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。
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructure of sodium oxide-4 magnesium oxide-15 aluminum oxide, a variant of .beta.-aluminaMax Bettman and Leslie L. TernerCite this: Inorg. Chem. 1971, 10, 7, 1442–1446Publication Date (Print):July 1, 1971Publication History Published online1 May 2002Published inissue 1 July…
Antiferromagnetism in hcp Fe-Mn alloys (17.8, 25.9 and 28.6 at %Mn) was investigated by means of Mössbauer effect and neutron diffraction measurements. Néel temperatures and internal magnetic fields at 0°K were determined to be 230°K and 16 kG, respectively, over the composition range of the measured alloys. Consequen…
Twist boundaries have been observed on {001} surfaces between crystals of MgO and CdO smoke. Measurements of the angles of twist across several hundred of these boundaries have revealed preferences for boundaries at 16.5°, 22.6°, and 37.3° in MgO and 22.8°, 28.5°, and 37.1° in CdO. These angles agree with those predic…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOrgano (dipyridyl) nickel complexes. II. Stabilities of olefin-nickel bonds in olefin-cooridinated dipyridylnickel and dialkyl (dipyridyl) nickel complexesTakakazu Yamamoto, Akio Yamamoto, and Sakuji IkedaCite this: J. Am. Chem. Soc. 1971, 93, 14, 3360–3364Publication Date (…
Abstract Initial velocity kinetic studies of adenosine diphosphoglucose pyrophosphorylase from Rhodospirillum rubrum yield intersecting reciprocal plots indicating that the kinetic mechanism of this enzyme is sequential. ATP-pyrophosphate-32P isotope exchange at equilibrium studies indicate that the kinetic mechanism…
The current model of amorphous semiconductors is applied to give a description of the electrical behaviour of liquids which show a gradual transition from a semiconducting to a metallic behaviour as some parameter such as temperature or volume is changed. These include mercury at high temperatures, Te-Se alloys and ch…
An improvement is described in the automatic procedure for solving crystal structures incorporated in the computer program LSAM . The development of signs from an initial set containing symbols is carried only as far as is necessary to establish strong relationships between the symbols. The information so gained is us…
Abstract Mixing and processing methods used in the rubber industry have been designed to use the only form of raw rubber hitherto available—that of a high molecular weight solid. But rubber in high molecular weight form is essential only in the finished product; in principle, similar final properties could be obtained…
Il est bien connu que la présence de manganèse dans un alliage fer-azote conduit à une déformation marquée du pic de Snoek de l'azote. Cette modification du pic a deux conséquences importantes : - dans le dosage de l'azote interstitiel par la méthode du frottement intérieur, il est nécessaire de tenir compte de la mod…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTProtolysis kinetics of diamines in sulfuric acidDonald E. Leyden and J. M. McCall Jr.Cite this: J. Phys. Chem. 1971, 75, 15, 2400–2402Publication Date (Print):July 1, 1971Publication History Published online1 May 2002Published inissue 1 July 1971https://pubs.acs.org/doi/10.1…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and spectral characterization of .beta.-diketones containing perfluorophenyl and perfluoroalkyl groupsJames F. Engel and Cecil C. ChappelowCite this: J. Chem. Eng. Data 1971, 16, 3, 381–382Publication Date (Print):July 1, 1971Publication History Published online1 M…
Abstract The infra‐red spectrum of polyvinyl acetate has been studied from 4000 to 150 cm‐1 and a detailed assignment made. To assist with the assignments the partially deuterated polymer, poly‐α, α, β‐trideuterovinyl acetate, and a branched‐chain acetate have been synthesised and their spectra examined.
Abstract From the differential thermal and thermogravimetric analyses of potassium oxalate together with the X-ray diffraction studies, three crystallographic modifications of the anhydrous salt were found. When potassium oxalate monohydrate crystals were dehydrated at, e.g., 140°C, phase II, which is stable below 381…
Abstract The literature on polymer morphology contains many studies of structural and orientation changes occurring upon uniaxial stretching of films and fibers, but it has only an occasional reference to such studies on biaxially stretched film. This paper presents data on a structural change due to simultaneous biax…
The principles governing formation of superficial oxides on metal surfaces are surveyed. Oxide crystals grow on a metal surface by rearrangement and place exchange within metal-oxygen substructures arising from the accumulation of oxygen by adsorption processes. The rate-controlling steps for growth of films are discu…
Electrical conductivity and magneto resistance effect of Ni, Cu, Zn and metal free phthalocyanine single crystals were investigated. The electrical conductivity and the activation energy in phthalocyanine were expressed by following equations \begin{aligned} \sigma{=}Ne\mu_{D}\exp\left(\frac{\varDelta S}{2k}\right)\ex…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCorresponding states and the glass transition for alkali metal nitratesC. A. Angell and D. B. HelphreyCite this: J. Phys. Chem. 1971, 75, 15, 2306–2312Publication Date (Print):July 1, 1971Publication History Published online1 May 2002Published inissue 1 July 1971https://pubs…
The susceptibility of 18% Ni (250) maraging steel to stress corrosion cracking in 3.5% NaCl solution has been investigated. Metallographic and fractographic examinations show distinct differences between specimens broken under free corrosion conditions and those broken under hydrogen charging conditions. It is propose…
The sintering of uranium mononitride (UN) depends on temperature and the N 2 pressure maintained over the nitride during heat treatment. At a given temperature, an N 2 pressure that maintained the UN in the single‐phase region slightly above the phase boundary where the reaction UN→U+½N 2 (g) occurred was most effecti…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMutual solubilities of propylene carbonate and waterArthur G. Williamson and Neil F. CatherallCite this: J. Chem. Eng. Data 1971, 16, 3, 335–336Publication Date (Print):July 1, 1971Publication History Published online1 May 2002Published inissue 1 July 1971https://pubs.acs.or…