O.N. Manik. Zinc antimonide. 1. Physical properties. Crystalline
structure. Chemical bond
Calculations of force constants by the methods of chemical bond
microscopic theory have been made. Analytical expressions for hybrid orbitals
have been obtained. Molecular model of Zn and Sb has been built.
Ya.I. Lepikh. High-Temperature Ferroelectric Ceramic Sensor With Increased Sensitivity and Dynamic Response
F. Skoropad. Disinclination and Structural Condition of Metal Glasses
With the purpose of identification of a structure of metal glasses
the concept disinclination - imperfections of a structural condition formed
hy adding or an excision of a wedge from structural unit of a material
is offered. If the crystal is primary has a hexagonal symmetry, in amorphous
a condition all rings of connections, distinct from hexagonal, consider
as topological defects. The model amorphous of a condition offered by Frank
for the description of a structural condition of a liquid assumes availability
in the last local non-crystalline ordering by formation of clusters with
pentagonal elements of symmetry. The indicated clusters, on the one hand,
should have a property of self-restriction of growth, and with other -
should have a power barrier for want of transformation in a crystalline
phase. It is reached by that the further growth of a crystalline phase,
is impossible by virtue of increase of energy positive 600 disinclination
of declination, which availability and determines a pentagonal symmetry
of clusters. The origin separate and full of disinclination in macrocrystal
- is improbable, proceeding from two reasons: a) the elastic energy disinclination
has linear energy were in quadratic dependence on sizes of crystal; b)
the introduction in crystals positive and negative disinclination calls
emerging in the last axeses of a symmetry fifth or seventh is ordinal,
prohibited in microchips by the laws of a crystallography. Nevertheless,
in microchips by a size about several hundreds angstrom, the existence
separate disinclination, and, therefore, and mentioned prohibited axeses
of a symmetry, becomes already actual. Therefore, it is possible to make
a conclusion, that in unregulated structures there are favorable conditions
for formation disinclination.
S. Vackova. Charge Redistribution in the Structure Au/p-CdZnTe/Au
under the Temperature Gradient
This work was supported by grant CEZ J04/98 210000018 and grant
FRVS 07SO.
In the p-type CdZnTe crystals with the Au barrier there is possible
to observe a change of the barrier height and accumulation of the space
charge by the temperature gradient and to exploit the effect for practical
purpose. There are two types of experiments where this effect approves
itself: (i) measurement of thermopower in samples Au/p-CdZnTe with 4 %
Zn where an abrupt increase of thermovoltage depends on the applied temperature
gradient, (ii) shift of 1-V characteristics with the temperature gradient.
The results of our measurements are compared with the Gurevich's theory
for the charge redistribution
D.M. Freik, L.I. Mezhylovska, A. V. Lysak, R.I. Zapukhlyak, V. V.
Prokopiv, R. Ya. Mychajlyonka. Influence Of Oxygen to Thermoelectric Properties
Thin Films Oftelluride of Lead
The influence of oxygen to thermoelectric properties thin films
is investigated n-PbTe. Is uncovered is anomalous high values of a factor
thermo electrical driving force. And growth thermoelectric power at an
adsorption of oxygen by a surface films.
Key word: thin films, telluride of lead, thermal annealing, adsorption
of oxygen
V.Ya. Mikhailovsky. Construction Diagrams and Efficiency of Thermoelectric Generators with a Catalytic Heat Source
A.A. Ashcheulov, I.S. Romanyuk, A.G. Shaiko-Shaikovsky. Procedure
for Assessment of Strength Parameters of Multi-Stage Thermoelectric Coolers
The methods for calculating the values of elastic mechanical stresses
of p- and n-legs, originating in the assembly and use of multi-stage Peltier
cooler have been developed. The natural vibration frequencies of the design
have been determined
L.I. Anatychuk, V.Ya. Mikhailovsky, L.T. Strutinskaya. Catalytic Generators of Thermal and Electric Energy on Gaseous Fuel
A. A. Ashcheulov, V. Y. Boretz, Yu. G. Dobrovolskii. I. S. Romanyuk
, A. G. Shaiko-Shaikovskii. A Unit for Thermal Reflexotherapy
A unit for thermal reflexotherapy based on the Pettier effect has
been designed. Cooling and heating of the biologically active points (BAP)
is realized by two-stage thermoelectric battery. The unit is capable to
react in the temperature range from -35 C to 125 C both in static and dynamic
regimes (depending on the preset law). Laboratory tests have been done
NEWS. IXth International Forum on Thermoelectricity