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# High-temperature thermal conductivity of porous $\mathrmAl_2\mathrmO_3$ nanostructures

Physical Review B, Vol. 70 (Oct 2004), 134201, doi:10.1103/physrevb.70.134201  Key: citeulike:11221938

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### Abstract

The temperature dependence of the thermal conductivity of porous, nanostructured alumina has been measured. It is shown that this dependence can be described with a single parameter, the value of which depends on the intergrain boundary structure and is independent of the grain size and porosity.