| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1468393 | Corrosion Science | 2016 | 12 Pages |
•Processing of TaC based Ultra High Temperature Ceramic Plasma-jet exposure damage of TaC with SiC and carbon nanotube (CNT) reinforcements.•Thermogravimetric analysis (static oxidation) complimenting damage from plasma jet exposure.•High temperature (up to 900 °C) thermal conductivity measurement Structural stability of TaC-SiC-CNT composites via instrumented indentation testing.
An ultra-high temperature ceramic, TaC, is reinforced with SiC and carbon nanotubes (CNTs) to provide protection under extreme thermal and chemical environments. High temperature performance of spark plasma sintered TaC-based composites was evaluated through plasma arc-jet exposure under heat-flux of 2.5 MW/m2 for 30 s. The composite shows a significant improvement in the oxidation resistance compared to that of TaC. Complimentarily, thermogravimetric analyses (up to 1500 °C) elicits shift in the onset temperature of oxide formation from 735 °C in TaC to 901 °C (with synergistic addition of both SiC and CNT) insinuating the enhanced thermal stability of TaC-SiC-CNT composites.
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