Results 41 to 50 of about 1,553,923 (243)

Thermodynamics of Congruent Oxidation

open access: yesHigh Temperature Materials and Processes, 2012
Congruent oxidation occurs when an alloy oxidizes at constant oxygen chemical potential and temperature to an oxide in which the ratio of metallic components is the same as in the alloy.
Jacob K.T., Adharsh R.
doaj   +1 more source

Theoretical analysis of miscibility gaps in the alkali-borates

open access: yesJournal of Research of the National Bureau of Standards Section A: Physics and Chemistry, 1974
A thermodynamic approach based on the regular solution concept is applied to the description of miscibility gap boundaries in the alkali-borate systems. It is suggested that in each system the structural units which control the entropy of mixing are the stoichiometric compounds at the apparent limit of the alkali-rich edge of the gap, and a complex ...
Pedro B, Macedo, Joseph H, Simmons
openaire   +2 more sources

Structural and Magnetic Characteristics of Fe72-xCoxCr28 (10 [PDF]

open access: yesIranian Journal of Materials Science and Engineering, 2023
In the present study, the structural and magnetic characteristics of Fe-Co-Cr system, with 28 at. % of Cr content, during casting, solutioning and thermo-magnetic treatment has been investigated.
Elham Ghasemi   +3 more
doaj  

Study of artifacts in thermodynamic and structural properties of Li–Mg alloy in liquid state using linear and exponential models

open access: yesHeliyon, 2021
Temperature-dependent interaction parameters of Redlich-Kister (R–K) polynomials for Li–Mg alloy in liquid phase have been optimized using experimental data in the framework of linear and exponential models.
R.K. Gohivar   +3 more
doaj   +1 more source

Lamellar miscibility gap in a binary catanionic surfactant-water system

open access: yes, 2007
The coexistence of two lamellar liquid-crystalline phases in equilibrium for binary surfactant-water systems is a rare and still puzzling phenomenon. In the few binary systems where it has been demonstrated experimentally, the surfactant is invariably ...
Marques, Eduardo F.   +3 more
core   +2 more sources

Superlubricity and Corrosion Inhibition Properties of Solvate Ionic Liquids in Hybrid Carbon Fiber Reinforced Plastic–Steel Interfaces

open access: yesAdvanced Engineering Materials, EarlyView.
Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees   +6 more
wiley   +1 more source

Miscibility gap in electrochemically oxygenated La2CuO4+ delta.

open access: yes, 1994
The miscibility gap of La2CuO4+δ was investigated by studying three electrochemically oxygenated samples with different oxygen contents, using variable-temperature neutron powder diffraction.
Jorgensen, JD   +6 more
core   +1 more source

Phase Behavior and Heat Capacity of {DPnP + Water} Mixtures at the Temperature Range of 273.15–338.15 K

open access: yesJournal of Chemistry, 2015
The differential scanning calorimetry method (DSC) was used to examine the miscibility in the {dipropylene glycol propyl ether (DPnP) + water} system.
Mariola Tkaczyk   +2 more
doaj   +1 more source

Influence of Alkali Metal Substitution on the Phase Transition Behavior of CsGaQ2 (Q = S, Se)

open access: yesCrystals, 2017
The formation of solid solution series Cs1−xMxGaQ2-mC64 (M = K, Rb; Q = S, Se; x = 0–1) was studied by X-ray diffraction and spectroscopic methods, revealing a complete miscibility of CsGaQ2-mC64 with RbGaQ2 and KGaSe2, and a large miscibility gap with ...
Daniel Friedrich   +3 more
doaj   +1 more source

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

open access: yesAdvanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero   +12 more
wiley   +1 more source

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