A kind of high infrared radiation ceramic material and its preparation method and application

A technology of infrared radiation and ceramic materials, which is applied in the field of ceramics, can solve the problems of low infrared radiation rate and complicated preparation methods, and achieve the effects of improved infrared radiation performance, simple composition, and easy industrial production and application

Active Publication Date: 2021-11-16
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention aims to propose a high infrared radiation ceramic material to solve the problems that the existing high infrared radiation ceramic material has a low infrared radiation rate and complicated preparation methods

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A high infrared radiation ceramic material made of 50% La 2 o 3 (Base), 48% CeO 2 (base material), 1% Mn 2 o 3 (excipient) and 1% SrCO 3 (Excipient) Synthesized by high temperature solid state reaction.

[0024] The above-mentioned high infrared radiation ceramic material is specifically prepared by the following method:

[0025] According to the ratio of raw materials mentioned above, to the La 2 o 3 , CeO 2 Adding Mn as an excipient in 2 o 3 and SrCO 3 , followed by ball milling for 12 hours, drying, grinding, passing through a 250-mesh sieve, and then sintering in a high-temperature furnace at 900°C for 12 hours to carry out high-temperature solid-phase reaction. , Granulation, made of high infrared radiation ceramic materials.

[0026] The high infrared radiation ceramic material of this embodiment is sprayed onto the surface of the workpiece by a thermal spraying method to form a high infrared radiation ceramic coating with a thickness of 0.3 mm.

[00...

Embodiment 2

[0029] A high infrared radiation ceramic material made of 46% La 2 o 3 (Base), 48% CeO 2 (base material), 3% Mn 2 o 3 (excipient) and 3% SrCO 3 (Excipient) Synthesized by high temperature solid state reaction.

[0030] The above-mentioned high infrared radiation ceramic material is specifically prepared by the following method:

[0031] According to the ratio of raw materials mentioned above, to the La 2 o 3 , CeO 2 Adding Mn as an excipient in 2 o 3 and SrCO 3 , followed by ball milling for 12 hours, drying, grinding, passing through a 250-mesh sieve, and then sintering in a high-temperature furnace at 1100°C for 12 hours to carry out high-temperature solid-phase reaction. , Granulation, made of high infrared radiation ceramic materials.

[0032] The high infrared radiation ceramic material of this embodiment is sprayed onto the surface of the workpiece by a thermal spraying method to form a high infrared radiation ceramic coating with a thickness of 1 mm.

[003...

Embodiment 3

[0035] A high infrared radiation ceramic material made of 45% La 2 o 3 (base material), 45% CeO 2 (base material), 5% Mn 2 o 3 (excipient) and 5% SrCO 3 (Excipient) Synthesized by high temperature solid state reaction.

[0036] The above-mentioned high infrared radiation ceramic material is specifically prepared by the following method:

[0037] According to the ratio of raw materials mentioned above, to the La 2 o 3 , CeO 2 Adding Mn as an excipient in 2 o 3 and SrCO 3 , followed by ball milling for 12 hours, drying, grinding, passing through a 250-mesh sieve, and then sintering in a high-temperature furnace at 1300°C for 12 hours to carry out high-temperature solid-phase reaction. , Granulation, made of high infrared radiation ceramic materials.

[0038] The high infrared radiation ceramic material of this embodiment is sprayed onto the surface of the workpiece by a thermal spraying method to form a high infrared radiation ceramic coating with a thickness of 0.5 ...

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Abstract

The invention provides a high-infrared radiation ceramic material and its preparation method and application. The high-infrared radiation ceramic material is synthesized by a base material and an auxiliary material through a high-temperature solid-phase reaction; the base material includes La 2 o 3 and CeO 2 ; The auxiliary material includes Mn 2 o 3 , SrO, SrCO 3 One or more of them; by mass percentage, in the high infrared radiation ceramic material, the La 2 o 3 45% to 50%, the CeO 2 45% to 50%, and the auxiliary material is 1% to 5%. The high infrared radiation ceramic material of the present invention has simple raw material composition, good uniformity, stable infrared radiation performance and an infrared radiation rate of ≥0.95.

Description

technical field [0001] The invention relates to the technical field of ceramics, in particular to a high infrared radiation ceramic material and its preparation method and application. Background technique [0002] In recent years, with the development of supersonic aircraft, infrared radiation heat transfer technology has been developed rapidly; the intensification of the world's energy crisis has also promoted the rise of this technology in the civilian field, and gradually applied to the field of industrial heating and energy saving. The key to enhanced radiation heat transfer technology lies in the development of high infrared radiation materials. Ceramic materials have become the preferred materials due to their excellent chemical stability, high temperature stability and excellent infrared radiation performance, which has attracted great attention from all over the world. Therefore, the preparation and application technology of high infrared radiation ceramic material...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/50C04B35/622
Inventor 董淑娟张峰宁曹学强周鑫蒋佳宁邓龙辉
Owner WUHAN UNIV OF TECH
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