Improved crystallisation of polysilazane‐derived Si 3 N 4 /SiC nanocomposites with Fe 2 O 3 catalyst
نویسندگان
چکیده
In the present study, use of a 3 wt% Fe2O3 catalyst improved crystallisation polysilazane PSN2. Crystallisation peaks higher intensity were observed for Si3N4 and SiC at 1250 °C by using than 1500 without Fe2O3. Besides, effects temperature on morphology samples determined through scanning electron microscopy. Porous structures these transformed to flaky near-spherical nanoparticles as temperatures increased 1350 1450 °C, respectively. Finally, mechanism Fe origination from reduction, production supersaturated liquid alloy, release diffusion N2 proposed formation.
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ژورنال
عنوان ژورنال: Micro & Nano Letters
سال: 2021
ISSN: ['1750-0443']
DOI: https://doi.org/10.1049/mna2.12064