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Entrapment of gas within the pores is an important reason for not achieving theoretical density in practice during sintering.

Entrapment of gas within the pores is an important reason for not achieving theoretical density in practice during sintering. Correct Answer True

Gas entrapment with in the pores does not allow us to achieve theoretical density in practice during sintering, this is because, during the final stage of sintering, pores become isolated and any gas remaining becomes trapped and thus shrinkage will be opposed by the presence of the gas in the pore. The other reasons for not achieving theoretical density in practice are presence of agglomeration, poor packing, and non-uniform particle size.

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