Physical and statistical analyses for non-destructive methods of monitoring of chemically active composite materials

2013 ◽  
Vol 8 (3) ◽  
pp. 247-263 ◽  
Author(s):  
Boris Vilge
Keyword(s):  
Composite Materials ◽  
Statistical Analyses ◽  
Active Composite ◽  
Non Destructive ◽  
Destructive Methods

scholarly journals Roll-to-Roll In-Line Implementation of Microwave Free-Space Non-Destructive Evaluation of Conductive Composite Thin Layer Materials

2021 ◽  
Vol 11 (1) ◽  
pp. 378
Author(s):  
Grigorios Koutsoukis ◽  
Ivan Alic ◽  
Antonios Vavouliotis ◽  
Ferry Kienberger ◽  
Kamel Haddadi
Keyword(s):  
Thin Film ◽  
Composite Materials ◽  
Free Space ◽  
Near Field ◽  
Line Production ◽  
Roll To Roll ◽  
Corrugated Horn ◽  
Evaluation Module ◽  
Microwave Nondestructive Testing ◽  
Non Destructive

A free-space microwave nondestructive testing and evaluation module is developed for the low-power, non-ionizing, contactless, and real-time characterization of doped composite thin-film materials in an industrial context. The instrumentation proposed is built up with a handled vector network analyzer interfaced with corrugated horn antennas to measure the near-field complex reflection S11 of planar prepreg composite materials in a roll-to-roll in-line production line. Dedicated modeling and calibrations routines are developed to extract the microwave conductivity from the measured microwave signal. Practical extraction of the radiofrequency (RF) conductivity of thin film prepreg composite materials doped with nano-powders is exemplary shown at the test frequency of 10 GHz.

Rust creep assessment—A comparison between a destructive method according to ISO 12944 and selected non-destructive methods

2021 ◽  
Vol 157 ◽  
pp. 106293
Author(s):  
Huichao Bi ◽  
Claus Erik Weinell ◽  
Raquel Agudo de Pablo ◽  
Benjamín Santos Varela ◽  
Sergio González Carro ◽  
...  
Keyword(s):  
Non Destructive ◽  
Destructive Methods
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