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Thermal Conductivity of Alumina-reinforced Zirconia Composites10-mol% yttria-stabilized zirconia (10SZ) - alumina composites containing 0-30 mol% alumina were fabricated by hot pressing at 1500 C in vacuum. Thermal conductivity was determined at various temperatures using a steady-state laser heat flux technique. Thermal conductivity of the composites increased with increase in alumina content. Composites containing 0, 5, and 10-mol% alumina did not show any change in thermal conductivity with temperature. However, those containing 20 and 30-mol% alumina showed a decrease in thermal conductivity with increase in temperature. The measured values of thermal conductivity were in good agreement with those calculated from the Maxwell-Eucken model where one phase is uniformly dispersed within a second major continuous phase.
Document ID
20050203677
Acquisition Source
Headquarters
Document Type
Conference Paper
Authors
Bansal, Narottam P.
(NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2005
Subject Category
Composite Materials
Meeting Information
Meeting: 107th Annual Meeting and Exposition of the American Ceramic Society
Location: Baltimore, MD
Country: United States
Start Date: April 10, 2005
End Date: April 13, 2005
Sponsors: American Ceramic Society
Funding Number(s)
OTHER: 22-066-20-06
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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