Materials Literature
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Abstract Viscoelastic data from dynamic measurements show that modifying resins produce complex changes in the properties of styrenic block copolymers. These property changes are generally consistent with compatibility concepts. Resins which are compatible with the midblock of these polymers, Resins AL-1, Al-2, and RE…
Because the greatly reduced lattice constants of Ce2Fe14B lead to nonmagnetic behavior, partial substitution of La for Ce, thereby expanding the lattice constant, may result in magnetic properties. (La1-xCex)2Fe14B powder samples with x ranging from 0 to 1 were prepared, and the magnetic properties and latttice consta…
Abstract The theory of phase separation and microdomain formation in block copolymer‐homopolymer blends is reviewed. The calculations involve the solution of modified mean field diffusion equations for the polymer distribution functions, which are used to construct a general free energy expression, taking into account…
(1985). The Flexural Rigidity of Polyester-fibre–Cotton Yarns Produced on the Ring-, Rotor-, and Friction-spinning Systems. The Journal of The Textile Institute: Vol. 76, No. 6, pp. 454-458.
Abstract Es wird eine Anlage mit 20 l Reaktor zur Darstellung größerer Mengen von Silanen beschrieben, die eine Weiterentwicklung unserer früheren Apparatur mit 50 l Reaktor ist, und deren Kühlsystem auch die Kondensation von Disilan erlaubt. Das Verfahren beruht auf der von S TOCK verwendeten Säurezersetzung von Magn…
There has been a growing interest in depositing metal-containing thin films by plasma polymerization for various applications. These films have been deposited by two methods (a) by plasma polymerization of volatile organometallic monomers, and (b) by simultaneous plasma etching and polymerization in the same system, r…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMechanism of redispersion of supported metal catalysts in oxidative atmospheresE. Ruckenstein and X. D. HuCite this: Langmuir 1985, 1, 6, 756–760Publication Date (Print):November 1, 1985Publication History Published online1 May 2002Published inissue 1 November 1985https://pu…
Abstract Im Rahmen eines gemeinsamen Forschungsvorhabens sollten für die nichtrostenden austenitischen Stähle 1.4541 und 1.4571, die als Konstruktionswerkstoffe bei der Schwefelsäure‐Produktion, der Aufarbeitung von Abfallschwefelsäure und der Wärmerückgewinnung eingesetzt werden, die Grenzbedingungen für den anodisch…
Abstract Changes occur in the structure of drawn polyethylene when it is annealed at temperatures close to that of the drawing process. Measurements have been made of the oxygen barrier properties and of the thermal expansion coefficient in the draw direction on samples over a wide draw ratio range both before and aft…
Grain boundary dislocation (GBD) structures in symmetric [001] tilt boundaries in Al bicrystals of controlled geometry have been studied using transmission electron microscopy. The intrinsic GBD structure of near-Σ1, Σ5 and Σ13 boundaries consisted of families of straight edge GBDs with Burgers vectors b=〈100〉 or 1/2〈…
Abstract The title compound was synthesized in three steps from ethoxycarbonylformamide oxime (5) and 3,4,6‐tri‐ O ‐acetyl‐2,5‐anhydroallonyl chloride (4b) in 62% overall yield. An acid catalyzed de‐esterification was required to prevent a facile base catalyzed elimination reaction.
A new plate impact technique for studying the dynamic properties of shock-damaged materials has been developed. The technique is based on impacting the specimen with two flyer plates which are separated by a small gap. Impact of the first plate causes spall in the target. Impact of the second plate closes the spall. T…
During irradiation, dislocation loops, bubbles and voids are often formed in crystalline materials. The presence of these defects gives rise to irradiation hardening. At elevated temperatures, the strength may be dictated by the balance between the rate of creation of these defects by irradiation and their rate of the…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAlkali-metal intercalates of layered yttrium chloride oxide and their hydration reactionsJeff E. Ford and John D. CorbettCite this: Inorg. Chem. 1985, 24, 24, 4120–4128Publication Date (Print):November 1, 1985Publication History Published online1 May 2002Published inissue 1…
Abstract Various 4‐ and 4′‐substitued trans ‐ N ‐benlizylidenanilines were synthesized and their 1 H NMR spectra recorded at 30 °C in DMSO‐ d 6 , and acidic media (TFA‐ d and D 2 SO 4 ). The effects of substituents on the chemical shifts of H‐α (proton on carbon of imine group) and H‐2′ (protons on benzaldehyde ring o…
This paper reviews some of the important processes underlying high temperature degradation of structural materials used in the petroleum and petrochemical industries. Particular emphasis is palced in degradation processes involving the interaction of structural metals and alloys with environments containing sulfidizin…
This paper describes the development of several inorganic-based, non- halogenated, intumescent flame retardant additives for organic polymers. Low melting phosphate-sulfate glasses, borate/carbonate glass forming systems and ammonium pentaborate are discussed with respect to their role in converting otherwise flammabl…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSelf-assembling of spiropyran polymers by zipper crystallizationTmima Wismontski-Knittel and Valeri KrongauzCite this: Macromolecules 1985, 18, 11, 2124–2126Publication Date (Print):November 1, 1985Publication History Published online1 May 2002Published inissue 1 November 19…
Jar tests and a circulating water system were used to evaluate the effect of water quality parameters, in particular the Langelier index (SI), on the corrosion of galvanized steel. Since waters with a positive SI were sometimes found to be at least as corrosive as waters with a negative SI, especially if the effect of…
The relative stress corrosion cracking (SCC) susceptibility of heat-treated AISI 316 nuclear grade (NG) and 316 stainless steel (SS) has been investigated by means of constant extension rate tensile (CERT) tests over a range of strain rates from 10−5 to 10−7 s−1 in simulated boiling water reactor (BWR) environments th…