METHOD FOR PRODUCING FIBRES OF MIXED SPINEL-GARNET COMPOSITION Russian patent published in 2022 - IPC C04B35/44 C04B35/622 D01F9/10 

FIELD: fibres.

SUBSTANCE: invention relates to methods for producing fibres of mixed oxide composition MgAl₂O₄/Y₃Al₅O₁₂ for creating high-temperature ceramic composites with improved mechanical properties. The method consists in melt moulding of polymer fibres at 80 to 180°C from fibre-forming organomagnesium oxaneyttrium oxanealuminoxanes with a molar ratio of Al/Y 5.8 to 6.0 and Al/Mg 2.4 to 2.5, followed by stagewise heat treatment in an air atmosphere at 500 and 1,500°C, resulting in the formation of ceramic fibres of mixed oxide composition: MgAl₂O₄ and Y₃Al₅O₁₂.

EFFECT: production of fibres suitable for creating ceramic composites with improved mechanical properties.

1 cl, 1 ex, 7 dwg