Title:
熱電性能が高いｎ型Ｍｇ３Ｓｂ２ベース材料を迅速に製造する方法
Document Type and Number:
Japanese Patent JP7217547
Kind Code:
B2
Abstract:
To provide a method for quickly manufacturing an n-type Mg3Sb2-based material having high thermoelectric performance.SOLUTION: An n-type Mg3Sb2-based thermoelectric material with high thermoelectric performance comprises an original composition of Mg3.2-xYxSb1.5Bi0.5-ySey, where x and y represent respective atomic percentages of x=0 to 0.1, and y=0 to 0.1, with prices of selected raw materials being low. The n-type Mg3Sb2- based thermoelectric material can be manufactured quickly and with high efficiency by a one-step ball-milling method, at low costs while saving energy. The material has: high reproducibility; excellent thermal stability; a lowest thermal conductivity value of 0.90 Wm-1K-1; a maximum power factor of 2451.70 μWm-1K-2 with 623K being a maximum value of the current system; and a maximum thermoelectric performance index of ZT=1.8 being one of maximum values of the current system. The material solves a problem existing in conventional temperature fusion and a two-step high energy ball-milling method that Mg elements volatilize, a solid phase reaction sealing tube condition is complex, and reaction takes a long time.SELECTED DRAWING: Figure 1
Inventors:
seedling bud
Jiang Liang
Liu Cheng Yan
Chen Shunyo
Jiang Liang
Liu Cheng Yan
Chen Shunyo
Application Number:
JP2021024045A
Publication Date:
February 03, 2023
Filing Date:
February 18, 2021
Export Citation:
Assignee:
▲広▼西大学
International Classes:
H10N10/853; B22F3/14; C22C1/04; C22C12/00; H10N10/01
Domestic Patent References:
| JP2001223392A | ||||
| JP2001044520A |
Foreign References:
| WO2017072982A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Goto Patent Office
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