Overall crystallization kinetics of polymorphic propylene–ethylene random copolymers: A two-stage parallel model of Avrami kinetics

Polymer ◽  
2007 ◽  
Vol 48 (11) ◽  
pp. 3170-3182 ◽  
Author(s):  
Y.L. Chiari ◽  
M. Vadlamudi ◽  
R. Chella ◽  
K. Jeon ◽  
R.G. Alamo
2020 ◽  
Author(s):  
Liyuan Wang ◽  
Jiaxi Liu ◽  
Nan Lu ◽  
Zengchao Yang ◽  
Gang He ◽  
...  

2000 ◽  
Vol 650 ◽  
Author(s):  
Lance L. Snead ◽  
Martin Balden

ABSTRACTDensification and crystallization kinetics of bulk SiC amorphized by neutron irradiation is studied. The temperature of crystallization onset of this highly pure, fully amorphous bulk SiC was found to be between 875-885°C and crystallization is nearly complete by 950°C. In-situ TEM imaging confirms the onset of crystallization, though thin-film effects apparently alter the kinetics of crystallization above this temperature. It requires >1125°C for complete crystallization of the TEM foil. Annealing at temperatures between the irradiation and crystallization onset temperature is seen to cause significant densification attributed to a relaxation, or reordering, of the as-amorphized structure.


2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Yaroslava E. Poroshyna ◽  
Aleksander I. Lopato ◽  
Pavel S. Utkin

Abstract The paper contributes to the clarification of the mechanism of one-dimensional pulsating detonation wave propagation for the transition regime with two-scale pulsations. For this purpose, a novel numerical algorithm has been developed for the numerical investigation of the gaseous pulsating detonation wave using the two-stage model of kinetics of chemical reactions in the shock-attached frame. The influence of grid resolution, approximation order and the type of rear boundary conditions on the solution has been studied for four main regimes of detonation wave propagation for this model. Comparison of dynamics of pulsations with results of other authors has been carried out.


Author(s):  
Pratim Kumar Patra ◽  
Aanchal Jaisingh ◽  
Vishal Goel ◽  
Gurpreet Singh Kapur ◽  
Leena Nebhani

2021 ◽  
Vol 154 (14) ◽  
pp. 144703
Author(s):  
R. Scott Smith ◽  
M. Tylinski ◽  
Greg A. Kimmel ◽  
Bruce D. Kay

2021 ◽  
Vol 608 ◽  
pp. 412745
Author(s):  
Mohamed N. Abd-el Salam ◽  
E.R. Shaaban ◽  
F. Benabdallah ◽  
Abdelwahab M.A. Hussein ◽  
Mansour Mohamed

SPE Polymers ◽  
2021 ◽  
Vol 2 (1) ◽  
pp. 50-61
Author(s):  
Yuan‐Hsiang Chang ◽  
Yulin Zhang ◽  
Donyau Chiang ◽  
Fuqian Yang ◽  
Sanboh Lee

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