Oxidation behaviour of two-dimensional C/SiC modified with self-healing Si–B–C coating in static air

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

“…The formation of low viscosity borosilicate glass on the surface of the coating steps from this process, and it will spread along surface of the coating rapidly. Hence, the partial pressure of oxygen is low in the inner part of the coating, which would result in the active oxidation of SiC (SiC + O 2 → SiO + CO) and the evaporation of SiO in return [19,25,34]. This oxidation mechanism is distinctively different from that of pure SiBCN.…”

“…When oxidized at medium temperature (1273-1473 K), borosilicate glass shows low viscosity and high wettability. It can seal cracks in the coating effectively and inhibit further oxidation [9][10][11][17][18][19]. At high temperature (1473-1773 K), the high-thermally stable ZrSiO 4 phase which is formed by the reaction between ZrO 2 and SiO 2 , can improve the stability of silica glass and lower the diffusion rate of oxygen [20][21][22].…”

Crack-healing in spinel (MgAl2O4) ceramic

“…Briefly, MgCO 3 (99% purity, BulkSupplements) and Al(OH) 3 (99% purity, Alpha Chemicals) powders with molar ratio of 1:2 were mechanically activated for 6 h in a planetary ball mill (Across International, PQ-N2) in air at ambient temperature and then the ball milled powders were heat treated at 1200°C for 1 h in a tube furnace (MTI Corporation, GSL 1700x) to produce single-phase spinel. The obtained spinel powder was uniaxially pressed into cylindrical pellets with the height and diameter of 12 Â 12 mm in a hardened steel mold at a pressure of 200 MPa using 10 wt% glycerol binder.…”

“…Ceramics with crack-healing ability can prevent catastrophic failure of structures, and subsequently increase the reliability of the structures in service [1][2][3][4][5].…”

Effects of ZrC coating on mechanical properties of PIP-C/SiC composites

“…Anti-oxidation coatings, which may be based on carbides [7][8][9], silicides [10,11] or oxides [12][13][14], was a key technique for advanced composites.…”