Unusual electrical resistivity behavior of carbon fibers

Autor:	K.J Volin, H.A Goldberg, Ian L. Spain, Ilmar L. Kalnin
Rok vydání:	1983
Předmět:	Materials science Specific heat Electrical resistivity and conductivity Materials Chemistry Heat treated General Chemistry Composite material Condensed Matter Physics Temperature coefficient Elastic modulus Electronic states
Zdroj:	Solid State Communications. 45:817-819
ISSN:	0038-1098
DOI:	10.1016/0038-1098(83)90807-4
Popis:	PAN-based fibers, heat-treated to ≈1300°C having elastic moduli ≈35 Msi (240 GPa), exhibit an unusual maximum in the resistivity at low temperature (≈30 K), and the temperature coefficient of resistance remains positive to 1.5 K. Measurement of resistivity are reported, and the results discussed in terms of models for the electronic states of this disordered material. It is speculated that the behavior is related to anomalies observed in the specific heat of bulk carbons heat treated to similar temperatures.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bc76a399e626bf2d28839ed4ee38d1af https://doi.org/10.1016/0038-1098(83)90807-4 Zobrazit plný text záznamu