Extended stochastic description of the new phase formation kinetics

1995 ◽  
Vol 102 (7) ◽  
pp. 2928-2933 ◽  
Author(s):  
A. V. Manankova
Keyword(s):  
Phase Formation ◽  
Stochastic Description ◽  
Formation Kinetics ◽  
New Phase

Understanding the phase formation kinetics of nano-crystalline kesterite deposited on mesoscopic scaffolds via in situ multi-wavelength Raman-monitored annealing

2016 ◽  
Vol 18 (42) ◽  
pp. 29435-29446 ◽  
Author(s):  
Zhuoran Wang ◽  
Samir Elouatik ◽  
George P. Demopoulos
Keyword(s):  
Real Time ◽  
Phase Formation ◽  
Formation Kinetics ◽  
Nano Crystalline ◽  
Multi Wavelength ◽  
Real Time Information ◽  
Kinetics Of ◽  
Time Information ◽  
Annealing Method

The in situ Raman monitored annealing method is developed in this work to provide real-time information on phase formation and crystallinity evolution of kesterite deposited on a TiO2 mesoscopic scaffold.

Investigation of phase-formation kinetics and magnetic clustering in Nd0.7Sr0.3MnO3

2003 ◽  
Vol 327 (2-4) ◽  
pp. 244-246 ◽  
Author(s):  
L.H. Son ◽  
N.X. Phuc ◽  
N.V. Khiem ◽  
L.V. Bau ◽  
L.V. Hong ◽  
...  
Keyword(s):  
Phase Formation ◽  
Formation Kinetics

New phase formation of Gd[sub 2]O[sub 3] films on GaAs(100)

2001 ◽  
Vol 19 (4) ◽  
pp. 1434 ◽  
Author(s):  
A. R. Kortan ◽  
M. Hong ◽  
J. Kwo ◽  
J. P. Mannaerts ◽  
J. J. Krajewski ◽  
...  
Keyword(s):  
Phase Formation ◽  
New Phase

Phase Formation Kinetics in Sol-Gel Derived Strontium Bismith Tantalate

2001 ◽  
Vol 666 ◽  
Author(s):  
Yun-Mo Sung ◽  
Woo-Chul Kwack
Keyword(s):  
Activation Energy ◽  
Thermal Analysis ◽  
Phase Formation ◽  
Sol Gel ◽  
Avrami Exponent ◽  
Fluorite Phase ◽  
X Ray Diffraction ◽  
Aurivillius Phases ◽  
Formation Kinetics ◽  
Isothermal Kinetic

ABSTRACTPhase formation characteristics of Sr0.7Bi2.4Ta2O9 (SBT) powder, synthesized via sol-gel and pyrolysis process, was investigated by using thermal analysis. Each of the two exotherms, appearing in differential thermal analysis (DTA) scan curves, was identified as crystallization of fluorite phase and transformation of fluorite to aurivillius phase, respectively by using x-ray diffraction (XRD). By applying non-isothermal kinetic analyses to the DTA results, activation energy values for the formation of fluorite and aurivillius phases were determined as 192 and 375 kJ/mol, respectively and Avrami exponent values for each reaction were determined as 0.91 and 0.96, respectively. These activation energy and Avrami exponent values were discussed in detail to understand phase formation mechanism in SBT system.

Phase Segregation, Transition, or New Phase Formation of Plutonium Dioxide: The Roles of Transition Metals

2019 ◽  
Vol 58 (7) ◽  
pp. 4350-4364 ◽  
Author(s):  
Bingyun Ao ◽  
Jun Tang ◽  
Xiaoqiu Ye ◽  
Ran Tao ◽  
Ruizhi Qiu
Keyword(s):  
Transition Metals ◽  
Phase Formation ◽  
Phase Segregation ◽  
Plutonium Dioxide ◽  
New Phase

scholarly journals Stabilization/Solidification of Strontium Using Magnesium Silicate Hydrate Cement

Processes ◽  
2020 ◽  
Vol 8 (2) ◽  
pp. 163
Author(s):  
Tingting Zhang ◽  
Jing Zou ◽  
Yimiao Li ◽  
Yuan Jia ◽  
Christopher R. Cheeseman
Keyword(s):  
Magnesium Oxide ◽  
Silica Fume ◽  
Phase Formation ◽  
Magnesium Silicate ◽  
National Standard ◽  
Leaching Rate ◽  
Hydration Products ◽  
Hydrate Cement ◽  
Leaching Fraction ◽  
New Phase

Magnesium silicate hydrate (M–S–H) cement, formed by reacting MgO, SiO2, and H2O, was used to encapsulate strontium (Sr) radionuclide. Samples were prepared using light-burned magnesium oxide and silica fume, with sodium hexametaphosphate added to the mix water as a dispersant. The performance of the materials formed was evaluated by leach testing and the microstructure of the samples was also characterized. The stabilizing/solidifying effect on Sr radionuclide in the MgO–SiO2–H2O system with low alkalinity is demonstrated in the study. The leaching rate in a standard 42-day test was 2.53 × 10−4 cm/d, and the cumulative 42-day leaching fraction was 0.06 cm. This meets the relevant national standard performance for leaching requirements. Sr2+ was effectively incorporated into the M–S–H hydration products and new phase formation resulted in low Sr leaching being observed.

Evidence of a new phase formation (BaTi4O9) by barium implantation into TiO2

1994 ◽  
Vol 143 (3-4) ◽  
pp. 227-231 ◽  
Author(s):  
S.M.M. Ramos ◽  
N. Bonardi ◽  
R. Brenier ◽  
B. Canut ◽  
P. Thévénard ◽  
...  
Keyword(s):  
Phase Formation ◽  
New Phase

Study of Pbtio2 Formation Kinetics by an In-Situ Stress Measurement Technique

1993 ◽  
Vol 310 ◽  
Author(s):  
Chen C. Li ◽  
Seshu B. Desu
Keyword(s):  
Phase Formation ◽  
Measurement Technique ◽  
Stress Measurement ◽  
In Situ Stress ◽  
Primary Objective ◽  
Film Stress ◽  
Double Layers ◽  
Formation Kinetics ◽  
In Situ Stress Measurement

AbstractThe primary objective of this study is to demonstrate an in–situ stress measurement technique for the study of formation kinetics of multicomponent thin films such as PbTiO3. Film stress–temperature and film stress–time plots have been successfully used to monitor the phase formation of PbTiO3 films in a in–situ way. It is believed that the mechanism of this reaction was dominated by grain boundary diffusion of the participating cations. The activation energy of the PbTiO3 phase formation from PbO/TiO2 double layers was estimated to be 108 kcal/mole.

scholarly journals An infrared imaging method for high-throughput combinatorial investigation of hydrogenation-dehydrogenation and new phase formation of thin films

2009 ◽  
Vol 80 (7) ◽  
pp. 073707 ◽  
Author(s):  
H. Oguchi ◽  
J. Hattrick-Simpers ◽  
I. Takeuchi ◽  
E. J. Heilweil ◽  
L. A. Bendersky
Keyword(s):  
Thin Films ◽  
Phase Formation ◽  
High Throughput ◽  
Infrared Imaging ◽  
Imaging Method ◽  
New Phase
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