Evaluation of Growth Front Velocity in Ultrastable Glasses of Indomethacin over a Wide Temperature Interval

2014 ◽  
Vol 118 (36) ◽  
pp. 10795-10801 ◽  
Author(s):  
Cristian Rodríguez-Tinoco ◽  
Marta Gonzalez-Silveira ◽  
Joan Ràfols-Ribé ◽  
Aitor F. Lopeandía ◽  
Maria Teresa Clavaguera-Mora ◽  
...  
Keyword(s):  
Temperature Interval ◽  
Growth Front ◽  
Front Velocity ◽  
Wide Temperature Interval

Production, Properties and Application of Ultrafine-Grained Titanium Alloys

2016 ◽  
Vol 838-839 ◽  
pp. 294-301 ◽  
Author(s):  
Sergey Zherebtsov ◽  
Gennady Salishchev
Keyword(s):  
Mechanical Properties ◽  
Grain Size ◽  
Titanium Alloys ◽  
Structure Formation ◽  
Temperature Interval ◽  
Two Phase ◽  
Homogeneous Microstructure ◽  
Wide Temperature Interval ◽  
Ultrafine Grained ◽  
Kinetics Of

Some features ofstructure, way of production and mechanical properties of titanium andtwo-phase titanium alloys with ultrafine-grained (UFG) microstructure werediscussed. Various methods of UFG structure formation was considered andoptimal conditions for attaining of a homogeneous microstructure with thesmallest grain size were determined. The kinetics of microstructure evolutionin titanium and two-phase titanium alloys during large (severe) plasticdeformation in a wide temperature interval and the mechanisms of ultrafinegrain formation were analyzed. The influence of grain size on static mechanicalproperties was determined. Significantly reduced temperatures of superplasticforming of the UFG conditions were shown. Some examples of practical applicationsof the UFG two-phase titanium alloys were discussed.

scholarly journals Connection of thermopower, magnetothermopower with resistivity and magnetoresistance in manganites with Nd and Sm

2018 ◽  
Vol 185 ◽  
pp. 06014 ◽  
Author(s):  
Luidmila Koroleva ◽  
Ivan Batashev ◽  
Artem Morozov ◽  
Anatolii Balbashov ◽  
Henryk Szymczak ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Curie Temperature ◽  
Single Crystal ◽  
Temperature Interval ◽  
Impurity States ◽  
Wide Temperature Interval ◽  
Concentration Of Impurities

Thermopower, magnetothermopower resistivity and magnetoresistance of single crystal samples Re(1-x)SrxMnO3 (0 ≤ x ≤ 0.3, Re = Nd, Sm) were studied in wide temperature interval, included the Curie temperature TC. Giant maxima of resistivity and thermopower, very big negative magnetothermopower and magnetoresistance were found in TC region. So, a giant maximum of thermopower in TC was found, which suppressed by magnetic field. Simultaneous magnetic field destroys magneto-impurity states – ferrons as evidenced the maxima resistivity and magnetoresistance in TC Hence it follows that giant thermopower in manganites are produced by ferrons and its value is set by the quantity of impurities, that is the concentration of impurities and the volume of sample.

scholarly journals Transformation kinetics of vapor-deposited thin film organic glasses: the role of stability and molecular packing anisotropy

2015 ◽  
Vol 17 (46) ◽  
pp. 31195-31201 ◽  
Author(s):  
Cristian Rodríguez-Tinoco ◽  
Marta Gonzalez-Silveira ◽  
Joan Ràfols-Ribé ◽  
Aitor F. Lopeandía ◽  
Javier Rodríguez-Viejo
Keyword(s):  
Thin Film ◽  
Thermodynamic Stability ◽  
Growth Front ◽  
Molecular Packing ◽  
Front Velocity ◽  
Transformation Kinetics ◽  
Organic Glasses ◽  
Kinetics Of ◽  
Deposition Conditions

The growth front velocity of indomethacin glasses depends on deposition conditions but is not unambigously determined by its thermodynamic stability when the structure is not completely isotropic.

Thermo-emf of Ni-8 at. % Mo alloy in a wide temperature interval

1974 ◽  
Vol 17 (11) ◽  
pp. 1614-1616 ◽  
Author(s):  
D. F. Kalinovich ◽  
I. I. Kovenskii ◽  
M. D. Smolin ◽  
V. M. Statsenko
Keyword(s):  
Temperature Interval ◽  
Wide Temperature Interval

scholarly journals Experimental study of boron nitride in a wide temperature interval

2019 ◽  
Vol 1382 ◽  
pp. 012176
Author(s):  
A Sh Agazhanov ◽  
D A Samoshkin ◽  
Yu M Kozlovskii ◽  
S V Stankus
Keyword(s):  
Experimental Study ◽  
Boron Nitride ◽  
Temperature Interval ◽  
Wide Temperature Interval

Polytype Stability and Defect Reduction in 4H-SiC Crystals Grown via Sublimation Technique

1999 ◽  
Vol 572 ◽  
Author(s):  
R. Yakimova ◽  
T. Iakimov ◽  
M. Syvdijarvi ◽  
H. Jacobsson ◽  
P. Råback ◽  
...  
Keyword(s):  
Growth Rate ◽  
Experimental Evidence ◽  
Temperature Interval ◽  
Growth Front ◽  
Morphological Instability ◽  
Surface Kinetics ◽  
Defect Reduction ◽  
Initial Stage ◽  
Good Crystalline Quality ◽  
Sublimation Technique

ABSTRACTReproducible growth of 4H-SiC with good crystalline quality has been obtained in a temperature interval around 2350°C and on 4H-SiC C-face seeds. It has been observed that morphological instability may appear at the initial stage of growth, causing formation of defects. Experimental evidence has been found that supersaturation and surface kinetics are responsible for the polytype stability, while growth front and growth mode address defect reduction. An explanation of the findings has been suggested. It has been shown that starting the growth with a relatively low growth rate ( ≈ 100 μm/h ) can be beneficial for the crystal quality.

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