a = 0.3422 (1), b = 1.5714 (5), c = 0.9304 (4) nm, R = 0.12 has been obtained for the first time. The coordinates of the atoms and their temperature parameters are refined.