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Showing 1 to 20 of 164 for “"phase diagrams"”.
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Study of gold-based alloy phase diagrams
… in good agreement with computed features of the diagrams. However, pseudobinary systems were not found between Pb and the stable congruent melting intermediate compounds, AuGa, AuGa2, AuZn and AuCd (the AuIn-Pb and AuIn2-Pb sections had already been investigated). The evidence of an extensive …
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Asymptotic phase diagrams for lattice spin systems
We present a method of constructing the phase diagram at low temperatures, using the low temperature expansions. We consider spin Iattice systems described by a Hamiltonian with a d-dimensional perturbation space. We prove that there is a one-one correspondence between subsets of the phase diagram …
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Binary phase diagrams from a cubic equation of state
Thesis (Sc.D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1981.
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Elucidation of Protein -Precipitant Phase Diagrams and Their Link to Crystal Quality
… structural biologist to rapidly determine the phase diagram (e.g. solubility boundary, metastable zone width) of proteins of unknown structure using a very small sample volume. The knowledge of phase diagram of a protein/precipitant system thus obtained will be useful in obtaining high quality …
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The self-assembly of proteins: Probing anisotropic protein-protein interactions using phase diagrams
… (an eye lens protein) for which the phase diagrams for the single mutants are known. In effect, these double mutants establish a competition between the influences of each individual amino acid substitution, each of which are known to significantly influence the phase behaviour of the …
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Monte Carlo computer simulation of the Lennard-Jones and Stockmayer fluid phase diagrams
The isotherms of the Lennard-Jones fluid and the Stockmayer fluid are calculated by Monte Carlo computer simulation using the constant NpT ensemble. Empirical coefficients are determined for a truncated virial equation of state fitted to our data. Spinodal points are located for each temperature …
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Unique cluster expansion for reliable first-principles prediction of alloy thermodynamics and phase diagrams
… of thermodynamic quantities and prediction of phase diagrams. The CE Hamiltonian is expanded in terms of correlation functions of all geometric cluster entities on a fixed lattice, forming a basis set that spans the entire alloy configuration space on the lattice. The coefficients in the CE are …
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Phase Transitions and Critical Phenomena: Universality and Global Multicritical Phase Diagrams From Position-Space Renormalization-Group Studies
Made available in DSpace on 2015-05-13T15:22:06Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7726630.PDF: 3936650 bytes, checksum: 5bf6e4cb8e0ef27310dda10920042f4f (MD5) Previous issue date: 1977
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Phase transitions and critical phenomena: Universality and global multicritical phase diagrams from position-space renormalization-group studies
… has given impressive results in studies of phase transitions and critical phenomena. Most work has focussed on the local critical properties of rather simple models. After presenting background on phase transitions and reviewing the PSRG procedure in general, we extend this approach to more …
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New features in the phase diagrams of the cuprate high-Tc superconductors mapped using strong magnetic fields
… I present the discovery of novel features in the phase diagrams of the cuprate high-Tc superconductors using high magnetic field electrical transport measurements. These discoveries attempt to address two central questions pertaining to how the physics of the cuprate high-Tc superconductors evolve …
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Development and Implementation of Dispersion Phase Diagrams (DPDs) for Four Different Hydrophobically Modified Ethoxylated Urethane (HEUR) Based Acrylic Paint Systems
… and physical properties of the end-product. Phase separation of the paints, also called syneresis, is a major concern of paint formulators because paints need to be as stable when left sitting in a paint-can for an extended period of time. The goal of this project is to essentially probe the …
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Topics in D-1 Dimensional Statistical Mechanics: 1. Statistical Mechanics of Equilibrium Crystal Shapes: Interfacial Phase Diagrams and Phase Transitions. 2. Symmetry Classifications of Two-Dimensional Phase Transitions
… contained in Chapter 1, concerns interfacial phase diagrams and phase transitions associated with equilibrium crystal shapes. The second portion, contained in Chapter 2, deals with symmetry classifications of phase transitions in two dimensions.
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Topics in d-1 dimensional statistical mechanics: 1. Statistical mechanics of equilibrium crystal shapes: Interfacial phase diagrams and phase transitions; 2. Symmetry classifications of two-dimensional phase transitions
Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-08T15:53:38Z No. of bitstreams: 1 1983_rottman.pdf: 5449883 bytes, checksum: 4bdcc2bdab4a99aec5a87b2590ed62eb (MD5)
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Developing a thermodynamic model for the U-Pd-Rh-Ru quaternary system for use in the modelling of nuclear fuel
… compounds change the properties of fuel pellets. Phase diagrams involving uranium have been constructed experimentally to study fission product behaviour, specifically diagrams containing the very stable UMe3 (where Me = Ru, Rh, or Pd) compounds. Discrepancies such as enthalpies of formation of …
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Transport properties of micellar solutions and microemulsions.
… complex nonionic surfactant-water-oil systems. Phase diagrams were determined for the tetraoxyethylene dodecylether (C[12]E[4])-water and the Brij 30-water systems; the available hexaoxyethylene dodecylether (C[12]E[6])-water phase diagram was confirmed.Conductivity measurements were made in the …
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Strictions and new stripe phases of epitaxial erbium (0001) on sapphire (112̄0)
… two phenomena that have made the magnetic phase diagram of thin films hard to predict. These are the elastic energy of epitaxial misfit and the magneto static energy of the equilibrium configuration. In both cases, Er is particularly well suited to the fundamental investigation of …
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Chemical vapor deposition of β-SiC thin films on Si(100) in a hot wall reactor
… to the calculation of the local equilibrium CVD phase diagrams, which represent the most stable phases above the substrates in a hot wall reactor, for SiC deposition from the MTS—H₂ gas mixture by coupling the depletion effects to the equilibrium thermodynamic computer code SOLGASMIX—PV. The …
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Chiral symmetry breaking transitions in holographic duals
… quark model results. We also explore the phase structure of these models, with respect to temperature, chemical potential and applied electric field. The phase diagrams contain regions with broken and restored chiral symmetry separated by first order, second order and BKT transitions. …
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Crystal growth and perfection of selected intermetallic and oxide compounds
… studies of unknown or insufficiently known phase diagrams, their correlation with growth conditions and optimisation of process parameters for obtaining single crystals with high chemical and physical perfection. The measurements of the physical properties of the grown crystals such as …
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Crystal structure prediction for rechargeable battery anodes
… calculations to predict the compositional phase diagrams of material systems that have relevance as conversion anodes in sodium- and potassium-ion batteries. The aim is to discover phase diagrams that can balance high capacity with low volume expansion (thus limiting electrode cracking and …
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