ChemInform Abstract: A Silicoboron Carbonitride Ceramic Stable to 2000 °C.

Abstract

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Effect of the polycarbosilane structure on its final ceramic yield

“…1,2 Furthermore, polymer derived ceramics have high thermal stability, 3 thermal mechanical properties, 4,5 and oxidation resistance both in dry and wet environments. [6][7][8][9] These unique properties of polymer derived ceramics render them as potential materials for high temperature structural applications.…”

Thermal stability and mechanical properties of SiC particulate-reinforced Si–C–N composites after heating at 2000°C

“…The oxidation reduced the open porosity due to the volume expansion during the conversion of Si-N-C and SiC into SiO 2 (linear expansion of SiC 0.6 N 0.9 : 36%), which inhibited the inner oxidation at the third stage. 20,21 The Si-C-N powder compact revealed a continuous weight gain up to 1450 • C because interior oxidation proceeded even at high temperature presumably due to the presence of large pores ( Fig. 6(b)).…”

Preparation and anti-oxidation characteristics of ZrSiO4–SiBCN(O) amorphous coating

“…All specimens were hand-polished using 400 grit SiC papers, cleaned with distilled water and then dried at 393 K for 2 h. ZrB 2 powders (China New Metal Materials Technology Co. Ltd., particle size ∼700 nm, purity ≥99 mass%) and polyborosilazane (PBSZ) (synthesized according to the reports of Riedel [32] and Li [25]) were used as the starting materials. Firstly, PBSZ was solved in ethanol (mass ratio 1:4).…”