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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Polymerization of Monosilicic AcidG. B. AlexanderCite this: J. Am. Chem. Soc. 1954, 76, 8, 2094–2096Publication Date (Print):April 1, 1954Publication History Published online1 May 2002Published inissue 1 April 1954https://doi.org/10.1021/ja01637a017RIGHTS & PERMISSIONSAr…
Experimental determinations of the ionic conductivity of impure or "doped" alkali halide crystals are often used to find the mobility of the cation vacancies. For this purpose it is important to know to what extent the vacancies and the impurity ions have associated together to form neutral "complexes," which do not c…
The lattice parameters of the isomorphous compounds MnAs, MnSb and MnBi have been measured over a temperature range which includes the temperatures at which certain magnetic transitions occur. Characteristic changes develop near the magnetic transition temperatures and are of two kinds: ( a ) discontinuous changes of…
The behavior of an air-fiber mixture is discussed. Measurements of the effective dielectric constant and power factor of yarns wound between cones have been made for a number of materials at various densities of packing, at frequencies between 50 c./sec. and 200 kc./sec., and at different moisture conditions. The resu…
In this final paper of a series on viscosity in the system CaO—MgO‐Al 2 O 3 SiO 2 data are presented for melts containing 60 and 65% SiO 2 . There also are diagrammatic presentations of the systems of isokoms at intervals on planes parallel to the zero alumina, zero lime, and zero magnesia faces of the tetrahedron, th…
(1954). The transition metals and their alloys. Advances in Physics: Vol. 3, No. 10, pp. 149-242.
The existence of 'fl-W' as a modification of tungsten is contradicted by the low density of the phase and by its decomposition into W and WO,. at about 700C. It is assumed that 'fl-W' is a metallic tungsten oxide with the probable ideal formula W30. The unit cell would then contain 6 W+20 atoms distributed at random o…
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStandard X-Ray Diffraction Powder Patterns.Ludo K. FrevelCite this: J. Am. Chem. Soc. 1954, 76, 7, 2031Publication Date (Print):April 1, 1954Publication History Published online1 May 2002Published inissue 1 April 1954https://pubs.acs.org/doi/10.1021/ja01636a108https://doi.or…
The integro-differential equation for the growth of a vapor bubble in a superheated liquid is formulated and discussed. It is shown that two distinct time domains exist: one, of the order of 10−4 second, during which the effect of the hydrodynamic forces may be an important factor in the growth of the bubble, and anot…
The growth of a vapor bubble in a superheated liquid is controlled by three factors: the inertia of the liquid, the surface tension, and the vapor pressure. As the bubble grows, evaporation takes place at the bubble boundary, and the temperature and vapor pressure in the bubble are thereby decreased. The heat inflow r…