Aluminum-based material with integrated radiation and neutron shielding effect

A technology of comprehensive shielding and aluminum-based materials, applied in the field of aluminum-based shielding materials and their preparation, can solve problems such as poor mechanical strength and heat resistance, low boron content, and defects in radiation shielding effects, and achieve the effect of improving shielding performance

Inactive Publication Date: 2011-12-07
KUNMING UNIV OF SCI & TECH +1
View PDF2 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the lead-boron polyethylene composite material, since polyethylene is a polymer material, the softening temperature is 130°C, resulting in poor mechanical strength and heat resistance of the lead-boron polyethylene composite material, its tensile strength is about 10MPa, and the Brinell hardness is only 3 to 4, seriously restricting its application; B 4 C/Pb composite material is the combination of Pb-X (X=Sb, Sn, Ag, Au, Cr, etc.) alloy and B 4 The C reinforcement is compounded by powder metallurgy or melting and casting molding. It can be used as a material to absorb neutrons and block X and γ rays, but its strength and plasticity are low. Its tensile strength is 48.2MPa and Brinell hardness is 22.13, resulting in It cannot be used alone as a structural material, and it is difficult to prepare large-scale composite materials; B 4 C/Al composites due to B 4 C ceramics are the carrier, such composite materials have poor plasticity, and there are B 4 The u

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Aluminum-based material with integrated radiation and neutron shielding effect
  • Aluminum-based material with integrated radiation and neutron shielding effect
  • Aluminum-based material with integrated radiation and neutron shielding effect

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1: 48% Al, 33.6% Pb and 14.4% Mg were added in a melting furnace, and 4.0% boron was added. At this time, the mass percentage of the AlMgPb aluminum-based alloy in the entire shielding material is 96%; Stir for 2 to 5 minutes to fully react and form each component. The high-strength AlMgPb-boron aluminum-based ray / neutron shielding material is prepared by casting. The test results are as follows:

[0015] ①Microstructure characteristics: After surface treatment of the sample (grinding→polishing→corrosion), the scanning electron microscope (model XL30ESEM-TMP) was used to observe and analyze the microstructure characteristics of the sample, such as figure 1 shown. The test shows that the distribution of the alloy structure is uniform, and the interfacial bonding of each phase is in good condition.

[0016] ②Tensile strength test: Prepare the test sample bar and carry out the tensile strength test on the tensile mechanical testing machine. The test results sho...

Embodiment 2

[0019] Example 2: 50.6% of Al, 27.6% of Mg and 13.8% of Pb are added in a melting furnace, and then 8% of borides are added. At this time, the mass percentage of AlMgPb aluminum-based alloy in the entire shielding material is 92%; the boride is 8%; the mass percentage of each component in the AlMgPb alloy is: Mg 30%, Pb 15%, Al 55%. Stir for 2 to 5 minutes to fully react and form each component. Casting is prepared into a high-strength AlMgPb-boride aluminum-based ray / neutron shielding material. The test results are as follows:

[0020] ①Microstructure characteristics: After surface treatment of the sample (grinding→polishing→corrosion), the scanning electron microscope (model XL30ESEM-TMP) was used to observe and analyze the microstructure characteristics of the sample, such as figure 2 shown. The test shows that the distribution of the alloy structure is uniform, and the interfacial bonding of each phase is in good condition.

[0021] ②Tensile strength test: Prepare the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Tensile strengthaaaaaaaaaa
Tensile strengthaaaaaaaaaa
Login to view more

Abstract

The invention belongs to an aluminum-based shielding material with comprehensive shielding effects of X, gamma rays and neutrons, in particular a shielding material with high strength, light weight and multiple shielding effects. The composition of the shielding material is: the matrix is ​​aluminum-based alloy AlMgPb (15%-30% Mg, 15%-35% Pb, the balance is aluminum, mass percentage), and boron or boride is a neutron absorber. The component distribution ratio of the shielding material is as follows: the mass percentage of aluminum-based alloy is between 90% and 99.7%, and the mass percentage of boron or boride is between 0.3% and 10%. Compared with traditional aluminum-based materials, Pb/B4C and lead-boron-polyethylene composite materials, the aluminum-based shielding material containing boron or borides of the present invention not only has excellent comprehensive shielding effects for X, γ-rays and neutrons, but also has The tensile strength and Brinell hardness are much higher than the existing Pb-B polyethylene and Pb-B4C composite shielding materials.

Description

technical field [0001] The invention belongs to an aluminum-based shielding material with comprehensive shielding effects of X, gamma rays and neutrons and a preparation method thereof, in particular to a shielding material with light weight and multiple shielding effects and a preparation method thereof. Background technique [0002] As the global warming effect is becoming more and more serious, the application of nuclear energy as a clean and clean energy source is getting more and more attention. Because nuclear reactors will release a large amount of radiation and neutron radiation harmful to the human body, shielding materials should be used to shield nuclear reactors. Therefore, the development of comprehensive shielding materials with multiple radiation and neutrons has always been an important issue in the field of nuclear safety. [0003] The existing X, γ-ray and neutron comprehensive shielding materials mainly include lead-boron polyethylene, B 4 C / Pb composite ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C22C32/00C22C21/00C22C21/06G21F1/08
Inventor 孙勇段永华彭明军何建洪
Owner KUNMING UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap