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Determination of the Apparent Activation Energy of Concrete Carbonation李果,YUAN Yingshu,DU Jianmin,JI YongshengJiangsu Key Laboratory of Environmental Impact and Structural Safety in Engineering,China... quickly the concrete carbonates,and at the same time it is also affected by environmental relative humidity.Thereafter,the apparent activation energy E a of concrete carbonation reaction was obtained......
Apparent activation energy for spontaneous combustion of sulfide concentrates in storage yard YANG Fu-qiang1, 2, WU Chao1, 2, CUI Yan1, 2, LU Guang1, 2 1. School of Resources and Safety...; the apparent activation energy values change from 36 to 160 kJ/mol in different temperature ranges; sulfur-rich sulfide and iron sulfide concentrates have lower apparent activation energy than copper......
with apparent activation energy E = (215±10) kJ/mol and E = (200±10) kJ/mol at T = 813 to 1020 K, respectively. With relatively thick sample layer between 793 and 1273 K, the CaCO3 decomposition could...Assessment of the apparent activation energies for gas/solid reactions- carbonate decompositionJianhua Liu and Jiayun ZhangMetallurgical Engineering School, University of Science and Technology......
J. Cent. South Univ. (2019) 26: 1362-1373 DOI: https://doi.org/10.1007/s11771-019-4092-9 Magneto-hydrodynamic flow of squeezed fluid with binary chemical reaction and activation energy S. AHMAD, M.... The processes of heat and mass transport incorporate the temperature-dependent binary chemical reaction with modified Arrhenius theory of activation energy function which is not yet disclosed for squeezing flow......
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% with a m-value of 0.35was obtained at 613K and a initial strain rate of 1.67×10-2 S-1. The apparent activation energy (98k J/mol) approximates that for grain boundary diffusion (92k J/mol)in magnesium... an important role in the superplastic deformation. Key words:magnesium matrix composite; superplasticity; apparent activation energy; [全文内容正在添加中] ......
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activation energy at Tg and Tx was calculated. Key words: Mg65Cn25Gd10 alloy; magnesium amorphous alloys; mechanical alloying; thermal stability; apparent activation energy 1 Introduction Although... from the DSC traces with an accuracy of ±1 K. The apparent activation energy E for the glass transition and the crystallization transition can be evaluated by Kissinger equation: = ......
from apparent activation energy together. The results show that, when the calcination temperature is low, few magnesium ferrites form in low silica magnesium pellets and unreacted MgO exists... the pellet swelling rate. Key words: low silica magnesium pellet; calcination temperature; reduction swelling rate; apparent activation energy 还原膨胀率是球团矿的重要冶金性能指标之一.一般球团矿在还原过程中都会出现体积膨胀,强度相应降低的情况.球团矿体积膨胀......
