Results 281 to 290 of about 4,707,673 (337)

Non-isothermal oxidation kinetics of nano-laminated Cr2AlC MAX phase

Journal of Alloys and Compounds, 2019
A highly pure Cr2AlC MAX phase is prepared through the sintering method by varying the aluminum content. The non-isothermal oxidation kinetics of the Cr2AlC phase is examined through a TGA/DTA technique, at variable heating rates (10, 20, 30, 40 °C/min).
Piyush Sharma, O. Pandey
semanticscholar   +1 more source

Isothermal oxidation and thermal cyclic behaviors of YSZ and double-layered YSZ/La2Zr2O7 thermal barrier coatings (TBCs)

Surface & Coatings Technology, 2018
TBCs provide protection of superalloy substrates against harsh environments in gas turbine engines. Typical TBCs consist of two main coating layers called bond and top coat. Recently, zirconates have become attractive top coat materials as an alternative
Kadir Mert Doleker, Yasin Ozgurluk, A. Karaoglanli   +2 more
semanticscholar   +1 more source

Investigation of isothermal and no-isothermal oxidation of SiC powder using an analytic kinetic model

Applied Surface Science, 2010
The oxidation of SiC powder has been investigated under non-isothermal and isothermal conditions. X-ray diffraction (XRD) analysis and transmission electron microscopy (TEM) were employed to investigate the morphological development during the oxidation.
Yong Li, Yun Yang, Zhi-Ming Lin, Jiang-Tao Li   +3 more
openaire   +1 more source

Oxidation kinetics of magnesium particles determined by isothermal and non-isothermal methods of thermogravimetric analysis

Combustion and Flame, 2022
Abstract Knowledge of the oxidation kinetics of magnesium (Mg) particles is important for the development of advanced propulsion and power systems based on combustion of metals. However, reports on the high-temperature oxidation of Mg powders in oxygen are contradictory.
Sergio Cordova, Kevin Estala-Rodriguez, Evgeny Shafirovich   +2 more
openaire   +1 more source

Effects of isothermal oxidation on microstructure and mechanical properties of thermal barrier coatings

Ceramics International, 2019
An 8 (wt.) % yttria partially stabilized zirconia (YSZ) coating isothermally oxidized in air at 1100 °C for up to 3000 h was investigated by means of indentation and electron microscopy analyses.
Y.-Z. Liu, X.-B. Hu, Y.-L. Zhu, H. Wei, V. Dravid, W.-W. Zhang   +5 more
semanticscholar   +1 more source

Isothermal oxidation behaviors of FeCoV and FeCoVNb alloys

Journal of Applied Physics, 2009
The present study investigates the isothermal oxidation of two iron-cobalt based alloys at 500 °C for up to 5000 h. Both alloys exhibit crack-free oxide layers consist of a porosity-free iron rich outer layer and a solute rich inner layer populated with islands of solute oxides and porosities.
Zafer Turgut, John C. Horwath, Meiqing Huang, Jack E. Coate   +3 more
openaire   +1 more source

Modeling of TG curves of isothermal oxidation of graphite

Materials Science and Engineering: A, 2008
Abstract By thermogravimetric analysis technique, TG curves of isothermal oxidation of graphite were obtained and the curves of weight loss versus reduced time were also obtained. The trend of weight loss versus reduced time curves of oxidation of graphite for different temperatures is unified in the temperature range with identical oxidation ...
Weiming Guo, Hanning Xiao, Wenming Guo
openaire   +1 more source

Isobaric and isothermal hysteresis in metal hydrides and oxides

Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 1986
An analysis is presented of the thermodynamics of both isothermal and isobaric hysteresis, leading to equations for the calculation of the irreversible entropy production and the loss of free energy in hysteresis cycles of both kinds. The status of ‘apparent’ enthalpies derived from the temperature dependence of isothermal data is examined and two ...
Ted. B. Flanagan, J. Dean Clewley, Toshiro Kuji, Choong-Nyeon Park, Douglas H. Everett   +4 more
openaire   +1 more source

Isothermal oxidation of the Ti2AlC MAX phase coatings deposited by kerosene-fuelled HVOF spray

Corrosion Science, 2018
Isothermal oxidation of 100 μm Ti2AlC coatings deposited by kerosene-fuelled high velocity oxy-fuel spray have been carried out between 200 and 1000 °C for 5 h at 200 °C intervals.
Zheng Zhang, D. Lai, Suo H. Lim, J. Chai, Shi-Jie Wang, Hong-Mei Jin, Ji-Sheng Pan   +6 more
semanticscholar   +1 more source

Non-isothermal kinetic of oxidation of tungsten carbide

Journal of Thermal Analysis and Calorimetry, 2007
Tungsten carbide, WC, has shown dissimilar thermal behavior when it is heated on changeable heating rate and flow of oxidant atmosphere. The oxidation of WC to WO3 tends to be in a single and slow kinetic step on slow heating rate and/or low flux of air.
Ribeiro, Clovis Augusto, de Souza, W. R., Crespi, Marisa Spirandeli, Gomes Neto, José Anchieta, Fertonani, F. L.   +4 more
openaire   +2 more sources