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El yeso poroso

G. Frenkel1949-11-01Materiales de Construccion

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An Investigation of the Mechanical Properties of Materials at very High Rates of Loading

H. Kolsky1949-11-01OpenAlex

A method of determining the stress-strain relation of materials when stresses are applied for times of the order of 20 microseconds is described. The apparatus employed was a modification of the Hopkinson pressure bar, and detonators were used to produce large transient stresses. Thin specimens of rubbers, plastics an…

Laser-Plasma Interactions and DiagnosticsHigh-Velocity Impact and Material BehaviorNuclear Physics and Applications

The Dielectric Properties of Barium Titanate at Low Temperatures

R. F. Blunt、W. F. Love1949-10-15Physical Review

The complex dielectric constatn of ceramic barium titanate has been measured as a function of temperature from 300\ifmmode^\circ\else\textdegree\fi{}K down to 2.8\ifmmode^\circ\else\textdegree\fi{}K. The large value of the slope of the real part of the dielectric constant, ${K}^{\ensuremath{'}}$, versus temperature cu…

Ferroelectric and Piezoelectric MaterialsMicrowave Dielectric Ceramics SynthesisDielectric properties of ceramics