Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTImprovements in the structure and adhesion of electrodeposited thin film cadmium selenideHenry Wynands and Michael CociveraCite this: Chem. Mater. 1991, 3, 1, 143–149Publication Date (Print):January 1, 1991Publication History Published online1 May 2002Published inissue 1 Jan…
A new approach is presented to the micromechanics or fiber assemblies, extending the current idea of the local fiber orientation distribution. The theory can predict all the differential elastic moduli of a mass in terms of its structural parameters, the density of fiber length, orientation density, fiber crimp parame…
Abstract The growing characteristics of splicing misoriented KDP seeds of both bulk and thin pieces were investigated. The chemical etching method was used to determine the prismatic and Z‐plate surfaces of the crystals grown by splicing bulk KDP seeds. The X‐ray Lang topography method was employed to measure original…
Al–Cu and Al–Si alloy round rods were experimentally produced by using a moldless upward continuous casting apparatus. Al–Cu and Al–Si alloys were selected because they have a wide solidification range and solidify in a mushy type or in a eutectic manner. Effects of the the alloying element, the superheat of molten me…
Polystyrene particles (size range 300nm-3μm diameter) were radioiodinated and their capture by rat peritoneal macrophages measured in vitro. For unmodified particles, most efficient accumulation was observed using a diameter of 600nm (Endocytic Index (E.I.) = 16.4 ± 2.9μl/106cells/h). Particles (3μm diameter) which ha…
Metabolism of the Flame Retardant Plasticizer Tris(2-chloroethyl)phosphate by Human and Rat Liver Preparations. CHAPMAN, D. E., MICHENER, S. R., AND POWIS, G. (1991) Fundam. Appl Toxrcol. 17, 2 15–224. Previous studies indicate that tris(2-chloroethyl)phosphate (TCP) preferentially produces hippocampal brain lesions i…
A study has been made on the effect of the final thickness, 0.60-0.18 mm, under the same reduction rate in cold rolling on the secondary recrystallization of the grain-oriented electrical steel produced by the single-stage cold rolling process.(1) On the heating period of final annealing in the case of the atmosphere…
アークイメージ浮遊帯法により陽イオン伝導体であるSrCeO3およびSrCe0.95Yb0.05O3-a結晶を育成し,それぞれの構造を粉末X線回折図形のRietveld解析により決定した。精密化には,Glazerが提案したひずんだペロブスカイト型構造モデルを使用して行った。SrCeO3は斜方晶のPnma(No.62)で,格子定数はa=6.1473(2),b=8.5803(5),c=6.0066(2)Åで,SrCe0.95Yb0.05O3-aではa=6.1409(2),b=8.5783(7),c=5.9997(4)Åであった。SrCeO3とSrCe0.95Yb0.05O3-aとの精密化された構造パラメーターは,誤差範囲内で一致し,イッ…
The reaction rates between iron-chromium alloys (1.17, 5.65 and 11.96 a/0Cr) and tellurium were measured in the temperature range of 873–1,023 K at 350 Pa of tellurium vapor pressure, and in the tellurium vapor pressure range of 66.7–600 Pa at 923 K. The electron probe microanalysis, marker experiment and X-ray diffra…
195Pt and 15N NMR chemical shifts and constants of scalar spin–spin coupling, 195Pt–15N and 195PtII–195PtIV, for the heterovalent platinum tetra- and hepta-meric oxonitrocomplexes [(NO2)6PtIV(μ-O)3PtII3(NO2)6]5− and [(NO2)6PtII3(μ-O)3PtIV(μ-O)3PtII3(NO2)6]8−, and for products of hydrolysis of these complexes have been…
The platinum–gold cluster complexes [Pt(AuPPh3){P(CH2CH2PPh2)3}]+ and [Pt(AuPPh3){N(CH2CH2PPh2)3}]+ were obtained by treatment of [PtH{P(CH2CH2PPh2)3}]+ or [PtH{N(CH2CH2PPh2)3}]+ with [AuCl(PPh3)], isolated as BPh4– salts, and characterized by 31P and 195Pt NMR spectroscopy. They contain five-co-ordinate platinum and…
Abstract A standard commercially available cryopump system has been installed on a scanning electron microscope (SEM) using specially optimized vacuum vibration isolation bellows. This installation was successful in reducing the cryopump‐induced vibration to a level that did not degrade the standard performance or res…
Relationship between the microstructure and the fracture behavior of welds which were tested by Charpy impact on SUS329J1 (Fe-25Cr-5Ni-0.1N) stainless steel has been studied.Volume fraction of γ phase decreases at HAZ which has been heated over 1400K. At the region over 1600K, the morphology of γ also change to Widman…
(1991). Strength characteristics of composite materials. Welding International: Vol. 5, No. 5, pp. 341-345.
A new crystal of copper phthalocyanine (CuPc) named the α-form was directly synthesized from phthalonitrile and CuCl2 with 1,8-diaza-bicyclo(5,4,0)undecene-7 by a seeding procedure. The α-CuPc was investigated by X-ray powder diffractometry, spectroscopic and photoelectric measurements. These results were attributable…
Studies of nickel migration from Cr–Ni stainless steel exposed to potable water indicate that there is a ‘stagnant water problem’, which is also known to occur with other pipe materials. The nickel levels can reach the EC recommended upper limit within a period of one week; depending on the surface condition and volum…
Abstract The anionic polymerization of monomers such as acrylonitrile (AN) and ε‐caprolactone by triethylenediamine (TEM)/epoxide complex was investigated. They were not polymerized by TEM alone but polymerized easily with the addition of various epoxides. When glycidyl methacrylate (GMA) and allyl glycidyl ether (AGE…
The texturalcentric model of visual and tactile response to textural fabric surfaces was used to extract characteristics that could be used to build a construct definition of texture perception. Using multidimensional scaling analysis permitted subjects to provide numeric judgements of fabrics rather than using words…
Article Crystal structure of hexapotassium di-μ-tellurido-bis(ditelluridoaluminate), K6Al2Te6 was published on January 1, 1991 in the journal Zeitschrift für Kristallographie - Crystalline Materials (volume 197, issue 1-2).
Static softening and grain growth after hot deformation were studied by means of interrupted compression tests and metallographic observations for dynamically recrystallized (DRX) as well as dynamically recovered (DRY) copper at temperatures of 723 to 1023 K. The softening curve after DRX consists of three distinct st…