Non-Destructive Examination of

Gundtoft, H. E., Agerup, C. C. and Nielsen, T. A New Ultrasonic Inspection System for Non-destructive Examination of Precision Tubes", NDT International August 1977,... 

Fingerprinting materials, identification of bulk additives such as plasticisers and fillers. Non-destructive examination of samples... 

The most widely available technique for identifying mainly polymer, but also additives in plastics, is Fourier Transform Infrared (FTIR) spectroscopy. Samples are exposed to infrared light (4000-400 wavelengths per centimetre or cm ) causing chemical bonds to vibrate at specific frequencies, corresponding to particular energies. In the last 5 years, an accessory for FTIR has been developed, which enables non-destructive examination of surfaces and so is ideal for analysis of plastics in museum collections. Attenuated Total Reflection-FTIR (ATR-FTIR) requires samples to be placed on a diamond crystal with a diameter of 2 mm through which the infrared beam is reflected... 

Non-destructive examinations of plates, forgings and other parts before and after cladding deposition, before and after fabrication, after hydraulic tests. 

Periodic non-destructive examination of the piping and components in reactor pressure circuits, as well as of their supports, should be required to detect flaws in the material that may have become enlarged during operation. The sensitivity of the inspection techniques that are used should be set to detect and characterize flaws substantially smaller than those that could cause severe failure. Care should be exercised to ensure that ongoing inspections do not increase P by the thinning of pipework (or by other means). 

PM 36 Weld defect acceptance levels for in-service non destructive examination of set-in endplate to furnace and shell connections of shell boilers PM 37 Electrical installations in motor vehicle repair premises PM 3 8 Selection and use of electric handlamps PM 39 Hydrogen embrittlement of grade T chain... 

Finally, an area which would particularly benefit from further research is that of non destructive examination of coatings. At present there is no proven method which can measure the quality of attachment of a coating to its substrate. Equally, the ability to identify coating delamination or inclusions in monolithic ceramic components would be extremely valuable. The most promising way forward probably lies in the direction of ultrasonic scanning techniques. 

Non-destructive examination of primary containment liner welds 71/12... 

Regulatory Guide 1.19—Non-destructive Examination of Primary Containment Liner Welds. 

Some of the oxide matrices are mixed with 40 wt.% of UO2 in order to test the effects of fission and to obtain representative temperature levels. After two irradiation cycles, an intermediate non-destructive examination of the pins will be carried out in order to obtain a first assessment of the in-pile behaviour. The irradiation will continue in the MATINAlbis capsule for two irradiation cycles. Three or five pins wll be probably replaced by pins with new matrices (UZr)N, Y2O3, and lanthanide compounds. The main operational parameters are estimated to be ... 

The fuel assembly dismantling building comprising hot cells for non-destructive examination of fuel pins, and the assembly of experimental sub-assemblies. 

Affrossman S, Banks WM, Hayward D, Pethrick RA (2000) Non-destructive examination of adhesively bonded structures using dielectric techniques review and some results. Proc Inst Mech Eng Part C 214 87... 

Various techniques such as optical and electron microscopy, IR-ATR ESCA and SIMS have been used for failure mode analysis in polymeric adhesive joints. However, these techniques are not amenable for in situ, non-destructive examination of the failure surfaces as failure occurs. In order to develop in situ techniques, UV reflection and fluorescence methods are evaluated, as they can be applied via optical fibres to the actual failure surface. Failure surfaces of two types of adhesive joints are examined by UV reflection and fluorescence, complemented by FT-IR ATR studies. The first joint studied is PU on epoxy-coated steel. The second is PETP/PE/PETP. 8 refs. 

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