Miscibility gaps and spinodal decomposition in III/V quaternary alloys of the type A/sub x/B/sub y/C/sub 1-x/-yD

Journal Article · Sat Jan 01 04:00:00 EST 1983 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.331719· OSTI ID:6542962

Stringfellow, G B

Thermodynamic concepts have been developed for the calculation of solid-phase miscibility gaps and spinodal decomposition in quaternary alloys of the type A/sub x/B/sub y/C/sub 1-x/-yD. These concepts have been applied to the analysis of III/V quaternary alloys using the delta-lattice-parameter (DLP) solution model. In addition, the effects of coherency strain energy have been included in the calculation. Results are presented for the systems Al/sub x/Ga/sub y/In/sub 1-x/-yP, Al/sub x/Ga/sub y/In/sub 1-x/-yAs, InP/sub x/As/sub y/Sb/sub 1-x/-y, and GaP/sub x/As/sub y/Sb/sub 1-x/-y. Even though these systems all have miscibility gaps, they are shown to be stable against spinodal decomposition at all temperatures due to the elastic strain energy inherent in coherent decomposition of single crystalline alloys.

• Research Organization: University of Utah, Salt Lake City, Utah 84112
• DOE Contract Number: AT03-81ER10934
• OSTI ID: 6542962
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 54:1; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
ALLOY SYSTEMS
CHEMICAL REACTIONS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTALS
DATA
DECOMPOSITION
ELASTICITY
ENERGY
INFORMATION
MATHEMATICAL MODELS
MECHANICAL PROPERTIES
MONOCRYSTALS
NUMERICAL DATA
PARAMETRIC ANALYSIS
QUATERNARY ALLOY SYSTEMS
SOLIDS
STABILITY
STRAINS
TENSILE PROPERTIES
THEORETICAL DATA