TB Nord produces generating modules assembled from Bi2Te3 - Sb2Te3 materials in two variants:
- with application of tin solder – 230 °C m.p.t
- with application of solder containing Pb – 280 °C m.p.t
♦ Modules are fabricated from temperature optimized thermoelectrical materials.
♦ Multilayers diffusion barriers provide exclusively small temperature degradation of modules during exploitation at high temperatures.
♦ Layers of elastic compound introduced between substrates and semiconductor dices effectively reduce thermo-mechanical stresses arisen at big temperature gradient in modules.♦ Cathaphoretic coating - AnticorThermoPlus - provides protection of all conductive parts inside modules against oxidation.
Specialists of Technological Bureau NORD in collaboration with technologists of affiliated Company RusTec LLC discovered feature of P-type which is important for TE generators performance at temperature above 1200C. Read more in article "Investigating the Performance of Bismuth-Antimony Telluride" by authors Z.Dashevsky, S.Skipidarov.
For the module marking we normally use the following index.
MT – thermoelectric module
XXX – number of couples
YY – side size of dice
ZZ – maximal current
M – glued technology
C – coating Anticor Thermo Plus
S – sealing around perimeter