On the Theory of the Nonstationary Spherical Crystal Growth in Supercooled Melts and Supersaturated Solutions

2019 ◽  
Vol 2019 (8) ◽  
pp. 787-794 ◽  
Author(s):  
D. V. Alexandrov ◽  
I. V. Alexandrova ◽  
A. A. Ivanov ◽  
A. P. Malygin ◽  
I. O. Starodumov ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Spherical Crystal ◽  
Supersaturated Solutions

The effect of far field flow on a spherical crystal growth in the undercooled melt

2008 ◽  
Vol 24 (6) ◽  
pp. 681-689 ◽  
Author(s):  
Mingwen Chen ◽  
Zidong Wang ◽  
Jianxin Xie ◽  
Jian-Jun Xu
Keyword(s):  
Crystal Growth ◽  
Far Field ◽  
Undercooled Melt ◽  
Spherical Crystal

Growth of lithium borate crystals from the vitreous state

1994 ◽  
Vol 9 (8) ◽  
pp. 2051-2056 ◽  
Author(s):  
T. Katsumata ◽  
T. Yoshimura ◽  
K. Kanazawa ◽  
H. Aizawa
Keyword(s):  
Crystal Growth ◽  
Growth Mechanism ◽  
Compositional Variation ◽  
Lithium Borate ◽  
Morphological Instability ◽  
Vitreous State ◽  
Growth Interface ◽  
Crystalline Phases ◽  
The Core ◽  
Spherical Crystal

The morphology and the growth mechanism of lithium borate crystals from the vitreous state have been studied for various compositions, X = B/(Li + B), from 0.62 to 0.75. Crystalline phases and morphology of grown crystals varied with the composition. Octahedral and/or spherical Li2B4O7 crystals are seen in the specimen with X = 0.62, 0.64, 0.67, and 0.68. The spherical crystal is composed of an octahedral core and fibrous crystals. The size of the core varied with the composition of the starting glass, X. The fibrous crystal growth is supposed to arise from the morphological instability due to the compositional variation caused by the solute pileup at the growth interface.

The Inhibition of Calcium Carbonate Formation in Aqueous Supersaturated Solutions, Spontaneous Precipitation and Seeded Crystal Growth

2005 ◽  
pp. 123-137 ◽  
Author(s):  
Pavlos G. Klepetsanis ◽  
Angeliki Kladi ◽  
Terje Ostvold ◽  
Christos G. Kontoyiannis ◽  
Petros G. Koutsoukos ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Calcium Carbonate ◽  
Carbonate Formation ◽  
Supersaturated Solutions

scholarly journals An automatic system for crystal growth studies at constant supersaturation

1992 ◽  
Vol 14 (5) ◽  
pp. 177-180
Author(s):  
J. G. March ◽  
A. Costa-Bauzá ◽  
F. Grases ◽  
O. Söhnel
Keyword(s):  
Crystal Growth ◽  
Calcium Oxalate ◽  
Data Acquisition ◽  
Automatic System ◽  
Growth Studies ◽  
Kinetics Of ◽  
Supersaturated Solutions ◽  
Kinetics Of Crystal Growth

An automatic system for growing crystals from seeded supersaturated solutions at constant supersaturation is described. Control of burettes and data acquisition are controlled by computer. The system was tested with a study of the calcium oxalate kinetics of crystal growth.

Experimental constraints on illite crystal morphology

Clay Minerals ◽  
2000 ◽  
Vol 35 (3) ◽  
pp. 587-597 ◽  
Author(s):  
A. Bauer ◽  
B. Velde ◽  
R. Gaupp
Keyword(s):  
Growth Rate ◽  
Crystal Growth ◽  
Crystal Morphology ◽  
Slow Growth ◽  
Crystal Form ◽  
Slow Growth Rate ◽  
Natural Minerals ◽  
Hexagonal Form ◽  
Supersaturated Solutions ◽  
Stable Shape

AbstractObservations of natural minerals and experimental run products show that I-S (illitesmectite mixed-layer minerals) with a high illite content as well as pure mica-illite crystallites can have a lath shape (aspect ratio >3). This shape is common to the I-S minerals under a variety of conditions of formation. The experiments presented indicate that the occurrence of lath-shaped micaillite is due to a slow growth rate from supersaturated solutions. This lath-shaped crystallite is metastable as the ultimate stable shape is hexagonal. A longer period of crystal growth will replace the mica-illite laths with crystallites of a hexagonal form. Thus the presence of lath-shaped micaillite indicates the existence of a metastable crystal form for this mineral.

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