Does anyone have any comments (direct or indirect evidence) or know of any references, to something I've wondered about for a long time.
Decades ago, someone brought me some samples from materials science here, where I was told that the carbon coating was deposited by sputtering. I had difficulty acquiring good epma results, so I removed the carbon coat, coated in my evaporator, and had good
results. From then on, I assumed that
"sputtering of carbon" might not be as "good" as evaporated carbon, though I never did any true test (yes, the coating thickness might have been greatly different from my standards, I know now).
Was I wrong to cast a negative light upon sputtered carbon coating for epma? Any thoughts?
John Fournelle Ph.D.
Department of Geoscience, University of Wisconsin
1215 West Dayton Street, Madison, WI 53706
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