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Author Wei, Kaya ♦ Martin, Joshua ♦ Maruyama, Satofumi ♦ Mori, Takao ♦ Nolas, George S.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY ♦ CHALCOGENIDES ♦ CRYSTAL STRUCTURE ♦ HOT PRESSING ♦ SPECIFIC HEAT ♦ SYNTHESIS ♦ TEMPERATURE DEPENDENCE ♦ THERMAL CONDUCTIVITY
Abstract The madocite Pb{sub 17}(Sb{sub 0.75}As{sub 0.25}){sub 16}S{sub 41} was synthesized by reaction of binary compounds and densified using hot pressing. The optical band-gap, thermal stability, and temperature-dependent heat capacity and thermal conductivity are reported for the first time. The thermal properties are evaluated using the Debye model. The findings in this work lay the foundation for a more detailed understanding of the physical properties of this material, and is part of the continuing effort in investigating materials with new compositions that possess low thermal conductivity for potential low-cost thermal barrier coating and energy-related applications. - Graphical abstract: The report describes the synthesis and physical properties characterization of Pb{sub 17}(Sb{sub 0.75}As{sub 0.25}){sub 16}S{sub 41}, a quaternary chalcogenide with the madocite crystal structure that possesses a low thermal conductivity, for the first time. The compositions was synthesized by reaction of binary compounds and densified using hot pressing. Optical band-gap, thermal stability, and temperature-dependent heat capacity measurements are also discussed. - Highlights: • Pb{sub 17}(Sb{sub 0.75}As{sub 0.25}){sub 16}S{sub 41} was synthesized by reaction of binary compounds and densified using hot pressing. • We report the characterizations of this quaternary chalcogenide that possesses a low thermal conductivity for the first time. • The optical band-gap, thermal stability, and temperature-dependent heat capacity are also investigated for the first time.
ISSN 00224596
Educational Use Research
Learning Resource Type Article
Publisher Date 2017-07-15
Publisher Place United States
Journal Journal of Solid State Chemistry
Volume Number 251


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