Results 81 to 90 of about 2,828,055 (204)

Phase composition and transformations in magnetron-sputtered (Al,V)2O3 coatings

, 2019
Coatings of (Al1-xVx)2O3, with x ranging from 0 to 1, were deposited by pulsed DC reactive sputter deposition on Si(100) at a temperature of 550 {\deg}C. XRD showed three different crystal structures depending on V-metal fraction in the coating: {\alpha}-
Ahlgren, M., Alling, B., Carlström, C-F., Eklund, P., Göthelid, E., Hultman, L., Jõesaar, M. J., Landälv, L., Lu, J., Primetzhofer, Daniel   +9 more
core   +1 more source

Phase segregation in NaxCoO2 for large Na contents

, 2010
We have investigated a set of sodium cobaltates (NaxCoO2) samples with various sodium content (0.67 \le x \le 0.75) using Nuclear Quadrupole Resonance (NQR). The four different stable phases and an intermediate one have been recognized.
A. P. Bussandri, A. T. Boothroyd, A. V. Dooglav, C. Julien, G. J. Shu, H. Alloul, H. Alloul, H. Alloul, H. D. Bhatt, I. R. Mukhamedshin, I. R. Mukhamedshin, I. R. Mukhamedshin, I. Terasaki, J. Wooldridge, J.-W. Moon, K. Takada, M. L. Foo, N. B. Ivanova, P. Mendels, S. P. Bayrakci, T. A. Platova, T. A. Platova, W. G. Clark, Y. S. Meng   +23 more
core   +1 more source

An Effective Method to Estimate Composition Amplitude of Spinodal Decomposition for Atom Probe Tomography Validated by Phase Field Simulations

, 2012
Reasonable evaluation of composition amplitude in spinodal decomposition is a challenge to microanalysis of atom probe tomography, especially at early stages when phase separation is not prominent. This impedes quantitative analysis of spinodal structure
Xiong, Wei, Zhou, Jing, Ågren, John
core  

Liquid-Liquid Phase Separation in an Elastic Network

, 2017
Living and engineered systems rely on the stable coexistence of two interspersed liquid phases. Yet surface tension drives their complete separation. Here we show that stable droplets of uniform and tuneable size can be produced through arrested phase ...
Dufresne, Eric R., Fanelli, Nicoló, Ijavi, Mahdiye, Sai, Tianqi, Smith-Mannschott, Katrina, Style, Robert W., Wilen, Lawrence A., Xu, Qin   +7 more
core   +2 more sources

Microstructure and Phase Composition of Yttria-Stabilized Zirconia Nanofibers Prepared by High-Temperature Calcination of Electrospun Zirconium Acetylacetonate/Yttrium Nitrate/Polyacrylonitrile Fibers

Fibers, 2019
For the first time, dense nanofibers of yttria-stabilized tetragonal zirconia with diameter of ca. 140 nm were prepared by calcination of electrospun zirconium acetylacetonate/yttrium nitrate/polyacrylonitrile fibers at 1100−1300 °C.
Vyacheslav V. Rodaev, Svetlana S. Razlivalova, Alexander I. Tyurin, Andrey O. Zhigachev, Yuri I. Golovin   +4 more
doaj   +1 more source

Metastable phases and macroheterogeneous composites

Journal of Physics and Electronics, 2021
The way to control the interfacial reactions that processes during infiltration of macroheterogeneous composite materials is suggested. The idea is to combine the stable and metastable phases in the filler’s structure which dissolves at a different rate in the molten binder.
openaire   +2 more sources

Effect of Air Atomization Pressure at High-Speed Spraying of Gas-Thermal Coating from High-Chromium Steel on its Construction and Wear Resistance

Механика машин, механизмов и материалов, 2018
The influence of the pressure of the atomizing air at high-speed spraying of the gas-thermal coating from high-chromium steel 20Kh13 on the structure and wear resistance of the coating is studied. It is shown that sprayed gas-thermal coatings from 20Kh13
Evgeniy V. Astrashab, Marat А. Belotserkovsky, Alexander N. Grigorchik, Vladimir A. Kukareko, Aleksey V. Sosnovskiy   +4 more
doaj  

High-Temperature Wear Behaviour of Spark Plasma Sintered AlCoCrFeNiTi_0.5 High-Entropy Alloy

Entropy, 2019
In this study, the wear behaviour of a powder metallurgically produced AlCoCrFeNiTi0.5 high-entropy alloy (HEAs) is investigated at elevated temperatures.
Martin Löbel, Thomas Lindner, Robert Pippig, Thomas Lampke   +3 more
doaj   +1 more source

Estimate of conjugate gamma and gamma prime compositions in Ni-base superalloys [PDF]

Approaches for estimating the composition of the matrix phase of alloys from the melt composition are reviewed. The first method is based on assigning essentially fixed stoichiometry to precipitating phases and is typified by PHACOMP.
Dreshfield, R. L.
core   +1 more source

Phase Clocks for Transient Fault Repair

, 1999
Phase clocks are synchronization tools that implement a form of logical time in distributed systems. For systems tolerating transient faults by self-repair of damaged data, phase clocks can enable reasoning about the progress of distributed repair ...
Herman, Ted
core   +3 more sources