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。
Isothermal transformation characteristics of Ti-6 mass%Al-4 mass%V alloy has been investigated by means of microstructural and surface relief observations. At temperatures between β-transus and 700°C, the nucleation of primary α-particles occurs at the grain boundaries with forming a single C-curve. Acicular structure…
This paper reviews some of our research on three classes of supra-molecular architectures which are generated via various combinations of molecular, macromolecular, and supramolecular chemistry. The ability of these supramolecular architectures to form liquid crystalline phases is determined by the shape of the self-a…
From field experience and laboratory tests, it has been observed that the contamination flashover voltage of insulators used on DC lines is more influenced by geometry (diameter and profile) than those used on AC lines. Presented in this paper are the results and analysis of a study of the effect of insulator shapes o…
Enantiopure S-methylthiodinaphtho[2,1-c: 1′,2′-e][1,2]dithiinium hexachloroantimonate 3, transfers enantioselectively the MeS+ group to trans-hex-3-ene, leading to non-racemic thiiranium ion 4, which, in turn, reacts with MeCN–H2O allowing the synthesis of optically active double functionalised alkanes with enantiomer…
The response of human skin to biaxial stretch tests in vivo was investigated and compared to the response to uniaxial tension. The results obtained illustrate the nonlinear, anisotropic, and viscoelastic (time-dependent) properties of skin under biaxial stretch. Preconditioning in the load-extension response was found…
We developed a polyol dilution method for the mass production of liposomes. This method consists of the mixing of membrane components (and lipophilic drugs) with a water-soluble, non-volatile organic solvent (glycerin, propylene glycol, etc.), followed by the dispersal of the mixture in an aqueous medium. The polyols…
The precipitation of primary MC carbides in alloy 7 18 has been studied using the techniques of directional solidification with and without quenching. The precipitation reaction:
A mathematical model is presented for the discharge of a cell. This model includes diffusion and migration in the electrolyte phase as well as proton diffusion and ohmic drop across the solid active material in the porous nickel electrode. A theoretical analysis of the cell performance is presented for different desig…
A modern theory of the macroscopic electric polarization has been recently founded. Polarization itself is not an observable, while the polarization difference ΔP between any two crystal states can be measured, defined, and calculated as a bulk material property. An hysteresis cycle measures ΔP as the integrated curre…
A numerical simulation of the collapse of a cloud of bubbles has been used to demonstrate the development of an inwardly propagating shock wave which grows rapidly in magnitude. The fully non-linear nonbarotropic homogeneous flow equations are coupled with single bubble dynamics and solved by a stable numerical scheme…
A comparison of the structure and performance behaviour of two popular models for modelling diffusion-controlled kinetics in free radical polymerization (the so called Chiu-Carratt-Soong, CCS, and Marten-Hamielec, MH, models) is presented. It is demonstrated that if some modifications on their structure are made, and…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChain dynamics in coronas of ionomer aggregatesZhisheng Gao, Xing Fu Zhong, and Adi EisenbergCite this: Macromolecules 1994, 27, 3, 794–802Publication Date (Print):January 1, 1994Publication History Published online1 May 2002Published inissue 1 January 1994https://pubs.acs.o…
The effect of an increase in hydrostatic pressure (from 1 to 300 atm) on the composition of the corrosion layer formed on 6061 T6 aluminium alloy in sea water was studied using electrochemical (polarisation potentiodynamic curves and impedance measurements) and surface analysis (X-ray photoelectron spectroscopy and Fo…
The complexes [RuII(tacn)(bipy)(OH2)]2+1 and [RuIV(tacn)(bipy)O]2+2(tacn = 1,4,7-trimethyl-1,4,7-triazacyclononane, bipy = 2,2′-bipyridine) have been synthesised and their crystal structures determined: 1, monoclinic, space group C2/c, a= 34.093(4), b= 10.430(1), c= 17.369(2)Å, β= 118.54(1)° and Z= 8; 2, triclinic, sp…
Abstract This paper presents the growth process of a new organometallic nonlinear optical (NLO) crystal triallylthiourea mercury bromide (ATMB). The growth conditions are analyzed in terms of the pH value of solution, and also crack of the crystal is interpreted according to anisotropy of thermal expansion coefficient…
Dendritic structures are the predominant microstructural constituents of solidified alloys. The microstructural scales of dendrites, such as primary and secondary arm spacings, control the segregation pattern that largely determines the properties of the material. Within the past decade significant developments in und…
In parts I and II of this series, the dominant role of ‘‘primary’’ Raman moments of degree greater than one, to Raman intensities for molecules forming a uniform coating on pairs of spherical particles in close proximity, is demonstrated. In this paper, the effect of chain length, coverage, particle size, and separati…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDirecting Polymorph Selectivity During Nucleation of Anthranilic Acid on Molecular SubstratesPhillip W. Carter and Michael D. WardCite this: J. Am. Chem. Soc. 1994, 116, 2, 769–770Publication Date (Print):January 1, 1994Publication History Published online1 May 2002Published…
Commercially complexed and chelated mineral supplements (5 Cu, 5 Zn, and 5 Mn products) were evaluated for solubility of their metals at concentrations of .125, .25, .5, 2.5, and 12.5 mg/ml in buffers at pH 5 and 2. At pH 5, solubility was related inversely to concentration, and most products were highly soluble at th…
The aim of this study was to investigate the interfacial shear strength between ice and rubbers. Different rubber materials containing only a polymer and curing agent (peroxide) were tested with regard to surface wettability and interfacial shear strength. The effect of different grades and amounts of carbon black fil…