Answer
The principal disadvantage of hot-isostatic pressing is that it is too expensive. Since pressure is applied on a pre-formed green piece by a gas, the process is slow and the equipment required to supply the gas that can withstand the elevated temperature and pressure is costly.
Work Step by Step
The principal disadvantage of hot-isostatic pressing is that it is too expensive. Since, pressure is applied on a pre-formed green piece by a gas, the process is slow and the equipment required to supply the gas that can withstand the elevated temperature and pressure is costly.
