Application of Micro-Focus CT on Inspection of Ceramic Matrix Composites

XIONG Ying; LIU Haiqiang; DU Benli; WANG Shupeng; FANG Jianming

doi:10.16080/j.issn1671–833x.2018.19.058

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Application of Micro-Focus CT on Inspection of Ceramic Matrix Composites

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- Application of Micro-Focus CT on Inspection of Ceramic Matrix Composites
- Aeronautical Manufacturing Technology Vol. 61, Issue 19, Pages: 58-63(2018)
- 作者机构：
  
  中国航发沈阳黎明航空发动机有限责任公司,沈阳,110043
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671–833x.2018.19.058
  CLC：
- Published：2018
- 稿件说明：
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熊瑛，刘海强，杜本莉，王树鹏，方建明. 微焦点CT在陶瓷基复合材料上的检测应用[J]. 航空制造技术, 2018, 61(19): 58-63.

XIONG Ying, LIU Haiqiang, DU Benli, WANG Shupeng, FANG Jianming. Application of Micro-Focus CT on Inspection of Ceramic Matrix Composites. Aeronautical Manufacturing Technology, 2018, 61(19): 58-63.
熊瑛，刘海强，杜本莉，王树鹏，方建明. 微焦点CT在陶瓷基复合材料上的检测应用[J]. 航空制造技术, 2018, 61(19): 58-63. DOI： 10.16080/j.issn1671–833x.2018.19.058.

XIONG Ying, LIU Haiqiang, DU Benli, WANG Shupeng, FANG Jianming. Application of Micro-Focus CT on Inspection of Ceramic Matrix Composites. Aeronautical Manufacturing Technology, 2018, 61(19): 58-63. DOI： 10.16080/j.issn1671–833x.2018.19.058.

摘要

陶瓷基复合材料具有耐高温、耐腐蚀、高比强度等诸多优点，在航空航天领域的应用越来越广泛。受制备工艺和原材料等原因限制，产品会产生各种缺陷。能够进行缺陷检测的无损检测方法有超声波、CT、红外热成像、X 射线等。本文基于微焦点CT 系统，开展调节片类薄壁陶瓷基复合材料的检测试验。确定微焦点CT 具备整体零件亚毫米级孔检测能力，且测量结果更准确。微焦点CT 可以获得夹杂物、裂纹、断丝等缺陷清晰检测图像，能够实现材料孔隙率计算。

Abstract

Ceramic matrix composite is increasingly wide used because of many advantages such as high temperature resistance

corrosion resistance and high specific strength. However

various defects can be created in the production because of the limitation of raw material and manufacturing process

and those defects can be detected by ultrasonic inspection

infrared thermal imaging

X-ray inspection and so on. Based on the micro-focus CT system

this article investigates the testing method of adjustment sheet parts made of ceramic based composite. It is verified that micro-focus CT system is capable of detecting sub-millimeter holes in the production

and the result of measurement is accuracy. Besides

the micro-focus CT can obtain clear images of defects such as inclusion

crack and wire break-off. Furthermore

this CT system can achieve the calculation of porosity rate in the material.

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