Crystallization Kinetics of Amorphous Griseofulvin by Pattern Fitting Procedure Using X-Ray Diffraction Data

2007 ◽  
Vol 24 (5) ◽  
pp. 880-887 ◽  
Author(s):  
Shigeo Yamamura ◽  
Rieko Takahira ◽  
Yasunori Momose
1997 ◽  
Vol 36 (5) ◽  
pp. 629-641 ◽  
Author(s):  
V. Rossi Albertini ◽  
G. B. Appetecchi ◽  
R. Caminiti ◽  
F. Croce ◽  
F. Cilloco ◽  
...  

2017 ◽  
Vol 19 (12) ◽  
pp. 8496-8503 ◽  
Author(s):  
Nicolas Boulanger ◽  
Victor Yu ◽  
Michael Hilke ◽  
Michael F. Toney ◽  
David R. Barbero

In situ X-ray diffraction analysis of P3HT films during cooling down on both Si and G.


2014 ◽  
Vol 775-776 ◽  
pp. 244-249 ◽  
Author(s):  
André Luís Luza ◽  
Débora Cristina Niero Fabris ◽  
Edivelton Soratto Gislon ◽  
Morgana de Medeiros Machado ◽  
Oscar Rubem Klegues Montedo

The main objective of this work was to study the crystallization kinetics of glass-ceramic obtained from steel waste. Two compositions were melted at about 1350 °C. The obtained frits were dried and re-melted. Each composition was then wet ground, dried, and chemically characterized (X-ray fluorescence and atomic absorption spectrometry), structurally (X-ray diffraction), and thermally (thermal differential analysis). Then the powders were compacted and the samples were dried and heat treated in a kiln between 690 and 890 °C. After, the crystallized bodies were ground and the crystalline phases were identified by X-ray diffraction. Results showed that the main formed crystalline phases were magnetite, hematite, Fe2.95Si0.05O4, and CaAl2Fe4O10. The activation energies obtained by the Kissinger method were between 348 and 423 kJ.mol-1, whereas the Avrami parameter was obtained between 0.76 and 1.1 indicating surface crystallization.


2004 ◽  
Vol 108 (34) ◽  
pp. 12698-12706 ◽  
Author(s):  
Bradley L. Kirsch ◽  
Erik K. Richman ◽  
Andrew E. Riley ◽  
Sarah H. Tolbert

1984 ◽  
Vol 29 (3) ◽  
pp. 837-843
Author(s):  
P. K. Chidambareswaran ◽  
N. B. Patil ◽  
A. D. Pawar ◽  
S. R. Shukla ◽  
H. T. Lokhande

2008 ◽  
Vol 40 (3) ◽  
pp. 333-338 ◽  
Author(s):  
S. Grujic ◽  
N. Blagojevic ◽  
M. Tosic ◽  
V. Zivanovic ◽  
J. Nikolic

Crystallization kinetics of K2O?TiO2?3GeO2 glass was investigated by differential thermal analysis (DTA). Experiments were performed on powder samples with a particle size < 0.037 mm. The glass samples were heated at different rates in the temperature range 20-750?C. The kinetic parameters, activation energy for the crystallization process, Ec and Avrami exponent, n were calculated. Powder X-ray diffraction analysis (XRD) of crystallized glass reveals the presence of crystalline K2O?TiO2?3GeO2 indicating polymorphic crystallization with interface controlled crystal growth.


CrystEngComm ◽  
2011 ◽  
Vol 13 (10) ◽  
pp. 3592 ◽  
Author(s):  
Laura Bayés-García ◽  
Teresa Calvet ◽  
Miquel Àngel Cuevas-Diarte ◽  
Satoru Ueno ◽  
Kiyotaka Sato

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