Accession Number : ADA135587

Title :   Phase Transformation Study of Cu2S.

Descriptive Note : Interim rept.,


Personal Author(s) : Gardner,J A ; Gaskill,D K ; Hirscher,M ; Jaeger,H ; Krane,K S

PDF Url : ADA135587

Report Date : 01 Sep 1983

Pagination or Media Count : 11

Abstract : The phase transformations of crystalline Cu2S in the temperature range 50 C to 600 C have been studied through electric quadrupole interactions studied through electric quadrupole interactions of 111Cd impurities observed by time-differential perturbed angular correlations. The Cd is subject to no discernable quadrupolar interaction in the cubic phase above 430 C. In the hexagonal phase between approximately 103 C and 430 C, a single-site, weakly temperature dependent, axially symmetric quadrupolar interaction is found. At lower temperature, the structure is complex with a number of different sites. These data were taken with a microcomputer-controlled TDPAC spectrometer with logical steering that allows a standard 4-detector spectrometer to collect simultaneously 12 channels of data. (Author)

Descriptors :   *Copper sulfides, *Phase transformations, Crystal structure, Transition temperature, Range(Extremes), Emission spectra, Phase studies

Subject Categories : Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE