Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A cu-doped cubic ca2si thermoelectric material

A technology of thermoelectric materials and cubic phase, which is applied in the direction of thermoelectric device junction lead-out materials, thermoelectric device manufacturing/processing, metal silicide, etc., can solve the problems of thermoelectric materials that have not been reported, and meet the needs of large-scale production, The effect of controllable composition and low reaction temperature

Inactive Publication Date: 2018-04-13
FUZHOU UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently, regarding Cu-doped cubic Ca 2 Si thermoelectric materials are still almost unreported

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A cu-doped cubic ca2si thermoelectric material
  • A cu-doped cubic ca2si thermoelectric material
  • A cu-doped cubic ca2si thermoelectric material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A Cu-doped cubic Ca phase 2 The preparation method of Si thermoelectric material comprises the following steps:

[0025] 1) Mix Ca powder, Si powder and Cu powder uniformly under an Ar gas protective atmosphere at a molar ratio of Ca, Si and Cu of 81:20:0.5 to obtain a mixture powder;

[0026] 2) Put the mixture powder obtained in step 1), grinding steel balls, vacuum stainless steel ball milling tank and electronic balance into a glove box filled with Ar gas at an atmospheric pressure; accurately weigh the grinding steel balls in the glove box at a weight ratio of 3:1 and the mixture powder, and put it into a vacuum stainless steel ball mill jar, then seal the vacuum stainless steel ball mill jar to avoid oxygen entry; then take out the vacuum stainless steel ball mill jar from the glove box;

[0027] 3) Put the vacuum stainless steel ball mill tank prepared in step 2) into the ball mill, and ball mill at a speed of 2000 rpm for 5 hours to fully react the mixture powd...

Embodiment 2

[0030] A Cu-doped cubic Ca phase 2 The preparation method of Si thermoelectric material comprises the following steps:

[0031] 1) Mix Ca powder, Si powder and Cu powder uniformly under the protective atmosphere of Ar gas according to the molar ratio of Ca, Si and Cu of 81:20:6 to obtain the mixture powder;

[0032] 2) Put the mixture powder obtained in step 1), grinding steel balls, vacuum stainless steel ball milling tank and electronic balance into a glove box filled with Ar gas at an atmospheric pressure; accurately weigh the grinding steel balls in the glove box according to a weight ratio of 16:1 and the mixture powder, and put it into a vacuum stainless steel ball mill jar, then seal the vacuum stainless steel ball mill jar to avoid oxygen entry; then take out the vacuum stainless steel ball mill jar from the glove box;

[0033] 3) Put the vacuum stainless steel ball mill tank prepared in step 2) into the ball mill, and ball mill at a speed of 500 rpm for 100 hours to ...

Embodiment 3

[0038] A Cu-doped cubic Ca phase 2The preparation method of Si thermoelectric material comprises the following steps:

[0039] 1) Mix Ca powder, Si powder and Cu powder uniformly in an Ar gas protective atmosphere at a molar ratio of Ca, Si and Cu of 81:20:10 to obtain a mixture powder;

[0040] 2) Put the mixture powder obtained in step 1), grinding steel balls, vacuum stainless steel ball milling tank and electronic balance into a glove box filled with Ar gas at an atmospheric pressure; accurately weigh the grinding steel balls in the glove box at a weight ratio of 8:1 and the mixture powder, and put it into a vacuum stainless steel ball mill jar, then seal the vacuum stainless steel ball mill jar to avoid oxygen entry; then take out the vacuum stainless steel ball mill jar from the glove box;

[0041] 3) Put the vacuum stainless steel ball mill tank prepared in step 2) into the ball mill, and mill at a speed of 1000 rpm for 50 hours to fully react the mixture powder;

[0...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a Cu-doped cubic phase Ca2Si thermoelectric material. After uniformly mixing Ca powder, Si powder and Cu powder in an Ar gas protection atmosphere, the obtained mixture powder and grinding steel balls are placed in an Ar gas protection atmosphere. Put it into a vacuum stainless steel ball mill jar and seal it, and after the ball mill reaction, use plasma sintering to carry out vacuum sintering and pressing to obtain a flaky Cu-doped cubic phase Ca2Si thermoelectric material. Since Cu element has similar properties to alkaline earth metals, when Cu element is added, it is easy to replace the Ca site, doped as a donor, and provides conductive electrons as carriers, thereby improving the electrical conductivity and thermoelectric properties of the material. The invention has the advantages of simple process, easy operation, low cost, etc., and the obtained Cu-doped cubic phase Ca2Si thermoelectric material has high purity, tight combination, and good industrialization prospect.

Description

technical field [0001] The invention belongs to the technical field of thermoelectric functional materials, in particular to a Cu-doped cubic phase Ca 2 Si thermoelectric material. Background technique [0002] With the increasingly serious energy crisis, it is urgent to actively promote and promote the use of clean renewable energy, especially the combination of new technology development and industrialization investment in renewable energy to reduce the cost of renewable energy utilization. Thermoelectric devices can realize mutual conversion between thermal energy and electric energy, and are green and environmentally friendly energy devices with a wide range of applications. Semiconductor generators and refrigerators made of semiconductor thermoelectric power generation modules can generate electricity as long as there is a temperature difference, and can be used for cooling when supplying power. They work without noise and pollution, and have a service life of more tha...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01L35/14H01L35/34C01B33/06
CPCC01B33/06H10N10/851H10N10/01
Inventor 温翠莲熊锐萨百晟裘依梅林逵洪云
Owner FUZHOU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com