Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis, characterization, and crystal structure of a new potassium borate, KB3O5.3H2OChristopher G. SalentineCite this: Inorg. Chem. 1987, 26, 1, 128–132Publication Date (Print):January 1, 1987Publication History Published online1 May 2002Published inissue 1 January 1987h…
A study of the adsorption sites of thoria has been made using scanning transmission electronic microscopy (STEM) and Fourier-transform infrared spectroscopy (FTIR). The STEM study showed that the thoria surface was composed mainly of (110)(211) and (111) faces in about equal proportions. The infrared study of activate…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTin sulfide, tellurium iodide ((Te2)2I2), and related compounds: symmetry-controlled deformations in solid-state materialsWolfgang Tremel and Roald HoffmannCite this: Inorg. Chem. 1987, 26, 1, 118–127Publication Date (Print):January 1, 1987Publication History Published onlin…
Non-uniform multiple slip near a grain boundary plane in face centered cubic bicrystals was examined analytically. Mathematical models for movement and interaction of dislocations were introduced to have a quantitative constitutive relation describing plastic deformation of face centered cubic crystals. Then, a new co…
When the CHCl3 extract obtained by partitioning the methanolic extract of Periploca sepium between H2O and CHCl3 was subjected to column chromatography on silica gel, the antitumor activity against Sarcoma 180 ascites in mice was concentrated in the fraction eluted with CHCl3-MeOH (10 : 1). From the antitumor fraction…
Stainless steels irradiated in EBR-II at temperatures in the range 380 to 500°C tend to exhibit saturation of mechanical properties at relatively low fluence levels. At fluences on the order of 13 to 15 × 1022 n/cm2 (E > 0.1 MeV), however, there is a rapid increase in hardness just after the onset of void swell…
A monochromatic X-ray irradiation system in the 0.08-0.4 nm wavelength range is described. This uses for the first time, synchrotron radiation at the Photon Factory as an X-ray source (2.5 GeV electron storage ring). It consists of a beam shutter, a Si crystal monochromator, ionization chambers for monitoring exposure…
A 1:1 Offner mirror system is modified to work as a grating spectrometer for the infrared by placing a grating on the secondary convex mirror of the system. Slight adjustment of the configuration combined with tilt of the secondary provide the necessary degrees of freedom to correct for astigmatism of the system. Addi…
Abstract
Charge-transfer processes in iron(III) hexacyanoferrate(II), i.e. Prussian Blue (PB), have been studied by conductimetry, dielectric relaxometry (DR) and spectrophotometry. In dry PB the predominant process is sitewise electron transfer, from agreement in inferred electron-transfer frequencies, v. When wet or admixed…
Includes a full mathematical treatment of the interaction of an electromagnetic wave with a gyromagnetic ferrite material.
Abstract The crystal structure of the monoclinic form of (BEDT-TTF)(TCNQ) is determined by X-ray analysis. The donor (BEDT-TTF) and the acceptor (TCNQ) molecules are planar and form alternating stacks.
The role of natural convection daring melting of pure tin from a specially designed heater that formed a vertical wall of a rectangular cavity has been studied experimentally. Temperature and solid-liquid interface position were measured under carefully controlled conditions, and the evolution of the melting front and…
Abstract The thermal degradation of cellulose, cellulose phosphates, and cellulose thiophosphates was studied by differential thermal analysis, dynamic thermogravimetry, and derivative thermogravimetry from ambient temperature up to 750°C. Various thermodynamic parameters for different stages of thermal degradation of…
The adsorption of zinc n-, iso-, and s-dibutyldithiophosphates from n-hexadecane on iron and iron oxide powders was investigated in static conditions. The effects of ZDTP concentration, time, and temperature were examined. ZDTP adsorption isotherms on both powders are very similar and are S-type. The adsorption kineti…
(1987). Hygroscopicity and Moisture Adsorption Kinetics of Pharmaceutical Solids: A Review. Drug Development and Industrial Pharmacy: Vol. 13, No. 4-5, pp. 653-693.
Conductivities and viscosities of solutions of Li, Na and K thiocyanates in low-molecular-weight liquid copolymers of ethylene oxide and propylene oxide have been measured. The curves of molar conductance vs. c½ show well defined maxima and minima. The conductivity is independent of copolymer molecular weight but is e…
Abstract Thin solid films of PMMA doped with donor–acceptor norbornadienes were prepared, and their photochromic properties were examined. The photochromic solid films have absorption at a visible region, and their photochemical decolorization due to valence isomerization proceeded in high quantum yields. They show re…
A summary of the effects of hydrostatic pressure on the properties of KDP and related crystals is presented with some emphasis on recent results. Topics discussed include the decrease and ultimate vanishing of Tc with pressure, the underdamped soft mode, the strong deuteration dependence of the pressure effects, the p…
Reaction of Fe(ClO4)2·6H2O with N,N′,N′-trimethyl-1,4,7-triazacyclononane (L) in methanol and addition of solid NaSCN, NaOCN, or NaN3 gave yellow compounds of the type [{FeLX2}2](X = NCS, NCO, or N3). [{FeL(NCS)2}2] is a binuclear, neutral complex in the solid state containing two bridging and two terminal thiocyanato…