G. Mobus et al., MEASUREMENT OF COHERENCY STATES OF METAL-CERAMIC INTERFACES BY HREM IMAGE-PROCESSING, Physica status solidi. a, Applied research, 150(1), 1995, pp. 77-87
Internal interfaces between metals and ceramics, recorded by high-reso
lution electron microscopy (HREM), are examined with respect to their
coherency relationship between the two sublattices. Four different ima
ge processing techniques with complementary properties are introduced
and compared, such as spatially resolved space frequency analysis, a m
oire technique, and two variations of cross correlation in one and two
dimensions. Two experimental images of interfaces are examined, inclu
ding a semi-coherent interface with large misfit between Al-rich Ni an
d gamma-Al2O3, and secondly an incoherent interface between Cu and alp
ha-Al2O3.