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Preparation method of metal toughened ceramic-based composite material turbine blade

A technology of turbine blades and toughened ceramics, which is applied in the field of turbine blade manufacturing, can solve the problems of complex blade surface shape, difficult processing and high hardness, etc., and achieve the effect of enhancing toughness, improving toughness and good strength

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

However, due to the high hardness and brittleness of ceramic materials, it is difficult to process and form, and the surface shape of the blade is complex. Therefore, it is very important to solve the problem of forming ceramic blades

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A method for preparing a metal-toughened ceramic matrix composite turbine blade, comprising the following steps:

[0039] (1) Manufacture of metal toughened skeleton.

[0040] 1) First, design the metal skeleton of the desired structure through 3D modeling software (UG, Pro / E, etc.).

[0041] 2) After layering and slicing the obtained 3D model of the metal skeleton, import it into the 3D printing equipment for processing. The metal powder used is high melting point powder, specifically titanium alloy powder. The specific parameters of the 3D printing equipment are as follows: laser power 150W, laser scanning speed 50mm / s-100mm / s, scanning distance 0.05mm-0.1mm, layer thickness 0.05mm-0.1 mm.

[0042] 3) Using silane and ammonia as the silicon source and nitrogen source respectively, a layer of silicon nitride ceramic interface layer is formed on the surface of the metal skeleton by chemical vapor deposition.

[0043] (2) Manufacture the resin shell of the part throug...

Embodiment 2

[0055] A method for preparing a metal-toughened ceramic matrix composite turbine blade, comprising the following steps:

[0056] (1) Manufacture of metal toughened skeleton

[0057] 1) First, design the metal skeleton of the desired structure through 3D modeling software (UG, Pro / E, etc.).

[0058] 2) After layering and slicing the obtained 3D model of the metal skeleton, import it into the 3D printing equipment for processing. The metal powder used is high melting point powder, specifically titanium alloy powder. The specific parameters of the 3D printing equipment are as follows: laser power 200W, laser scanning speed 60mm / s-80mm / s, scanning distance 0.05mm-0.08mm, layer thickness 0.05mm-0.08 mm.

[0059] 3) Using silane and ammonia as the silicon source and nitrogen source respectively, a layer of silicon nitride ceramic interface layer is formed on the surface of the metal skeleton by chemical vapor deposition.

[0060] (2) Manufacture the resin shell of the part throug...

Embodiment 3

[0072] A method for preparing a metal-toughened ceramic matrix composite turbine blade, comprising the following steps:

[0073] (1) Manufacture of metal toughened skeleton

[0074] 1) First, design the metal skeleton of the desired structure through 3D modeling software (UG, Pro / E, etc.).

[0075] 2) After layering and slicing the obtained 3D model of the metal skeleton, import it into the 3D printing equipment for processing. The metal powder used is stainless steel. The specific parameters of the 3D printing equipment are as follows: laser power 120W, laser scanning speed 60mm / s-80mm / s, scanning distance 0.75mm-0.09mm, layer thickness 0.75mm-0.09mm.

[0076] 3) Using trichloromethylsilane as the gas source and nitrogen as the carrier gas, a layer of silicon nitride ceramic interface layer is formed on the surface of the metal skeleton by chemical vapor deposition.

[0077] (2) The resin shell is manufactured by light-curing rapid prototyping equipment, and the resin mater...

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PUM

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Abstract

The invention discloses a preparation method of a metal toughened ceramic-based composite material turbine blade. According to the preparation method, the metal 3D (three dimensional) printing technology, the stereolithography rapid molding technology, the chemical vapor deposition technology and the gel-casting molding technology are combined, a metal toughened skeleton with desired structural type is manufactured by the 3D printing technology, and the metal toughened skeleton is embedded into a ceramic product to enhance the toughness of the ceramic turbine blade. By utilizing the preparation method, the metal toughened skeleton is embedded into a ceramic product to greatly improve the toughness of the ceramic product, and a silicon carbide ceramic material prepared by transforming a precursor has high strength. Compared with the conventional metal blade, by utilizing the metal toughened ceramic-based composite material turbine blade, the quality of the blade can be greatly lightened, and the thrust-weight ratio of an engine can be greatly improved.

Description

technical field [0001] The invention belongs to the technical field of turbine blade manufacture, and relates to a method for preparing a metal-toughened ceramic-matrix composite material turbine blade. Background technique [0002] Turbine blades are one of the core components of aero-engines. Turbine blades work in the part of the aero-engine with the harshest environment, the highest temperature and the most complicated stress, and its design and manufacturing level will have a direct impact on the comprehensive performance of the aero-engine. The manufacture of aero-engine blades represents the highest level of manufacturing, and has become an important indicator of a country's manufacturing level to a certain extent. The working environment temperature of aeroengine blades is generally above 1000°C, and the higher the gas temperature in the combustion chamber, the higher the energy utilization rate and the greater the thrust generated by the engine. Due to the limitat...

Claims

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Application Information

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IPC IPC(8): C04B35/622C04B35/74C04B35/565
Inventor 鲁中良李涤尘刘涛荆慧卢秉恒
Owner XI AN JIAOTONG UNIV
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