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Technical Discussions
Sergio
Sergio
02:38 Jun-05-2003
Coating Thickness Measurement

Hi,

I am trying to find a device in order to obtain the thicknesses values of a Aluminium Coating over Nickel base substrate.

Can anybody help me?

Thanks in advanced


    
 
 Reply 
 
Doug Breeze
Director, Consultant; R&D
Inspection Software Limited, United Kingdom, Joined May 2000, 20

Doug Breeze

Director, Consultant; R&D
Inspection Software Limited,
United Kingdom,
Joined May 2000
20
00:19 Jun-06-2003
Re: Coating Thickness Measurement

Not sure if we can help but what thicknesses are involved? Presumably microns of Aluminium over mm of Nickle. What form does the Nickle take... wire, plate rod, foam, sinter, coating, etc?




    
 
 Reply 
 
Sergio
Sergio
02:08 Jun-06-2003
Re: Coating Thickness Measurement
The thickness goes from 0,015 to 0,075 mm.

The base material goes from 1 mm to 3 mm aprox.

Thanks


    
 
 Reply 
 
John Hansen
Director, - Eddy Current Technology
ETher NDE Ltd, United Kingdom, Joined Oct 1999, 73

John Hansen

Director, - Eddy Current Technology
ETher NDE Ltd,
United Kingdom,
Joined Oct 1999
73
04:44 Jun-06-2003
Re: Coating Thickness Measurement
Hi Sergio

Providing the aluminium is pure then this should be possible with an eddy current procedure.

My honest advice is that you should try Fischer Technology from Germany for an off the shelf solution http://www.helmut-fischer.de/ (a competitor of ours) first.

If this material is too thin for them then I feel that with one of our standard instruments (e.g. Phasec 2s www.phasec2.com) a procedure could be developed or possibly using our conductivity meter (AutoSigma 3000 http://www.hocking.com/as_3000.htm).

Regards
John Hansen
Industrial Product Manager
Hocking NDT Ltd.
e-mail Jhansen@hocking.com
web www.hocking.com
tel +44 (0) 1727 795509
fax +44 (0) 1727 795409



    
 
 Reply 
 
Doug Breeze
Director, Consultant; R&D
Inspection Software Limited, United Kingdom, Joined May 2000, 20

Doug Breeze

Director, Consultant; R&D
Inspection Software Limited,
United Kingdom,
Joined May 2000
20
05:34 Jun-06-2003
Re: Coating Thickness Measurement

John Hansen's advice is correct. There are several suppliers who should be able to supply hand-held gauges to measure Al on Ni economically... search on Google for 'Coating Thickness Guages' if necessary.

The task may get more unpredictable for Ni alloys and/or at changes in component section. If you need a computerised or automated system contact me separately.



    
 
 Reply 
 

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