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Vibrational Spectroscopy of Boron Nitride at High Temperatures and Pressures
Published online by Cambridge University Press: 26 February 2011
Abstract
Raman scattering measurements are used to distinguish between amorphous and crystalline phases in sputter deposited boron nitride coatings and bulk materials. Changes in vibrational line frequency and linewidth can be attributed to differences in particle size or inherent strain which can be quantified from pressure-dependent measurements of the bulk material. The response of the Raman-allowed E2g modes (hexagonal phase) to temperature is described by a forced dampeg harmonic oscillator model from which the intra- and interplanar lattice thermal expansion can be estimated.
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- Copyright © Materials Research Society 1990