Ablation resistance of ZrO2-encapsulated ZrB2 coating with 3D thermal conduction network applied over carbon/carbon composites
Source abstract
Abstract
In this work, ZrO 2 with different ZrB 2 contents (0, 15, 30,40 wt%) composite powders were synthesized by sol-gel, then they were sprayed on carbon/carbon composites using plasma spraying to construct a three-dimensional (3D) thermal conduction network within the formed coating. Oxyacetylene ablation tests were carried out under 4.2 MW/m 2 to investigate the effect of the 3D thermal conduction network on the ablation resistance of coated samples. The encapsulation structure formed during sol-gel process benefits to slowing the oxidation rate of ZrB 2 and the content of ZrB 2 is critical for establishing a stable 3D thermal conduction network within the coating.
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Research context
OpenAlex topics: Advanced ceramic materials synthesis · Thermal properties of materials · Diamond and Carbon-based Materials Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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