Study on AlON phase evolution and densification behavior as a function of particle size and doping amount

Pressureless sintering of transparent AlON ceramic with assimilable γ‐Al2O3 as sintering promoting additives

“…In Figure 3, the emergence of the diffraction patterns of the Al 2 O 3 phase gives a hint of the decomposition of AlON at 1200°C, which means that the nitrogen‐rich AlON powder we synthesized is not very stable during the sintering. This phenomenon is also be found by other researchers 15,16 . When the temperature is increased to 1400°C, the diffraction patterns of AlN phase also become notable, which again suggests that parts of AlON have decomposed.…”

“…This phenomenon is also be found by other researchers. 15,16 When the temperature is increased to 1400 • C, the diffraction patterns of AlN phase also become notable, which again suggests that parts of AlON According to the AlON phase diagrams of Willems, 17 McCauley and Corbin, 18,19 and McCauley et al, 20 AlON is not stable under 1600 • C, so the decomposition of AlON was found in this work. With the increase of temperature, the solid solution range of AlN-Al 2 O 3 becomes wider, so we found the re-formation of AlON.…”