Abstract : A polysilazane precursor was studied from 500 to 1600°C by means of thermogravimetry and associated mass spectrometry. At 550°C, opposite influences of methane and hydrogen partial pressures on the weight loss were evidenced. At 1600°C, the amorphous solid crystallizes into silicon, silicon carbide and silicon nitride phases by producing carbon and silicon monoxides and nitrogen.
Marie Gabrielle Salvetti, Michèle Pijolat, Michel Soustelle. Pyrolysis of a polysilazane precursor to SiCN ceramics. Solid State Ionics, Elsevier, 1993, 63-65, pp.332-339. ⟨10.1016/0167-2738(93)90125-M⟩. ⟨emse-00610368⟩