Results 61 to 70 of about 93,771 (188)

Monte Carlo Simulation of Linear Polymer Thermal Depolymerization under Isothermal and Dynamic Modes

International Journal of Polymer Science, 2011
Kinetics of linear polymer thermal depolymerization under isothermal and dynamic TGA modes was simulated by the Monte Carlo method. The simulation was carried out on model arrays having the same initial degree of polymerization 𝑃𝑛=100 and different width
Elena V. Bystritskaya, Oleg N. Karpukhin, Alla V. Kutsenova   +2 more
doaj   +1 more source

Interplay Between Dispersion, Nucleation, and Crystallization in HDPE/Graphene Nanocomposites Processed Under Thermokinetic Conditions

Polymer Engineering &Science, Volume 66, Issue 10, Page 7691-7707, October 2026.
Thermokinetic processing controls graphene fragmentation and dispersion in HDPE, promoting heterogeneous nucleation and multistep crystallization. The balance between nucleation enhancement and chain mobility restriction governs the final crystalline structure and material performance.
Lucas J. S. Nascimento, Tainá dos S. Guatimosim, Fernanda T. G. Dias, Sandro C. Amico, Otávio Bianchi   +4 more
wiley   +1 more source

Microstructure evolution and physical-based diffusion constitutive analysis of Al-Mg-Si alloy during hot deformation

Materials & Design, 2019
The hot deformation behavior of Al-Mg-Si alloy is studied based on diffusion mechanism. The quantity of low angle grain boundaries increases rapidly, accompanied by the formation of subgrains and recrystallization grains with the increase of strain ...
Shuhui Liu, Qinglin Pan, Mengjia Li, Xiangdong Wang, Xin He, Xinyu Li, Zhuowei Peng, Jianping Lai   +7 more
doaj   +1 more source

Effect of Silver Nanoparticles on the Melting Behavior, Isothermal Crystallization Kinetics and Morphology of Polyoxymethylene

Crystals, 2020
In this work, the effects of silver (Ag) nanoparticles on the melting behavior, isothermal crystallization kinetics, and morphology of polyoxymethylene (POM) were studied.
Yicheng Zeng, Yang Liu, Xun Zhang, Lumin Wang, Hongliang Huang, Yongli Liu, Guangrui Qi, Minghua Min, Ying Li   +8 more
doaj   +1 more source

Hydrogen Storage in Crystalline and Amorphous High‐Entropy Alloys: Linking Absorption/Desorption Kinetics to Structural–Morphological–Compositional Evolution

Rare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT This study examines the hydrogen storage behavior in amorphous high‐entropy alloys (HEA), aiming to address the limited understanding of poorly crystalline systems compared to their crystalline counterparts, with emphasis on absorption/desorption kinetics and structural, morphological, and compositional evolution during hydrogenation ...
Ruiran Guo, Yi‐Kai Lien, Wei‐Chen Liu, Chun‐Ming Wu, Max Avdeev, Barton Arkhurst, Ghazaleh Bahman Rokh, Honghao Li, Hong‐Yu Chen, Sammy Lap Ip Chan   +9 more
wiley   +1 more source

Experimental and numerical study on the temperature sensitivity of the dynamic recrystallization activation energy and strain rate exponent in the JMAK model

Journal of Materials Research and Technology, 2019
The temperature dependency of the dynamic recrystallization (DRX) activation energy and strain rate exponent, which are major material properties in the Johnson–Mehl–Avrami–Kolmogorov (JMAK) model affecting the DRX phenomenon, are quantitatively ...
Missam Irani, Sugun Lim, Mansoo Joun
doaj   +1 more source

Study on Transformation Mechanism and Kinetics of α’ Martensite in TC4 Alloy Isothermal Aging Process

Crystals, 2020
The law of microstructure evolution and transformation mechanism of the α′ martensite decomposition during 400−600 °C were studied by the isothermal dilatometry.
Hui Yu, Wei Li, Songsong Li, Haibei Zou, Tongguang Zhai, Ligang Liu   +5 more
doaj   +1 more source

Direct Synthesis of High‐Valence Protein@UiO‐66 Composites: Linking Crystallization Pathways to Protein Encapsulation

Advanced Materials, Volume 38, Issue 51, 11 September 2026.
This work reports a direct, biocompatible method to synthesize UiO‐66, enabling one‐step encapsulation of proteins without compromising crystallinity or activity. Using advanced in situ and ex situ techniques, the study reveals that proteins integrate concurrently with MOF growth, forming crystalline protein@UiO‐66 nanoparticles, and provide insight ...
Jesús Cases Díaz, Jana Glatz, Elisa Merced Olivas, Ramon Pons, Joseph P. Patterson, Mónica Giménez‐Marqués   +5 more
wiley   +1 more source

Isothermal crystallization kinetics of poly(ethylene terephthalate) and poly(methyl methacrylate) blends

eXPRESS Polymer Letters, 2007
Different kinetic models like the Avrami, Tobin and Urbanovici-Segal models have been applied for determining the isothermal crystallization kinetics of virgin poly(ethylene terephthalate) (PET) and PET/poly(methyl methacrylate) (PMMA) blends.
doaj   +1 more source

VO2 Hollow Nano‐Reactor: Enabling Near‐Room‐Temperature and Ultrafast Hydrogen Release From α‐AlH3

Rare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT α‐phase aluminum trihydride (α‐AlH3) is a promising high‐capacity hydrogen storage material, but its practical application is limited by slow dehydrogenation kinetics and high reaction temperatures. This study demonstrates, for the first time, effective modulation of the hydrogen release kinetics of AlH3 by employing a hollow nanostructured ...
Haoyuan Zheng, Hua Ning, Chen Jin, Shuzhong Wang, Yadong Wang, Shixuan He, Haizhen Liu, Lingfeng Wang, Xinhua Wang   +8 more
wiley   +1 more source