Effect of temperature and time parameters of alumini-um-silicate melts on the elastic modulus of fibres

The paper studies the dependence of the elastic modulus of aluminosilicate fibers on the fiber diameter and on the temperature-time parameters of melt holding. It is established that modulus of elasticity of aluminium-silicate fibres depends on the chemical composition and diameter of the fibres. With an increase in diameter from 6 µm to 300 µm, the elastic modulus decreases by up to 25 %. For fibres with a diameter of 9 to 30 microns, this decrease is insignificant and is within 2-3 %. The temperature at which fibres are produced within the fibre formation interval for different compositions is characterised by both an increase and a decrease in the elastic modulus, and no clear dependence was found. The melt holding time affects the melt homogeneity and texture of the fibres, which improves the elastic modulus, but only slightly, by 2-3 %.