Fabrication Processes and Properties of Highly Pure MgAlON Materials

Abstract

In this paper, the MgAlON ceramic was fabricated by Spark Plasma Sintering (SPS) and hot press sintering respectively. The results showed that highly pure and single-phase MgAlON could be fabricated at lower sintering temperature in a short period through SPS process, compared with the conventional Hot Press sintering (HP) process. The bending strength of MgAlON specimens prepared by SPS process was higher than 500MPa while bending strength of HP specimens was much lower. The open porosity was almost eliminated in SPS MgAlON specimens. Spark Plasma Sintered MgAlON had a single phase of MgAlON while Hot Press Sintered MgAlON had major MgAlON and minor AlN and Al2O3.

Effect of Bi_1.5ZnNb_1.5O₇ Nanopowder on its Ceramic Properties

“…In our previous work [7,8], the single-phase Bi 1.5 ZnNb 1.5 O 7 nanopowder was successfully synthesized by HTM. At the same time, Bi 1.5 ZnNb 1.5 O 7 powders were prepared by CS at 800°C for 3h.…”