Grain growth in Nio–MgO and its dependence on faceting and the equilibrium crystal shape

2020 ◽  
Vol 178 ◽  
pp. 236-239 ◽  
Author(s):  
Wolfgang Rheinheimer ◽  
David Lowing ◽  
John E. Blendell
Keyword(s):  
Grain Growth ◽  
Crystal Shape ◽  
Equilibrium Crystal Shape

Thermodynamics of real mineral crystals: Equilibrium crystal shape and phase size effect

1993 ◽  
Vol 57 (4) ◽  
pp. 815-821 ◽  
Author(s):  
Vladimir L. Tauson ◽  
Michael G. Abramovich ◽  
Vladlen V. Akimov ◽  
Vladimir A. Scherbakov
Keyword(s):  
Size Effect ◽  
Crystal Shape ◽  
Equilibrium Crystal Shape ◽  
Phase Size

scholarly journals Fractal structure of the equilibrium crystal shape

1985 ◽  
Vol 46 (3) ◽  
pp. 317-327 ◽  
Author(s):  
S.E. Burkov
Keyword(s):  
Fractal Structure ◽  
Crystal Shape ◽  
Equilibrium Crystal Shape

scholarly journals Ice-wedge Ice, Mackenzie Delta-Tuktoyaktuk Peninsula Area, N.W.T., Canada

1978 ◽  
Vol 20 (84) ◽  
pp. 555-562 ◽  
Author(s):  
W. Alan Gell
Keyword(s):  
Stress Field ◽  
Grain Growth ◽  
Growth Mechanism ◽  
Crystal Size ◽  
Horizontal Stress ◽  
Crystal Shape ◽  
Mackenzie Delta ◽  
Ice Wedge

Abstract Petrologic analysis was performed on ice-wedge ice in order to investigate changes in fabric across wedges in relation to the growth mechanism. Crystal size increased from the centre outward and strongly preferred dimensional orientations developed parallel to the sides of wedges. c-axis orientations changed from a horizontal girdle at the wedge centre to a point maximum normal to the foliation at the boundary. These changes are related to recrystallization and grain growth associated with the horizontal stress field. In massive ice penetrated by an ice wedge, crystal size and complexity of crystal shape decreased toward the wedge, dimensional orientations tended to become parallel to the wedge, and c-axes formed a point maximum normal to the wedge boundary.

Novel Molten Salt Assisted Autocombustion Method for the Synthesis of Aluminum-Doped SrFe12−xAlxO19 Hexaferrite Nanoparticles

2020 ◽  
Vol 20 (12) ◽  
pp. 7735-7742
Author(s):  
T. P. Poudel ◽  
D. Guragain ◽  
J. Mohapatra ◽  
J. P. Liu ◽  
S. R. Mishra
Keyword(s):  
Magnetic Properties ◽  
Molten Salt ◽  
Grain Growth ◽  
Growth Process ◽  
High Coercivity ◽  
Crystal Shape ◽  
Squareness Ratio ◽  
Highly Dispersed ◽  
Novel Method ◽  
Shape And Size

The study presents a novel molten salt assisted autocombustion synthesis of SrFe12−xAlxO19 particles. The extrinsic magnetic properties such as coercivity and the remanence of sintered M-type ferrites are highly dependent on the microstructure viz. morphology and size, of the ferrite particles. The control of the microstructures of ferrite particles is usually achieved via control nucleation and grain growth process. In this study, NaCl salt was used to control the crystal shape and size of Al3+ doped SrFe12−xAlxO19 particles. The presented novel method couples advantage of deriving homogenized particles via auctocombustion first and later sintering in the presence of NaCl salt. Highly dispersed, homogeneous, and hexagonal shaped SrFe12−xAlxO19 ferrite particles were achieved with this method. The particles derived via the molten salt assisted method presented a high coercivity and squareness ratio (>0.5) as compared to that obtained via autocombustion method only.

Calculation of temperature effects on the equilibrium crystal shape of Si near (100)

1994 ◽  
Vol 49 (3) ◽  
pp. 1919-1927 ◽  
Author(s):  
S. Mukherjee ◽  
E. Pehlke ◽  
J. Tersoff
Keyword(s):  
Temperature Effects ◽  
Crystal Shape ◽  
Equilibrium Crystal Shape

Universal Behavior of the Equilibrium Crystal Shape near the Facet Edge. I. A Generalized Terrace-Step-Kink Model

1988 ◽  
Vol 57 (2) ◽  
pp. 453-460 ◽  
Author(s):  
Takao Yamamoto ◽  
Yasuhiro Akutsu ◽  
Noriko Akutsu
Keyword(s):  
Crystal Shape ◽  
Universal Behavior ◽  
Equilibrium Crystal Shape ◽  
Kink Model

scholarly journals GaAs equilibrium crystal shape from first principles

1996 ◽  
Vol 54 (12) ◽  
pp. 8844-8855 ◽  
Author(s):  
N. Moll ◽  
A. Kley ◽  
E. Pehlke ◽  
M. Scheffler
Keyword(s):  
First Principles ◽  
Crystal Shape ◽  
Equilibrium Crystal Shape
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