Towards the Thermodynamic Modeling of Nucleation and Growth of Liquid Droplets in Single Crystals

2003 ◽  
pp. 113-130
Author(s):  
Wolfgang Dreyer ◽  
Frank Duderstadt
Keyword(s):  
Single Crystals ◽  
Thermodynamic Modeling ◽  
Nucleation And Growth ◽  
Liquid Droplets

scholarly journals Influence of the ultra-slow nucleation and growth dynamics on the room-temperature hysteresis of spin-crossover single crystals

2021 ◽  
pp. 138442
Author(s):  
Volodymyr M. Hiiuk ◽  
Karl Ridier ◽  
Il'ya A. Gural'skiy ◽  
Alexander A. Golub ◽  
Igor O. Fritsky ◽  
...  
Keyword(s):  
Single Crystals ◽  
Room Temperature ◽  
Spin Crossover ◽  
Growth Dynamics ◽  
Nucleation And Growth ◽  
Temperature Hysteresis

scholarly journals Nucleation and growth of CdC2O4·3H2O single crystals in silica gels

1993 ◽  
Vol 16 (4) ◽  
pp. 309-315 ◽  
Author(s):  
M R Shedam ◽  
A Venkateswara Rao
Keyword(s):  
Single Crystals ◽  
Nucleation And Growth ◽  
Silica Gels

Recrystallization of AA1050 Studied by 3DXRD

2006 ◽  
Vol 519-521 ◽  
pp. 1569-1578
Author(s):  
Dorte Juul Jensen
Keyword(s):  
Single Crystals ◽  
High Energy ◽  
Nucleation And Growth ◽  
X Rays ◽  
X Ray Diffraction ◽  
Orientation Relationships ◽  
X Ray ◽  
3 Dimensional ◽  
Kinetics Of

By 3 dimensional X-ray diffraction (3DXRD) using high energy X-rays from synchrotron sources it is possible to study in-situ the nucleation and growth during recrystallization. In this paper it is described and discussed how 3DXRD can supplement EBSP measurements of nucleation and growth. Three types of studies are considered: i) orientation relationships between nuclei and parent deformed matrix, ii) recrystallization kinetics of individual bulk grains and iii) filming of growing grains in deformed single crystals.

HREM observation of stacking faults in Guinier-Preston zones for Al-Ag alloys

1990 ◽  
Vol 48 (4) ◽  
pp. 182-183
Author(s):  
P. Schwander ◽  
Ph.A. Dubey ◽  
G. Kostorz
Keyword(s):  
Solid Solution ◽  
Electron Beam ◽  
Single Crystals ◽  
Incubation Time ◽  
Homogeneous Nucleation ◽  
Optical Axis ◽  
Stacking Faults ◽  
Nucleation And Growth ◽  
Miscibility Gap ◽  
Spark Erosion

The decomposition of Al-rich Al-Ag-alloys quenched from the solid solution (α) and aged within the metastable miscibility gap, follows the sequence GP zones → γ' → γ (Ag2Al). Nearly spherical GP zones (Guinier-Preston zones) coherent with the fee matrix are formed by homogeneous nucleation and growth, whereas γ' plate-like precipitates with an hdp structure — lying on {111}-planes of the fee matrix — nucleate heterogeneously at dislocations after a certain incubation time. In the present work HREM was used to investigate the internal structure of the GP zones.Single crystals of Al-3 at.% Ag grown by strain-annealing were cut along (110) by spark erosion. The samples were homogenized for 2 h at 580°C prior to ageing for 43 h at 160°C. They were electrolytically thinned at −30°C in a methanol-HNO3 (2:1) solution. The TEM work was performed on a Philips CM 30 fitted with a Super Twin Lens and a double tilt holder. To bring the electron beam parallel to the optical axis the coma-free alignment was used. At 300 kV the instrumental point resolution was determined to be 1.9 Å using the Young’s fringes method.

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