Effects of BN coating on the oxidation and crystallization behavior of Si3N4 fibers
Source abstract
Abstract
Si 3N 4 fiber-reinforced ceramic matrix composites are promising wave-transparent materials for antenna windows in hypersonic vehicles. The reinforcing fibers and fiber/matrix interface determine the performance and failure mode of the composite. BN are usually used as weakly bonded interphase due to its chemical inertness. Understanding the impact of the BN on Si 3N 4 fibers at elevated temperatures is of crucial significance. In this work, a new phenomenon that BN coating significantly influences the crystallization behavior of the fibers was discovered. Notably, BN coating can raise the crystallization temperature of Si 3N 4 fiber and prevent its crystallization even at 1600℃ in air.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Advanced materials and composites · Boron and Carbon Nanomaterials Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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