scholarly journals Interlayer growth kinetics of a binary solid-solution based on the thermodynamic extremal principle: Application to the formation of spinel at periclase-corundum contacts

2016 ◽  
Vol 316 (4) ◽  
pp. 309-328 ◽  
Author(s):  
R. Abart ◽  
J. Svoboda ◽  
P. Je abek ◽  
E. Povoden-Karadeniz ◽  
G. Habler
Keyword(s):  
Solid Solution ◽  
Growth Kinetics ◽  
Extremal Principle ◽  
Binary Solid Solution ◽  
Kinetics Of

Spinodal Decomposition in Fe-Cr Alloys

2011 ◽  
Vol 172-174 ◽  
pp. 443-448
Author(s):  
Orlando Soriano Vargas ◽  
Erika O. Avila Davila ◽  
Victor M. Lopez-Hirata ◽  
Maribel L. Saucedo-Muñoz
Keyword(s):  
Solid Solution ◽  
Mechanical Behavior ◽  
Spinodal Decomposition ◽  
Growth Kinetics ◽  
Supersaturated Solid Solution ◽  
Rich Phase ◽  
Hardening Behavior ◽  
Plate Shape ◽  
Kinetics Of ◽  
Preferential Alignment

The hardening behavior of precipitation was studied during aging of Fe-Cr alloys. This mechanical behavior is associated with the nanometric modulation structure of the coherent decomposed Fe-rich and Cr-rich phases formed by the spinodal decomposition of the supersaturated solid solution. The growth kinetics of spinodal decomposition was very slow and it increased during coarsening stage. The morphology of decomposed phases consisted of an interconnected irregular shape with no preferential alignment for short aging times and a further aging caused the change to a plate shape of the decomposed Cr-rich phase aligned in the <110> directions of the Fe-rich matrix. The rapid increase in hardness and embrittlement seem to be associated with the coherency and nanometer size of the spinodally-decomposed phases in the aged alloys.

GROWTH KINETICS OF Cu(Al) SOLID SOLUTION IN Al/Cu DIFFUSION COUPLES

2004 ◽  
Vol 11 (03) ◽  
pp. 337-340 ◽  
Author(s):  
E. B. HANNECH ◽  
N. LAMOUDI ◽  
A. GASMI
Keyword(s):  
Solid Solution ◽  
Growth Kinetics ◽  
Early Stage ◽  
Pure Aluminum ◽  
Layer Growth ◽  
Solid Solution Phase ◽  
Diffusion Couples ◽  
Phase Layer ◽  
Initial Stage ◽  
Kinetics Of

The growth kinetics of the solid solution phase of aluminum in copper in diffusion couples of pure aluminum and copper has been investigated at 425°C using a scanning electron microscope. In the initial stage, the phase layer growth was found to obey the parabolic law, indicating that the rate-controlling process is diffusion. At longer times, the growth rate deviates from the kt-1/2 behavior of the early stage.

scholarly journals Nucleation and growth kinetics of RaxBa1−xSO4 solid solution in NaCl aqueous solutions

2014 ◽  
Vol 125 ◽  
pp. 290-307 ◽  
Author(s):  
Yoav O. Rosenberg ◽  
Yonatan Sadeh ◽  
Volker Metz ◽  
Carlos M. Pina ◽  
Jiwchar Ganor
Keyword(s):  
Solid Solution ◽  
Aqueous Solutions ◽  
Growth Kinetics ◽  
Nucleation And Growth ◽  
Kinetics Of

scholarly journals Growth Kinetics of β-Ti Solid Solution in Reaction Diffusion

2003 ◽  
Vol 44 (1) ◽  
pp. 83-88 ◽  
Author(s):  
Osamu Taguchi ◽  
Gyanendra Prasad Tiwari ◽  
Yoshiaki Iijima
Keyword(s):  
Solid Solution ◽  
Growth Kinetics ◽  
Reaction Diffusion ◽  
Kinetics Of

The Ordered Phase Formation in Ti-Al-Ga Alloys

1970 ◽  
Vol 28 ◽  
pp. 440-441
Author(s):  
Shiro Fujishiro ◽  
Harold L. Gegel
Keyword(s):  
Thermal Stability ◽  
High Temperature ◽  
Titanium Alloys ◽  
Growth Kinetics ◽  
Stoichiometric Composition ◽  
Good Potential ◽  
Alpha Titanium ◽  
Cold Rolled ◽  
Kinetics Of ◽  
Thermal Stability Of

Ordered-alpha titanium alloys having a DO19 type structure have good potential for high temperature (600°C) applications, due to the thermal stability of the ordered phase and the inherent resistance to recrystallization of these alloys. Five different Ti-Al-Ga alloys consisting of equal atomic percents of aluminum and gallium solute additions up to the stoichiometric composition, Ti3(Al, Ga), were used to study the growth kinetics of the ordered phase and the nature of its interface.The alloys were homogenized in the beta region in a vacuum of about 5×10-7 torr, furnace cooled; reheated in air to 50°C below the alpha transus for hot working. The alloys were subsequently acid cleaned, annealed in vacuo, and cold rolled to about. 050 inch prior to additional homogenization

Growth Kinetics of Quantum Size ZnO Particles

1998 ◽  
Vol 536 ◽  
Author(s):  
E. M. Wong ◽  
J. E. Bonevich ◽  
P. C. Searson
Keyword(s):  
Growth Kinetics ◽  
Ostwald Ripening ◽  
Chemical Potential ◽  
Colloidal Suspensions ◽  
Green Emission ◽  
Blue Shift ◽  
Constant Current ◽  
Mass Model ◽  
Zno Particles ◽  
Kinetics Of

AbstractColloidal chemistry techniques were used to synthesize ZnO particles in the nanometer size regime. The particle aging kinetics were determined by monitoring the optical band edge absorption and using the effective mass model to approximate the particle size as a function of time. We show that the growth kinetics of the ZnO particles follow the Lifshitz, Slyozov, Wagner theory for Ostwald ripening. In this model, the higher curvature and hence chemical potential of smaller particles provides a driving force for dissolution. The larger particles continue to grow by diffusion limited transport of species dissolved in solution. Thin films were fabricated by constant current electrophoretic deposition (EPD) of the ZnO quantum particles from these colloidal suspensions. All the films exhibited a blue shift relative to the characteristic green emission associated with bulk ZnO. The optical characteristics of the particles in the colloidal suspensions were found to translate to the films.

Growth kinetics of boride layers formed on GGG 40.3 ductile iron

2016 ◽  
Vol 58 (5) ◽  
pp. 418-421
Author(s):  
Fatma Ünal ◽  
Ahmet Topuz
Keyword(s):  
Growth Kinetics ◽  
Ductile Iron ◽  
Kinetics Of
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