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。
Simultaneous Fourier transform infrared and stress-strain measurements have been applied to monitor the onset, progress, and decay of strain-induced crystallization during cyclic loading-unloading of sulfur-crosslinked natural rubber. The investigations also provided data in terms of the orientation of the average pol…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChemistry and structure of the first 10-Sb-3 speciesConstantine A. Stewart, Richard L. Harlow, and Anthony J. Arduengo IIICite this: J. Am. Chem. Soc. 1985, 107, 19, 5543–5544Publication Date (Print):September 1, 1985Publication History Published online1 May 2002Published in…
The transformation‐range viscosity and thermal expansion be‐havior of sodium‐potassium borate glasses were studied. The results indicate that negative deviations from additivity in the viscosity of these glasses are a function of the Na 2 O to K 2 O ratio and that the magnitude of these deviations increases with alkal…
Fr\'eedericksz transition under twist deformation in a nematic layer is discussed when the magnetic field has a random component. A dynamical model which includes the thermal fluctuations of the system is presented. The randomness of the field produces a shift of the instability point. Beyond this instability point th…
Abstract Research was conducted to define appropriate compound loading conditions and energy parameters required to properly control and analyze fatigue crack propagation experiments for tire sidewall applications. The effects of strain level, pulse frequency, overall cycle frequency, sample thickness, and oven temper…
Synopsis Clay mineral logs for the Jurassic succession at Brora are presented as vertical profiles in lithostratigraphic units. The shale clay mineralogy is dominated by ordered illite/smectite and kaolinite. A sub-tropical, possibly seasonal, climate is inferred. High kaolinite content is attributed to reworking of p…
Abstract Supermolecular structure of linters cellulose at the cellulose I–II phase transition is investigated by wide‐angle X‐ray scattering (quantitative phase analysis, degree of crystallinity by the method of Ruland and Vonk, and lateral crystallite sizes via peak separation by Pearson VII functions). A survey of m…
Abstract The deformation of thin films of poly(1‐butene) (PB) occurs by micronecking. In both fresh (From II crystal structure) and aged (Form I) films finite blocks are drawn off the edge of the microneck, the detailed mechanisms depending on the orientation of the original crystalline ribbons comprising the spheruli…
Abstract A unique mineral association that represents embryonic stages of halloysite formation in weathering of andesitic volcanic ash was found in three Ecuadorian soils which did not contain allophane. This mineral association consisted of more or less poorly ordered halloysites and a “1.0‐nm mineral”. The more poor…
Abstract 1. Densities of elastomers with crystallizing soft segments were higher than that of the noncrystallizing ones. However, the effect of the soft segment length is not regular and may reflect some specific interactions between two phases as well as instantaneous morphology. 2. Phase inversion as judged by drop…
A pure silica core fiber with glass cladding is known to produce larger absorption in the visible wavelength region under γ-ray irradiation than a similar fiber with silicone cladding. This absorption is a serious problem, especially in image-guiding fibers used in radiation environments such as in nuclear power plant…
We have applied the results of the nonperturbative theory of zero-phonon linewidths of impurities in crystals discussed by Osad’ko and us, and further developed by us in papers I and II of this series, to the analysis of several absorption, photon echo, and hole burning experiments. Two (relatively) high temperature a…
This paper described recently devloped non-oriented electrical steel products for both rotating machines and ballast cores of fluorescent lamps and effective measures to achieve lower core loss for grain-oriented silicon steel for transformers. H6, the highest grade of non-oriented electrical steel produced by Nippon…
A review of corrosion and environmental effects on the mechanical properties of candidate structural alloys for use with liquid metals infusion reactors is presented. The corrosion/mass transfer behavior of austenitic and ferritic steels and vanadium-base alloys is evaluated to determine the preliminary operating temp…
No abstract available.
Abstract Generally the deposition of oilfield scale in surface and subsurface production equipment can cause many operational problems. Scale precipitation in oilfields has a detrimental effect on fluids, processing equipment, pipelines, and downhole well equipment processing equipment, pipelines, and downhole well eq…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThermally activated magnesium oxide surface chemistry. Adsorption and decomposition of phosphorus compoundsShaw Tao Lin and Kenneth J. KlabundeCite this: Langmuir 1985, 1, 5, 600–605Publication Date (Print):September 1, 1985Publication History Published online1 May 2002Publi…
Abstract Polyurethanes based on MDI/BDO are known to crystallize in three distinct forms. Two of these crystal structures, type II and type III, have been characterized by electron and x‐ray diffraction experiments on model compounds and oriented thin films of a 77% hard‐segment polyurethane elastomer. The model compo…
Abstract Nickel crystal chemistry was systematically studied in various phyllosilicates, mainly the natural phases selected from the ‘garnierites’ of the supergene ore deposits of New Caledonia. Minerals which do not usually occur in New Caledonian parageneses were synthesised, as they could represent intermediate pha…
The sulfur-based organic metal di[bis(ethylenedithio)tetrathiafulvalene]triiodide [or (BEDT-TTF${)}_{2}$${\mathrm{I}}_{3}$, abbreviated (ET${)}_{2}$${\mathrm{I}}_{3}$] occurs in at least two crystalline phases. One phase (denoted as \ensuremath{\beta}) exhibits ambient-pressure superconductivity, while the second (den…