Evolution of microstructure and radiative property of metal silicide–glass hybrid coating for fibrous ZrO 2 ceramic during high temperature oxidizing atmosphere
Source abstract
Abstract
Abstract To develop a high emissivity, high-temperature-resistant coating for a reusable thermal protection system, a metal silicide–glass hybrid coating was prepared on fibrous ZrO 2 ceramic by rapid sintering method, which comprises a Ta Si O glass layer and a dense MoSi 2 –TaSi 2 –glass layer and exhibits improved oxidation behavior at 1773 K in air for 50 h. During oxidation, the total emissivity in 0.3–2.5 μm slightly fluctuates around 0.9 without obvious degradation. The emissive mechanism was identified as electron transition in interband of metal silicides and in impurity states of amorphous SiO 2 and lattice vibration of crystalline SiO 2 .
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced ceramic materials synthesis · High-Temperature Coating Behaviors · Nuclear materials and radiation effects
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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