Determine the Pilling-Bedworth ratio for the following metals and predict the behavior of the oxide...

Question

Determine the Pilling-Bedworth ratio for the following metals and predict the behavior of the oxide that forms
on the surface. Is the oxide protective, does it flake off the metal, or is it permeable? (See Appendix A for the
metal density.)
Oxide Density (g/cm3)
Mg-MgO 3.60
Na-Na2O 2.27
Ti-TiO2 5.10
Fe-Fe2O3 5.30
Ce-Ce2O3 6.86
Nb-Nb2O5...

David · Accepted Answer

Determine the Pilling-Bedworth ratio for the following metals and predict the behavior of the oxide that forms 
on the surface. Is the oxide protective, does it flake off the metal, or is it permeable? (See Appendix A for the 
metal density.) 
 Oxide Density (g/cm3) 
Mg-MgO 3.60 
Na-Na2O 2.27 
Ti-TiO2 5.10 
Fe-Fe2O3 5.30 
Ce-Ce2O3 6.

	Oxide Density (g/cm³)
Mg-MgO	3.60
Na-Na₂O	2.27
Ti-TiO₂	5.10
Fe-Fe₂O₃	5.30
Ce-Ce₂O₃	6.86
Nb-Nb₂O₅	4.47
W-WO₃	7.30

Determine the Pilling-Bedworth ratio for the following metals and predict the behavior of the oxide that forms on the surface. Is the oxide protective, does it flake off the metal, or is it permeable?...

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