Mechanical properties and microstructure of sintered PVC powder. I. Elastic properties and porosity

Autor:	E. W. Behrens, A. M. Butto
Rok vydání:	1977
Předmět:	Materials science General Physics and Astronomy chemistry.chemical_element Modulus Physics::Classical Physics Microstructure Shear modulus Shear (sheet metal) chemistry Aluminium Condensed Matter::Superconductivity Torsion pendulum clock Cohesion (geology) Composite material Porosity
Zdroj:	Journal of Applied Physics. 48:1899-1901
ISSN:	1089-7550 0021-8979
DOI:	10.1063/1.323946
Popis:	Torsion‐pendulum measurements were carried out with a variously sintered PVC powder of two different DOP‐plasticizer concentrations. Aluminum foils were used as substrates for supporting the fragile specimens in the torsion pendulum. Based on a recently developed analysis, storage and loss shear moduli of the sintered powders were calculated from the experimental torsional rigidities of the laminated test specimens for a wide range of porosities and temperatures. The unrelaxed (glassy) shear modulus correlated well with density. After accounting theoretically for the porosity effect on the modulus, the latter was used for characterizing the internal cohesion of the material as it varies with the degree of sinter.
Databáze:	OpenAIRE
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