Are Nucleation Kinetics of Protein Crystals Similar to Those of Liquid Droplets?

2000 ◽  
Vol 122 (1) ◽  
pp. 156-163 ◽  
Author(s):  
Oleg Galkin ◽  
Peter G. Vekilov
Keyword(s):  
Protein Crystals ◽  
Liquid Droplets ◽  
Nucleation Kinetics ◽  
Kinetics Of

AEM analysis of solidification catalysts in atomized Fe-Ni

1986 ◽  
Vol 44 ◽  
pp. 584-585
Author(s):  
Matthew R. Libera
Keyword(s):  
Powder Particle ◽  
Alloy Composition ◽  
Particle Diameter ◽  
Metastable Phases ◽  
Liquid Droplets ◽  
Nucleation Kinetics ◽  
Ni Alloys ◽  
Nonequilibrium Solidification

The liquid droplets produced by atomization processes are believed to undergo substantial supercooling during solidification, because the catalytic heterogeneities, for statistical reasons, tend to be isolated in the larger droplets. This supercooling can lead to the nucleation of metastable phases. As part of a study on the effect of liquid supercooling on nonequilibrium solidification, three binary Fe-Ni alloys have been produced by conventional argon atomization (Fe-20Ni, Fe-30Ni, and Fe-40Ni). The primary variables in these experiments are: i) the alloy composition; and ii) the powder particle diameter (inversely proportional to supercooling). Of particular interest in this system is the competitive nucleation kinetics between the stable fee and metastable bec phases. Bcc is expected to nucleate preferentially with decreasing %Ni and decreasing particle diameter.

scholarly journals Experimental Evidence that Halogen Bonding Catalyzes the Heterogeneous Chlorination of Alkenes in Submicron Liquid Droplets

2021 ◽  
Author(s):  
Meirong Zeng ◽  
Kevin Roger Wilson
Keyword(s):  
Experimental Evidence ◽  
Halogen Bonding ◽  
Liquid Droplets ◽  
Elementary Steps ◽  
Kinetics Of

A key challenge in predicting the multiphase chemistry of aerosols and droplets is connecting reaction probabilities, observed in an experiment, with the kinetics of individual elementary steps that control the...

Observation of the nucleation kinetics of Si quantum dots on SiO2 by EFTEM

2018 ◽  
pp. 119-122
Author(s):  
G Nicotra ◽  
S Lombardo ◽  
R Puglisi ◽  
C Spinella ◽  
G Ammendola ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Nucleation Kinetics ◽  
Kinetics Of ◽  
Si Quantum Dots

The nucleation kinetics of ammonium metavanadate precipitated by ammonium chloride

2016 ◽  
Vol 441 ◽  
pp. 117-123 ◽  
Author(s):  
Guangchao Du ◽  
Zhaohui Sun ◽  
Yong Xian ◽  
Han Jing ◽  
Haijun Chen ◽  
...  
Keyword(s):  
Ammonium Chloride ◽  
Ammonium Metavanadate ◽  
Nucleation Kinetics ◽  
Kinetics Of

Nucleation rates and the kinetics of particle growth II. The birth and death process

1964 ◽  
Vol 277 (1369) ◽  
pp. 167-182 ◽  
Keyword(s):  
Steady State ◽  
Homogeneous Nucleation ◽  
Time Lag ◽  
Particle Growth ◽  
Statistical Problem ◽  
Death Process ◽  
Birth And Death Process ◽  
Growth Mechanisms ◽  
Nucleation Kinetics ◽  
Kinetics Of

The model considered in part I is generalized to include growth mechanisms in which the chemical reaction which proceeds at the particle-atm osphere interface is reversible, so that molecules may evaporate from a particle as well as condense upon it. The Becker-Döring-Zeldovich-Frenkel theory of homogeneous nucleation kinetics is then reviewed in the light of the known statistical problem of the birth -and -death process, and an improved approximation is introduced which significantly alters the calculated results. Both steady-state nucleation kinetics and the time lag problem are discussed.

Sign in / Sign up

Export Citation Format

Share Document