journal article·2010-05Open access

Oxidation of β-SiAlONs prepared by a combination of combustion synthesis and spark plasma sintering

Xuemei Yi, Akira Yamauchi, Kazuya Kurokawa, Tomohiro Akiyama

Corrosion Science· Volume 52· Issue 5

Abstract

The oxidation of β-Si_[6-z]AlzOzN_[8-z]s (z = 1, 2, and 3) prepared by a combination of combustion synthesis (CS) and spark plasma sintering (SPS) was investigated. The oxidation experiments were conducted at temperatures of 1000℃, 1200℃, and 1400℃ in air for 100 h (360 ks). Their oxidation kinetics follows a parabolic rate law, and the deviation from that increases with a decrease in the z value. The results of XRD and EPMA showed that the oxide formed on β-SiAlONs (z = 1 and 2) consists of silica and mullite, and on β-SiAlON (z = 3) of only mullite.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Advanced ceramic materials synthesis · MXene and MAX Phase Materials · Advanced materials and composites

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (19)

Show source-provided references
1. Sialons and related nitrogen ceramics10.1007/BF02396649 ↗
2. Dense single-phase β-sialon ceramics by glass-encapsulated hot isostatic pressing10.1007/BF01105715 ↗
4. Self-propagating exothermic reactions: the synthesis of high-temperature materials by combustion10.1016/0920-2307(89)90001-7 ↗
5. Mechanically activated combustion synthesis of beta-Si6−zAlzOzN8−z (z=1–4)10.1111/j.1551-2916.2006.01387.x ↗
6. A new route to synthesize [beta]-Si6−zAlzOzN8−z powders10.1016/j.jallcom.2006.09.089 ↗
7. Effect of mechanically activated raw materials on beta-sialon formation by combustion synthesis10.1557/JMR.2007.0338 ↗
8. Dense β- and α/β-SiAlON materials by pressureless sintering of combustion-synthesized powders
9. Rapid densification and deformation of Li-doped sialon ceramics10.1111/j.1551-2916.2004.00727.x ↗
10. The oxidation kinetics of β-sialon ceramics10.1016/0955-2219(94)90026-4 ↗
11. Some new perspectives on oxidation kinetics of SiAlON materials10.1016/j.jeurceramsoc.2007.09.041 ↗
12. Early-stage thermal oxidation of carbothermal beta-sialon powder10.1111/j.1151-2916.1998.tb02331.x ↗
13. Thermal oxidation of carbothermal β′-sialon powder: reaction sequence and kinetics10.1039/a604354b ↗
14. Thermal oxidation of sintered beta-sialon (z=3) ceramics in atmospheres with water vapor10.4028/www.scientific.net/KEM.264-268.893 ↗
15. X. Yi, K. Watanabe, T. Akiyama, Fabrication of dense β-SiAlON by a combination of combustion synthesis (CS) and spark plasma sintering (SPS), Intermetallics, in press.
16. Unit-cell dimension of β-sialon10.1111/j.1551-2916.1988.tb00244.x ↗
17. Thermodynamics and kinetics of oxidation of hot-pressed silicon nitride10.1007/BF00540931 ↗
18. Oxidation and corrosion of silicon nitride ceramics with different sintering additives at 1200 and 1500°C in air, water vapour, SO2 and HCl environments – a comparative study10.1016/j.corsci.2008.12.014 ↗
19. Investigation of isothermal oxidation of AlN ceramics using different kinetic model10.1016/j.corsci.2008.12.007 ↗