Liquid tellurides: Structure and properties

Conference · Thu Oct 01 04:00:00 EDT 1992

OSTI ID:10102552

Saboungi, M L; Fortner, J; Richardson, J W ^[1]; Petric, A ^[2]; Doyle, M ^[3]; Enderby, J E ^[4]

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1. Argonne National Lab., IL (United States)
2. McMaster Univ., Hamilton, ON (Canada)
3. Northwestern Univ., Evanston, IL (United States). Div. of Educational Programs
4. Bristol Univ. (United Kingdom). H.H. Wills Physics Lab.

In this paper a review of the thermodynamic, electrical and structural properties of liquid alkali-tellurium alloys is presented with a special emphasis on the interplay between these properties. The thermodynamic properties indicate ordering of the solutions at compositions corresponding to about 12, 50, and 67 atom% of alkali atoms. The electrical conductivity and thermopower data confirm that these liquids are true semiconductors. The neutron diffraction patterns coupled with the above information indicate that in the case of liquid K{sub 0.12}Te{sub 0.88} the measured structure is dominated by the Te-Te contribution, and is remarkably similar to that of pure liquid tellurium, while the equiatomic alloy K{sub 0.50}Te{sub 0.50} is shown to contain mostly Te pairs which are identified with Zintl ions, Te{sub 2}{sup 2{minus}}.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 10102552
• Report Number(s): ANL/MSD/CP--75815; CONF-9208177--1; ON: DE93002909
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360602
360606
ELECTRIC CONDUCTIVITY
ION PAIRS
NEUTRON DIFFRACTION
PHYSICAL PROPERTIES
POTASSIUM TELLURIDES
SODIUM TELLURIDES
STRUCTURE AND PHASE STUDIES
STRUCTURE FACTORS
THERMODYNAMIC PROPERTIES
THERMOELECTRIC PROPERTIES