Preparation method of aluminum-based boron carbide neutron absorption composite material

A technology of absorbing composite materials and aluminum-based boron carbide, which is applied in the field of non-ferrous metal reinforcement and powder metallurgy, can solve the problems of poor toughness, difficulty, and high brittleness of boron carbide, and achieve reasonable proportioning, detailed and accurate data, and stable physical and chemical properties Effect

Inactive Publication Date: 2012-03-28
TAIYUAN UNIV OF TECH +1
View PDF2 Cites 35 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aluminum is an excellent non-ferrous metal, and boron carbide is a ceramic material; the relative density of boron carbide is 2.52g/cm 3 , with a melting point of 2450°C. Due to its high hardness, low density, and high melting point, it is often used as an abrasive material and has a high neutron capture cross section. Therefore, it can be used as a nuclear shielding material for nuclear

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
  • Preparation method of aluminum-based boron carbide neutron absorption composite material
  • Preparation method of aluminum-based boron carbide neutron absorption composite material
  • Preparation method of aluminum-based boron carbide neutron absorption composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0071] The present invention will be further described below in conjunction with accompanying drawing:

[0072] figure 1 As shown, it is the state diagram of the cold pressing of the mixed fine powder billet, and the positions of each part must be correct, and the operations should be performed in sequence.

[0073] The cold pressing of mixed fine powder is carried out on a manual cold press machine, which is vertical, with an upper pressing head 3 and an upper pressing block 4 on the upper part, and the up and down movement is controlled by the control handle 5 on the side, and the lower part is equipped with There is a lower block 2, on which the open-close graphite mold 6 is placed vertically, the graphite mold 6 is assembled and formed by an open-close frame 9, graphite paper 8 is pasted on the inner periphery of the graphite mold 6, graphite cushion blocks 18 are placed on the upper and lower parts, Inside the graphite paper 8 is a mixed blank 7, and under the pressure o...

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

No PUM Login to view more

Abstract

The invention relates to a preparation method of an aluminum-based boron carbide neutron absorption composite material. The preparation method comprises the following steps of: according to the characteristics of a neutron absorption composite material, grinding, blanking, cold-pressing, baking, hot-pressing raw materials of aluminum powder, silica powder, titanium powder and boron carbide powderby using a powder metallurgic method to prepare the aluminum-based boron carbide neutron absorption composite material in a vacuum state. The tempering quantitative treatment is carried out on the aluminum-based boron carbide neutron absorption composite material so that chemical and physical properties of the aluminum-based boron carbide neutron absorption composite material are more stable. Thepreparation method has the advantages of advanced and reasonable process, continuity and compact, detailed and accurate data, reasonable material proportioning, stable chemical and physical properties and mechanical property and favorable product purity as high as 99.5% and is ideal. Various neutron absorption parts can be prepared by using the aluminum-based boron carbide neutron absorption composite material.

Description

technical field [0001] The invention relates to a method for preparing an aluminum-based boron carbide neutron-absorbing composite material, which belongs to the technical field of nonferrous metal reinforcement and powder metallurgy. Background technique [0002] With the development of science and technology, in aviation, aerospace, electronics, automobiles, communications, military industry, nuclear power plants and other technical fields, the requirements for materials are getting higher and higher. Traditional single-structure materials have been difficult to meet the needs of light weight and high strength. Materials The compounding of metal matrix composites has become an important direction of material development. Due to the characteristics of high specific strength, high specific modulus, excellent wear resistance, dimensional stability, good fatigue resistance, and small thermal expansion coefficient, metal matrix composites have attracted attention. wide attentio...

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): C22C1/05C22C21/02C22C32/00
Inventor 王文先张鹏吴岩顾国兴陈焕明王保东
Owner TAIYUAN UNIV OF 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