This article is cited in 11 papers

Thermal properties

Capacity and thermal conductivity of a nanocomposite chrysolite asbestos–KDP (KH$_2$PO$_4$)

Yu. A. Kumzerov^a, N. F. Kartenko^a, L. S. Parfen'eva^a, I. A. Smirnov^a, A. V. Fokin^a, D. Wlosewicz^b, H. Misiorek^b, A. Jezowski<sup>b

a</sup> Ioffe Institute, St. Petersburg
^b Trzebiatowski Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Wroclaw, Poland

Abstract: A nanocomposite chrysotile–KDP (KH$_2$PO$_4$) was prepared. KDP was introduced into empty nanochannels of chrysotile asbestos with diameters of $\sim$5 nm. Thermal conductivity $\varkappa$ and heat capacity at a constant pressure $C_p$ of the samples of chrysotile asbestos and nanocomposite chrysotile asbestos–KDP were measured in a temperature range of 80–300 K. Based on the analysis of the behavior of temperature dependences $\varkappa(T)$ and $C_p(T)$ of the composite, temperatures of the ferroelectric transition $T_F$ for KDP in nanochannels of chrysotile asbestos were determined. It turned out to be equal to $\sim$250 K at $T_F$ $\sim$122 K for massive KDP samples.

 English version: Physics of the Solid State, 2011, 53:5, 1099–1103

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