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Which of the following is/are the causes for the poor oxidation resistance of metal oxide with high Pilling and Bed worth ratio?

Which of the following is/are the causes for the poor oxidation resistance of metal oxide with high Pilling and Bed worth ratio? Correct Answer Large compressive stresses in the oxide, cracking and spalling

Metal oxides with a value greater than 1 Pilling and Bed worth ratio have poor oxidation resistance due to large compressive stresses in the oxide, cracking, and spalling.

Related Questions

Pilling and Bed worth proposed that oxidation resistance is related to the volume ratio of oxide and metal per grams atom of metal.
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For oxide layer to be protective, the Pilling Bedworth ratio should be