SU219648A1 - MATERIAL FOR POSITIVE BRANCH OF THE THERMAL ELEMENT - Google Patents
MATERIAL FOR POSITIVE BRANCH OF THE THERMAL ELEMENTInfo
- Publication number
- SU219648A1 SU219648A1 SU854291A SU854291A SU219648A1 SU 219648 A1 SU219648 A1 SU 219648A1 SU 854291 A SU854291 A SU 854291A SU 854291 A SU854291 A SU 854291A SU 219648 A1 SU219648 A1 SU 219648A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- positive branch
- thermal element
- alloy
- thermoelectric
- temperature
- Prior art date
Links
- 239000000463 material Substances 0.000 title description 7
- 239000000956 alloy Substances 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 8
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 8
- -1 13.9 Chemical compound 0.000 description 3
- 229910052787 antimony Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910052797 bismuth Inorganic materials 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 230000002194 synthesizing Effects 0.000 description 3
- 229910052714 tellurium Inorganic materials 0.000 description 3
- 239000003708 ampul Substances 0.000 description 2
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 2
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 2
- 238000005275 alloying Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 229910052904 quartz Inorganic materials 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Description
С целью улучшени термоэлектрических свойств термоэлемента в широком интервале температур предлагаетс материал дл его положительной ветви, который представл ет собой многофазный силав Си Sbo.s , Bio,2 Те.In order to improve the thermoelectric properties of a thermoelement in a wide range of temperatures, a material is proposed for its positive branch, which is a multiphase force C Sbo.s, Bio, 2 Te.
Сплав содержит, %: меди 13,9, сурьмы 21,1, висмута 8,9 и теллура 56,1.The alloy contains,%: copper 13.9, antimony 21.1, bismuth 8.9 and tellurium 56.1.
Кварцевую ампулу откачивают до вакуума , заполи ют сплавом и запаивают.The quartz ampoule is pumped out to vacuum, sealed with alloy and sealed.
Синтез ведут методом сплавлеии компонентов сплава. Дл этого печь разогревают до 1200°С и в нее вставл ют ампулу. Осуш,ествл ют синтез в течение 2 час с периодическим взбалтыванием сплава.Synthesis of lead alloying method components. For this, the furnace is heated to 1200 ° C and an ampoule is inserted into it. Drying off the synthesis for 2 hours with occasional stirring of the alloy.
После синтеза слиток дроб т в ступке с фарфоровым пестиком до крупинок размером 0,25 мм и прессуют в разъемной прессформе с подогревом в брикеты. Температура прессовани 200°С, давление 7 т/см, врем выдержки под давлением 5 мин. Размер полученных брикетов ЗОхЮХ 10 мм.After synthesis, the ingot was crushed in a mortar with a porcelain pestle to grains of 0.25 mm in size and pressed into a split mold with heating into briquettes. The pressing temperature was 200 ° C, the pressure was 7 t / cm, and the holding time under pressure was 5 minutes. The size of the obtained briquettes ZOHYUH 10 mm.
После прессовки брикеты подвергают 40часовому отжигу в вакууме при температуре 300°С.After pressing, the briquettes are subjected to 40-hour annealing in vacuum at a temperature of 300 ° C.
Полученные по указанной технологии термоэлементы имеют следующие термоэлектрические параметры:Thermoelements obtained by this technology have the following thermoelectric parameters:
л 16 Г2 вт/см градl 16 G2 w / cm hail
г 1,23-10-3 /градg 1.23-10-3 / degree
при температуре ЗОО-Сat temperature ZOO-C
а 150 мкв/град .and 150 µv / deg.
л- 16 72 вт/см градl- 16 72 w / cm hail
2 2,01 . 10-3 1/град.2 2.01. 10-3 1 / deg.
Сплав имеет дырочную проводимость.The alloy has a hole conductivity.
Как видно из приведенных термоэлектрических параметров, частична замена Sb на Bi и полученный таким образом сплав имеет минимальную теплопроводность по сравнению с известными термоэлектрическими материалами (при равноценных значени х а и а),что весьма суш:ественно при выборе эффективпого материала дл термоэлементов.As can be seen from the above thermoelectric parameters, the partial replacement of Sb by Bi and the alloy thus obtained has a minimum thermal conductivity compared to the known thermoelectric materials (with equal values of a and a), which is quite dry when choosing an effective material for thermoelements.
Такой материал с эффективностью 2 2-01 1/град в области температур 300°С может быть использован дл термоэлектрических генераторов.Such a material with an efficiency of 2 2-01 1 / deg in the temperature range of 300 ° С can be used for thermoelectric generators.
Предмет изобретени Subject invention
1. Материал дл положительной ветви термоэлемента , выполненный на основе сплава, содерл ащего Sb, Bi, Те, отличающийс тем, что, с целью повышени термоэлектрических свойств в широком интервале температур, он выполнен из многофазного сплава Си Sbo,8 Bio,2 Тео. 3 2. Материал по п. 1, отличающийс тем, что указанный сплав соответственно содержит, 4 о/о: меди 13,9, сурьмы 21,1, висмута 8,9 и теллура 56,1.1. Material for the positive branch of a thermoelement, made on the basis of an alloy containing Sb, Bi, Te, characterized in that, in order to improve thermoelectric properties in a wide temperature range, it is made of a multiphase alloy C Sbo, 8 Bio, 2 Theo. 3 2. The material of claim 1, wherein said alloy contains, respectively, 4 o / o: copper, 13.9, antimony, 21.1, bismuth, 8.9, and tellurium, 56.1.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU219648A1 true SU219648A1 (en) |
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