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A kind of carbon/silicon carbide composite material non-destructive testing standard sample preparation method

A composite material and non-destructive testing technology, which is applied in the preparation of test samples, etc., can solve the problems of easy carbonization of carbon slag and inapplicability of porcelain-based composite materials, and achieve the effects of good stability, material reduction, and easy realization

Active Publication Date: 2010-08-04
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

The disadvantage is that the plastic film is easy to carbonize and leave carbon residue after pyrolysis.
Porcelain matrix composites are obviously not suitable

Method used

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  • A kind of carbon/silicon carbide composite material non-destructive testing standard sample preparation method
  • A kind of carbon/silicon carbide composite material non-destructive testing standard sample preparation method
  • A kind of carbon/silicon carbide composite material non-destructive testing standard sample preparation method

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Abstract

The invention relates to a method for preparing a carbon / silicon carbide composite material non-destructive testing standard sample. Said preparation method includes preparing C fiber prefabricated body, making artificial defects of graphite paper, placing artificial defects, chemical vapor deposition (CVI) impregnating pyrolytic C, CVI impregnating SiC matrix and the like. The preparation method of the invention is simple, can prepare a non-destructive testing standard sample that is as dense as a non-defective material, has good material integrity, almost no volume change in the preparation process, and has good shape stability of the prepared material and defects. The C / SiC ceramic matrix composite material non-destructive testing standard sample prepared by the method of the invention is mainly used for type identification, damage degree judgment and non-destructive testing equipment calibration of the material defects in the fields of aviation, aerospace and weapons.

Description

A kind of carbon / silicon carbide composite non-destructive testing standard sample preparation method technical field The present invention relates to a kind of carbon / silicon carbide composite material non-destructive testing standard sample preparation method, particularly relate to a kind of continuous Preparation method of non-destructive testing standard samples for carbon fiber reinforced silicon carbide laminates. Background technique The manufacturing cost of advanced ceramic matrix composite (CMC) is usually very high, and the production cycle is long, and the use environment has a great influence on its quality. How to effectively improve its reliability is a very urgent problem. Use appropriate non-destructive evaluation methods for possible Effective detection of existing defects, guarantee of finished product quality and service life performance, and improvement of product reliability will play a very important role key role. [0003] C / SiC composite ma...

Claims

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Application Information

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IPC IPC(8): G01N1/28
Inventor 徐永东成来飞张立同梅辉赵东林王东涂建勇陈旭付志强
Owner NORTHWESTERN POLYTECHNICAL UNIV
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