Thermal properties of the optically transparent pore-free nanostructured yttria-stabilized zirconia

Journal Article · Tue Dec 01 00:00:00 EST 2009 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.3264613· OSTI ID:21359373

Ghosh, S; Teweldebrhan, D ^[1]; Morales, J R; Garay, J E ^[2]; Balandin, A A ^[1]

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1. Nano-Device Laboratory, Department of Electrical Engineering, University of California-Riverside, Riverside, California 92521 (United States)
2. Department of Mechanical Engineering, University of California-Riverside, Riverside, California 92521 (United States)

The authors report results of investigation of thermal conductivity of nanocrystalline yttria-stabilized zirconia. The optically transparent pore-free bulk samples were prepared via the spark plasma sintering process to ensure homogeneity. Thermal conductivity K was measured by two different techniques. It was found that the pore-free nanostructured bulk zirconia is an excellent thermal insulator with the room-temperature Kapprox1.7-2.0 W/m K. It was also shown that the 'phonon-hopping' model can accurately describe specifics of K dependence on temperature and the grain size. The obtained results are important for optimization of zirconia properties for specific applications in advanced electronics and coatings.

• OSTI ID: 21359373
• Journal Information: Journal of Applied Physics, Vol. 106, Issue 11; Other Information: DOI: 10.1063/1.3264613; (c) 2009 American Institute of Physics; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COATINGS
CRYSTALS
GRAIN SIZE
NANOSTRUCTURES
OPACITY
PHONONS
SINTERING
TEMPERATURE RANGE 0273-0400 K
THERMAL CONDUCTIVITY
YTTRIUM OXIDES
ZIRCONIUM OXIDES
CHALCOGENIDES
FABRICATION
MICROSTRUCTURE
OPTICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
QUASI PARTICLES
SIZE
TEMPERATURE RANGE
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
ZIRCONIUM COMPOUNDS