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Table 3
Main reactions of rare earth in non-oriented silicon steel [36].
| Number | Chemical reactions | ΔGθ=A+BT, J/mol | |
|---|---|---|---|
| A | B | ||
| [1] | [Ce]+3/2[O]=1/2(Ce2O3) | –715560 | 180 |
| [2] | [Ce]+[Al]+3[O]=(CeAlO3) | –1366460 | 364.3 |
| [3] | [Ce]+[S]=(CeS) | –42780 | 121 |
| [4] | [Ce]+3/2[S]=1/2(Ce2S3) | –537290 | 164 |
| [5] | [Ce]+4/3[S]=1/3(Ce3S4) | –498480 | 146 |
| [6] | 2[Ce]+2[O]+[S]=(Ce2O2S) | –1353590 | 332 |
| [7] | [Ce]+(Al2O3)=(CeAlO3)+[Al] | –162837 | –22.4 |
| [8] | [Ce]+[S]+(CeAlO3)=(Ce2O2S)+[Al]+[O] | 12870 | –32.3 |
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