Nondestructive testing of graphene/epoxy composites using THz waves

2018 ◽  
Author(s):  
Arthur D. van Rheenen ◽  
Bernt B. Johnsen ◽  
Anh H. Dam ◽  
Johann Mastin ◽  
Michel Eid ◽  
...  
Keyword(s):  
Nondestructive Testing ◽  
Epoxy Composites ◽  
Thz Waves

Thermal nondestructive testing of carbon epoxy composites: detailed analysis and data processing

1993 ◽  
Vol 26 (2) ◽  
pp. 85-95 ◽  
Author(s):  
V. Vavilov ◽  
X. Maldague ◽  
B. Dufort ◽  
F. Robitaille ◽  
J. Picard
Keyword(s):  
Nondestructive Testing ◽  
Data Processing ◽  
Detailed Analysis ◽  
Epoxy Composites ◽  
Thermal Nondestructive Testing

scholarly journals Nondestructive Internal Defect Detection Using a CW–THz Imaging System in XLPE for Power Cable Insulation

2020 ◽  
Vol 10 (6) ◽  
pp. 2055 ◽  
Author(s):  
In-Sung Lee ◽  
Joong Wook Lee
Keyword(s):  
Nondestructive Testing ◽  
Continuous Wave ◽  
Imaging System ◽  
Electrical Power ◽  
Coherent Detection ◽  
Power Cable ◽  
Thz Imaging ◽  
Cable Insulation ◽  
Detection Scheme ◽  
Thz Waves

The demand for internal nondestructive testing and inspection techniques is rapidly increasing. Using a continuous wave (CW) terahertz (THz) imaging system, we demonstrate that the internal defects in cross-linked polyethylene (XLPE) plates for power cable insulation can be detected. In a coherent detection scheme based on photomixers, which serve as the THz emitters and receivers, the change of phase occurring with the defects inside the XLPE plates is distinctly measured by the change in the amplitude of the transmitted THz waves. According to the two-dimensional images of THz waves transmitted through the XLPE plates, defects of up to 0.5 mm size located inside the XLPE plates can be detected by the internal nondestructive examination method based on CW–THz waves. This technique will be useful for internal nondestructive testing and inspection of insulation materials that require high resolution in various industries, including the automobiles, electronics, and electrical power industries.

Influence of Fiber Surface Energy on Mechanical Properties of Sisal Fiber - Bio Based Epoxy Composites

2019 ◽  
Vol 35 (4) ◽  
pp. 485-496
Author(s):  
S. RAJKUMAR ◽  
◽  
R. JOSEPH BENSINGH ◽  
M. ABDUL KADER ◽  
SANJAY K NAYAK ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Surface Energy ◽  
Fiber Surface ◽  
Epoxy Composites ◽  
Sisal Fiber

Evaluation of Spatial Resolution of Nondestructive Testing of Thermal Barrier Coating by Terahertz Imaging

2012 ◽  
Vol 132 (10) ◽  
pp. 864-870
Author(s):  
Tetsuo Fukuchi ◽  
Norikazu Fuse ◽  
Mitsutoshi Okada ◽  
Tomoharu Fujii ◽  
Maya Mizuno ◽  
...  
Keyword(s):  
Nondestructive Testing ◽  
Thermal Barrier Coating ◽  
Spatial Resolution ◽  
Terahertz Imaging ◽  
Thermal Barrier ◽  
Barrier Coating
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