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Advice on tribocorrosion tester devices (CETR, CSM and Tribotechnics)

Advice on tribocorrosion tester devices (CETR, CSM and Tribotechnics)

Advice on tribocorrosion tester devices (CETR, CSM and Tribotechnics)

(OP)
Hello,

I'm working in a research center dedicated to material testing. We study both massive and coating/substrate systems. Coatings thickness range from 200 nm to 5 micrometers, and the systems can be soft on hard, polymers on metals, metals on metals, polymers on glass, etc. Idem for the massive samples (soft/hard polymers, metals, glasses).

We are looking for a tribotester :
- from Fn = mN up to 20 N (roughly) ;
- able to do tribocorrosion.

The 3 suppliers I retain up to now are CETR, CSM and Tribotechnics. The differences in these device are quiet important, and as usuall, each supplier says to be the best !

I would like to have an objective advice from this communauty, especially on the following points if possible :
- regarding the normal force, what is the best, and why : a sensor allowing a continuous range of force, or a dead weight system ? The former should be less precise as it needs to be controlled (servo-controlled), but the latter is more "rigid" because it allows only specific normal forces.
- the versatility of CETR is seducing. But I think that when you can do several things, usually you do them with less efficicency than if you are specialized in one thing. Do you know if CETR UMT-2 is really able to apply 1 mN for sure, and at the next test, 200 N for sure ?
- can you please give me a feeling about our device : for you, what are the pro's and con's based on your experience with our equipment ?

Thanks a lot for your help !

Have a nice day.




 

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