A multi-layer shell structure for high-strength thermal loading protection and a manufacturing method thereof

Abstract

The present invention provides a multilayer shell structure for high-intensity thermal loading protection and a manufacturing method thereof, which belongs to the field of laser protection technology. The shell structure includes a high-entropy ceramic layer, an aerogel layer and a high-entropy alloy layer arranged from the outside to the inside, the aerogel layer is between the high-entropy ceramic layer and the high-entropy alloy layer, the high-entropy ceramic layer is covered on the outside of the aerogel layer, and the high-entropy alloy layer is covered on the inside of the aerogel layer, and the total thickness of the shell structure is 5mm; its manufacturing method includes: preparing the high-entropy ceramic plate, aerogel sheet and high-entropy alloy plate in sequence respectively, and stacking the obtained high-entropy ceramic plate, aerogel sheet and high-entropy alloy layer in the order of outer layer, middle layer and inner layer respectively, and then heating and pressing composite molding to obtain the shell structure. The present invention adopts the shell structure provided above to effectively reflect and absorb high-energy lasers, and at the same time has good thermal isolation and high temperature resistance to protect the internal structure from laser and thermal energy damage.

Description

Technical Field

[0001] The present invention relates to the technical field of laser protection, and in particular to a multi-layer shell structure for high-intensity heat loading protection and a manufacturing method thereof. Background Art

[0002] In recent years, with the rapid advancement of laser technology, high-energy laser weapons have become an important part of the modern battlefield. Compared with traditional weapon systems, high-energy laser weapons have significant advantages such as fast response speed, high accuracy, low loss and difficulty in detection. They can accurately strike targets from thousands of meters away, release a large amount of energy in an instant, and cause fatal damage to enemy equipment. The development of this weapon system urgently requires the proposal of effective laser protection solutions to protect military and civilian assets from laser attacks.

[0003] In terms of laser protection, traditional protection methods mainly include reflective coatings, absorbent materials and thermal insulation layers. Reflective coatings reduce damage to targets by reflecting laser energy, but their effectiveness is limited by the laser wavelength and incident angle. Absorbent materials can absorb part of the laser energy and convert it into heat energy, but they are prone to overheating and damage under the action of high-energy lasers. Thermal insulation layers are designed to slow down heat transfer and protect internal structures, but their protection capabilities are limited and they increase the weight and volume of the system.

[0004] Due to the characteristics of high-energy lasers, such as high power density and concentrated energy, traditional protection methods face huge challenges. In particular, under continuous or multiple laser irradiation, traditional materials often cannot provide long-lasting and effective protection. Therefore, the development of new laser protection technologies and materials that can effectively reflect, absorb and isolate the high temperature generated by lasers, while also having the characteristics of being lightweight, efficient and durable, has become a research focus in the field of laser protection. Summary of the invention

[0005] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide a multi-layer shell structure for high-intensity thermal loading protection and a manufacturing method thereof. The structure can effectively reflect and absorb high-energy lasers, and at the same time has good thermal isolation and high temperature resistance to protect the internal structure from damage by laser and thermal energy. The structure is suitable for a variety of occasions that require defense against high-energy laser attacks.

[0006] To achieve the above-mentioned purpose, the present invention provides the following solution: a multi-layer shell structure for high-intensity thermal loading protection, the shell structure comprising a high-entropy ceramic layer, an aerogel layer and a high-entropy alloy layer arranged from the outside to the inside, the aerogel layer is between the high-entropy ceramic layer and the high-entropy alloy layer, the high-entropy ceramic layer is covered on the outside of the aerogel layer, the high-entropy alloy layer is covered on the inside of the aerogel layer, and the total thickness of the shell structure is 5 mm.

[0007] Preferably, the high entropy ceramic layer is the outer layer of the shell structure, and its structure is a high entropy ceramic plate with a thickness of 2.5 mm, which is used to reflect and initially absorb laser energy and provide physical protection against high temperature and wear.

[0008] Preferably, the aerogel layer is the middle layer of the shell structure, and its structure is an aerogel sheet with a thickness of 1.0 mm, which is used to isolate or slow down the transfer of heat.

[0009] Preferably, the high entropy alloy layer is the inner layer of the outer shell structure, and its structure is a high entropy alloy plate with a thickness of 1.5 mm, which is used for absorbing heat.

[0010] The present invention also provides a method for manufacturing a multi-layer shell structure for high-intensity thermal loading protection, comprising: preparing the high-entropy ceramic plate, aerogel sheet and high-entropy alloy plate in sequence respectively, stacking the obtained high-entropy ceramic plate, aerogel sheet and high-entropy alloy layer in the order of outer layer, middle layer and inner layer respectively, and then obtaining the shell structure by heating and pressurizing composite molding.

[0011] Preferably, the preparation of the high entropy ceramic plate comprises: adopting a traditional ceramic manufacturing method to obtain a high entropy ceramic plate with a thickness of 2.5 mm by high temperature sintering.

[0012] Preferably, the preparation of the aerogel sheet comprises: obtaining aerogel by a sol-gel method, and obtaining an aerogel sheet with a thickness of 1.0 mm by drying and supercritical drying processes.

[0013] Preferably, the preparation of the high entropy alloy plate includes: obtaining the high entropy alloy by powder metallurgy, and preparing the high entropy alloy plate with a thickness of 1.5 mm by sintering.

[0014] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0015] The present invention provides a multi-layer shell structure for high-intensity thermal loading protection and a manufacturing method thereof. The structure can effectively reflect and absorb high-energy lasers, and at the same time has good thermal isolation and high-temperature resistance to protect the internal structure from damage by laser and thermal energy. The structure is suitable for a variety of occasions that require defense against high-energy laser attacks. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 A schematic structural diagram of a multi-layer shell structure for high-strength thermal loading protection provided by the present invention;

[0018] Figure 2 A flowchart provided for a method of manufacturing a multi-layer shell structure for high-strength thermal loading protection according to the present invention;

[0019] Reference numerals

[0020] 1-high entropy alloy layer, 2-aerogel layer, 3-high entropy ceramic layer. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The purpose of the present invention is to provide a multi-layer shell structure for high-intensity thermal loading protection and a manufacturing method thereof. The structure can effectively reflect and absorb high-energy lasers, and at the same time has good thermal isolation and high temperature resistance to protect the internal structure from damage by laser and thermal energy. The structure is suitable for a variety of occasions that require defense against high-energy laser attacks.

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Embodiment 1

[0025] like Figure 1 As shown, this embodiment provides a multi-layer shell structure for high-intensity thermal loading protection, the shell structure includes a high-entropy ceramic layer 3, an aerogel layer 2 and a high-entropy alloy layer 1 arranged from the outside to the inside, the aerogel layer 2 is between the high-entropy ceramic layer 3 and the high-entropy alloy layer 1, the high-entropy ceramic layer 3 is covered on the outside of the aerogel layer 2, the high-entropy alloy layer 1 is covered on the inside of the aerogel layer 2, and the total thickness of the shell structure is 5 mm.

[0026] Among them, the high entropy ceramic layer 3 is the outer layer of the shell structure, and its structure is a high entropy ceramic plate with a thickness of 2.5 mm. It is used to reflect and preliminarily absorb laser energy and provide physical protection against high temperature and wear; the aerogel layer 2 is the middle layer of the shell structure, and its structure is an aerogel sheet with a thickness of 1.0 mm. It is used to isolate or slow down the transfer of heat; the high entropy alloy layer 1 is the inner layer of the shell structure, and its structure is a high entropy alloy plate with a thickness of 1.5 mm. It is used to absorb heat.

[0027] Reference Figure 2 The present embodiment also provides a method for manufacturing a multilayer shell structure for high-strength thermal loading protection, comprising: preparing a high-entropy ceramic plate, an aerogel sheet, and a high-entropy alloy plate in sequence, stacking the obtained high-entropy ceramic plate, aerogel sheet, and high-entropy alloy layer in the order of outer layer, middle layer, and inner layer, respectively, and then obtaining a shell structure by heating and pressurizing composite molding.

[0028] First, the preparation of the high-entropy ceramic plate includes: using traditional ceramic manufacturing methods to obtain a high-entropy ceramic plate with a thickness of 2.5 mm through high-temperature sintering, so as to ensure that the outer layer structure has sufficient strength and reflection ability to withstand the direct impact of high-energy lasers.

[0029] Secondly, the preparation of the aerogel sheet includes: obtaining aerogel by a sol-gel method, and preparing an aerogel sheet with a thickness of 1.0 mm by drying and supercritical drying processes. Among them, the aerogel sheet is the main structure of the aerogel layer, and its low thermal conductivity can help slow down the transfer of heat, protect the interior of the structure from excessive heating, and avoid damage to the interior of the structure due to heat.

[0030] Again, the preparation of the high entropy alloy plate includes: obtaining the high entropy alloy by powder metallurgy, and preparing a high entropy alloy plate with a thickness of 1.5 mm by sintering. The high entropy alloy is selected for its excellent mechanical properties and high temperature resistance, which can effectively absorb and disperse the heat generated by the laser to ensure the safety of the internal structure.

[0031] Finally, the obtained high-entropy ceramic plates, aerogel sheets and high-entropy alloy plates are stacked in a top-down order using lamination technology, and then the stacked structure is heated and pressurized to ensure that the layers are tightly combined to form an overall shell structure, ensuring that the three layers of materials can work together to improve the laser protection performance of the shell structure.

[0032] Therefore, the present invention adopts the above-mentioned multi-layer shell structure for high-intensity thermal loading protection and its manufacturing method. The structure can effectively reflect and absorb high-energy lasers, and at the same time has good thermal isolation and high temperature resistance to protect the internal structure from laser and thermal energy damage. It is suitable for a variety of occasions that require defense against high-energy laser attacks.

[0033] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the system disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0034] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A multi-layer shell structure for high-strength thermal loading protection, characterized in that: The outer shell structure comprises a high entropy ceramic layer, an aerogel layer and a high entropy alloy layer arranged from the outside to the inside, the aerogel layer is between the high entropy ceramic layer and the high entropy alloy layer, the high entropy ceramic layer is covered on the outside of the aerogel layer, the high entropy alloy layer is covered on the inside of the aerogel layer, and the total thickness of the outer shell structure is 5 mm; The high entropy ceramic layer is the outer layer of the shell structure, and its structure is a high entropy ceramic plate with a thickness of 2.5 mm, which is used to reflect and preliminarily absorb laser energy and provide physical protection against high temperature and wear; the aerogel layer is the middle layer of the shell structure, and its structure is an aerogel sheet with a thickness of 1.0 mm, which is used to isolate or slow down the transfer of heat; The high entropy alloy layer is the inner layer of the outer shell structure, and its structure is a high entropy alloy plate with a thickness of 1.5 mm, which is used for absorbing heat.

2. A method for manufacturing a multilayer shell structure for high-strength thermal loading protection according to claim 1, characterized in that: include: The high entropy ceramic plate, aerogel sheet and high entropy alloy plate are prepared in sequence respectively, and the obtained high entropy ceramic plate, aerogel sheet and high entropy alloy layer are stacked in the order of outer layer, middle layer and inner layer respectively, and then compositely formed by heating and pressurizing to obtain the shell structure.

3. A method for manufacturing a multilayer shell structure for high-strength thermal loading protection according to claim 2, characterized in that: The preparation of the high entropy ceramic plate comprises: adopting a traditional ceramic manufacturing method to obtain a high entropy ceramic plate with a thickness of 2.5 mm through high-temperature sintering.

4. The method for manufacturing a multilayer shell structure for high-strength thermal loading protection according to claim 2, characterized in that: The preparation of the aerogel sheet comprises: obtaining aerogel by a sol-gel method, and obtaining an aerogel sheet with a thickness of 1.0 mm by drying and supercritical drying processes.

5. The method for manufacturing a multi-layer shell structure for high-strength thermal loading protection according to claim 2, characterized in that: The preparation of the high entropy alloy plate comprises: obtaining the high entropy alloy by a powder metallurgy method, and preparing the high entropy alloy plate with a thickness of 1.5 mm by a sintering method.

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