SURFACE VIBRATIONS OF SILICON-NITRIDE - INELASTIC NEUTRON-SCATTERING STUDY AND COMPUTER MODELING

In practice, the chemical formula Si3N4 represents a family of materia ls in which Si3N4 constitutes the major phase. The properties of each family member depends, in part, on its microstructure developed during manufacturing. In this paper, properties of five family members diffe ring in their method of manufacture are considered microscopically fro m the surface chemistry viewpoint. To solve the problem we have studie d the vibrational spectra and have performed semiempirical quantum che mical modeling of surface properties depending on the manufacturing wa ys.