Neutron darkfield imaging of fiber composites

被引：0

作者：

Hilger, Andre ^{[1
,2
]}

Kardjilov, Nikolay ^{[1
]}

Lange, Axel ^{[3
]}

Kupsch, Andreas ^{[3
,4
]}

Hentschel, Manfred P. ^{[3
,5
]}

Manke, Ingo ^{[6
]}

机构：

[1] HZB, Berlin, Germany

[2] TFH, Berlin, Germany

[3] BAM, Berlin, Germany

[4] Dresden Int Univ DIU, Dresden, Germany

[5] TUB, Berlin, Germany

[6] Helmholtz Zentrum Berlin Mat & Energie HZB, Imaging Grp, Berlin, Germany

来源：

MATERIALS TESTING | 2021年 / 63卷 / 07期

关键词：

neutron radiography; darkfield imaging; shearing gratings; Talbot-Lau interferometer; fiber composites; fiber-matrix debonding; nondestructive evaluation; DIFFERENTIAL PHASE-CONTRAST; DIFFRACTION GRATINGS; TOMOGRAPHY; VISIBILITY; INSTRUMENT;

D O I：

10.1515/mt-2020-0103

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

While X-ray based darkfield imaging with grating interferometers is already widely used, darkfield imaging with neutrons has still a relatively small user community focused mostly on magnetic materials. Here, we demonstrate the application of neutron darkfield imaging byTalbot-Lau type grating interferometry to fiber reinforced plastics. Common carbon and glass fiber composites have been investigated including characteristic damage structures. The darkfield images show a strong signal response caused by fiber delamination, suitable fiber direction, particles, pores and cracks. The basic principles of neutron darkfield imaging applied to fiber composites are highlighted.

引用

页码：623 / 629

页数：7

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