This research is dedicated to the role of different amounts hexagonal BN (hBN: 0, 1.5, 3, and 4.5 wt%) on pressureless sinterability ZrB2–25 vol% SiC ceramics. Phenolic resin (5 with a carbon yield ~40 % was incorporated as binder powder mixtures after initial cold pressing, final sintering process performed at 1900 °C for 100 min in vacuum furnace. The as-sintered specimens were characterized ...

Oxyacetylene torch testing was performed at a range of angles attack on Cf/ZrB2-SiC-Y2O3 composites, from 10° to 90°. The ablation behaviour studied in-situ with thermography, and the post-ablation morphologies investigated optically elemental analysis. Significantly lower surface temperatures were observed oblique leading less damage in terms both oxidation extent material removal. Rudimentary...

In this paper, for the first time, we report manufacturing and characterization of large UHTCMCs discs, made a ZrB2/SiC matrix reinforced with PyC-coated PAN-based carbon fibres. This work was result long term collaboration between different institutions shows how it is possible to scale-up production process fabrication components. 150 mm discs were produced by filament winding consolidated sp...