AlN-films prepared by de reactive magnetron sputtering. AlN in an Ar+N
-2 gas mixture have been prepared and their microstructure, hardness,
refractive index and IR transmittance examined. At lambda = 640 nm the
refractive index was 1.93 and k = 3 x 10(-3); high transmission occur
red between [??] structure and oxygen on microhardness is discussed. (
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