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SiC ceramic thin-layer bullet-resistant material for laminated armor, and preparation method of material

An armor protection and thin-layer technology, which is applied in the field of SiC ceramic thin-layer bulletproof materials for laminated armor protection and its preparation, can solve the problems of low toughness, easy warping, cracking, etc., achieve good hardness and fracture toughness, and avoid Cracking, the effect of improving the strength of the green body

Inactive Publication Date: 2014-08-06
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, in order to solve the problems of low toughness of existing ceramic armor materials and the problems of drying and sintering of large-scale thin-layer ceramic products prepared by gel injection molding process, the present invention provides a laminated SiC ceramic large-scale thin-layer bulletproof material for layer armor protection and preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1: A kind of preparation method of SiC ceramic thin-layer bulletproof material for laminated armor, the steps are as follows:

[0044] 1) Ball milling and mixing

[0045]In parts by mass, weigh 100 parts of silicon carbide micropowder with an average particle diameter of 0.45 μm, 1 part of boron carbide micropowder with an average particle diameter of 1.5 μm, 20 parts of acrylamide monomer, 1.5 parts of N’N methylenebisacrylamide 1 part, 1 part of tetramethylammonium hydroxide, 0.5 part of tributyl phosphate, added 38 parts of deionized water, and ball milled in a roller mill for 10 hours to obtain a silicon carbide slurry for gel casting.

[0046] 2) Vacuum stirring and defoaming

[0047] Put the slurry treated in step 1) into a vacuum mixer, and vacuumize to -0.08MPa while stirring, and keep it for 20 minutes to remove the residual air bubbles in the slurry.

[0048] 3) Add initiator

[0049] Configure 2.5wt.% ammonium persulfate aqueous solution as init...

Embodiment 2

[0059] Embodiment 2: A kind of SiC ceramic thin-layer bulletproof material for laminated armor and its preparation method, the steps are as follows:

[0060] 1) Ball milling and mixing

[0061] In parts by mass, weigh 100 parts of silicon carbide micropowder with an average particle diameter of 0.45 μm, 1.5 parts of boron carbide micropowder with an average particle diameter of 3.5 μm, 22 parts of acrylamide monomer, 1.6 parts of N’N methylenebisacrylamide 1 part, 1 part of tetramethylammonium hydroxide, 0.5 part of tributyl phosphate, added 41 parts of deionized water, and ball milled in a roller mill for 12 hours to obtain a silicon carbide slurry for gel casting.

[0062] 2) Vacuum stirring and defoaming

[0063] Put the slurry treated in step 1) into a vacuum mixer, and vacuumize to -0.08MPa while stirring, and keep it for 20 minutes to remove the residual air bubbles in the slurry.

[0064] 3) Add initiator

[0065] Configure 2.5wt.% ammonium persulfate aqueous solutio...

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Abstract

The invention relates to a SiC ceramic thin-layer bullet-resistant material for a laminated armor and a preparation method of the SiC ceramic thin-layer bullet-resistant material. The SiC ceramic thin-layer bullet-resistant material is a gel-casting sheet prepared from the following raw materials: silicon carbide micro powder, boron carbide micro powder, acrylamide monomer, N'N-methylene bisacrylamide, tetramethyl ammonium hydroxide, tributyl phosphate, deionized water and ammonium persulfate. The invention also provides the preparation method of the SiC ceramic thin-layer bullet-resistant material. According to the SiC ceramic thin-layer bullet-resistant material, a silicon carbide ceramic sheet which is large in size, compact and smooth can be prepared; the SiC ceramic thin-layer bullet-resistant material is adjustable in size, good in hardness and good in fracture toughness, and is high in protective capability as a bullet-resistant material for the laminated armor.

Description

technical field [0001] The invention relates to a SiC ceramic thin-layer bulletproof material for laminated armor protection and a preparation method thereof, belonging to the technical field of armor protection materials. Background technique [0002] In modern warfare, armor material is one of the key technologies of military weapons. High-performance armor materials can not only improve the battlefield survivability of combat weapons, but also not reduce their mobility when attacking. Silicon carbide ceramics have the advantages of low density, high hardness, good impact resistance, and good ballistic performance, making it an ideal material for making high-performance bulletproof equipment. It is widely used in the production of bulletproof vests, vehicle bulletproof armor, and ship bulletproof armor. , Helicopter bulletproof armor, etc. [0003] However, the disadvantages of low toughness and poor reliability of ceramic materials limit the application of silicon carbi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/565C04B35/622
Inventor 张玉军李其松龚红宇张炎艾树鹤赵新巧赵佳星
Owner SHANDONG UNIV
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