sesquioxide

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free energy of formation of rare-earth sesquioxides

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sesquioxide

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rare-earth elements

In rare-earth element: Sesquioxides
All the rare-earth metals form the sesquioxide at room temperature, but it may not be the stable equilibrium composition. There are five different crystal structures for the R₂O₃ phase. They are designated as A, B, C, H, and X types (or forms), and their…
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