Materials Literature
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The effect of additives on the properties of lead titanate was investigated. The additives employed were selected on the basis of potential solid solution or liquid formation with PbTiO 3 during sintering. Most of these additives aided sintering and produced dense polycrystalline specimens of PbTiO 3 with densities in…
A new method, based on second-order elasticity, has been developed to predict departures from Vegard's law in binary alloy systems in which the end members have similar outer-electronic structures. This method has been found to be successful in predicting the correct sign and order of magnitude of the deviation in 28…
Abstract 1) When calcium carbonate was formed in the laboratory from the calcium bicarbonate solution through which carbon dioxide gas had not been bubbled during the process of the calcium carbonate formation: a) Only calcite was formed at a temperature below 25°C; aragonite was formed above 25°C, and vaterite was fo…
The sessile‐drop method for the evaluation of wetting is discussed in terms of forces acting on the liquid drop. For acute angles, or wetting of the solid, the driving force is the lowering of the solid‐gas surface energy by the liquid. Contact angles of approximately 25° and less, obtained under appropriate condition…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTON THE LOW-FREQUENCY DIELECTRIC DISPERSION OF COLLOIDAL PARTICLES IN ELECTROLYTE SOLUTION1H. P. Schwan, G. Schwarz, J. Maczuk, and H. PaulyCite this: J. Phys. Chem. 1962, 66, 12, 2626–2635Publication Date (Print):December 1, 1962Publication History Published online1 May 2002…
A theory is derived for impurity-controlled dislocation mobility and the resultant temperature variation of the flow stress of lithium fluoride. The theory is suitable to crystals in which the hardening is primarily due to tetragonal lattice distortions such as result from the introduction of magnesium into lithium fl…
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The applied electric field at the onset of polarization reversal during switching of a triglycine sulphate single crystal with a sinusoidal applied field has been measured as a function of crystal thickness. In contrast to the sinusoidal coercive field measurements of Pulvari and Kuebler (1958), this field is frequenc…
Abstract The author has shown the effect of various inorganic ions on the polymorphic crystallization of calcium carbonate from a bicarbonate solution. No definite conclusion regarding the mechanism to give calcite, aragonite or vaterite can yet be made, but these data help to give a pattern of the influence of inorga…