Systematics Of The Binary Intermetallic Phases

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Journal of Alloys and Compounds

The information of stable solid phases and the models used in the Ho X (X: Cu, Mo, V) systems [7] are listed in Table 1. 2.1. Solution phases Gibbs free energies of the solution phases of (liquid and hcp, fcc and bcc phases) in an A B system, corresponding to the Cu Ho, Ho Mo and Ho V systems, were described by the subregular solu-

Systematics of Structural, Phase Stability, and Cohesive

Systematics of Structural, Phase Stability, and Cohesive as the occurrence of an In-doped g¢-intermetallic in the microstructure of Cu/ binary end-member compounds Cu 6Sn 5 and Cu 6In 5

Table of Contents

Soft Phonons and Diffusion Systematics in BCC Transition Metals and Alloys C. Herzig 203 A Nineteen-Frequency Model of the Impurity Diffusion in Body-Centred Cubic Metals for nearest- and next-nearest-Neighbour Monovacancy Jumps C. Tuijn, H. Bakker and G. Neumann 221 Stress Induced Vacancy Flow in Single Crystals with Anisotropic Diffusion

Microsymposia

agreement with the Au-Na binary alloy phase diagram [2]. The present finding suggests that the gold-alkali metal system may have a rich variety of intermetallic phases at high pressures.

Structure and superconductivity in ternary systems of compounds

established that certain particular crystal structure of a binary or ternary (intermetallic or chemical) compound is very conducive to give rise to high T~ superconductivity. The beta-tungsten (A3B or A15) structure adopted by a large number ofintermetallics is the well-known example.

High-pressure behavior of iron carbide (Fe7C

and phase equilibria studies in the Fe‐C binary system at pressures above 130 GPa [Lord et al., 2009]. [8] On the basis of systematics of compressibility in intermetallic phases, Wood [1993] assumed a bulk modulus K 0 = 174 GPa and its pressure derivative K′ 0 = 5.1 for Fe 3C. X‐ray diffraction studies on the equation of state of Fe 3C

Lattice stability of aluminum-rare earth binary systems: A

identified some new phases such as Al 3Ce.hR12, AlCe 2.oP12, and Al 3Nd.hR12 in theAl-Ce andAl-Nd sys-tems and assigned the crystal structures based on FP calcu-lations. In light of their results, it is reasonable to ask the following questions: Are there any phases inappropriately treated or any phases missing in the other Al-RE RE=rare

The solubility of indium in liquid gallium supercooled to 12 K

In this laboratory, there is an active research program studying diffusion in intermetallic compounds using a nuclear hyperfine interaction technique, perturbed angular correlation of gamma rays (PAC). A second area of research has been to determine and understand the systematics of site

Aportes de la difracción de - Argentina.gob.ar

Metastable phases produced by quenching from HT → avoid surface oxidation and study the bulk We were interested in possible Zr/Nb or Ti/V atomic ordering in the binary Ω phase. We needed reliable phase fractions to study phase coexistence in the diagram, not possible at Centro Atómico with a conventional diffractometer in this kind of samples.

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Jun 06, 2019 Ordered Intermetallic Pt-Sn Nanoparticles: Exploring Ordering Behavior Across the Bulk Phase Diagram Douglas Y. DeSario and Francis J. DiSalvo-This content was downloaded from IP address 157.55.39.113 on 06/06/2019 at 22:32

HIGH PRESSURE CRYSTALLOGRAPHY C-529

phases have been observed to exist in the group V elements Sb and Bi, and the group N-VI compounds PbS, PbSe, and PbTe. Our high-resolution angle-dispersive data, collected using im­ age plates from samples within diamond anvil high-pressure cells, has shown that one high-pressure structure type is common to all five materials we have studied.

Importance of the atom-pair bond in metallic alloying - arXiv

intermetallic compounds in binary systems has also interested scientists for a long time and they have worked essentially using structural maps with different pseudo-potential-derived or empirically derived parameters as coordinates5-9. Intermetallic compounds with different crystal structures were separated into different regions on such maps.

Table of Contents

and its Solid Polymorphic Phases T. Górecki 185 Systematics of Thermal Defect Formation, Migration and of Self-Diffusion in Intermetallic Compounds H.E. Schaefer and K. Badura-Gergen 193 Diffusion in L12 Type Intermetallic Compounds M. Koiwa, H. Numakura and S. Ishioka 209 Diffusion in Intermetallic Phases - Historical Facts and New Results G

Diffusion in Intermetallic Compounds Studied Using Nuclear

To investigate the systematics of diffusion in the rare earth tri-indide series, measurements are reported in this paper on CeIn 3, PrIn 3, NdIn 3, GdIn 3, YIn 3 and ErIn 3. The jump frequency w is defined here as the inverse of the mean residence time of the tracer atom on a site.

U. Walzer. Systematization of binary intermetallic compounds

Therefrom, functions are formed for binary compounds and alloys of type AB. If two each of these functions are plotted in pairs, an arrangement is Obtained according to regions With crystals Of the same Structure type and same space group, Of the same melting temperature class etc. This systematics enables one to eliminate unfavourable

Pedology, Weathering, and Geomorphological

of binary collisions. The goal is an understanding of chemical and physical rate processes from the fundamental, microscopic point of view. Primary attention is devoted to the physical phenomena and their conceptual interpretation rather than to the details of experimental techniques or theories. Assuming only an elementary background

CADMIUM JUMP FREQUENCIES IN L1 INTERMETALLIC COMPOUNDS

of binary intermetallic compounds which have the L12 structure (prototype: AuCu3). These phases have the nominal composition A3B (throughout this paper, the majority atom will be designated by A and the minority atom B), and can be derived from the face-centered-cubic (fcc) structure (Fig. 1). A atoms occupy the face centers of the cubic

Electronic origin of melting T P curves of alkali metals with

studied crystal structure of the intermetallic alloys of different compositions under pressure and has revealed systematics in their behaviour and how the number of valence electrons correlates with the stability of the crystal structure within the Hume-Rothery mechanism. She uses the idea that contribution of the electronic energy into

U. Walzer. Systematics of binary intermetallic phases. Phys

Systematics of the Binary Intermetallic Phases U, WALZER a survey is given of semiempirical approachcs designed for predicting physical and chemical properties of binary alloy systems from the properties of the elements. The same goal is pursued with the help of a pseudopotential theory with optimum transferability derived from relativistic quantum

Superconductivity and long range magnetic order in ternary

temperatures in some systems of binary compounds.® These fundamental questions, together with the potential technological applications in superconducting wires, magnets, generators and logic devices are strong motivating forces for finding superconducting materials with desirable or unusual physical and mechanical properties.

First-principles calculation of structural energetics of Al

3TM phases, which form stable tetragonal structures in the binary systems. Such efforts have given rise to substantial inter-est in understanding phase stability in these systems, which are generally characterized by the presence of a number of often structurally complex stable and meta-stable intermetallic phases.

Ternary Alloys: A

Ternary Alloys: A Comprehensive Compendium Of Evaluated Constitutional Data And Phase Diagrams, Vol. 7, Al-Mg-Se To Al-Ni-Ta 2/18 Downloaded from www1.reserveatlakekeowee.com

COMMENTS ON INTERMETALLIC THERMOCHEMISTRY

the suggestion for a systematics of the stability of intermetallic phases given for instance by Pettifor [40], on the basis of maps built for all the binary combinations by using the Mendeleev number of the elements involved. An interesting contribution was also given by Brewer, who especially considered