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Machine Learning Accelerated Design and Discovery of Rare-earth Phosphates as Next Generation Environmental Barrier Coatings

Sep 24, 2022
CMAS interaction with Multicomponent Rare-earth Phosphate and interfacial reaction preventing CMAS penetration
CMAS interaction with Multicomponent Rare-earth Phosphate and interfacial reaction preventing CMAS penetration

  • Researchers from Rensselaer Polytechnic Institute synthesized single phase multiple component rare-earth phosphate as potential environmental barrier coatings of structure materials for space and aerospace application. 

  • Thermo-mechanical properties of the multicomponent phosphates are measured. 

  • The resistance of the multicomponent phosphates against molten glass attack was investigated at different temperature and durations. 

  • Multicomponent phosphates display comparable coefficient of thermal expansion, but significantly lower thermal conductivity as compared with single component counterparts, implying immense potentials as environmental barrier coating. 

Additional Materials

U.S. National Science Foundation and NSF DMREF, Materials for Our Future

This material is based upon work supported by the U.S. National Science Foundation Award No. 2015237. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the U.S. National Science Foundation. This site is maintained collaboratively by principal investigators with NSF DMREF awards, independent of the NSF.