Corrosion behavior of volcanic ash and calcium magnesium aluminosilicate on Yb2SiO5 environmental barrier coatings
Source abstract
Abstract
High-temperature corrosion behavior of volcanic ash and artificial calcium-magnesium-aluminosilicate (CMAS) on sintered ytterbium monosilicate (Yb2SiO5), and the corrosion resistance of Yb2SiO5 as an environmental barrier coating, are investigated. Dense sintered Yb2SiO5 specimens were prepared using the spark plasma sintering method at 1400°C for 10 min. These specimens were subjected to a hot corrosive environment of molten Iceland volcanic ash and CMAS at 1400°C for 2, 12, and 48 h. Different corrosion phenomena, i.e., continuous reaction with CMAS and weak reaction with the volcanic ash, were observed. From the results of in-situ high temperature X-ray diffraction measurement and scanning electron microscope-energy dispersive X-ray spectrometry studies, Yb2SiO5 exhibits excellent resistance to volcanic ash but lacks resistance to CMAS attack.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced ceramic materials synthesis · High-Temperature Coating Behaviors · Glass properties and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Research Center for Structural Materials, National Institute for Materials Science
School of Mechanical Engineering, Kookmin University
International Center for Materials Nano architectonics, National Institute for Materials Science
Research Network and Facility Services Division, National Institute for Materials Science
College of Engineering, Nihon University
References (25)
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