Method for uniformly introducing ultrahigh-temperature ceramic component to braided three-dimensional carbon fibers with high content

A carbon fiber braided, ultra-high temperature ceramic technology, applied in the field of ultra-high temperature structural materials, can solve the problems of long process cycle, uneven distribution of ultra-high temperature ceramics, low component content, etc. The effect of efficiency

Active Publication Date: 2018-06-29
HARBIN INST OF TECH
View PDF3 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problems of uneven distribution of ultra-high-temperature ceramics, low component content and long process cycle in the current method of introducing ultra-high-temperature ceramics

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
  • Method for uniformly introducing ultrahigh-temperature ceramic component to braided three-dimensional carbon fibers with high content
  • Method for uniformly introducing ultrahigh-temperature ceramic component to braided three-dimensional carbon fibers with high content
  • Method for uniformly introducing ultrahigh-temperature ceramic component to braided three-dimensional carbon fibers with high content

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] Specific implementation mode 1: The method for uniformly introducing a high content of ultra-high temperature ceramic components into a three-dimensional carbon fiber braid in this embodiment is implemented in the following steps:

[0019] 1. Mix the ultra-high temperature ceramic powder with absolute ethanol and polyacrylic acid (PAA) into a ball milling tank. The solid content of the ultra-high temperature ceramic powder is 35~45vol%, and polyacrylic acid (PAA) accounts for the ultra-high temperature ceramic powder. 1% to 2% of the body mass, then place the ball milling jar in a planetary ball mill for ball milling to obtain ultra-high temperature ceramic slurry;

[0020] 2. Inject the ultra-high-temperature ceramic slurry into the carbon fiber braid through the grouting device. When resistance occurs in the injection, the carbon fiber braid is transferred to the reactor containing the ultra-high-temperature ceramic slurry, and then ultrasonic vibration is applied, and then...

Example Embodiment

[0022] Specific embodiment two: this embodiment is different from specific embodiment one in that the ultra-high temperature ceramic powder described in step one is zirconium carbide powder, hafnium carbide powder, silicon carbide powder, tantalum carbide powder, boride One or more mixtures of zirconium powder, hafnium boride powder, and hafnium nitride powder.

Example Embodiment

[0023] Specific embodiment three: This embodiment is different from specific embodiment one or two in that in step one, the rotation speed of the ball mill is controlled to be 250-300 r / min, and the ball milling time is 8-10 h.

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
The average particle sizeaaaaaaaaaa
The average particle sizeaaaaaaaaaa
Login to view more

Abstract

A method for uniformly introducing an ultrahigh-temperature ceramic component to braided three-dimensional carbon fibers with high content. The invention belongs to the field of ultrahigh temperaturestructural materials and solves the problems of non-uniform distribution and low content of the ultrahigh-temperature ceramic component in the similar methods in the prior art. The method includes following steps: 1) mixing ultrahigh-temperature ceramic powder with anhydrous ethanol and polyacrylic acid to obtain ultrahigh-temperature ceramic slurry; 2) injecting the ceramic slurry into interior of the braided carbon fiber via an injection apparatus and performing ultrasonic vibration, and continuously injecting the slurry to complete vibration-assisted slurry injection process; 3) adding theultrahigh-temperature ceramic slurry and a green body to a reactor, performing vacuum impregnation and then ultrasonic vibration to complete vibration-assisted ultrasonic vibration. Through compositeprocess of the vibration-assisted slurry injection process and the vibration-assisted ultrasonic vibration, the ceramic slurry can be completely and uniformly dispersed in carbon fiber frameworks under effect of the ultrasonic high-frequency vibration. The product is high in ceramic content and is short in process period.

Description

technical field [0001] The invention belongs to the field of ultra-high temperature structural materials, and in particular relates to a method for uniformly introducing a high content of ceramics into a three-dimensional carbon fiber braided body. Background technique [0002] In recent years, the demand for high-temperature structural materials that can effectively serve for a long time in an ultra-high temperature environment has become increasingly urgent in the aerospace field. Throughout the current high-temperature structural material system, ultra-high-temperature ceramic materials (mainly including refractory borides, carbides and nitrides of transition metals, such as ZrB 2 , HfB 2 , TaC, HfC, ZrC, HfN, etc., all of which have melting points above 3000°C) have received extensive attention and research due to their excellent high-temperature comprehensive properties. However, as a typical brittle material, ultra-high temperature ceramic materials have low damage t...

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): C04B35/80C04B35/626C04B35/634C04B35/622C04B35/56C04B35/58
CPCC04B35/806C04B35/5622C04B35/58078C04B35/622C04B35/6261C04B35/63424C04B2235/3826C04B2235/5248C04B2235/5252C04B2235/616
Inventor 程源胡平马晨方成张东洋张幸红
Owner HARBIN INST 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