The Influence of the Firing Temperatures on the Phase Evolution, Microstructure, Dielectric and Strain Responses of BCTS Ceramics Prepared by the Solid State Combustion Technique

2018 ◽  
Vol 215 (21) ◽  
pp. 1701058
Author(s):  
Chittakorn Kornphom ◽  
Surirat Yotthuan ◽  
Suphornphun Chootin ◽  
Theerachai Bongkarn
Keyword(s):  
Solid State ◽  
Phase Evolution ◽  
Strain Responses ◽  
Combustion Technique

scholarly journals Phase Evolution and Amorphous Stability upon Solid-State Reaction in Superlattice-Like Ge–Sb–Te Combinatorial Thin Films

2020 ◽  
Vol 2 (12) ◽  
pp. 3880-3888
Author(s):  
Jian Hui ◽  
Qingyun Hu ◽  
Yuxi Luo ◽  
Tianxing Lai ◽  
Zhan Zhang ◽  
...  
Keyword(s):  
Thin Films ◽  
Solid State ◽  
Solid State Reaction ◽  
Phase Evolution

Prediction of Hypoeutectic Gray Iron Microstructure during Solidification and Solid Transformation Using Simple Fourier Model

2010 ◽  
Vol 457 ◽  
pp. 293-298 ◽  
Author(s):  
Mohamed Ahmed Taha Hanafi ◽  
Nahed A. El Mahallawy ◽  
Ahmed M. El-Sabbagh ◽  
Talat El-Benawy ◽  
Hasan F. Hadla
Keyword(s):  
Growth Rate ◽  
Cast Iron ◽  
Solid State ◽  
Rate Constants ◽  
Volume Fraction ◽  
Phase Evolution ◽  
Gray Iron ◽  
Cooling History ◽  
History Of ◽  
Fourier Model

Phases’ evolution during the solidification of a hypoeutectic 3.92% C-equivalence cast iron was modelled by considering the cooling history of the alloy from the melt, thus including both solidification and solid state transformations. Simple Fourier model was used to combine macroscopic heat flow and microscopic kinetics for phase evolution. Different cooling rates were obtained by casting cylinders and stepped plates. Measured number of primary austenitic nuclei, eutectic cells and volume fraction of phases during solidification (graphite, a-ferrite, pearlite and cementite), are correlated with the cooling rate. Growth rate constants for primary austenite, are found to be  = 8.7E-7, and n = 2.3. Growth rate constants for primary graphite (types A, B, and C), are found to be  =5.7E-7, and n = 2. The model matches with the experimental work where the error percent of modelling volume fractions of pearlite, graphite, ferrite and cementite ranges between 0.2 and 1.5%.

Phase Evolution of Yttrium Iron Garnet (YIG) Made by Solid State Sintering: Particle Size Effect

2016 ◽  
Vol 840 ◽  
pp. 276-280 ◽  
Author(s):  
Wan Fahmin Faiz Wan Ali ◽  
Norazharuddin Shah Abdullah ◽  
Mohd Fadzil Ain ◽  
Zainal Arifin Ahmad
Keyword(s):  
Solid State ◽  
Yttrium Iron Garnet ◽  
Reaction Pathway ◽  
Phase Evolution ◽  
Particle Size Effect ◽  
Reaction Rates ◽  
Yttrium Iron ◽  
Refinement Method ◽  
Mass Transfer Kinetics ◽  
Iron Garnet

The phase evolution of yttrium iron garnet (YIG) during reaction 3Y2O3-5Fe2O3 was investigated by modifying Fe2O3 particle sizes (FPS). Five different sizes of Fe2O3, (d50) are used to prepare YIG powder. Solid state reaction (SSR) was applied at 1200 °C in order to gain insight on the effect of FPS towards the YIG formation. Rietveld refinement method was used to quantify the amount of YIG yielded (%). Larger FPS (> 50 μm) initiates only 5Fe2O3 + 3Y2O3 à 3YFeO3 + Fe2O3 + Y3Fe5O12.. However, when the fine FPS (5 μm) is used, the reaction pathway was changed into 5Fe2O3 + 3Y2O3 à 6YFeO3 + 2Fe2O3 à 2Y3Fe5O12. These behaviors is explained that the smaller FPS consumed quickly to form YIG due to the smaller particle distance between Fe2O3 and Y2O3. This shall be leading to higher reaction rates (mass-transfer kinetics).

Solid state reaction induced phase evolution of Ni/Bi thin films

2017 ◽  
Author(s):  
Vantari Siva ◽  
Debi P. Datta ◽  
S. Prusty ◽  
Pratap K. Sahoo
Keyword(s):  
Thin Films ◽  
Solid State ◽  
Solid State Reaction ◽  
Phase Evolution
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