Grain refinement and non-ohmic properties in (Co, Ta)-doped SnO2 ceramics by Cr2O3 additions and the in situ formation of CoCr2O4

1. Montes Mejía, A.E.
2. Pech-Canul, M.I.
3. Hernández, M.B.
4. García-Villarreal, S.
5. Rodríguez, C.G.
6. Aguilar-Martínez, J.A.