Uranium Oxide Phase Equilibrium Systems: IV, UO 2 –ThO 2
UO 2 and ThO 2 form a continuous series of solid solutions with the solidus‐liquidus extended from 2875°C. for UO 2 to above 3200°C. for ThO 2 .
Materials Literature
文献浏览
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
The Polymorphism of Cordierite
During the course of a broader investigation on the cordierite‐spodumene join in the system Li 2 O–MgO–Al 2 O 3 –SiO 2 , a clearer picture of the relationships between the various reported polymorphs of cordierite has been developed. Three forms of cordierite have been recognized.*α‐Cordierite is the stable high‐tempe…
The Molecular Structure of Polyethylene. V. The Effect of Chain Branching and Molecular Weight on Physical Properties1
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Molecular Structure of Polyethylene. V. The Effect of Chain Branching and Molecular Weight on Physical Properties1C. A. Sperati, W. A. Franta, and H. W. Starkweather Jr.Cite this: J. Am. Chem. Soc. 1953, 75, 24, 6127–6133Publication Date (Print):December 1, 1953Publicati…
New Optical Glasses with Good Transparency in the Infrared*
Optical glasses were produced using arsenic trisulfide as a network former and different sulfides as network modifiers. These glasses transmit infrared up to 12–13 microns in thicknesses useful for optical purposes. The transmission of glassy selenium was determined up to 21 microns and a few composite selenium glasse…
Self-diffusion of Cations in and through Sulfonated Polystyrene Cation-exchange Polymers1
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSelf-diffusion of Cations in and through Sulfonated Polystyrene Cation-exchange Polymers1G. E. Boyd and B. A. SoldanoCite this: J. Am. Chem. Soc. 1953, 75, 24, 6091–6099Publication Date (Print):December 1, 1953Publication History Published online1 May 2002Published inissue 1…
The Molecular Structure of Polyethylene. I. Chain Branching in Polyethylene during Polymerization1
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Molecular Structure of Polyethylene. I. Chain Branching in Polyethylene during Polymerization1M. J. RoedelCite this: J. Am. Chem. Soc. 1953, 75, 24, 6110–6112Publication Date (Print):December 1, 1953Publication History Published online1 May 2002Published inissue 1 Decemb…
Métodos normalizados A.S.T.M. para el ensayo de cementos. Métodos normalizados de la A.S.T.M. para el ensayo de la finura del cemento portland
No disponible
Métodos normalizados A.S.T.M. para el ensayo de cementos. Método normalizado A.S.T.M. para el ensayo de la expansión en autoclave del cemento portland
No disponible
Standard method for test for soundness of hydraulic cement-over boiling water (pat test)
No disponible
Standard methods of sampling hydraulic cement
No disponible
Standard methods of chemical analysis of portland cement
No disponible
Can the rate of wash load be predicted from the bed‐load function?
There exist two types of sediment load, one that bears a certain relationship with the discharge (bed‐material load), and the other which does not (wash load). The result of flume study indicates that the transport rate of wash load, just as that of the bed‐material load, can be calculated according to the Einstein be…
Influence of Electric and Magnetic Fields on Angular Correlations
The theory of the influence on angular correlations of perturbing interactions in the intermediate state is reformulated to allow the description of the effects of time-dependent as well as of static perturbations. For static interactions of the nuclear electric quadrupole moment with crystalline fields of axial symme…
Structure analysis of single crystals by electron diffraction. III. Modification of alumina
An electron-diffraction study of the oxide films formed by heating aluminium foil in air on metal grid supports has revealed the occurrence of a number of new phases arbitrarily designated the h,/~, v, ~ and ~' phases. Except for the h-phase, all these phases may be indexed in terms of hexagonal unit cells with a ~ 5…
The thermal conductivity of diamond at low temperatures
Abstract The thermal conductivity of a type I diamond has been measured between 2° K and room temperature. Above 100° K the temperature variation of conductivity accords with Peierls’s theory of Umklapp processes. To account for the results at the lowest temperatures it is necessary to assume that some specular reflex…
Notizen: Über Darstellung und Eigenschaften von Calciumaluminiumhydrid Ca(AlH4)2
Calciumaluminiumhydrid wird durch Umsetzung von Aluminiumchlorid und Calciumhydrid in Tetrahydrofuran dargestellt. Das aus der Losung gewonnene Festprodukt enthalt auch in trockenem Zustand noch 40—50% Tetrahydrofuran und ist in seinen Eigenschaften dem Lithiumaluminiumhydrid weitgehend ähnlich.
Experiments with an Alkali Swelling-Centrifuge Test Applied to Cotton Fiber
A quantitative technique has been developed in which a weighed sample of cotton fiber is swollen in sodium hydroxide, centrifuged to remove liquid from between the fibers, and re weighed to determine its percentage increase in weight, the latter quantity being designated here as the fiber's "alkali-centrifuge value."…
The Infrared Spectrum of Brucite [Mg(OH)_2]*
The infrared spectrum of single crystals of brucite [Mg(OH)2] has been examined under high resolving power between 2 and 3μ. It contains at least 16 bands most of which are shown to be OH stretching frequencies and which exhibit a variety of polarization properties. It follows that the unit cell of brucite must be muc…
The Stability Constants of Cadmium Chloride Complexes: Variation with Temperature and Ionic Strength1
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Stability Constants of Cadmium Chloride Complexes: Variation with Temperature and Ionic Strength1Cecil E. Vanderzee and Harold J. Dawson Jr.Cite this: J. Am. Chem. Soc. 1953, 75, 22, 5659–5663Publication Date (Print):November 1, 1953Publication History Published online1…
Mechanism of the crystallization of high polymers
Abstract In this article a conception of the mechanism of crystallization is given, on the basis of which, it is suggested the origin of spherulites might be explained. A tentative explanation of several related phenomena is based on the new concept. Crystallites are conceived to be small collections of strongly orien…