I need to write up some stuff with general information about different interfaces used in Thin Film Processing. I'm pretty sure its a way to analyze the quality of the different procedures. * Abrupt Interface * Mechanical Interface * Graded Interface * Compound Interface * Psuedo Diffusion Interface I've tried looking all of this stuff up through my textbook (which is quite small and incomplete) and I've done a ton of searching on the internet for general information about these interfaces. Can anyone point me in the right direction where I can find information about these? I'm really not sure where I should look, or what search terms will give me some general info! Thanks PF!