Materials Literature
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La${\mathrm{Ir}}_{2}$${\mathrm{Si}}_{2}$ has a high-temperature form crystallizing in the primitive tetragonal Ca${\mathrm{Be}}_{2}$${\mathrm{Ge}}_{2}$-type structure (space group $\frac{P4}{\mathrm{nmm}}$; $a=4.191$ \AA{}, $c=9.944$ \AA{}), and a low-temperature form of the body-centered tetragonal Th${\mathrm{Cr}}_{…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEXAFS structure and magnetic properties of a CuIINiII .mu.-oxalato mixed linear chainMichel Verdaguer, Miguel Julve, Alain Michalowicz, and Olivier KahnCite this: Inorg. Chem. 1983, 22, 18, 2624–2629Publication Date (Print):August 1, 1983Publication History Published online1…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThermotropic polyesters. 2. Investigation of the mesophase properties of polymers based on 4,4'-dihydroxybiphenylW. R. Krigbaum, J. Watanabe, and T. IshikawaCite this: Macromolecules 1983, 16, 8, 1271–1279Publication Date (Print):August 1, 1983Publication History Published o…
▪ Abstract The phase-field method has recently emerged as a powerful computational approach to modeling and predicting mesoscale morphological and microstructure evolution in materials. It describes a microstructure using a set of conserved and ...Read More
Abstract The situation of the general theory of plasticization is discussed. It is shown that the existing theories satisfactorily describe only particular cases, therefore exhibiting limited predicting capability. If the polymer and plasticizer compatibility is being evaluated unambiguously within the scope of the th…
Single crystals of tetramethylammonium tetrabromomanganate {N(CH 3 ) 4 } 2 -MnBr 4 were grown, and the phase transition was studied by dielectric measurements. The crystal shows a phase transition at 3.5°C. The transition temperature increases linearly with increasing hydrostatic pressure with a slope of 0.185 deg MPa…
The term trapping is used extensively to refer to the fact that interstitial atoms often find interstices associated with lattice imperfections to be energetically preferable to normal sites. This preference results in a delay of diffusion of interstitial atoms near these sites. As understanding of the details of latt…
M S El-Samaligy, P Rohdewald; Reconstituted collagen nanoparticles, a novel drug carrier delivery system, Journal of Pharmacy and Pharmacology, Volume 35, Issue
Abstract Thermal and thermo‐oxidative degradation of poly(vinyl chloride)s (PVCs) containing increased concentrations of allylic chlorines, PVC(A)s, prepared by controlled chemical dehydrochlorination with potassium‐ t ‐butoxide ( t ‐BuOK) have been studied. The introduction of small amounts of internal allylic chlori…
The annealing behavior of spin coated thin films prepared from solutions of As2S3 dissolved in n-propylamine and n-butylamine has been investigated using IR, mass spectrometry, thermogravimetric analysis, and scanning calorimetry. As prepared films containing arsenic sulfide glass domains with surfaces reacted as alky…
Gallium is a metal that literally melts in your hand. It has low toxicity, near-zero vapor pressure, and a viscosity similar to water. Despite possessing a surface tension larger than any other liquid (near room temperature), gallium can form nonspherical ...Read More
Experiments measured the transfer of heat through protective fabrics when the exposure is to a convective source (open flame). An instrumented calorimeter located on the opposite side of the fabric measured the heat transferred. Heat flux data were used to compute a burn protective index based on data on the tolerance…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSurface-enhanced Raman spectroscopy of adsorbates on semiconductor electrode surfaces: tris(bipyridine)ruthenium(II) adsorbed on silver-modified n-gallium arsenide(100)Richard P. Van Duyne and Jeanne P. HaushalterCite this: J. Phys. Chem. 1983, 87, 16, 2999–3003Publication D…
We consider a suspension of particles in a fluid settling under the influence of gravity and dispersing by Brownian motion. A mathematical description is provided by the Stokes equations and a Fokker–Planck equation for the one-particle phase space density. This is a nonlinear system that depends on a number of parame…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectrochemical and spectral characterization of iron mono- and dinitrosyl porphyrinsD. Lancon and K. M. KadishCite this: J. Am. Chem. Soc. 1983, 105, 17, 5610–5617Publication Date (Print):August 1, 1983Publication History Published online1 May 2002Published inissue 1 August…
A study of polycrystalline A zeolite exchanged with Eu(OH)2 solution has been performed using EPR spectroscopy. Detailed computer simulation techniques have been used to simulate EPR spectra from first principles, with the explicit incorporation of random distributions in the crystal field interaction parameters. This…
Solution-cast films of a polyurethane based on 4,4′-diphenylmethane diisocyanate (MDI) and 1,4-butanediol (BDO) as the hard segment and poly(propylene oxide) endcapped with poly(ethylene oxide) (PPO-EO) as the soft segment were examined by optical and electron microscopy, electron diffraction, and wide-angle x-ray sca…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPorphyrin electrode films prepared by electrooxidation of metalloprotoporphyrinsK. A. Macor and T. G. SpiroCite this: J. Am. Chem. Soc. 1983, 105, 17, 5601–5607Publication Date (Print):August 1, 1983Publication History Published online1 May 2002Published inissue 1 August 198…
The yield stress of nylon 6 (Ny6) composites filled with ultrafine and micron-sized (SiO2 and glass) particles was measured as a function of temperature, rate of strain, and filler content. The yield stress of the composites filled with ultrafine SiO2 particles increased with filler content and decreased with filler s…
Based on the existence of a yield surface and a memory surface which represents the maximum stress state the material ever experienced, a plasticity model is proposed to describe the inelastic behavior of metal. By choosing the initial locations and sizes of these two surfaces based on the internal structure and the l…