Materials Literature
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。
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMixed-valence complexes containing the V2O33+ core. Structure and properties of H[V2O3(pmida)2].cntdot.4H2O and K7[V9O16(bdta)4].cntdot.27H2OJean Pierre Launay, Yves Jeannin, and Maria DaoudiCite this: Inorg. Chem. 1985, 24, 7, 1052–1059Publication Date (Print):March 1, 1985…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMicroporous aluminum oxide films at electrodesCary J. Miller and Marcin MajdaCite this: J. Am. Chem. Soc. 1985, 107, 5, 1419–1420Publication Date (Print):March 1, 1985Publication History Published online1 May 2002Published inissue 1 March 1985https://pubs.acs.org/doi/10.1021…
Crack growth data are presented for soda‐lime glass in various chemical environments. It is shown that the same environments which govern crack growth rates in vitreous silica also do so in soda‐lime glass. The slopes and positions of the crack growth curves in soda‐lime glass are shown to differ from those in vitreou…
We show that physically realistic solutions for nonlinear TM waves guided by thin dielectric films are obtained in the uniaxial approximation for a dielectric constant proportional to the square of the normal-field component and not of the parallel-field component as assumed previously.
Commercial Y 2 O 3 : Eu phosphors, formulated at constant europium content, exhibit under 254 nm excitation plaque‐brightness variations of up to 10%. Several working models are proposed to explain this variation in emission brightness, and their physical implications on the spectral behavior of the Y 2 O 3 : Eu mater…
Abstract The mineralogy of six profiles from the Median Trough of El Salvador has been investigated. Most of these soils have vertic properties and are developed from Quaternary alluvium. The mineralogical evolution of these soils has been influenced by intermittent additions of a readily soluble source of silica and…
The α-modification of (BEDT-TTF)2 I3 undergoes a metal-to-insulator transition at T = 135 K. Application of hydrostatic pressure shifts the transition temperature to lower values. Above 12 kbar semimetallic behavior is observed, but no superconductivity is detected up to a pressure of 17 kbar and temperatures down to…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis, reactivity, and x-ray crystal structure of dichloro(phthalocyaninato)titanium(IV)V. L. Goedken, G. Dessy, C. Ercolani, and V. FaresCite this: Inorg. Chem. 1985, 24, 7, 991–995Publication Date (Print):March 1, 1985Publication History Published online1 May 2002Publi…
Turbulent convection in silicon melts used in the Czochralski crystal‐growth method was found to be effectively suppressed by applying a transverse magnetic field over 2000G. When turbulent convection is suppressed, it was found that the oxygen concentration in the resulting silicon crystals could be precisely control…
Voids in the aluminum metallization of integrated circuits can be created under certain device fabrication conditions. The formation and characteristics of these defects have been studied in detail. It is found that the density and size of the metal voids have a strong functional dependence on the compressive stress o…
Abstract Hydrogenation of polybutadienes with from 8 to nearly 100% vinyl content was used to prepare a series of model copolymers of ethylene and butene‐1 with uniform microstructures and narrow molecular weight distributions. They range from readily crystallizable to completely amorphous, depending on the frequency…
A fully quantum mechanical model of the particle–surface sticking process is developed, and calculations are performed for a variety of atoms, molecules and solids of relevance to the interstellar medium. The sticking coefficient is a sensitive function of the nature of the particle–surface interaction and the lattice…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCatalytic electroreduction of molecular oxygen using iron or cobalt 4,4',4",4'"-tetracarboxyphthalocyanineNagao Kobayashi and Yoshiyuki NishiyamaCite this: J. Phys. Chem. 1985, 89, 7, 1167–1170Publication Date (Print):March 1, 1985Publication History Published online1 May 20…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructure evolution during spinodal decomposition of polymer blendsGert R. StroblCite this: Macromolecules 1985, 18, 3, 558–563Publication Date (Print):March 1, 1985Publication History Published online1 May 2002Published inissue 1 March 1985https://pubs.acs.org/doi/10.1021/m…
An adiabatic scanning calorimeter has been used to investigate the temperature dependence of the enthalpy and the heat capacity near the smectic A (A) to nematic (N) phase transition in mixtures of alkylcyanobiphenyl (nCB) liquid crystals. Mixtures of 8CB + 10 CB with small N-ranges undergo first-order transitions, bu…
Abstract Greenhouse and laboratory experiments were conducted to characterize the K supply and nonexchangeable K release kinetics in calcareous soils. Twelve soils were exhaustively cropped with alfalfa ( Medicago sativa L.) in the greenhouse for 584 d (16 cuttings). Yield, K uptake, and changes in NH 4 OAc exchangeab…
A series of 7-(substituted aryl)-3,5-dihydroxy-6-heptenoic (heptanoic) acids and their lactone derivatives have been prepared and tested for inhibition of 3-hydroxy-3-methylglutaryl-coenzyme A reductase in vitro. A systematic exploration of the structure-activity relationships in this series led to the synthesis of (+…
The glass‐forming region for calcium aluminosilicate glasses has been determined. A number of properties of these glasses (thermal expansion coefficient, glass transformation and dilatometric softening temperature, and refractive index) have been studied. The results of these measurements suggeq that the structures of…
A maximum entropy method (MEM) map of electron density is obtained by maximizing S = -Σ p log p subject to whatever data are available. MEM is derived as the only reconstruction technique that is consistent with simple and general requirements. The method is very widely applicable, but, in this paper, attention is foc…
A simple thermodynamic model describing hydrous silicate melts has been applied to the systems albite-, diopside-, and silica-$$H_{2}O$$. The model is based on the assumption of ideal mixing of hydroxyl groups, $$H_{2}O$$ molecules, and oxygens in the melt. Calculated and experimentally determined freezing-point depre…