I have organic coating with a nano-material reinforced on to it. The coating thickness in dry condition is around 200 micrometer. Which hardness test among the following is best for research and publication purpose ?
I do not have nano-indentation tester in my University, however atleast the pencil hardness tester and sward rocker can be bought at a lower price. Also the thickness are not that small, that the indentation would be more than 1/10th of the coating thickness.