Results 31 to 40 of about 26,195 (294)

Preparation of glass-ceramic in Li2O-Al2O3-GeO2-P2O5 system [PDF]

open access: yesProcessing and Application of Ceramics, 2013
The results of preparation and structural characterization of glass-ceramics from the system Li2O-Al2O3-GeO2-P2O5 are shown in this paper. The crystallization behaviour of the selected glass was examined under non-isothermal and isothermal ...
Jelena D. Nikolić   +6 more
doaj   +1 more source

DYNAMIC SIMULATION OF A NON-ISOTHERMAL MSMPR CRYSTALLIZER

open access: yesChemical Engineering Communications, 1984
The effect of including temperature variations in the dynamic simulation of an MSMPR cooling crystallizer is investigated. Power law nucleation and growth kinetic models incorporating an Arrhenius temperature dependence are used. The effects of changes in the input variables feed temperature, feed flowrate and feed concentration on the output variables
Akoglu, K., Tavare, N. S., Garside, J.
openaire   +2 more sources

Non-isothermal melt crystallization of cuspidine in CaO-SiO2-CaF2 based glasses [PDF]

open access: yes, 2018
Non-isothermal crystallization kinetics of cuspidine (Ca4Si2O7F2) in CaO-SiO2-CaF2 based glass system has been investigated using a DSC to understand and improve the performances of mold fluxes applied to commercial continuous casting of steels.
Wang, H   +4 more
core   +1 more source

Comparative study of thermal stability and crystallization kinetics between melt-spun and bulk Pd77.5Cu6Si16.5 metallic glasses

open access: yesJournal of Materials Research and Technology, 2022
A comparative study on the thermal stability and kinetics of crystallization of both melt–spun and bulk Pd77.5Cu6Si16.5 metallic glasses was performed. Rapidly quenched Pd77.5Cu6Si16.5 ribbon and as–cast bulk metallic glass (BMG) sample were produced by ...
Y.C. Tang   +7 more
doaj   +1 more source

Crystallization of isotactic polypropylene: the effect of fiber surface [PDF]

open access: yesJournal of the Serbian Chemical Society, 2006
Different quantitative approaches enabling the determination of the basic parameters of polymer crystallization were applied to characterize the isothermal and non-isothermal crystallization of homo- and MAH-modified PP in the presence of glass and ...
Bogoeva-Gaceva Gordana, Grozdanov Anita
doaj   +3 more sources

Crystallization and Melting Behavior of Biodegradable Poly(L-lactic acid)/Talc Composites

open access: yesE-Journal of Chemistry, 2012
Crystallization and melting behavior of Poly(L-lactic acid)(PLLA)/Talc composites with different talc content were investigated in detail. The addition of talc can increase the overall crystallization rate of PLLA, 5%talc makes the melt-crystallization ...
Yan-Hua Cai
doaj   +1 more source

Crystallization and melting behavior of nanoclay-containing polypropylene/poly(trimethylene terephthalate) blends

open access: yeseXPRESS Polymer Letters, 2012
This contribution concerns preparation and characterization of polypropylene (PP)/poly(trimethylene terephthalate) (PTT) melt-mixed blends in the presence of organically-modified montmorillonite nanoclays and functional compatibilizers. Immiscibility and
S. H. Jafari   +5 more
doaj   +1 more source

Research on Crystallization and Melting Behaviors of Rice Bran Oil

open access: yesLiang you shipin ke-ji, 2021
In this paper, the isothermal and non-isothermal crystallization and melting behaviors of rice bran oil (RBO) are studied, and the composition of the precipitates under cold temperatures from RBO is analyzed.The results show that the isothermal shear ...
ZHOU Shuai   +3 more
doaj   +1 more source

Non-isothermal crystallization of As2Se3 glass

open access: yesBulletin of Materials Science, 1987
The results of non-isothermal crystallization studies performed at different heating rates on batches of As2Se3 glasses prepared from melts at 400°C, 600°C and 800°C are reported. The peak temperature of crystallizationTp, the enthalpy of crystallization ΔHc and the activation energy for crystallizationEc are independent of the melt temperature used in
A Giridhar, Sudha Mahadevan, A K Singh
openaire   +2 more sources

CRYSTALLIZATION OF POLYPROPYLENE: APPLICATION OF DIFFERENTIAL SCANNING CALORIMETRY PART I. ISOTHERMAL AND NON-ISOTHERMAL CRYSTALLIZATION [PDF]

open access: yes, 2017
A b s t r a c t: Theoretical background of the crystallization of isotactic polypropylene is summarized with respect to the potential of DSC method applied for the analysis of isothermal and non-isothermal processes.
Gordana Bogoeva-Gaceva, Luljeta Raka
core   +1 more source

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