Results 171 to 180 of about 42,078 (227)

Structure-properties correlations in poly(ε-caprolactone)/poly(styrene-co-acrylonitrile)/nanosilica mixtures: Interrelationship among phase behavior, morphology and non-isothermal crystallization kinetics

, 2020
In this work, the effects of amorphous poly(styrene-co-acrylonitrile) (SAN) chains and hydrophilic and hydrophobic nanosilica at different loadings on the non-isothermal crystallization kinetics of PCL phase have been evaluated using different ...
Zahra Mohtaramzadeh, Farkhondeh Hemmati, Sina Farahani Kasbi, V. Goodarzi, K. Arnhold, H. Khonakdar   +5 more
semanticscholar   +1 more source

A study of the non-isothermal crystallization kinetic of Zn10Se90 glass

Applied Physics A, 2015
The glass transition and the crystallization kinetics of Zn10Se90 glass by differential thermal analysis (DTA) technique under non-isothermal conduction were studied. The effective activation energies of the glass transition and the crystallization have been evaluated on the basses of the Kissinger and Matusita et al. approximations. Kinetic parameters
M. A. Abdel-Rahim, M. M. Hafiz, A. Y. Abdel-Latief, Alaa M. Abd-Elnaiem, A. Elwhab. B. Alwany   +4 more
openaire   +1 more source

Non-isothermal crystallization kinetics for CaO–Fe2O3 system

Journal of Thermal Analysis and Calorimetry, 2015
The CaO–Fe2O3 system is the most significant liquid phase for fluxed sinter. However, the crystallization kinetics of CaO·Fe2O3 (CF), which directly contributes to the physical and metallurgical properties of sinter, is rarely reported. In this study, the crystallization kinetics of CaO·Fe2O3 system was analyzed using the mean of non-isothermal ...
Chengyi Ding, Xuewei Lv, Yun Chen, Chenguang Bai   +3 more
openaire   +1 more source

Kinetics of non-isothermal crystallization in FeNiPC(Nb) alloys

Thermochimica Acta, 2020
Abstract The effects of minor Nb addition on the crystallization mechanism for a FeNiPC(Nb) amorphous alloy were studied via investigating its non-isothermal crystallization kinetics. With minor Nb addition, the thermal stability of the alloy increases as evidenced by the enlargement of the supercooled liquid region.
S.S. Jiang, L. Zhu, H. Zheng, Y.G. Wang
openaire   +1 more source

Kinetics of non‐isothermal sorption in molecular sieve crystals

AIChE Journal, 1980
AbstractA mathematical model is developed to describe non‐isothermal sorption kinetics and used to interpret experimental uptake curves for CO2 in 4A zeolite and for CO2 and in C5H12 in 5A zeolite. The model assumes that the dominant mass transfer resistance is intracrystalline diffusion while the major resistance to heat transfer is the external heat ...
Douglas M. Ruthven, Lap‐Keung Lee, Hayrettin Yucel   +2 more
openaire   +1 more source

Non-isothermal crystallization kinetics of nano-sized amorphous TiO2 prepared by facile sonochemical hydrolysis route

Ceramics International, 2019
The synthesized nano-sized amorphous TiO 2 was successfully obtained by sonochemical hydrolysis of titanium tetraisopropoxide (TTIP). The microstructure and amorphous feature of TiO 2 were examined by X-ray diffraction (XRD) as well as high-resolution ...
S. Mansour
semanticscholar   +1 more source

Non-isothermal crystallization kinetics of kaolin modified polyester

Journal of Wuhan University of Technology-Mater. Sci. Ed., 2011
Fiber-class modified kaolin and PET have been blended in the twin-screw and granulated to chips containing 4 wt% of kaolin. Non-isothermal crystallization process of kaolin modified polyester was investigated using a differential scanning calorimetry (DSC), and the addition of kaolin enhances either the melting temperature (Tm) or the crystallization ...
Ruixin Zhang, Mingbo Gu, Guoqiang Chen
openaire   +1 more source

Crystallization kinetics of SrBi2B2O7 glasses by non-isothermal methods

Journal of Thermal Analysis and Calorimetry, 2009
Transparent glasses of SrBi2B2O7 (SBBO) were fabricated via the conventional melt-quenching technique. The amorphous and the glassy nature of the as-quenched samples were, respectively, confirmed by X-ray powder diffraction (XRD) and differential scanning calorimetry (DSC).
Majhi, Koushik, Varma, KBR
openaire   +1 more source

Non-isothermal crystallization kinetics of Poly(Butylene succinate) (PBS) nanocomposites with different modified carbon nanotubes

Polymer, 2018
In this study, the effect of surface modification (acid treatment and chemical modification) of multi-walled carbon nanotubes (MWCNT) on the non-isothermal crystallization kinetics of poly (butylene succinate) (PBS) was studied.
Tugay Yarıcı, M. Kodal, G. Ozkoc
semanticscholar   +1 more source

Non-isothermal kinetic equations applied to crystallization of glasses

Thermochimica Acta, 1993
Abstract Three of the most important equations for evaluating the activation energy of a chemical reaction are discussed in the present paper: a modification of the Kissinger equation, a graphic method and a derivative method. They are based on thermal analysis measurements under non-isothermal conditions.
BARBIERI, Luisa, LEONELLI, Cristina, MANFREDINI, Tiziano, ROMAGNOLI, Marcello, PELLACANI, Gian Carlo, SILIGARDI, Cristina   +5 more
openaire   +2 more sources