Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMechanism of Apparent .pi.-Allyl Rotation in (.pi.-Allyl)palladium Complexes with Bidentate Nitrogen LigandsAdolf Gogoll, Joergen Oernebro, Helena Grennberg, and Jan-E. BaeckvallCite this: J. Am. Chem. Soc. 1994, 116, 8, 3631–3632Publication Date (Print):April 1, 1994Publica…
High‐resolution electron microscopy and nano‐beam analytical electron microscopy have been used to characterize both the intergranular silicate film thickness and its local composition in a series of high‐purity Si 3 N 4 ceramics doped with 0–450 at. ppm Ca. Calcium was detected at both two‐grain junctions and triple…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFerro- and Ferrimagnetic Ordering in a Two-Dimensional Network Formed by Manganese(II) and 1,3,5-Tris[p-(N-tert-butyl-N-oxyamino)phenyl]benzeneKatsuya Inoue and Hiizu IwamuraCite this: J. Am. Chem. Soc. 1994, 116, 7, 3173–3174Publication Date (Print):April 1, 1994Publication…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDensities, Viscosities, Speeds of Sound, and Water Solubilities of Some Polypropylene Glycol Ether Derivatives in the Temperature Range 273.15-323.15 KJohn P. Idoux, Cynthia K. McCurry, and Tejraj M. AminabhaviCite this: J. Chem. Eng. Data 1994, 39, 2, 261–265Publication Dat…
In the present study, the rf plasma chemical vapor deposition technique is applied to directly deposit a diamond-like carbon (DLC) film onto a zinc sulfide (ZnS) substrate with excellent adhesion. Great attention is paid to the investigation of the correlation between the deposition process parameters and the structur…
This paper describes detection and diagnostic techniques for partial discharges in gas insulated substations (GIS). Partial-discharge current waveforms of SF/sub 6/ gas and external noise characteristics of actual substations were investigated, and a measuring system having sensors in GIS and employing frequency range…
The XPS spectrum of the boron suboxide, B6O, is reported. The spectra were obtained on a powder sample that was prepared and characterized at the Diamond Technology Center, Norton Company. It was characterized with x-ray diffraction and was prepared by established methods. The B 1s peak is split into two components of…
Plutonium recycling in light water reactors (LWRs) has progressively become a fact. Over 200 t of mixedoxide (MOX) fuel have been produced in the COGEMA and BELGONUCLÉAIRE plants in the last 7 yr. Fuel loaded in European reactors—mainly MIMAS fuel—is presenting satisfactory in-core behavior and performance.Fuel fabric…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and Characterization of Porphyrin-Sugar Carbon ConjugatesGiovanni Casiraghi, Mara Cornia, Franca Zanardi, Gloria Rassu, Enzio Ragg, and Rita BortoliniCite this: J. Org. Chem. 1994, 59, 7, 1801–1808Publication Date (Print):April 1, 1994Publication History Published…
In this study, the surface composition of a fresh, commercial, alumina Claus catalyst (Alcoa S-100) was examined by x-ray photoelectron spectroscopy (XPS). This article presents the main XPS core lines and the valence band spectra obtained for the Claus catalyst. The electronic record includes the Al 2p, Al 2s, O 1s,…
XPS data have been obtained from a pressed AgO powder sample obtained from AESAR. Obtaining high-quality XPS data from a single oxide state is difficult because multiple oxide states, hydroxides, and other contaminants are usually present. The AgO sample was annealed in vacuum at 100°C for 30 min to reduce the amounts…
A detailed time domain model for the eddy current losses in the windings of a transformer is presented. The basic elements for the derivation of the model are the turns which may be combined into sections. The model is expressed as an R-matrix. Its diagonal elements were fitted using a series Foster circuit while for…
A new electrochemical method was developed to investigate crevice corrosion and its inhibitors. A wire beam electrode was used to allow electrochemical parameters to be measured directly from the crevice area. As an example, oil stain was investigated using this method.
Abstract This paper reports on the fabrication of high‐eficiency back‐side contact silicon solar cells in large volume for the '93 World Solar Challenge. the cells were used exclusively on the winning car, the Dream, made by Honda R&D Company, Ltd. the cell efficiencies were between 20% and 22% (AMI.5G, 25°C) (G =…
AssrRAcr A single-crystal X-ray diffraction study of lithiophorite [(Al,Li)MnO,(OH)r] revealed that the structure is trigonal (R3m), not monoclinic as previously reported, and yielded unit-cell parameters a: 2.9247(4), c:28.169(6) A. fne study confirmed that the structure consists of alternately stacked layers of Mn-O…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolid-State Synthesis and Characterization of Silver Vanadium Oxide for Use as a Cathode Material for Lithium BatteriesRandolph A. Leising and Esther Sans TakeuchiCite this: Chem. Mater. 1994, 6, 4, 489–495Publication Date (Print):April 1, 1994Publication History Published o…
Neutron powder diffraction has been used to measure the temperature factors of both the cation and the anion atoms in 10mol% Y2O3–ZrO2 over the temperature range 15 to 1323 K. The Housley–Hess approach has been used to determine the static disorder term of the temperature factors for both the Zr/Y and O atoms. The sta…
Thin‐film nonstoichiometric nickel oxide is an interesting intercalation electrode with unique electrochemical and optical properties which can be successfully used for improved electrochromic displays and windows of relevant technological interest. However, the correlation between the intercalation process of lithium…
Abstract A change in color and density during prolonged heating of a formulation containing ε‐hexanitrohexaazaisowurtzitane (HNIW) and Estane 5702 was investigated by Fourier transform infrared (FTIR) spectroscopic analysis. Starting materials, virgin and final colored formulation were studied. Analysis revealed polym…
The XPS spectra of materials containing both magnesium and aluminum can exhibit a number of spectral artifacts when using a Mg Kα x-ray source. These artifacts are easily observed in XPS spectra of magnesium aluminate (MgAl2O4, also known as magnesium aluminum oxide), which are presented in this article. For example,…