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。
The use of empirical and deterministic models for predicting damage functions for localized corrosion are reviewed and compared. In general, empirical models are successful because the distribution functions employed display great mathematical flexibility. However, they require a very significant database to achieve r…
Abstract Silica, alumina, silica‐aluminas and zeolites were screened as catalysts for polyolefins degradation. The degradations were carried out at temperatures from 200°C till to 600°C under vacuum. The degradation products were analyzed using gas chromatography‐mass spectrometry (GC‐MS). The comparison between these…
A new class of structurally complex materials whose constituent molecules are composed of three rod-like units, each attached to a central disc-like unit via a flexible spacer have been synthesized and their phase behaviour investigated. They are found to exhibit a rich and unusual liquid-crystalline polymorphism.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStudies of the alternating copolymerization of vinyl ethers with chlorotrifluoroethyleneB. Boutevin, F. Cersosimo, and B. YoussefCite this: Macromolecules 1992, 25, 11, 2842–2846Publication Date (Print):May 1, 1992Publication History Published online1 May 2002Published iniss…
Microstructure, phase stability, and mechanical properties of CeO 2 ‐partially‐stabilized zirconia (12 mol% Ce‐TZP) containing 10 wt% Al 2 O 3 and 1.5 wt% MnO were studied in relation to the base Ce‐TZP and the Ce‐TZP/Al 2 O 3 composite without MnO. The MnO reacted with both CeO 2 and Al 2 O 3 to form a new phase of a…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEvaluation of segmental interaction by small-angle x-ray scattering based on the random-phase approximation for asymmetric, polydisperse triblock copolymersShinichi Sakurai, Keiji Mori, Atsuo Okawara, Kohtaro Kimishima, and Takeji HashimotoCite this: Macromolecules 1992, 25,…
Two test specimens of skin were cut from the lateral aspect of each hind limb of 9 rats. Specimens were contiguous, thereby providing matched pairs. One specimen was immediately placed in liquid nitrogen for 5 minutes, then stored at -70 C and tested within 3 to 4 weeks. Within 5 minutes of harvest, the second specime…
Summary Two test specimens of skin were cut from the lateral aspect of each hind limb of 9 rats. Specimens were contiguous, thereby providing matched pairs. One specimen was immediately placed in liquid nitrogen for 5 minutes, then stored at −70 C and tested within 3 to 4 weeks. Within 5 minutes of harvest, the second…
Electrochemical impedance spectroscopy (EIS) was applied over a wide frequency range to characterize the corrosion protection behavior by two types of zinc-rich paints (ZRP) (zinc-rich epoxy polyamide and zinc-rich ethyl silicate) on steels. Information concerning the properties of ZRP coatings has been evaluated from…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNonlinear optical properties of poly(p-phenylenebenzobisoxazole)Samson A. Jenekhe, John A. Osaheni, Jeffrey S. Meth, and Herman VanherzeeleCite this: Chem. Mater. 1992, 4, 3, 683–687Publication Date (Print):May 1, 1992Publication History Published online1 May 2002Published i…
Thermus thermophilus ribonuclease H was overexpressed and purified from Escherichia coli. The determination of the complete amino acid sequence allowed modification of that predicted from the DNA sequence, and the enzyme was shown to be composed of 166 amino acid residues with a molecular weight of 18,279. The isoelec…
The major issues dealt with in this article are the possibility and principles of measuring multiple fabric properties with a single testing process, the fabric extraction method, which has been applied to handle measurement and evaluation. A theoretical model proposed by Alley is presented with some modifications to…
Adsorption of globular proteins at an air-water interface from an infinite stagnant medium was modeled as one-dimensional diffusion in a potential field. The interaction potential experienced by an adsorbing molecule consisted of contributions from electrostatic interactions, work done against the surface pressure to…
A new model is proposed for transition metals to obtain effective interionic pair potentials. The local form factor combines the empty-core model, which accounts for the nearly free electron band, and a contribution giving all the features associated with the d band obtained by an inverse scattering approach. The effe…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis, characterization, and bonding of indium clusters: Na7In11.8, a novel network structure containing closo-In16 and nido-In11 clustersSlavi C. Sevov and John D. CorbettCite this: Inorg. Chem. 1992, 31, 10, 1895–1901Publication Date (Print):May 1, 1992Publication Hist…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStudies on the reactivity of S,N-derivatives of nickel with N-donor bases. Crystal structure and magnetic properties of the cubane cluster tetrakis(.mu.-hydroxo)tetrakis(.mu.-1,3-thiazolidine-2-thionato)tetrakis(pyridine)tetranickel(II)-dipyridineLoreto Ballester, Eugenio Co…
Abstract This paper is the first in a series of related papers describing the application of a diffusion/reaction model to the loss of antioxidants from polyolefins in hot‐water applications. The model, which is derived in detail, describes the time evolution of antioxidant concentration profiles in the exposed materi…
Abstract The peak value of tan δ at the glass-transition temperature ( T g ) in the plot of tan δ versus temperature is lowered on addition of filler to a rubber. This relative lowering of tan δ at T g can be used to estimate the filler distribution in an immiscible rubber blend. In the present investigation, distribu…
A homologous series of symmetric dimeric liquid crystals has been synthesized and its phase behaviour investigated. All members of the series were found to form glassy phases above room temperature.
Abstract Changes in polymer structure and antioxidant concentration have been systematically studied as functions of temperature, hoop stress, exposure time, and location in pipe wall on pressure tested pipes of medium density polyethylene. The pressure tests have been performed with water as the internal medium and a…