Tellurium dioxide-based glasses attract special interest due to their exceptional properties like low melting temperatures, good infrared transmittance, high refractive index, and high third-order optical nonlinearity.

Despite its high tendency for crystallization,^1,2 TeO₂ glass can be formed by quenching melts from alumina crucibles^3–6 and by rapid quenching from platinum crucibles using the twin-roller technique.⁷ The first method easily produces glasses in large sizes, while the second method produces glass flakes used in neutron diffraction studies. Physical properties of tellurite glasses melted in alumina crucibles^3–6 differ drastically from those melted in platinum crucibles.^7,8