Results 231 to 240 of about 986,142 (266)

The phase stability of Zn2Ti3O8

Materials Characterization, 1996
Abstract The ZnO-TiO 2 phase diagram is well established for temperatures above 1000 °C. At lower temperatures, there is an uncertainty about the ranges of stability of three zinc titanate compounds, Zn 2 TiO 4 , ZnTiO 3 , and Zn 2 Ti 3 O 8 . In particular, there is controversy over whether Zn 2 Ti 3 O 8 is a stable or a metastable compound. In the
J. Yang, J.H. Swisher
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Phase Stability of Nanoanatase

Advanced Engineering Materials, 2003
A more precise determination of the critical particle size Dc for phase stability between nanocrystalline anatase and rutile is outlined by the authors. The predicted Dc value of 14 nm with a very weak temperature dependence between 550 and 850 °C (instead of an otherwise published Dc of 15 nm), which is deducted from theoretical calculations, is in ...
H.M. Lu, W.X. Zhang, Q. Jiang
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Phase Stability of the Microtron

Proceedings of the Physical Society. Section B, 1953
The limits of phase and energy within which electrons can be stably accelerated in a microtron are calculated for a number of voltages by two different methods. The effect of small changes in the magnetic field are considered and the energy and phase of electrons after the first transit are given for different resonator gaps and voltages.
C Henderson, F F Heymann, R E Jennings
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Phase Formation and Stability

2009
Locally similar icosahedral structural ordering between parent phase and nucleating phase is believed to be responsible for the frequently occurring formation of icosahedral quasicrystals from undercooled liquid alloys or during devitrification of metallic glasses.
Walter Steurer, Sofia Deloudi
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Phase stability of glasses

Journal of Non-Crystalline Solids, 1988
Abstract Allowing rearrangements effected by covalent bond rupture it appears that all three-dimensional materials are more stable in some crystalline (or quasi-crystalline) state than in glassy form. The scaled glass temperature, T rmrg (= T g / T l , where T g is the actual glass and T l the liquidus temperature) might be taken as one
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Phase Stability in Nanostructures

Advanced Engineering Materials, 2001
Nanostructured materials provide access to tailor-made materials properties by microstructural design. Excellent mechanical properties such as high strength or wear resistance are often found in nanocrystalline materials. For magnetic materials, the design of nanostructured composites offers advantages if the structural scales match the intrinsic ...
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Ukraine in the Stabilization Phase

2001
The Ukrainian economy survived a difficult crisis period with output reductions and hyperinflation that rivalled, and in most cases exceeded, those observed elsewhere. Its success in curbing inflation during the stabilization period is evident, but the output record remained mediocre.
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On the stability of the phase problem

Astronomy Letters, 2000
Phase retrieval of a signal given its intensity is considered as a problem of statistically estimating a set of unknown parameters, the Zernike coefficients. Specifically, the phase problem is presented in the context of classical wave optics in the Fresnel approximation.
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Novel high internal phase emulsions with gelled oil phase: Preparation, characterization and stability evaluation

Food Hydrocolloids, 2021
Like Mao, Yanxiang Gao, Ruoning Zhang
exaly  

Phase Self-Stabilization

1978
If x = x0(t) is the solution of the system of equations with the initial condition x0 (t0) = a, then the condition x0 (t + γ) = a evidently corresponds to the solution x = x0(t + γ). The set of motions of an autonomous dynamic system permits arbitrary shifts in time.
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