Low-temperature preparation of novel stabilized ALUMINUM TITANATE (cas 12004-39-6) ceramic fibers via nonhydrolytic sol-gel method through linear self-assembly of precursors

Add time:07/21/2019    Source:sciencedirect.com

Stabilized ALUMINUM TITANATE (cas 12004-39-6) fibers were prepared via nonhydrolytic sol-gel (NHSG) method through linear self-assembly of precursors. The results show that NHSG method generates the heterogeneous condensation with the formation of Al–O–Ti, Mg–O–Ti, Fe–O–Ti, Mg–O–Al, Fe–O–Ti bonds, which ensures that magnesium ions and iron ions can enter aluminium titanate lattice and stabilize it at 750 °C. Bimolecular associated structure of chlorotitanium ethoxide titanium precursor promotes the self-linear-assemble of all precursors, which enables the excellent spinnability of sol. Stabilized aluminum titanate fibers have excellent corrosion resistance. The thermal expansion coefficient of stabilized aluminum titanate ceramic is −0.142 × 10−6°C−1.

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