Showing papers on "Ternary operation published in 1970"
178 citations
TL;DR: The reliability of equilibrium constants and enhancement factors, et, for ternary metal-substrate-enzyme complexes determined by proton relaxation rate titration methods has been examined and the degree of accuracy in et should be quite satisfactory for evaluating molecular parameters of the ternARY complex from the magnitude of et.
102 citations
TL;DR: The ternary Zn•Cd•Te surface and the pseudobinary CdTe•ZnTe solidus curve have been determined by thermal analysis of cooling and heating curves, respectively, of homogenized liquid and solid alloy samples as mentioned in this paper.
Abstract: The ternary Zn‐Cd‐Te liquidus surface and the pseudobinary CdTe‐ZnTe solidus curve have been determined by thermal analysis of cooling and heating curves, respectively, of homogenized liquid and solid alloy samples. The binary Cd‐Te and Zn‐Te liquidus arrest temperatures are in good agreement with most of the previously published data and confirm the presence of well‐ defined inflections on the metal‐rich and Te‐rich sides of both liquidus curves. The binary interchange energy parameters calculated along each liquidus curve for the regular and quasi‐chemical approximation solution models give essentially similar values for dilute solutions. Near equiatomic composition however, they show values respectively in excess of 200 kcal/mole and less than 40 kcal/mole. The pseudobinary CdTe‐ZnTe liquidus and solidus curves exhibit monotonic and sublinear increases in temperature with increasing ZnTe content. The gap between the two curves remains less than 0.16 mole fraction and shows excellent agreement with the values calculated from the ideal liquidus‐solidus thermodynamic relationship. The ternary liquidus temperatures form a smooth surface with a narrow ridge near the pseudobinary CdTe‐ZnTe composition line and practically degenerate ternary eutectic and boundary lines.
96 citations
TL;DR: In this paper, the ternary phase diagram was calculated using Darken's quadratic formalism to describe the Ternary liquid and assuming the solid solution in equilibrium with the liquid to be regular.
Abstract: layers grown by liquid‐phase epitaxy were obtained in the range of , when grown on the (111 Ga) plane of GaAs. Attempts to grow alloys on the (110), (111 As), (100), and (112 As) planes resulted in polycrystalline layers. The alloy composition was determined by x‐ray fluorescence and the band gap by infrared transmission. The ternary‐phase diagram was calculated using Darken's quadratic formalism to describe the ternary liquid and assuming the solid solution in equilibrium with the liquid to be regular. It was found that the experimental results were in good agreement with the calculated phase diagrams. A number of liquidus isotherms were calculated in the temperature range of 700°–1200°C. Gallium arsenide isoconcentration curves are shown for 0.95, 0.90, 0.80, 0.50, and 0.30 mole fraction.
89 citations
TL;DR: In this article, the crystal structures of the ternary compounds MNb 3 S 6 (M = Mn, Fe, Co, Ni) have been refined and their magnetic susceptibilities measured using single-crystal samples.
82 citations
TL;DR: The ternary phase fields of three tetragonal tungsten-bronze type structures have been located as mentioned in this paper, and only one of these structures is a Ternary compound; it is located along the binary join, extending from 20 to 80 m/o, and melts congruently near 50%.
Abstract: Phase equilibria in the binary system and the ‐rich region of the ternary system were investigated by DTA, x‐ray diffraction, strip heater, and Curie temperature measurement techniques. The ternary‐phase fields of three tetragonal‐tungsten‐bronze type structures have been located, Only one of these structures is a ternary compound; it is located along the binary join, extending from 20 to 80 m/o , and melts congruently near 50% . The ternary solubility extends from about 4% excess to about 1% excess . This phase possesses observable orthorhombic distortion in the ‐rich region of the solid solution. The implications of the phase diagram for the crystal growth of these compounds are briefly discussed.
81 citations
01 Feb 1970-Metallurgical and Materials Transactions B-process Metallurgy and Materials Processing Science
TL;DR: In this paper, general expressions are given to describe macrosegregation in ternary alloys resulting from mass flow of interdendritic liquid during solidification, and basic parameters determining whether a given alloy element segregates positively or negatively are given, and it is shown that alloy elements which form a second phase, e.g., an inclusion, can often be expected to segregate positively where other alloy elements segregate negatively.
Abstract: General expressions are given to describe macrosegregation in ternary alloys resulting from mass flow of interdendritic liquid during solidification. Basic parameters determining whether a given alloy element segregates positively or negatively are given, and it is shown that alloy elements which form a second phase,e.g., an inclusion, can often be expected to segregate positively where other alloy elements segregate negatively. Numerical examples are given for alloys from the aluminum rich cornee of the Al−Cu−Ni system and qualitative examples are given for the Fe−Si−O system. Experimental measurements of macrosegregation in the Al−Cu−Ni system are in agreement with theory.
76 citations
TL;DR: In this article, the authors proposed a method to predict multicomponent data from pure component properties using a reduction of binary data to a small number of parameters with various solution models.
Abstract: n essential ingredient in the industrial design of disA tillation equipment is a knowledge of the vaporliquid equilibria of the system to be separated. Many articles containing experimental equilibrium data for binary systems have appeared in the literature in recent years. However, the vast majority of industrial separations involves several components, and experimental data for systems containing four or more components are almost nonexistent. Because the cost and time involved in obtaining experimental equilibrium data increase rapidly with the number of components, the distillation practitioner has turned to thermodynamics in search of effective predictive methods. Our knowledge of liquid mixtures is still far from complete. Ultimately, the design engineer would like to predict multicomponent data from pure component properties. However, the present methods involve reduction of binary data to a small number of parameters with various solution models. These models are then used with the binary parameters to predict multicomponent behavior.
61 citations
TL;DR: In this paper, the relations developed previously for the spinodal and the consolute state in quasi-binary polymer solutions (single solvent and polydisperse polymer) are extended so as to cover quasi-ternary systems containing in addition a second poly dispersal polymer.
Abstract: The relations developed previously for the spinodal and the consolute state in quasi-binary polymer solutions (single solvent and polydisperse polymer) are extended so as to cover quasi-ternary systems containing in addition a second polydisperse polymer. The equations obtained also describe polymer compatibility, solvent + non-solvent + polydisperse polymer systems and truly ternary low-molecular-weight mixtures. Some experimental examples relating to the quasi-ternary system diphenylether + linear polyethylene + polypropylene illustrate the usefulness of the equations. The interaction between polyethylene and polypropylene segments differs according as the latter belong to isotactic or atactic sequences. The mutual solvent method for determining polymer compatibility may lead to erroneous conclusions.
60 citations
TL;DR: The closeness of the ionic radii of the hydride and fluoride ions results in close structural analogies between the corresponding binary and ternary compounds of the highly electronegative elements as discussed by the authors.
60 citations
TL;DR: In this paper, a study was made of the possibility of estimating the compatibility of polymer pairs by means of viscosity measurements of the corresponding ternary systems polymer-polymer-solvent.
01 Jan 1970
TL;DR: In this paper, a complete formal solution of the Wiener approximation problem in the absence of noise is given for the case when the input is a ternary or an inverse-repeat binary m sequence.
Abstract: A Complete formal solution of the Wiener approximation problem in the absence of noise is given for the case when the input is a ternary or an inverse-repeat binary m sequence. The full set of correlation equations are shown to depend on N/2 1st-order and N/2 2nd-order equations, where N is the sequence period; for the ternary sequence, the proof makes use of a new identity in the elements 0, 1, −1. It is concluded that these sequences do not effectively identify kernels of order greater than 2.
TL;DR: Magnetic and structural characteristics of ternary intermetallic systems with lanthanides, considering Ln substitution by other rare earth elements are discussed in this paper, where the authors consider the case where lanthanide substitution is considered.
Abstract: Magnetic and structural characteristics of ternary intermetallic systems with lanthanides, considering Ln substitution by other rare earth elements
TL;DR: In this article, the authors used the Knudsen effusion method and radiochromium, 51 Cr to determine the Gibbs energies of chromium in ternary alloys.
TL;DR: In this paper, three binary A-15 compounds (Zr4Sn, Ta3Sb, Ta4Au) were reinvestigated and all three found to be superconducting below 1 ¼ K.
Abstract: Three binary A-15 compounds (Zr4Sn, Ta3Sb, Ta4Au) were reinvestigated and all three found to be superconducting below 1 ‡K. Ternary compounds V3(Al, X), (X=As, Ge, Au) were also investigated in the composition range where the A-15 structure is stable. The extrapolated superconducting transition temperature of the compound V3Al, if it existed in the A-15 form, is ∼ 17 ‡K.
TL;DR: The colour is formed instantaneously, stabilizes within 20 min, and may be used for the detection of aluminium in the range O.27-54 pm in the presence of EDTA which prevents the interference of most ions.
TL;DR: In this paper, the phase relations in the BaSi2O5−BaAl2Si2Si 2O8−SiO2 portion of the system were investigated by the standard quenching method and revealed as a simple ternary system; its features include a ternaries eutectic at 1122°±7°C and a composition of BaO 35.2, Al2O3 9.5, and SiO2 55.3 wt.
Abstract: Phase relations in the BaSi2O5−BaAl2Si2O8−SiO2 portion of the system BaO-Al2O3−SiO2 were reinvestigated by the standard quenching method. In contrast to the results of earlier studies, this portion is revealed as a simple ternary system; its features include a ternary eutectic at 1122°±7°C and a composition of BaO 35.2, Al2O3 9.5, and SiO2 55.3 wt%, involving the phases sanbornite, celsian, and silica. These results are compared with those of earlier quenching studies, with relations in analogous ternary systems, with data from hydrothermal experiments, and with observations of natural mineral assemblages.
TL;DR: In this article, the ternary intermetallics of the parent compound, GdCo 5 or LnFe 2, have been studied to ascertain whether the antiferromagnetic coupling between the sublattices in the parent compounds can be reversed.
TL;DR: In this paper, a general scheme has been developed to evaluate the conditions under which a ternary phase may become unstable and decompose into the binary compounds, and the extension of the general scheme from ternaries to quarternary and higher compounds is proposed.
TL;DR: In this article, the Wilson and NRTL equations were successfully applied for the correlation of the liquid-phase activity coefficient and for the prediction of ternary equilibrium data, using a Jones still.
Abstract: Isobaric vapor-liquid equilibrium data at 76Omm of Hg were determined for the ternary methyl acetate-2-propanol-benzene system and isothermal equilibrium data at 50°C were obtained for the ternary system methyl acetate-chloroform-benzene and for its binary systems, methyl acetate-chloroform, methyl acetate-benzene, and chloroform-benzene, using a Jones still. The Wilson and NRTL equations were successfully applied for the correlation of the liquid-phase activity coefficient and for the prediction of ternary equilibrium data.
TL;DR: In this article, the ternary composition 15 B 2 O 3 -37.5 BaO (mole ratio) was synthesized in both powder and single crystal form from the Ternary Composition 15 B O 3 − 37.5 Fe 2O 3 - 47.5 B 2 Fe 6 O 11.
TL;DR: In this article, the ternary system BaO-ZnO-SiO2 with molar ratios of BaO : ZnO : SiO2 of 1 : 1 : 3, 1 : 2 : 2, 2 : 3 : 3 are described.
Abstract: The equilibrium relationships in the greater part of the ternary system BaO-ZnO-SiO2 have been determined. Fifteen ternary invariant points have been located; six of these are eutectics, and the minimum melting point in the system is 1100o at a composition of 41.7% BaO, 17.00/0 ZnO, 41.3% SiO2 by weight. Five ternary compounds with molar ratios of BaO : ZnO : SiO2 of 1 : 1 : 1, 1 : 1 : 3, 1 : 2 : 2, 2 : 1 : 2, and 2 : 3 : 3 are described.
TL;DR: In this article, the system U-Sb-O was examined in air up to 1000°C for ternary compounds and the products were characterized by chemical analysis, density determinations, TGA, X-ray diffraction techniques, and magnetic measurements.
Abstract: The system U-Sb-O was examined in air up to 1000°C for ternary compounds. The products were characterized by chemical analysis, density determinations, TGA, X-ray diffraction techniques, and magnetic measurements. The ternary compounds found were USbO5 and USb3O10. All cations are pentavalent in these new compounds, which are crystallographically related to α-UO3 and U3O8.
01 Feb 1970-Metallurgical and Materials Transactions B-process Metallurgy and Materials Processing Science
TL;DR: In this article, the authors determined the extent of the solid miscibility gap in the system CaO−FeO−MnO at 1100°C by electron microprobe, point-counting, and X-ray diffraction analysis of coexisting phases within the miscibility gaps.
Abstract: The extent of the solid miscibility gap in the system CaO−“FeO”−MnO at 1100°C has been determined termined by electron microprobe, point-counting, and X-ray diffraction analysis of coexisting phases within the miscibility gap. Activities of FeO in ternary solid solutions have been determined at 1100°C by equilibrating the solid solutions with metallic iron and a gas phase of known oxygen pressures. Activity-composition curves for CaO and MnO in the ternary system are calculated from a Gibbs-Duhem integration, and the data are extrapolated to the binary system CaO−MnO, which is shown to display a considerable positive deviation from ideality at 1100°C.
TL;DR: In this paper, the enthalpic Wilson equation and Orye equation were used to predict binary vapor-liq. equilibria for 16 binary systems, 5 of which showed limited miscibility, and for 4 ternary systems.
Abstract: Based on a quasilattice model of a multicomponent soln., 3 equations are derived relating component activity coeffs. to the compn. of a liq. mixt. The equations also apply to systems showing limited miscibility. Temp. dependence of activity coeffs. is built in. The equations were tested for 16 binary systems, 5 of which show limited miscibility, and for 4 ternary systems. The enthalpic Wilson equation, one of the 3, gives the best prediction of binary vapor-liq. equil. Both the enthalpic Wilson equation and the Orye equations give good results of comparable accuracy for the ternary systems. [on SciFinder (R)]