High-temperature corrosion of a Si3N4/W composite exposed to molten MgCl2-NaCl-KCl salts
Source abstract
Abstract
The high-temperature corrosion behavior of a Si 3N 4/W composite under the molten MgCl 2 -NaCl-KCl salts has been investigated. It is suggested that the molten salts diffuse along the physical surface defects and enter the interior of adjacent Si 3N 4 /W grains, leading to the 9.1% bending strength loss after 400 hours for corrosion. In air atmosphere, oxidation products WO 2, WO 3 , and corrosion product MgWO 4 caused a 34.3% bending strength decrease after 400 hours for corrosion. This study elucidates the high-temperature molten chloride salt corrosion mechanisms of the Si 3N 4 /W composite material under two different atmospheres. The composite demonstrates relatively excellent corrosion resistance in service environments.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Magnesium Oxide Properties and Applications · Recycling and utilization of industrial and municipal waste in materials production
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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