FIELD: production of branches of thermocouples based on bismuth telluride Bi2Te3. SUBSTANCE: device for production of thermoelectric materials has airtight container from quartz glass in which ingot shaper is made integral with container reactor part. Combined container is located horizontally on the device and provided with driven coupling which rotates it in tube furnace for synthesis. In addition, the device has unit for floating-zone refinement with mechanism moving the furnace along ingot shaper. EFFECT: increased output of materials due to increased diameter of produced crystal and its length on the existing equipment and production areas and reduced cost of produced materials. 2 dwg
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