Suppose i am performing ball on disc tribological tests under lubricated conditions containing nanoparticles. After the test i wash the sample with Acetone or Benzene, will the EDS analysis show the trace of nanoparticles???
After the test, the sample can be washed with acetone in order to perform EDS analysis. I used this before and it was ok.
It is a common method to use acetone or Benzene to wash your samples after the test for tribo studies. Regarding the visibility of nano-particles that you are using for EDS analysis, the possible chemical reaction of those nano-particles with acetone/Benzene and surface layers of the ball and disk are of importance in some cases. If you could provide more info with the main application of the nano particles in your lubricant, it would be easier to answer the question.
I agree that surface characteristics of tribofilm formation will play a role in the EDS analysis
Let us assume that you are trying to evaluate the performance of nanofluids in minimum quantity lubrication (MQL). In MQL the flow rate of the fluid is very low (typical values - 5 mL/hr to 200 mL/hr). The loading of nanoparticles would be hardly 1%. So detecting nanoparticles under EDS would not be easy. Cleaning the sample with acetone would not change the situation to a great extent. However, if they form a tribo-film, then detection of the tribo-film would be easier under EDS.
I suggest you to do not wash you sample after testing even if you use lubricant in order to no destroy the thin layer of tribofilm formed during the test.
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