Estimation of sintering pressure during the pore fragmentation via coordination number and reversal of curvature

Sintering is a process of removing pores from powder compact, and the pressure to shrink called sintering pressure. In this research, explain improvement in accordance with pore fragmentation, change number grains per (coordination number) was highlighted, expressed calculated terms coordination number. To end, variables affecting sintering, such as grain size, direction curvature, dihedral angle, were numbers. Evaluation for bimodal present 1 wt.% Al-doped ZnO showed that micron expected exhibit 21 kPa at mode while submicron evaluated have 6.3–7.9 MPa. This shows can be induced by initial heat treatment under mild external pressure, has effect improving approximately 300 times.