Heat capacity of a white-eucalyptus biocarbon template for SiC/Si ecoceramics

Autor:	Julián Martínez-Fernández, A.R. de Arellano-López, D. Wlosewicz, L. S. Parfen’eva, F. M. Varela-Feria, Andrzej Jeżowski, I. A. Smirnova, H. Misiorek, A. I. Krivchikov, B. I. Smirnov, J. Mucha
Rok vydání:	2006
Předmět:	Diffraction Materials science Solid-state physics Mean free path Phonon Speed of sound Analytical chemistry Crystallite Atmospheric temperature range Condensed Matter Physics Heat capacity Electronic Optical and Magnetic Materials
Zdroj:	Physics of the Solid State. 48:2056-2059
ISSN:	1090-6460 1063-7834
DOI:	10.1134/s1063783406110035
Popis:	The heat capacity Cp of a biocarbon template based on white eucalyptus wood is measured at a constant pressure in the temperature range T = 3.5–300 K. The phonon mean free path l for a white-eucalyptus biocarbon template is calculated from the measured dependence Cp(T) and data available in the literature on the phonon thermal conductivity and velocity of sound. It is established that, in the range 100–300 K, the phonon mean free path l is nearly constant and equal to ∼13 A. This value is close to the smallest size of graphite-like crystallites (∼12 A), which was derived earlier from x-ray diffraction data for a quasi-amorphous biocarbon template.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b2263f9520e042e3a4d953cb1308c02f https://doi.org/10.1134/s1063783406110035 Zobrazit plný text záznamu Full text from SpringerLink