scholarly journals Performance and fuel cell applications of reacted ball-milled MgH2/5.3 wt% TiH2 nanocomposite powders

RSC Advances ◽  
2018 ◽  
Vol 8 (67) ◽  
pp. 38175-38185 ◽  
Author(s):  
Mohamed Sherif El-Eskandarany ◽  
Abdullah Alkandary ◽  
Fahad Aldakheel ◽  
Mariam Al-Saidi ◽  
Fahad Al-Ajmi ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Fuel Cell ◽  
High Energy ◽  
High Energy Milling ◽  
Nanocomposite Powders ◽  
Thermal Stability Of

The present study aimed to enhance the kinetics behavior and destabilize the thermal stability of MgH2 powder by high-energy milling of Mg powder under 50 bar of H2 for several hours using Ti-balls as the milling media.

scholarly journals Effects of high mechanical treatment and long-term annealing on crystal structure and thermal stability of Ti2O3 nanocrystals

RSC Advances ◽  
2020 ◽  
Vol 10 (43) ◽  
pp. 25717-25720
Author(s):  
Albina A. Valeeva ◽  
Svetlana Z. Nazarova ◽  
Hartmuth Schröttner ◽  
Evgeny Yu. Gerasimov ◽  
Andrey A. Rempel
Keyword(s):  
Crystal Structure ◽  
Thermal Stability ◽  
Magnetic Susceptibility ◽  
Mechanical Treatment ◽  
High Energy ◽  
High Energy Milling ◽  
The Stability ◽  
Thermal Stability Of

The effect of high-energy milling and long-term annealing on the stability of Ti2O3 nanocrystals was studied using a magnetic susceptibility method.

INFLUENCE OF HIGH ENERGY RADIATION ON THE THERMAL STABILITY OF POLYAMIDE-6

1998 ◽  
pp. 236-251 ◽  
Author(s):  
A.I. Balabanovich ◽  
W. Schnabel ◽  
G.F. Levchik ◽  
S.V. Levchik ◽  
C.A. Wilkie
Keyword(s):  
Thermal Stability ◽  
Polyamide 6 ◽  
High Energy ◽  
High Energy Radiation ◽  
Energy Radiation ◽  
Thermal Stability Of

scholarly journals Synergistic Effect of 2-Acrylamido-2-methyl-1-propanesulfonic Acid on the Enhanced Conductivity for Fuel Cell at Low Temperature

Membranes ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 426
Author(s):  
Murli Manohar ◽  
Dukjoon Kim
Keyword(s):  
Thermal Stability ◽  
Weight Loss ◽  
Fuel Cell ◽  
Membrane Structure ◽  
Polymer Electrolyte Membranes ◽  
Aliphatic Chain ◽  
Electrolyte Membranes ◽  
Ft Ir ◽  
Enhanced Conductivity ◽  
Thermal Stability Of

This present work focused on the aromatic polymer (poly (1,4-phenylene ether-ether-sulfone); SPEES) interconnected/ cross-linked with the aliphatic monomer (2-acrylamido-2-methyl-1-propanesulfonic; AMPS) with the sulfonic group to enhance the conductivity and make it flexible with aliphatic chain of AMPS. Surprisingly, it produced higher conductivity than that of other reported work after the chemical stability was measured. It allows optimizing the synthesis of polymer electrolyte membranes with tailor-made combinations of conductivity and stability. Membrane structure is characterized by 1H NMR and FT-IR. Weight loss of the membrane in Fenton’s reagent is not too high during the oxidative stability test. The thermal stability of the membrane is characterized by TGA and its morphology by SEM and SAXS. The prepared membranes improved proton conductivity up to 0.125 Scm−1 which is much higher than that of Nafion N115 which is 0.059 Scm−1. Therefore, the SPEES-AM membranes are adequate for fuel cell at 50 °C with reduced relative humidity (RH).

Deep Defects in 3C-SiC Generated by H+- and He+-Implantation or by Irradiation with High-Energy Electrons

2010 ◽  
Vol 645-648 ◽  
pp. 439-442 ◽  
Author(s):  
Michael Weidner ◽  
Lia Trapaidze ◽  
Gerhard Pensl ◽  
Sergey A. Reshanov ◽  
Adolf Schöner ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Charge State ◽  
Cross Section ◽  
Capture Cross Section ◽  
Pulse Length ◽  
High Energy ◽  
Capture Cross ◽  
Intrinsic Defects ◽  
High Energy Electrons ◽  
Thermal Stability Of

Intrinsic defects in 3C-SiC are generated by implantation of H+- and He+-ions or irra¬diation with high energy electrons. The defect parameters and the thermal stability of the observed defects are determined. The capture-cross-section of the W6-center is directly measured by variation of the filling pulse length. The charge state of the W6-center is obtained from double-correlated DLTS investigations according to the Poole-Frenkel effect.

Thermal Decomposition of Supersaturated Ti1-xAlxN Solid Solution Synthesized by High-Energy Milling

2016 ◽  
Vol 9 ◽  
pp. 82-89
Author(s):  
Maya Radune ◽  
Michael Zinigrad ◽  
David Fuks ◽  
S. Hayun ◽  
Nachum Frage
Keyword(s):  
Thermal Stability ◽  
Solid Solution ◽  
Spinodal Decomposition ◽  
Density Functional ◽  
Chemical Deposition ◽  
High Energy ◽  
Nucleation And Growth ◽  
Scanning Calorimetry ◽  
Wide Range ◽  
Thermal Stability Of

Supersaturated titanium-aluminum nitride (Ti1-xAlxN) is a very attractive material for a wide range of applications due to its high oxidation and wear resistance accompanied by high strength, hardness, thermal conductivity and thermal shock resistance. Currently, its applications are limited to coatings obtained by physical or chemical deposition. Bulk materials based on Ti1-xAlxN may be fabricated by powder metallurgy approach using powders synthesized by high-energy ball milling (HEBM), which composition corresponds to supersaturated Ti1-xAlxN solid solution. In the present study, thermal stability of the supersaturated Ti1-xAlxN solid solution was investigated. According to the quasi-binary TiN-AlN phase diagram, constructed using density functional theory (DFT) analysis, the concentration ranges, where decomposition takes place through spinodal decomposition or through nucleation and growth, were determined. Experimental study on thermal stability of solid Ti1-xAlxN solution powder was conducted by means of differential scanning calorimetry (DSC), Brunauer-Emmited-Teller (BET) and XRD. The results indicated that spinodal decomposition of Ti1-xAlxN starts at 800°C, while at temperature higher than 1300°C regular decomposition (nucleation and growth) is occur.

scholarly journals Pushing the limit of layered transition metal oxide cathodes for high-energy density rechargeable Li ion batteries

2018 ◽  
Vol 11 (5) ◽  
pp. 1271-1279 ◽  
Author(s):  
U.-H. Kim ◽  
D.-W. Jun ◽  
K.-J. Park ◽  
Q. Zhang ◽  
P. Kaghazchi ◽  
...  
Keyword(s):  
Thermal Stability ◽  
High Energy ◽  
High Energy Density ◽  
Li Ion Batteries ◽  
Two Phase ◽  
Oxide Cathodes ◽  
Li Ion ◽  
Layered Transition Metal ◽  
Thermal Stability Of ◽  
W Doping

W-doping produced the two-phase (Fm3̄m and R3̄m) structure which improved the cycling and thermal stability of the Ni-rich layered cathodes.

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