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A ti-ti with a cylindrical staggered stack structure 2 alc/tial 3 Laminated composite material and its preparation method

A composite material and stacked structure technology, applied in the field of armor protection, can solve the problems of difficult to deal with, limited anti-penetration ability of laminated composite armor, easy to produce large cracks in blasting, etc. The effect of dissipating fracture energy

Active Publication Date: 2021-06-11
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But Ti-TiAl 3 (The density is about 3.26g / cm 3 , Vickers hardness is about 5.5GPa) laminated composite armor has limited anti-penetration ability, and it is easy to produce large cracks when it is impacted and blasted. limitations

Method used

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  • A ti-ti with a cylindrical staggered stack structure <sub>2</sub> alc/tial <sub>3</sub> Laminated composite material and its preparation method
  • A ti-ti with a cylindrical staggered stack structure <sub>2</sub> alc/tial <sub>3</sub> Laminated composite material and its preparation method
  • A ti-ti with a cylindrical staggered stack structure <sub>2</sub> alc/tial <sub>3</sub> Laminated composite material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: Ti-Ti with a cylindrical staggered stacked structure 2 AlC / TiAl 3 A method for preparing a laminated composite material, comprising the steps of:

[0026] , Preparation of uniformly mixed composite powder: Aluminum powder with an average particle size of less than 30 μm and a purity of 99.7% and Ti with an average particle size of less than 70 μm and a purity of 96% 2 AlC powder is put into a ball mill with a molar ratio of 5:1 for ball milling. Set the ball milling ratio to 10:1, the rotational speed to 300r / min, and the ball milling time to be more than 8 hours. Add alcohol as a ball milling aid during the milling process, and the milling is complete. Then put the ball mill into the dryer to dry for 2 hours, and finally sieve the dried composite powder with a RetschAS200 mechanical vibrating sieve, and the particle size of the powder is 200 mesh;

[0027] 1. Prepare TC4 foil layer: cut all TC4 foils with a thickness of 0.15mm into foil layers of 100×1...

Embodiment 2

[0036] Example 2: Ti-Ti with a cylindrical staggered stacked structure 2 AlC / TiAl 3 A method for preparing a laminated composite material, comprising the steps of:

[0037] , Preparation of uniformly mixed composite powder: Aluminum powder with an average particle size of less than 30 μm and a purity of 99.9% and Ti with an average particle size of less than 70 μm and a purity of 98.5% 2 AlC powder is put into a ball mill with a molar ratio of 20:1 for ball milling. Set the ball milling ratio to 10:1, the speed to 300r / min, and the ball milling time to be more than 8 hours. Add alcohol as a ball milling aid during the milling process, and the milling is completed. Then put the ball mill into the drying machine to dry for 2 hours, and finally use the RetschAS200 mechanical vibrating sieve to sieve the dried composite powder. The particle size of the composite powder after sieving is 300 mesh;

[0038] 1. Prepare TC4 foil layer: cut all TC4 foils with a thickness of 0.15mm...

Embodiment 3

[0047] Embodiment 3: Ti-Ti of a kind of cylindrical staggered stacking structure 2 AlC / TiAl 3 A method for preparing a laminated composite material, comprising the steps of:

[0048] , Preparation of uniformly mixed composite powder: Aluminum powder with an average particle size of less than 30 μm and a purity of 99.9% and Ti with an average particle size of less than 70 μm and a purity of 98% 2 AlC powder is put into a ball mill with a molar ratio of 10:1 for ball milling. Set the ball milling ratio to 10:1, the speed to 300r / min, and the ball milling time to be more than 8 hours. Add alcohol as a ball milling aid during the milling process, and the milling is completed. Then put the ball mill into the drying machine to dry for 2 hours, and finally use the RetschAS200 mechanical vibrating sieve to sieve the dried composite powder. The particle size of the composite powder after sieving is 350 mesh;

[0049] 1. Prepare TC4 foil layer: cut all TC4 foils with a thickness o...

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Abstract

The invention belongs to the technical field of armor protection, and specifically relates to a Ti-Ti with cylindrical staggered stacking structure. 2 AlC / TiAl 3 The laminated composite material and its preparation method solve the problems in the background technology. The laminated composite material includes TC4 foil layers and composite powder layers stacked at intervals, and the composite powder layer is made of aluminum powder and Ti 2 AlC powder composition, aluminum powder and Ti 2 The molar ratio of AlC powder is 5:1~20:1. There are several cylindrical through holes on the TC4 foil layer between the two composite powder layers, and the cylindrical through holes on two adjacent TC4 foil layers are staggered. set up. use Ti 2 AlC Reinforced Ti‑TiAl 3 Laminated composites that significantly improve Ti‑TiAl 3 The microhardness, fracture toughness, and compressive properties of laminated composite materials, and the cylindrical staggered stacking structure is conducive to the release of residual stress during preparation, making the connection between layers tighter, and can also effectively improve the toughness and energy absorption characteristics of the composite board .

Description

technical field [0001] The invention belongs to the technical field of armor protection, and relates to armor preparation materials, in particular a Ti-Ti with a cylindrical staggered stacking structure 2 AlC / TiAl 3 Laminated composite material and method for its preparation. Background technique [0002] In recent years, researchers have developed new intermetallic compound laminated composites through the study of the microstructure and toughening mechanism of natural biomaterial shells. Among them, the Ti-Al intermetallic compound laminated composite material has been widely used in the fields of electronic device industry, aerospace, armor protection system and so on because of its high specific strength, high specific stiffness, high specific modulus, high energy absorption and other excellent properties. applications, such as commonly used Ti-TiAl 3 laminated composite materials. But Ti-TiAl 3 (The density is about 3.26g / cm 3 , Vickers hardness is about 5.5GPa) l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F7/04B22F3/14B22F3/23
CPCB22F3/14B22F3/23B22F7/04
Inventor 原梅妮姚宇航韩方洲魏泽源郑丽荣
Owner ZHONGBEI UNIV
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