Preparation method for ceramic particle reinforced metallic matrix space lattice composite material

A technology of ceramic particles and metal matrix, which is applied in the field of composite materials, can solve the problems of ceramic skeleton fracture and stress concentration, and achieve the effects of preventing crack expansion, improving service life, and being easy to infiltrate

Active Publication Date: 2018-12-18
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When this method prepares the ceramic skeleton, the intersection of the ceramic skeleton is likely to cause stress concentration, and the ceramic skeleton is easy to break from the stress concentration of the skeleton.

Method used

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  • Preparation method for ceramic particle reinforced metallic matrix space lattice composite material
  • Preparation method for ceramic particle reinforced metallic matrix space lattice composite material
  • Preparation method for ceramic particle reinforced metallic matrix space lattice composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1: Preparation of high manganese steel matrix composite material.

[0033] (1) Machining is used to manufacture a metal mold including a plurality of spherical cavities arranged in a plane lattice, wherein the diameter of the spherical cavity is 5 mm, and the distance between adjacent spherical cavities is 1 mm; the mold can be divided into upper and lower parts, There is a metal mesh between the upper and lower parts (such as figure 1 shown);

[0034] (2) Mix 60-mesh ZTA (zirconia toughened alumina) ceramic particles and water glass to make a slurry. The amount of water glass added is 3% of the mass of the ZTA ceramic particles; pour it into a metal mold, compact it, and then Put it into a heating furnace and heat it to 450°C for 0.5h, then heat it to 900°C for 1h to ensure a certain strength, and make a single-layer prefabricated body. The ceramic balls in the single-layer prefabricated body are arranged in a plane lattice (such as figure 2 shown);

[0035...

Embodiment 2

[0037] Example 2: Preparation of an aluminum alloy matrix composite material.

[0038] (1) Machining is used to manufacture a metal mold including a plurality of spherical cavities arranged in a plane lattice, wherein the diameter of the spherical cavity is 3 mm, and the distance between adjacent spherical cavities is 3 mm; the mold can be divided into upper and lower parts, There is a metal mesh between the upper and lower parts;

[0039] (2) Put 250-mesh TiC ceramic particles and 200-mesh WC ceramic particles into a ball mill with a mass ratio of 3:2 for 0.5 hours to make them fully mixed, and then add silica sol. The amount of silica sol added is the total mass of TiC and WC 10% of the slurry, continue to ball mill for 0.5h to make a slurry; pour it into a metal mold, compact it, and then put it into a heating furnace and sinter at 800°C for 1.5h to ensure a certain strength, and make a single-layer prefabricated body, single-layer The ceramic balls in the preform are arra...

Embodiment 3

[0042] Example 3: Preparation of copper alloy matrix composite material.

[0043] (1) Machining is used to manufacture a metal mold including a plurality of spherical cavities arranged in a plane lattice, wherein the diameter of the spherical cavity is 10 mm, and the distance between adjacent spherical cavities is 5 mm; the mold can be divided into upper and lower parts, There is a metal mesh between the upper and lower parts;

[0044] (2) SiC 100 mesh, TiN 150 mesh and ZrO 80 mesh 2 Put the mixture into a ball mill to make it fully mixed evenly, and then add aluminum metaphosphate, the amount of aluminum metaphosphate added is SiC, TiN and ZrO 28% of the total mass, continue ball milling to make slurry; pour it into a metal mold, compact it, then heat it to 400°C, keep it warm for 1h, continue heating to 600°C, keep it warm for 1h, and after cooling with the furnace, make a single-layer prefabrication body, the ceramic balls in the single-layer prefabricated body are arrang...

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Abstract

The invention discloses a preparation method for a ceramic particle reinforced metallic matrix space lattice composite material. The preparation method comprises the following steps that (1) a metal mold comprising a plurality of globular cavities arranged in a plane lattice manner is manufactured, the mold can be divided into upper and lower parts, and a metal net is arranged between the upper and lower parts; (2) ceramic particles and a binder are mixed to prepare slurry, the metal mold is filled with the slurry, compaction and high-temperature sintering are carried out, and single-layer prefabricated bodies are manufactured; (3) metal nets are placed between the single-layer prefabricated bodies for stacking and arranging layer by layer, a binder is added for bonding, high-temperature sintering is carried out, and three-dimensional prefabricated bodies are manufactured; and (4) the three-dimensional prefabricated bodies are placed into a sand mould prepared in advance, pouring of metallic matrix melt is carried out, and infiltration is carried out to prepare the ceramic particle reinforced metallic matrix space lattice composite material. By means of the preparing method, the problem that a micron-order ceramic particle reinforced steel-based composite material is difficult to achieve ordinary pressure permeation and insufficient in toughness is solved.

Description

technical field [0001] The invention relates to a method for preparing a ceramic particle-reinforced metal matrix space lattice composite material, which belongs to the technical field of composite materials. Background technique [0002] Metal matrix composites reinforced with uniform dispersion of ceramic particles have excellent wear resistance, but their plasticity and toughness are too poor. Under high impact load conditions, composite materials are easy to fall off and break, resulting in failure. In addition, ordinary uniform ceramic reinforced metal matrix composites are difficult to infiltrate under normal pressure, the infiltration effect is poor, and it is difficult to have good performance. [0003] CN101899585A Mix carbide ceramic particles or hard alloy broken particles with metal, and sinter them into columnar, strip, block, and honeycomb prefabricated bodies at high temperature, arrange them regularly on the end face of the mold, and then inject metal into th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/10
CPCC22C1/1015C22C1/1036C22C1/1021
Inventor 卢德宏唐露冯家玮何光宇
Owner KUNMING UNIV OF SCI & TECH
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