Supercharge Your Innovation With Domain-Expert AI Agents!

Preparation method for directional hole ceramic enhanced metal matrix composite material

A composite material and directional hole technology, which is applied in the field of composite material preparation, can solve the problems of low compressive strength and bending strength, and achieve the effect of avoiding agglomeration and high strength

Active Publication Date: 2013-11-13
HARBIN INST OF TECH
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem of low compressive strength and bending strength of the existing particle-reinforced composite material, the present invention provides a preparation method of oriented-pore ceramic reinforced metal matrix composite material

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 for directional hole ceramic enhanced metal matrix composite material
  • Preparation method for directional hole ceramic enhanced metal matrix composite material
  • Preparation method for directional hole ceramic enhanced metal matrix composite material

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0022] Specific implementation mode 1: The preparation method of the directional hole ceramic reinforced metal matrix composite material in this implementation mode is carried out according to the following steps:

[0023] 1. Mix the raw materials and deionized water according to the volume ratio of 3:2 to obtain a mixture. The raw materials are SiC powder and Y 2 o 3 Composition, the mass content of SiC powder in the raw material is 95%, Y in the raw material 2 o 3 The mass content of SiC powder, dispersant, binder and defoamer is 1:0.005:0.01:0.001, and then the dispersant, binder and defoamer are added to the mixture , and then add silicon nitride balls for ball milling for 24 hours to obtain a slurry;

[0024] 2. Degas the slurry for 10 minutes, then pour the degassed slurry into a mold to form a sample, keep the sample at 0°C-10°C for 5-120 minutes, and then heat it at a temperature of -10-40°C 1. Freeze-drying for 1-4 days under the condition of a pressure of 1-100Pa...

specific Embodiment approach 2

[0027] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the dispersant described in step 1 is tetramethylammonium hydroxide or ammonium citrate. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0028] Embodiment 3: This embodiment is different from Embodiment 1 in that the binder described in step 1 is polyvinyl alcohol, polyvinyl butyral or gelatin. Others are the same as in the first embodiment.

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
bending strengthaaaaaaaaaa
tensile strengthaaaaaaaaaa
flexural strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method for a directional hole ceramic enhanced metal matrix composite material, relates to the preparation method for the composite material and aims to solve the technical problems of low compression strength and bending strength of the conventional particle enhanced composite material. The method comprises the following steps of: 1, preparing slurry; 2, preparing porous a ceramic green body; 3, preparing a preform; and 4, immersing aluminum alloy in the perform to obtain the directional hole ceramic enhanced metal matrix composite material. The prepared directional hole ceramic enhanced metal matrix composite material is high in intensity; and after aging, the bending strength of the material is more than 700 MPa, the tensile strength is more than 400 MPa, the heat conductivity is more than 120 W.m<-1>.K<-1>, and the bending strength of the prepared preform is more than 3 MPa.

Description

technical field [0001] The invention relates to a preparation method of a composite material. Background technique [0002] Metal matrix composites can be divided into four categories according to the form of reinforcement materials (Wang Rongguo, Wu Weili, Gu Wanli. Introduction to Composite Materials. Harbin Institute of Technology Press. 1999: 125-126): particle-reinforced metal matrix composites, lamellar Reinforced composite materials, fiber reinforced composite materials and three-dimensional continuous network ceramic reinforced metal matrix composite materials. [0003] Particle-reinforced composite materials, especially the reinforcement particles are easy to agglomerate, it is difficult to prepare low reinforcement volume fraction (<10vol%) and high reinforcement volume fraction (>80vol%), and the particle-reinforced composite material is resistant to compression The strength and bending strength are low, which limits its application in structural materials;...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/08
Inventor 叶枫刘仕超刘强张标
Owner HARBIN INST OF TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com