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Radar-infrared compatible stealth material with adjustable property and preparation method thereof

A stealth material and radar technology, applied to radiation-absorbing coatings, coatings, etc., can solve the problems of fixed performance and complicated preparation methods, and achieve the effects of low cost, simple process flow, and simple preparation methods

Active Publication Date: 2014-01-08
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the preparation of radar infrared compatible stealth materials is various, the preparation method is relatively complicated, and the performance is relatively fixed.

Method used

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  • Radar-infrared compatible stealth material with adjustable property and preparation method thereof
  • Radar-infrared compatible stealth material with adjustable property and preparation method thereof
  • Radar-infrared compatible stealth material with adjustable property and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0034] A method for preparing a radar-infrared compatible stealth material with adjustable performance, comprising the following steps:

[0035] Step 1, at room temperature, take 100g of steel balls with a diameter of 4mm, 10g of carbonyl iron powder, and 0.01g of calcium stearate, measure 30ml of acetone solution, add them to a 100ml ball mill jar, and mill at a speed of 500 rpm for 8 hours;

[0036] Step 2, put the carbonyl iron powder after ball milling into 100ml degreasing liquid, and degrease at 50°C for 8 minutes; wherein, in the degreasing liquid, the mass concentration of NaOH is 40g / L, NaCO 3 The mass concentration is 20g / L, Na 4 P 2 o 7 The mass concentration is 20g / L;

[0037] Step 3, put the degreased carbonyl iron powder into 200ml of electroless plating solution, adjust the pH value of the chemical plating solution to 13 with NaOH, and then perform plating at 30°C for 45 minutes; among them, in the chemical plating solution, potassium citrate The mass concen...

Embodiment 2

[0040] A method for preparing a radar-infrared compatible stealth material with adjustable performance, comprising the following steps:

[0041] Step 1, at room temperature, take 100g of steel balls with a diameter of 4mm, 10g of carbonyl iron powder, and 0.1g of calcium stearate, measure 40ml of acetone solution, add them to a 100ml ball mill jar, and mill at a speed of 500 rpm for 10 hours;

[0042] Step 2, put the carbonyl iron powder after ball milling into 100ml degreasing liquid, and degrease at 60°C for 9 minutes; wherein, in the degreasing liquid, the mass concentration of NaOH is 40g / L, NaCO 3 The mass concentration is 20g / L, Na 4 P 2 o 7 The mass concentration is 20g / L;

[0043]Step 3, put the degreased carbonyl iron powder into 200ml of electroless plating solution, adjust the pH value of the chemical plating solution to 14 with NaOH, and then perform plating at 60°C for 30 minutes; among them, in the chemical plating solution, potassium citrate The mass concent...

Embodiment 3

[0046] A method for preparing a radar-infrared compatible stealth material with adjustable performance, comprising the following steps:

[0047] Step 1, at room temperature, take 100g of steel balls with a diameter of 4mm, 10g of carbonyl iron powder, and 0.1g of calcium stearate, measure 40ml of acetone solution, add them to a 100ml ball mill jar, and mill at a speed of 500 rpm for 12 hours;

[0048] Step 2, put the carbonyl iron powder after ball milling into 100ml of degreasing liquid, and degrease at 70°C for 10 minutes; wherein, in the degreasing liquid, the mass concentration of NaOH is 50g / L, NaCO 3 The mass concentration is 25g / L, Na 4 P 2 o 7 The mass concentration is 25g / L;

[0049] Step 3, put the degreased carbonyl iron powder into 200ml electroless plating solution, adjust the pH value of the electroless plating solution to 14 with NaOH, and then perform plating at 75°C for 15 minutes; among them, in the electroless plating solution, potassium citrate The mass...

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Abstract

The invention discloses a radar-infrared compatible stealth material with adjustable property and a preparation method thereof. The preparation method comprises the following steps of: placing 100 grams of steel balls, 10 grams of carbonyl iron powder, 0.01-0.1 gram of calcium stearate and 30-50 milliliters of acetone solutions into a ball milling jar together for ball milling; placing the carbonyl iron powder subjected to the ball milling into a degreasing fluid, and degreasing at the temperature of 50-70 DEG C for 8-10 minutes; placing the degreased carbonyl iron powder into a chemical plating solution, and plating the carbonyl iron powder at 30-75 DEG C under the pH value of 13-14 for 15-45 minutes; cleaning and drying a material subjected to chemical plating to obtain a needed composite material. The preparation method disclosed by the invention has the advantages of simpleness, easiness and convenience for process flow and low cost.

Description

technical field [0001] The invention relates to an iron-copper composite material, and also relates to a preparation method of the iron-copper composite material, which belongs to the field of radar-infrared compatible stealth materials. Background technique [0002] With the development of military science and technology, military combat power, weapons and equipment, and important targets are easily discovered by existing detection methods, thus losing their due role. Stealth technology has become a necessary means to improve the combat effectiveness of weapons and equipment and enhance the survivability of military targets. Among them, research on compatible stealth, especially radar-infrared compatible stealth, has received more extensive attention. [0003] Because radar stealth requires materials to absorb a large amount of electromagnetic waves and completely lose them, while infrared stealth is just the opposite for materials, so radar infrared-compatible stealth is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/32C09D1/00C09D7/12
Inventor 姬广斌李晓光吕华良王敏
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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