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Title: PSEUDO-BINARY SYSTEMS INVOLVING RARE EARTH LAVES PHASES

Abstract

The phase relations in a number of pseudo-binary systems involving rare earth Laves phases were determined. Complete series of cubic solid-solutions occur in the DyMn/sub 2/HoMn/sub 2/, HoMn/sub 2/-HoFe/sub 2/, DyMn/sub 2/-DyFe/ sub 2/, HoMn/sub 2/-HoAl/ sub 2/, TbMn/sub 2/TbAl/sub 2/, and DyMn/sub 2/-DyAl/ sub 2/ pseudobinary systems. Deviations from linearity in the lattice constants with composition occur in all these systems. Complete series of cubic solidsolutions also exist in the GdAl/sub 2/-ErAl/sub 2/, GdAl/sub 2/-PrAl/sub 2/ , GdAl/sub 2/-NdAl/sub 2/, GdAl/sub 2/-DyAl/sub 2/, TbAl/sub 2/-NdAl/sub 2/, and T bAl/sub 2/-DyAl/sub 2/ systems. For these systems, no deviation from linearity occurs in the lattice constants. For the DyFe/sub 2/-DyAl/sub 2/ and DyCo/sub 2/- DyAl/sub 2/ systems, two new ternary phases, DyFeAl and DyCoAl, form and have the MgZn/sub 2/ structure. Their structures were determined from x-ray powder data only. The electronic state giving rise to the formation of these ternary phases is discussed qualitatively. For the DyMn/sub 2/TmMn/sub 2/ system, the range of composition in which the cubic MgCu/sub 2/ and hexagonal MgZn/sub 2/ structures exist are reported. No complete series of solid solutions or intermediate phases are formed in the DyNi/sub 2/-DyAl/sub 2/ system. (auth)

Authors:
; ;
Publication Date:
Research Org.:
Bell Telephone Labs., Murray Hill, N.J.
OSTI Identifier:
4811637
NSA Number:
NSA-16-025798
Resource Type:
Journal Article
Journal Name:
Phys. and Chem. Solids
Additional Journal Information:
Journal Volume: Vol: 23; Other Information: Orig. Receipt Date: 31-DEC-62
Country of Publication:
Country unknown/Code not available
Language:
English
Subject:
METALS, CERAMICS, AND OTHER MATERIALS; ALUMINUM; COBALT; CONFIGURATION; CONTROL SYSTEMS; DYSPROSIUM; ELECTRONICS; ERBIUM; GADOLINIUM; HOLMIUM; IRON; LATTICES; MAGNESIUM ALLOYS; MANGANESE; PHASE DIAGRAMS; POWDERS; PRASEODYMIUM; RARE EARTHS; SOLID SOLUTIONS; TERBIUM; X RADIATION; ZIRCONIUM ALLOYS

Citation Formats

Wernick, J.H., Haszko, S.E., and Dorsi, D. PSEUDO-BINARY SYSTEMS INVOLVING RARE EARTH LAVES PHASES. Country unknown/Code not available: N. p., 1962. Web. doi:10.1016/0022-3697(62)90514-0.
Wernick, J.H., Haszko, S.E., & Dorsi, D. PSEUDO-BINARY SYSTEMS INVOLVING RARE EARTH LAVES PHASES. Country unknown/Code not available. doi:10.1016/0022-3697(62)90514-0.
Wernick, J.H., Haszko, S.E., and Dorsi, D. Fri . "PSEUDO-BINARY SYSTEMS INVOLVING RARE EARTH LAVES PHASES". Country unknown/Code not available. doi:10.1016/0022-3697(62)90514-0.
@article{osti_4811637,
title = {PSEUDO-BINARY SYSTEMS INVOLVING RARE EARTH LAVES PHASES},
author = {Wernick, J.H. and Haszko, S.E. and Dorsi, D.},
abstractNote = {The phase relations in a number of pseudo-binary systems involving rare earth Laves phases were determined. Complete series of cubic solid-solutions occur in the DyMn/sub 2/HoMn/sub 2/, HoMn/sub 2/-HoFe/sub 2/, DyMn/sub 2/-DyFe/ sub 2/, HoMn/sub 2/-HoAl/ sub 2/, TbMn/sub 2/TbAl/sub 2/, and DyMn/sub 2/-DyAl/ sub 2/ pseudobinary systems. Deviations from linearity in the lattice constants with composition occur in all these systems. Complete series of cubic solidsolutions also exist in the GdAl/sub 2/-ErAl/sub 2/, GdAl/sub 2/-PrAl/sub 2/ , GdAl/sub 2/-NdAl/sub 2/, GdAl/sub 2/-DyAl/sub 2/, TbAl/sub 2/-NdAl/sub 2/, and T bAl/sub 2/-DyAl/sub 2/ systems. For these systems, no deviation from linearity occurs in the lattice constants. For the DyFe/sub 2/-DyAl/sub 2/ and DyCo/sub 2/- DyAl/sub 2/ systems, two new ternary phases, DyFeAl and DyCoAl, form and have the MgZn/sub 2/ structure. Their structures were determined from x-ray powder data only. The electronic state giving rise to the formation of these ternary phases is discussed qualitatively. For the DyMn/sub 2/TmMn/sub 2/ system, the range of composition in which the cubic MgCu/sub 2/ and hexagonal MgZn/sub 2/ structures exist are reported. No complete series of solid solutions or intermediate phases are formed in the DyNi/sub 2/-DyAl/sub 2/ system. (auth)},
doi = {10.1016/0022-3697(62)90514-0},
journal = {Phys. and Chem. Solids},
number = ,
volume = Vol: 23,
place = {Country unknown/Code not available},
year = {1962},
month = {6}
}