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Ferrite-based high-temperature infrared radiation material and preparation method thereof

A high-temperature infrared and ferrite technology, applied in the field of infrared radiation materials, can solve the problems of low emissivity and absorption rate, inability to form doping effect, inactive electromagnetic wave response, etc., achieving low production cost, simple process, excellent Effects of Infrared Radiation Properties

Inactive Publication Date: 2014-01-15
湖北赛格瑞新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of solid-state reaction synthesis, the doping effect is often not ideal, the effective doping effect cannot be formed inside the material, the lattice distortion is insufficient, and the response to electromagnetic waves in the infrared band is not active, resulting in low emissivity and absorptivity.
In addition, in the existing patent (CN101555369A, CN1296315C) technology, most of the methods of conventional heating solid-state reaction synthesis to prepare infrared radiation materials need to go through a long time (>3h) high temperature process (>1250°C), high energy consumption and long cycle , which increases the production cost

Method used

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  • Ferrite-based high-temperature infrared radiation material and preparation method thereof
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  • Ferrite-based high-temperature infrared radiation material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A ferrite-based high-temperature infrared radiation material and a preparation method thereof. Its preparation steps are as follows:

[0027] The first step, preparation of spinel structure ferrite blackening agent

[0028] Press Fe 2 o 3 :MnO 2 :CuO:Co 2 o 3 The mass ratio is x: (8-x): 1: 1 (1≤x≤2) Fe 2 o 3 Fine powder, MnO 2 fine powder, CuO fine powder and Co 2 o 3 Mix the fine powder evenly to get the mixture, then put the mixture into the sagger, then put the sagger with the mixture into the microwave oven, heat it with radiation, raise the temperature to 900~950℃, keep it warm for 30~40min, Cool, and finally pulverize to below 200 mesh to obtain fine powder of spinel structure ferrite blackening agent, and set aside.

[0029] The second step, preparation of ferrite-based high-temperature infrared radiation materials

[0030] The fine powder of cordierite and the fine powder of ferrite blackening agent with spinel structure prepared in the first step ar...

Embodiment 2

[0032] A ferrite-based high-temperature infrared radiation material and a preparation method thereof. Its preparation steps are as follows:

[0033] The first step, preparation of spinel structure ferrite blackening agent

[0034] Press Fe 2 o 3 :MnO 2 :CuO:Co 2 o 3 The mass ratio is x: (8-x): 1: 1 (2≤x≤3) Fe 2 o 3 Fine powder, MnO 2 fine powder, CuO fine powder and Co 2 o 3 Mix the fine powder evenly to get the mixture, then put the mixture into the sagger, then put the sagger with the mixture into the microwave oven, heat it with radiation, raise the temperature to 950~1000℃, keep it warm for 40~50min, Cool, and finally pulverize to below 200 mesh to obtain fine powder of spinel structure ferrite blackening agent, and set aside.

[0035] The second step, preparation of ferrite-based high-temperature infrared radiation materials

[0036] The mullite fine powder and the spinel structure ferrite blackening agent fine powder prepared in the first step are mixed accor...

Embodiment 3

[0038]A ferrite-based high-temperature infrared radiation material and a preparation method thereof. Its preparation steps are as follows:

[0039] The first step, preparation of spinel structure ferrite blackening agent

[0040] Press Fe 2 o 3 :MnO 2 :CuO:Co 2 o 3 The mass ratio is x: (8-x): 1: 1 (3≤x≤4) Fe 2 o 3 Fine powder, MnO 2 fine powder, CuO fine powder and Co 2 o 3 Mix the fine powder evenly to get the mixture, then put the mixture into the sagger, then put the sagger with the mixture into the microwave oven, heat it with radiation, raise the temperature to 1000~1050℃, keep it warm for 50~60min, Cool, and finally pulverize to below 200 mesh to obtain fine powder of spinel structure ferrite blackening agent, and set aside.

[0041] The second step, preparation of ferrite-based high-temperature infrared radiation materials

[0042] The spodumene fine powder and the spinel structure ferrite blackening agent fine powder prepared in the first step are mixed acc...

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Abstract

The invention relates to a ferrite-based high-temperature infrared radiation material and a preparation method thereof. According to the technical scheme, the preparation method comprises the following steps of: evenly mixing Fe2O3 fine powder, MnO2 fine powder, CuO fine powder and Co2O3 fine powder, wherein the mass ratio of Fe2O3 to MnO2 to CuO to Co2O3 is x: (8-x):1:1 (x is larger than or equal to 1 and less than or equal to 7); filling the mixture into a sagger and then putting the sagger into a microwave oven, heating to 900-1180 DEG C, and carrying out heat preservation for 30-60 minutes to prepare a ferrite blackening agent; and evenly mixing one of cordierite fine powder, mullite fine powder and spodumene fine power with the ferrite blackening agent in a mass ratio of (1-4):1, filling evenly mixed prefabricate in the sagger and then putting the sagger into the microwave oven, heating to 1000 DEG C-1200 DEG C, and carrying out heat preservation for 30-60 minutues to obtain the ferrite-based high-temperature infrared radiation material. The method has the characteristics of short production period and low energy consumption; and the prepared ferrite-based high-temperature infrared radiation material is small in expansion coefficient and excellent in infrared radiation performance in middle-short wavebands.

Description

technical field [0001] The invention belongs to the technical field of infrared radiation materials, and in particular relates to a ferrite-based high-temperature infrared radiation material and a preparation method thereof. Background technique [0002] In the infrared radiation heating technology, it is generally required that the main wavelength of the infrared radiation of the infrared radiation material corresponds to the absorption peak wavelength of the heated object. As the temperature rises, the main peak of the infrared radiation moves to the short-wave band, which requires the infrared radiation material to have a relatively high emissivity in the short-wave band. In recent years, although the research on infrared radiation materials has made great progress, the emissivity of the far infrared region (6~25μm) has exceeded 0.9, but in the near infrared region (0.76~3μm) and mid-infrared region (3~6μm) materials The emissivity is still relatively low, only about 0.5...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/26C04B35/622
Inventor 樊希安胡晓明
Owner 湖北赛格瑞新能源科技有限公司
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