In order for a pad to have some inherent characteristic defined by it's content of ceramic fiber, first we must define how much ceramic fiber is in the pad. Until that happens, there is no inherent characteristic that be attributed to a pad based on it compound contents.I never did jump on the Ceramic pad bandwagon, so other than the claim they don't dust out as bad as other compounds, what other advantage do they offer? A harder compound pad would just wear out your rotors quicker IMO. I've read that some pad manufacturers just put a ceramic coating on the pad that quickly wears off after bed in, then basically all you have is a semi metallic pad with some copper shavings thrown in for good measure.
Low or no dust are just marketing BS. There is no physical way to hold a wearable compound against a high force spinning iron disc and not produce dust from both the rotor and the pad. It just isn't possible. The only difference for the most part is the color of the dust being product.
Light color dust = low dust compounds, darker color dust = high dust compounds.