Stresses binder burnout

A small amount of polymer can produce an enormous volume of gas, which must be removed from the porous green body. The flow of this gas in the porous network of the ceramic green body can create a pressure build-up which puts stress on the green body. The stress induced by flow and temperature gradients in the green body are also discussed, so that binder burnout conditions can be selected to prevent cracking of the green body. 

Stress induced during binder burnout are due to temperature profiles and pressure profiles in the ceramic green bodies. The effective local stress, o-g, is given by [58]... 

ThemuU Stress Induced during Binder Burnout... 

The thermal stress in binder burnout is the same as those discussed in Section 14.5.1. For a detailed treatment, please refer to that section. Here we give a brief description of the stress for an infinite plate, to specify the nomenclature. Table 15.8 gives the details of thermal stresses for plate, cylinder, and sphere geometries. 

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