Results 61 to 70 of about 13,762 (298)

GASEOUS INTERDIFFUSION COEFFICIENTS

open access: yesJOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 1970
Binary interdiffusion coefficients for twenty pairs were determined using gas chromatography at several temperatures higher than room temperature under I atm. Of four equations used to predict the diffusion coefficients the correlation of Fuller, Schettler and Giddings gave the smallest arithmetic deviation of 5% of predicted values from experimental ...
NAGATA, ISAMU, HASEGAWA, TAKASHI
openaire   +2 more sources

Interdiffusion in Polyimide Thin Films

open access: yes, 1986
The interdiffusion in thin films of polyimide has been investigated using the forward recoil spectrometry (FRES) technique. Films 5–10 μm in thickness of polyamic acid spin coated onto a silicon substrate were imidized at a temperature TI. A second film,
T. P. Russell, W. Volksen, E. J. Kramer
core   +1 more source

Enhanced Magnetism in Cation‐Modulated Manganite Heterostructures

open access: yesAdvanced Materials Interfaces, EarlyView.
Magnetic contrast is introduced within a single manganite system via a small modulation of the cation ratio. Enhanced magnetization occurs in superlattices with small stoichiometric differences. The combined SQUID, polarized neutron reflectometry, and x‐ray absorption spectroscopy results are consistent with the interfacial electronic reconstruction ...
Sangkyun Ryu   +7 more
wiley   +1 more source

Interdiffusion in the Fe-Pt System

open access: yes, 2012
Diffusion-couple experiments are conducted in the Fe-Pt system. The phase boundary compositions of the phases measured in this study are found to be different than the compositions published previously.
Mondal, Avik   +2 more
core   +2 more sources

Oxidation and interdiffusion behavior of NiAlY/AlCrTaTiZr coating on Fe–Cr alloy prepared by magnetron sputtering

open access: yesJournal of Materials Research and Technology
An AlCrTaTiZr high-entropy alloy (HEA) as a diffusion barrier was prepared by sputtering to suppress interdiffusion across the NiAlY/Fe–Cr alloy interface.
Yuanmi Zhang   +3 more
doaj   +1 more source

Investigations of quaternary interdiffusion in a constituent system of high entropy alloys

open access: yesAIP Advances, 2015
Interdiffusion was investigated at 1000°C in a quaternary Fe-Ni-Co-Cr system, which is an essential constituent of many high-entropy alloys. The relative values of main and cross interdiffusion coefficients determined from concentrations and ...
Kaustubh Kulkarni   +1 more
doaj   +1 more source

S-Rich CdS1−yTey Thin Films Produced by the Spray Pyrolysis Technique

open access: yesEnergies, 2016
Understanding the properties of CdSTe ternary alloys is important because they always form at the interface between the CdS window layer and CdTe absorber layer in CdS/CdTe solar cells due to the intermixing.
Shadia J. Ikhmayies
doaj   +1 more source

Interdiffusion phenomena at partially miscible polymer interfaces

open access: yes, 2002
This research is focused on understanding the effect of miscibility on interdiffusion phenomena in bilayers of polystyrene (PS) and the statistically random copolymer, poly (styrene-r-4-bromostyrene) (PBS).
Jablonski, Erin
core   +1 more source

Artificial Synaptic Device Based on Self‐Aligned c‐In2O3 TFTs With an Ultrathin MgO Interlayer

open access: yesAdvanced Materials Technologies, EarlyView.
A coplanar synaptic thin‐film transistor based on crystalline In2O3 is demonstrated using a PECVD SiO2 gate insulator and an ultrathin MgO interlayer. The MgO interlayer suppresses excessive carrier density and may facilitate proton‐related interfacial polarization, resulting in stable counterclockwise hysteresis and synaptic behavior.
Samiran Roy, Jewel Kumer Saha, Jin Jang
wiley   +1 more source

Sodium enhances indium-gallium interdiffusion in copper indium gallium diselenide photovoltaic absorbers

open access: yesNature Communications, 2018
Sodium doping is necessary to achieve high performance in polycrystalline chalcopyrite solar cells, but retards gallium interdiffusion, and thus efficiency optimisation. Here, Colombara et al.
Diego Colombara   +18 more
doaj   +1 more source

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