Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for preparing Ti3SiC2/SiC/Al composite material

A technology of composite materials and raw materials, applied in the field of preparation of Ti3SiC2/SiC/Al composite materials, to achieve the effect of improving strength and toughness, simple steps, and high energy consumption

Inactive Publication Date: 2017-05-10
HEBEI UNIV OF TECH
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

No one has yet compared Al, Ti 3 SiC 2 Simultaneously introduce SiC ceramics to prepare composite materials

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 preparing Ti3SiC2/SiC/Al composite material
  • Method for preparing Ti3SiC2/SiC/Al composite material
  • Method for preparing Ti3SiC2/SiC/Al composite material

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0021] Ti of the present invention 3 SiC 2 / SiC / Al composite material preparation method, the method comprises the steps:

[0022] 1) Preparation of Al-based alloy: the mass percentage of each element of Al-based alloy is: Al, 60-80wt%; Ti, 5-20wt%; Cu, 0-10wt%; Si, 5-25wt%;

[0023] Weigh the corresponding raw materials according to the mass percentage of the above elements, place the Al ingot in a graphite crucible, and heat it until it is completely melted, then add titanium, silicon, and copper into the molten aluminum, and heat up to 800-1100 ℃, keep warm, and stir until completely dissolved, that is, the Al-based alloy liquid in molten state is obtained;

[0024] 2) Treatment of SiC ceramics: Cut the SiC ceramic raw materials into the required size with a diamond cutter; then grind the surface of the SiC ceramics with a diamond grinding disc until the surface is smooth and free of oxide layers; then use acetone and absolute ethanol in sequence Ultrasonic cleaning, and...

Embodiment 1

[0032] This embodiment Ti 3 SiC 2 The preparation method of / SiC / Al composite material is as follows:

[0033] 1) Preparation of Al-based alloy: the mass percentage of each element of the Al-based alloy is composed of: Al, 70wt%; Ti, 15wt%; Cu, 5wt%; Si, 10wt%;

[0034] Weigh the corresponding raw materials according to the mass percentage of the above-mentioned elements. The raw materials are Al ingot, Ti ingot, Cu plate, and Si block respectively. Put 150g of Al ingot in a graphite crucible and heat it to 700°C in a box-type resistance furnace until it is completely melted. , then add 32gTi, 10.7g Cu, and 21.4g Si into the molten aluminum, raise the temperature to 900°C, the heating rate is 15°C / min, keep at this temperature for 60min, stir until completely dissolved, That is, the Al-based alloy liquid in a molten state is obtained;

[0035] Take a small amount of the molten Al-based alloy liquid and cool it into an ingot, cut 3mm×3mm×3mm alloy particles, and test the wet...

Embodiment 2

[0044] This embodiment Ti 3 SiC 2 The specific steps of the preparation method of the / SiC / Al composite material are the same as in Example 1, except that the impregnation time of this example is 6 hours.

[0045] According to the test and analysis process of Example 1, the composite material prepared in this embodiment was analyzed and tested, and the specific results were: after the three-point bending strength test, the average bending strength of the composite material prepared in this embodiment was 413MPa, which was higher than that of the original SiC Ceramic (179MPa) increased by 234Mpa.

[0046] The surface XRD test results are as follows Figure 5 As shown, the outer layer (interface) of the composite material of this embodiment has a large amount of Ti 3 SiC 2 generated without TiC. The impregnation time is 6h, and Ti 3 SiC 2 / SiC / Al composite material, and Al can completely penetrate into SiC ceramics, due to the prolongation of impregnation time, Ti 3 SiC ...

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
Average bending strengthaaaaaaaaaa
Average bending strengthaaaaaaaaaa
Average bending strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for preparing a Ti3SiC2 / SiC / Al composite material. The method includes the following steps of 1) Al-based alloy preparing, wherein Al-based alloy is prepared from, by mass, 60 wt%-80 wt% of Al, 5 wt%-20 wt% of Ti, 0 wt%-10 wt% of Cu and 5 wt%-25 wt% of Si, a Al ingot is put into a graphite crucible and heated till the Al ingot is completely molten, then threes substances of titanium, silicon and copper are added into the molten aluminum, the temperature is increased to be 800 DEG C to 1,100 DEG C and kept, the product is stirred to be completely dissolved, and molten-state Al-based alloy liquid is obtained; 2) SiC ceramic treating; 3) infiltrating technology conducting, wherein SiC ceramic obtained after treating in the step 2) is soaked into the molten-state Al-based alloy liquid prepared in the step 1), the infiltrating temperature is 800 DEG C to 1,100 DEG C, the infiltrating time is 1 h to 10 h, a sample is taken out and cooled to be at the room temperature, and the Ti3SiC2 / SiC / Al composite material is obtained. By means of the method, the toughness of the SiC-ceramic-based composite material can be remarkably improved, the defect that the Ti3SiC2 / SiC / Al composite material only can be prepared under the harsh technical conditions such as the high temperature and the high vacuum in the prior art is overcome, and the production cost is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of ceramic matrix composite materials, specifically a Ti 3 SiC 2 / SiC / Al composite material preparation method. Background technique [0002] Ti 3 SiC 2 It is a ternary ceramic that combines the advantages of high melting point, high chemical stability, corrosion resistance, oxidation resistance of ceramics, and thermal conductivity, electrical conductivity, and easy processing of metals. With the Ti 3 SiC 2 attention to Ti 3 SiC 2 There are many studies on the preparation of powder and block, and Ti 3 SiC 2 / SiC composite material is relatively rare. So far, Ti 3 SiC 2 The preparation methods of / SiC composite materials mainly focus on two methods: powder hot pressing sintering of Ti-C-Si system and liquid silicon impregnation. Yin Hongfeng et al. (Yin Hongfeng, Fan Qiang, Ren Yun, etc. SiC content has an effect on Ti 3 SiC 2 / SiC composite material properties [J]. Journal of Aeronautical Ma...

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): C04B41/88C04B41/87
CPCC04B41/009C04B41/5057C04B41/5155C04B41/87C04B41/88C04B35/565C04B41/4523C04B41/4556
Inventor 马瑞娜王威曹晓明杜安范永哲赵雪
Owner HEBEI UNIV OF TECH
Features
  • Generate Ideas
  • 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