scholarly journals Эффективные кристаллы Bi-Sb для термоэлектрического охлаждения при температурах T≲180 K

2019 ◽  
Vol 53 (5) ◽  
pp. 693
Author(s):  
Н.А. Сидоренко ◽  
З.М. Дашевский
Keyword(s):  
Hydrostatic Pressure ◽  
Single Crystals ◽  
High Hydrostatic Pressure ◽  
Polycrystalline Material ◽  
High Strength ◽  
Strength Properties ◽  
Experimental Equipment ◽  
Liquid Environment

Methods of extrusion are widely used in technology of thermoelectric (TE) materials manufacturing with high strength and good TE properties at temperatures above 200 K. The method of extrusion of Bi - Sb single crystals in the liquid environment under high hydrostatic pressure is considered. The construction of experimental equipment is presented. It was shown that presented method of extrusion allows preparing of polycrystalline material with high TE and improved strength properties at temperatures below 180 K.

Effect of high hydrostatic pressure on the phonon modes of Tb3Al5O12 and Dy3Al5O12 single crystals

1999 ◽  
Vol 265 (1-4) ◽  
pp. 277-281 ◽  
Author(s):  
K. Papagelis ◽  
J. Arvanitidis ◽  
G. Kanellis ◽  
S. Ves ◽  
G.A. Kourouklis
Keyword(s):  
Hydrostatic Pressure ◽  
Single Crystals ◽  
High Hydrostatic Pressure ◽  
Phonon Modes

Effect of high pressure on various diffusion mechanisms in oxygen-deficient ReBa2Cu3O7−x (Re = Y, Ho) single crystals

2019 ◽  
Vol 33 (04) ◽  
pp. 1950039
Author(s):  
G. Ya. Khadzhai ◽  
N. R. Vovk ◽  
R. V. Vovk ◽  
I. L. Goulatis ◽  
O. V. Dobrovolskiy
Keyword(s):  
High Pressure ◽  
Electrical Resistivity ◽  
Hydrostatic Pressure ◽  
Single Crystals ◽  
High Hydrostatic Pressure ◽  
Room Temperature ◽  
Diffusion Mechanisms ◽  
Diffusion Coalescence

The effect of high hydrostatic pressure on the relaxation of the electrical resistivity at room temperature of oxygen-nonstoichiometric [Formula: see text] (Re = Y, Ho) single crystals is investigated. The application of hydrostatic pressure has been revealed to significantly intensify the process of diffusion coalescence in the oxygen subsystem. At the same time, the intensity of the redistribution of labile oxygen is significantly changed when yttrium is replaced by holmium.

scholarly journals Влияние низкотемпературной термообработки на развитие сверхэластичности в монокристаллах Ti-50.6 at.% Ni

2019 ◽  
Vol 45 (3) ◽  
pp. 55
Author(s):  
Е.Е. Тимофеева ◽  
Н.Ю. Суриков ◽  
А.И. Тагильцев ◽  
А.С. Ефтифеева ◽  
А.Б. Тохметова ◽  
...  
Keyword(s):  
Martensitic Transformation ◽  
Low Temperature ◽  
Single Crystals ◽  
High Strength ◽  
Strength Properties ◽  
Martensite Formation ◽  
Nanoscale Particles ◽  
Low Temperature Aging ◽  
Temperature Aging

AbstractAs a result of low-temperature aging at 573 K for 1.5 h of Ti–50.6 at% Ni [001]-oriented single crystals quenched from 1253 K, a high-strength state is obtained due to the precipitation of Ti_3Ni_4 nanoscale particles ( d < 10 nm). The aging leads to the development of the B 2– B 19' martensitic transformation through an intermediate R phase, a reduction in the B 19' martensite formation temperatures by 40–60 K, an increase in the strength properties of the B 2 phase from 730 to 2100 MPa, and an extension of the superelasticity interval Δ T _SE in compression from Δ T _SE = 60 to 170 K (compared to quenched crystals).

The memory effect in Eu2(MoO4)3 single crystals exposed to high hydrostatic pressure

2010 ◽  
Vol 74 (5) ◽  
pp. 619-621
Author(s):  
T. N. Fursova ◽  
A. V. Bazhenov ◽  
S. S. Khasanov ◽  
A. P. Kiselev ◽  
V. V. Sinitsyn ◽  
...  
Keyword(s):  
Hydrostatic Pressure ◽  
Single Crystals ◽  
Memory Effect ◽  
High Hydrostatic Pressure
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