Scattering Study Of Microstructurally Birefringent Glasses

Microstructurally birefringence, phase-seperated borosilicate glasses were investigated by x-ray small-angle scattering and light scattering. X-ray small-angle scattering data confirmed the presence of ellipsoidal particle and the light-scattering data indicated the presence of anisotropies distribution of particles. These observations support the previous contention that the positive birefringence is due to the form birefringence and the negative birefringence is due to the form birefringence and the negative birefringence is due to the anisotropies distribution of spherical particles.