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

Skutterudite based thermoelectric material, thermal protection coating for devices and preparation method thereof

A thermoelectric material and thermal protection technology, which can be used in thermoelectric device parts, coatings, etc., and can solve problems such as reducing the efficiency of thermoelectric devices

Active Publication Date: 2013-06-12
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI +1
View PDF6 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existence of the metal bottom layer will inevitably lead to the existence of leakage current, which will undoubtedly reduce the efficiency of thermoelectric devices.

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
  • Skutterudite based thermoelectric material, thermal protection coating for devices and preparation method thereof
  • Skutterudite based thermoelectric material, thermal protection coating for devices and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0061] In a second aspect of the present invention, a method for preparing a skutterudite-based thermoelectric material and a thermal protection coating for a device is provided, the method comprising:

[0062] The organosilicon sol obtained after the hydrolysis and polymerization of the organosilane coupling agent at 4-80°C is the component A; the inorganic water-based silica sol is mixed with glass powder and other powder materials according to a certain ratio, and an appropriate amount of additives is added, and the mixture is evenly mixed by ball milling Component B is finally obtained; the organic component A and the inorganic component B are blended and stirred evenly, and then coated on the surface of the surface-treated skutterudite-based thermoelectric material to obtain an organic-inorganic composite heat-resistant and anti-oxidation coating .

[0063] In the present invention, the prepared composite slurry can be applied by various coating methods such as dip coatin...

Embodiment 1

[0077] Take 15.00 g of methyltrimethoxysilane, 5.00 g of ethanol, and 5.01 g of water, adjust the pH to 3-4 with nitric acid, and bathe in oil at 60°C for 10 minutes to obtain component A. Mix glass powder and silica sol uniformly at a ratio of 1:1 (parts by weight) to obtain component B. Blend B and A at a ratio of 1:5, and stir evenly to obtain the desired slurry. Apply the slurry on the surface of the skutterudite-based thermoelectric material that has been sandblasted (the π-type device is polished to 400 mesh), ultrasonically cleaned, and dried at 80°C, and cured once in a vacuum drying oven at 100°C×2 hours at a low temperature to obtain a coating.

Embodiment 2

[0079] Preparation of Component A: Blend 13.61 grams of methyltrimethoxysilane with 5.4 grams of deionized water adjusted to pH 4-5 with nitric acid, and stir in a water bath at 60°C for 20 minutes to obtain Component A, which is Hydrolyzed polymer product of methyltrimethoxysilane.

[0080] Preparation of Component B: Blend 4.99 g of glass powder with 5.09 g of silica sol, add an appropriate amount of dispersant and other additives, and ball mill at 206 rpm for 5 hours to obtain Component B. Next, component A was added to component B, and ball milled at 150 rpm for 20 minutes to obtain an organic-inorganic composite slurry. Coat it on the surface of the skutterudite-based thermoelectric material that has been sandblasted (the π-type device is ground to 400 mesh), ultrasonically cleaned, and dried at 80°C, cured once, and preheated in air: 60°C×4 hours , and then 100 °C x 2 hours. That is, a non-vitrified primary cured coating is obtained.

[0081] The slurry of Example 2 w...

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
thermoelectric figure of meritaaaaaaaaaa
Login to View More

Abstract

The invention relates to a skutterudite based thermoelectric material, a thermal protection coating for devices and a preparation method thereof. The skutterudite based thermoelectric material and the thermal protection coating for the devices comprise the following components: 20-80 weight parts of organosilane, 3-60 weight parts of silica sol, 3-55 weight parts of glass powder and 3-50 weight parts of water. The invention further provides the preparation method of the skutterudite based thermoelectric material and the thermal protection coating for the devices.

Description

technical field [0001] The invention belongs to the technical field of thermoelectric power generation, and relates to a two-component secondary curing thermal protective coating material, in particular to the protection of thermoelectric materials and devices. More specifically, the present invention provides a thermal protective coating applied to skutterudite-based thermoelectric materials and devices and a preparation method thereof. Background technique [0002] As a functional material that directly converts thermal energy and electrical energy, thermoelectric materials use their own Seebeck effect and Peltier effect to directly convert thermal energy and electrical energy. Thermoelectric power generation and refrigeration devices are small in size, light in weight, without any mechanical transmission parts, and work without noise. They have broad application prospects in aerospace technology, waste heat power generation, thermoelectric refrigerators, infrared detector...

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 Applications(China)
IPC IPC(8): C09D183/04C09D7/12C09D5/00H01L35/02H10N10/80
Inventor 陈立东董洪亮李小亚黄向阳江莞唐云山夏绪贵唐锦城何琳
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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