Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTImidazolate complexes of iron and manganese tetraphenylporphyrinsJohn T. Landrum, K. Hatano, W. Robert Scheidt, and Christopher A. ReedCite this: J. Am. Chem. Soc. 1980, 102, 22, 6729–6735Publication Date (Print):October 15, 1980Publication History Published online1 May 2002…
Anodic polarization measurements made in Hanks' physiological solution at 37 degrees C and a pH of 7.4 show titanium materials to be the most passive of the following metals: titanium, Ti-6A1-4V, Ti-Ni (memory alloy), MP35N (Co-Ni-Cr-Mo), Co-Cr-Mo, 316L stainless steel, and nickel. The influence of the amino acids, cy…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPolymerized vesiclesSteven L. Regen, Bronislaw Czech, and Alok SinghCite this: J. Am. Chem. Soc. 1980, 102, 21, 6638–6640Publication Date (Print):October 8, 1980Publication History Published online1 May 2002Published inissue 8 October 1980https://pubs.acs.org/doi/10.1021/ja0…
The temperature variations of the refractive indices of LiYF4, YLF, have been measured in the visible region of the spectrum. The temperature variation at 0.546 μm are −0.67×10−6/°C and −2.30×10−6/°C for the ordinary and extraordinary refractive indices, respectively. A Sellmeier equation was fit to more extensive roo…
Abstract The Raman spectra of the low temperature phase single crystal of KHSO 4 and of polycrystalline KDSO 4 have been investigated at 300 and 90 K. Infrared spectra of polycrystalline samples have been recorded for compaison in the 4000 to 30 cm −1 range. An assignment of bands due to internal vibrations to their s…
The magnetostriction constant and saturation magnetization at room temperature are measured for iron-based amorphous alloys containing various kinds of metalloid and metal atoms, except Co and Ni. The data show that the magnetostriction constant is proportional to the square of the saturation magnetization for these a…
Abstract In the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene or 1,5-diazabicyclo[4.3.0]non-5-ene, metal-free phthalocyanine was obtained by heating phthalonitrile in alcohols. Addition of a copper(II) salt in the reaction gave copper phthalocyanine in a good yield.
This paper describes the development of a high-speed torsional testing machine and results obtained on the strain-rate dependent strength of copper at large shear strains. Test techniques and data obtained are intended to be useful in applications such as ballistics and machining. For copper, the results indicate posi…
Determinations of carbon dioxide solubility in melts of CaMgSirOu and NaCaAlSirO, composition at high pressure and temperature have been combined with Raman spectroscopic measurements of quenched melts to determine the structural role of CO, in silicate melts. Carbon dioxide solubility increases with increasing temper…
Abstract Mössbauer spectroscopy of dioctahedral phyllosilicates showed that on dehydroxylation iron which originally occupied M(2) and M(l) sites became, respectively, 5- and 6-coordinated. The 6-coordinated sites are very distorted. No migration of cations occurs in the course of heating the specimens for 1–3 hr at 6…
We have measured the diffusion coefficient and weight average molecular weight of type I collagen fibril fragments obtained by acid extraction of rat tail tendons and neutral extraction of lathyritic chick skin, using laser light scatttering techniques. The molecular weight and translational diffusion coefficient were…
This paper describes the effect of morphological structure on the electric strength and some physico-chemical properties of polymers with flexible chains (HDPE, LDPE, PP) and polymers with rigid chains (CA). It is shown that a polymer body has a discrete structure consisting of elements of different densities. The mos…
Polyimide is receiving increasing interest as a possible insulator on semiconductor devices, replacing SiO 2 . Several commercially available polyimides have been characterized by testing films of them for electric breakdown strength, conductivity, adhesion, and other properties. The results of these tests are summari…
Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text M. Kerker, O. Siiman, L. A. Bumm, and D.-S. Wang, "Surface enhanced Raman scattering (SERS) of citrate ion adsorbed on colloidal silver," Appl. Opt. 19…
The kinetics of corrosion were measured by accelerated oxidation tests on Co‐30Cr and Ni‐30Cr as a function of temperature from 600°–900°C, in the environment and deposit composition. The alloys were rapidly attacked at temperatures between 650° and 750°C when a liquid sulfate phase was obtained from an initially pure…
Abstract Thirty two boehmites, synthesized at temperatures ranging from room temperature to 300°C, were examined by scanning electron microscopy, transmission electron microscopy, electron diffraction, X-ray powder diffraction, differential thermal analysis, and infrared spectroscopy. The results show that boehmite ex…
The kinetics of polymer growth and especially gelation are discussed for a system of reacting f-functional monomeric units. The gelation models of Flory and Stockmayer are examined, and their implications concerning sol–gel interaction after gelation has occurred are clarified. A new model, in which the gel does not c…
Machine learning (ML) is transforming all areas of science. The complex and time-consuming calculations in molecular simulations are particularly suitable for an ML revolution and have already been profoundly affected by the application of existing ML ...Read More
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChemical, spectral, structural, and charge transport properties of the "molecular metals" produced by iodination of nickel phthalocyanineCharles J. Schramm, Raymond P. Scaringe, Djordje R. Stojakovic, Brian M. Hoffman, James A. Ibers, and Tobin J. MarksCite this: J. Am. Chem…
Abstract XPS and AES have been applied to the surface analysis of antimony oxides, Sb 2 O 3 , Sb 2 O 4 and Sb 2 O 5 . By means of the computer‐operated separation of oxygen and antimony contribution, the oxygen to metal atomic ratios calculated from XPS data were found to be close to the expected values. An antimony p…