Numerical Simulation of the Temperature and Stress Field Evolution Applied to the Field Assisted Sintering Technique

Figure 6

(a) The hydrostatic stress evolution at points 1 and 2 showing the opposing forces due to the uniaxial loading and thermal expansion acting over the specified time intervals. (b) The hydrostatic stress as a function of radial position inside the Al₂O₃ sample at line 1-2. Similar to the temperature distribution within the sample, the stress is also significantly nonhomogeneous.

(a) Hydrostatic stress-time evolution

(b) Hydrostatic stress inside Al₂O₃ sample