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Preparation method of fiber-toughened SiC ceramic-based composite material three-dimensional member

A technology of three-dimensional components and composite materials, which is applied in the field of preparation of complex components, can solve problems such as limited operating temperature, high density, and restriction of engine performance, and achieve the effects of improving wettability, low density, improving thrust-to-weight ratio and high-temperature performance

Inactive Publication Date: 2013-05-22
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the nickel-based superalloy used in hollow turbine blades has a limited service temperature and high density, which restricts the further improvement of engine performance

Method used

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  • Preparation method of fiber-toughened SiC ceramic-based composite material three-dimensional member
  • Preparation method of fiber-toughened SiC ceramic-based composite material three-dimensional member
  • Preparation method of fiber-toughened SiC ceramic-based composite material three-dimensional member

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] see figure 1 , the preparation method of fiber toughened SiC ceramic matrix composite material hollow turbine blade, comprises the following steps:

[0046] 1. Hollow blade negative mold design

[0047] 1.1 Use UG software to build a hollow blade model, such as figure 2 As shown, 1 is the cooling channel; 2 is the special-shaped air film hole; 3 is the edge plate. Then convert the 3D model into STL format data and save it.

[0048] 1.2 Use the layered software Magics to process the 3D model layered and design the support, and import the processed data into the manufacturing system of the light-curing rapid prototyping machine.

[0049] 1.3 Using light curing rapid prototyping technology to manufacture the negative mold of the hollow blade, such as image 3 As shown, 10 is the gate; 20 is the core; 30 is the shell.

[0050] 2. Add pore forming agent

[0051] Mix liquid phenolic resin (type 2130) and pore-forming agent ethylene glycol according to the mass ratio of 5...

Embodiment 2

[0076] see figure 1 , the preparation method of fiber toughened SiC ceramic matrix composite material hollow turbine blade, comprises the following steps:

[0077] 1. Hollow blade negative mold design

[0078] 1.1 UG software is used to construct the hollow blade model, and then the three-dimensional model is converted into STL format data for storage.

[0079] 1.2 Use the layered software Magics to process the 3D model layered and design the support, and import the processed data into the manufacturing system of the light-curing rapid prototyping machine.

[0080] 1.3 Using light-curing rapid prototyping technology to manufacture the negative mold of the hollow blade.

[0081] 2. Add pore forming agent

[0082] Mix the liquid phenolic resin (type 2130) and the pore-forming agent ethylene glycol according to the mass ratio of 50:70~85 and mix evenly. By changing the amount of pore-forming agent added, the microstructure (porosity, pore size distribution, and pore wall thic...

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Abstract

The invention discloses a preparation method of a fiber-toughened SiC ceramic-based composite material three-dimensional member. The method comprises the following steps: adding fiber to liquid-state high char yield resin, pouring to a photo-curing mold, performing polymerization and curing on the resin, then manufacturing a controllable porous carbon preform through a thermolysis method, then performing high-temperature siliconizing, and preparing a SiC ceramic matrix by in-situ reaction of silicon on a carbon support to realize the manufacturing of the SiC ceramic-based composite material three-dimensional member. The method has the characteristics of near net shape formed variable cross-section complex structure, no crack defects, short production period, low cost and the like, and can be applied to development and manufacturing of blades of engines and other aerospace high-temperature-resistant complex structure parts.

Description

technical field [0001] The invention belongs to the technical field of preparation of complex components, and relates to a method for preparing a three-dimensional component of a fiber-reinforced SiC ceramic matrix composite material. Background technique [0002] Hollow turbine blades are the core functional components of vehicles such as aircraft, ships, and automobiles. To a certain extent, they have become an important indicator of a country's comprehensive manufacturing capabilities. At present, the nickel-based superalloy used in hollow turbine blades has a limited service temperature and high density, which restricts the further improvement of engine performance. Contents of the invention [0003] The problem to be solved by the present invention is to provide a method for preparing a fiber-reinforced SiC ceramic matrix composite three-dimensional component. On the basis of complex structural light-cured rapid prototyping, fiber-reinforced toughening is prepared by ...

Claims

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Application Information

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IPC IPC(8): C04B35/80C04B35/622
Inventor 鲁中良李涤尘陆峰曹继伟卢秉恒
Owner XI AN JIAOTONG UNIV
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