V(P.T)-Measurements on polycarbonate and their analytical description in the glassy state

Autor:	W. R. Pechhold, W. Dollhopf, M. J. Strauss
Rok vydání:	1992
Předmět:	Equation of state Bulk modulus Materials science Product (mathematics) visual_art visual_art.visual_art_medium Thermodynamics State (functional analysis) Polycarbonate Condensed Matter Physics Glass transition Thermal expansion
Zdroj:	High Pressure Research. 8:409-411
ISSN:	1477-2299 0895-7959
DOI:	10.1080/08957959108260691
Popis:	We present an analytical equation of state (EOS) for solids using the bulk Gruneisenparameter γ. This EOS is applied to experimental V(p. T)-data of polycarbonate below the glass temperature, measured in a piston-cylinder apparatus up to 300 MPa. Bulk modulus K, the product K · α (α = thermal expansion coefficient) and the Gruneisenparameter γ are determined directly from the data as well as from a fit of the equation of state V(p.T) to the data. The fit with our EOS is better than the one with the empirical Tait-equation which is often used for polymeric materials.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4dd42993b140e967a1a113176146fac9 https://doi.org/10.1080/08957959108260691 Zobrazit plný text záznamu