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。
Unusual [$uuw$]- and [$uv0$]-type axes of easy magnetization have been observed in some cubic rare-earth-iron Laves compounds. The presence of these directions of spontaneous magnetization can be accounted for, within the phenomenological treatment of the magnetic anisotropy, by including eighth-power direction-cosine…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe structure of the heteropolytungstate (NH4)17NA|NaW21Sb9O86|.cntdot.14H2O. An inorganic cryptateJean Fischer, Louis Ricard, and Raymond WeissCite this: J. Am. Chem. Soc. 1976, 98, 10, 3050–3052Publication Date (Print):May 1, 1976Publication History Published online1 May 2…
Measurements of electrical and optical properties have been made on Ge x Se 1- x amorphous thin films of about 1 µm thickness. From the experiment of electrical conductivity at various temperatures, two processes of the d.c. conductivity in Ge x Se 1- x films are observed in plots of ln σ against 1/ T . The thermoelec…
A series of glasses in the TiO 2 ‐SiO 2 system was prepared by the flame hydrolysis boule process. Clear glasses containing as much as 16.5 wt% TiO 2 were obtained. More TiO 2 caused opacity due to phase separation and anatase/rutile crystallization during glass boule formation. Glasses in the 12 to ∼17 wt% TiO 2 rang…
Crack healing and strengthening of thermally shocked alumina are related to pore evolution in the microstructure during annealing. Grain growth is not necessary for either an increase or a decrease in strength following heat treatment.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDouble Strand Helix of Isotactic Poly(methyl methacrylateHiroshi Kusanagi, Hiroyuki Tadokoro, and Yozo ChataniCite this: Macromolecules 1976, 9, 3, 531–532Publication Date (Print):May 1, 1976Publication History Published online1 May 2002Published inissue 1 May 1976https://pu…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolvent and substituent effects on the redox reactions of para-substituted tetraphenylporphyrinKarl M. Kadish and Mark M. MorrisonCite this: J. Am. Chem. Soc. 1976, 98, 11, 3326–3328Publication Date (Print):May 1, 1976Publication History Published online1 May 2002Published i…
The Eu 2+ luminescence in hexagonal aluminates containing large divalent or trivalent cations was studied in relation to the crystal structures of the host lattices. It was found that these can be divided into three groups: compounds with the magnetoplumbite structure like ; the La‐containing aluminates ( and ) which…
Abstract The thermal cis-to-trans isomerization rate of various azobenzenes was followed by means of spectrophotometric and flash photolysis techniques. For para-donor/para′-acceptor-substituted azobenzenes such as 4-nitro-4′-dimethylaminoazobenzene, the rate was distinctly accelerated, the activation energy decreasin…
Measurements of the saturation magnetization have been made on a series of Fe-Si alloys near ${\mathrm{Fe}}_{3}$Si and a series of alloys in which a small amount of a $3d$, $4d$, or $5d$ transition-metal element ($T$) is added to form the composition ${\mathrm{Fe}}_{3\ensuremath{-}c}{T}_{c}\mathrm{Si}$. Moment assignm…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTriple-decker sandwichesJoseph W. Lauher, Mihai Elian, Richard H. Summerville, and Roald HoffmannCite this: J. Am. Chem. Soc. 1976, 98, 11, 3219–3224Publication Date (Print):May 1, 1976Publication History Published online1 May 2002Published inissue 1 May 1976https://pubs.acs…
Journal Article Photoelectron and Auger Spectroscopy Get access Photoelectron and Auger Spectroscopy. Thomas A. Carlson. Plenum Press, New York, 1975. xiii + 417 pp. Price $32.50. Alan J Senzel Alan J Senzel AOAC, Washington, DC Search for other works by this author on: Oxford Academic Google Scholar Journal of Associ…
Measurements of lattice parameters and intensities of difference reflexions have been made for all compositions of Nal - xKxNbO3, both at room temperature and above. Structural models are proposed for each phase found.
X-ray absorption spectra near the Kalpha edge have been measured in various iron group compounds using the intense synchrotron radiation at the Stanford Synchrotron Research Project. In the cubic compounds KMF3 where M = Mn+2, Fe+2, Co+2, Ni+2, and Zn+2, well resolved lines were observed and assigned to the 1s leads t…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTExcluded Volume Effects and Stretched Polymer ChainsP. PincusCite this: Macromolecules 1976, 9, 3, 386–388Publication Date (Print):May 1, 1976Publication History Published online1 May 2002Published inissue 1 May 1976https://pubs.acs.org/doi/10.1021/ma60051a002https://doi.org…
B R Lawn and T R Wilshaw London: Cambridge University Press 1975 pp ix + 204 price £7.20 ( cased ), £3.80 ( paperback ) This book is one of the new Cambridge Solid State Science Series, intended for final year and postgraduate students. Starting from Griffith's concept of an energy balance, the authors give a clear an…
CONTENTS 1. Characteristics of the Method 337 2. Introducing the Spectral Parameter into the Equation 338 3. Introducing the Spectral Parameter into the Boundary Conditions 343 References 352
The literature data on the radical and ionic linear polymerisation of mainly mono- and di-substituted acetylenes with a single carbon?carbon triple bond are considered and the known mechanisms of the acetylene polymerisation processes are discussed. Much attention is devoted to the copolymerisation of acetylenes with…
For pt.I see ibid., vol.8, no.12, p.1921 (1975). Samples of neutron-irradiated CaO examined at room temperature show EPR spectra from several defect species with S= 1 / 2 and g-values very close to the free-electron value. Spectra with S=1 have been associated with anion divacancy pairs along (100), (110) (NNN sites),…
The atomic arrangement in the basal plane of Ti is determined by analysis of low-energy electron diffraction (LEED) intensities. Twenty-five beams at four angles of incidence and at two azimuths have been measured and compared to calculations. Complications caused by the simultaneous presence on the surface of domains…