Oxidation of φ′-aluminium oxynitride
Source abstract
Abstract
Abstract The oxidation in air of single crystal φ′-aluminium oxynitride (AlON) grains has been characterized by thermogravimetry and X-ray diffraction in the 1273–1673 K range. Two oxidation stages have been observed, suggesting the formation of a transitional phase. Below 1473 K, oxidation results in the apparition of platelets and noodle-like crystals on the surface of the initially faceted single crystals. Above 1473 K, low density α-alumina polycrystals start forming on the grain surface and grow towards the grain core with increasing temperature or time. Their low density is mainly due to the presence of a network of nano-porosities.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Inorganic Chemistry and Materials · Layered Double Hydroxides Synthesis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (26)
Show source-provided references
1. P. Tabary, Etude du diagramme de phase Al2O3–AlN (A study of the Al2O3–AlN phase diagram), Ph.D. thesis, Paris XI, Orsay, 1997, pp. 120.
2. Characteristics of new raw material AlON for refractories
3. Microhardness of mullite at temperatures to 1000°C10.1111/j.1151-2916.1989.tb06316.x ↗
4. J.W. MacCauley, Structure and Properties of Aluminum Nitride and AlON Ceramics, US Army Research Lab Aberdeen Proving Ground MD Weapons and Materials Research Directorate, 2002, pp. 20.
5. Sur la formation à hautes températures de spinelles non stochiométriques et de phases dérivées (On the high temperature formation of non stoechiometric spinels and derived phases)
6. Luminescence in the system Al2O3–AlN10.1149/1.2425234 ↗
7. T. Sakai, Hot-pressed oxynitrides in the system AlN–Al2O3, in: D. Kolar, S. Pejovnik, M.M. Ristic (Eds.), Sintering – Theory and Practice, Materials Science Monographs, Elsevier, Amsterdam, 1982, pp. 591.
8. Al10N8O3 and Al9N7O3, two new repeated-layer structures in he Al2O3 system10.1107/S0567740879009080 ↗
9. Contribution à l’étude de phénomènes d’ordonnancement de défauts dans des monocristaux de matériaux réfractaires à base d’alumine et de zircone (A contribution to the study of defects organisation in monocristals of alumina and zirconia based refractories)
10. Bassoul · Mater. Res. Bull. · 1976 · 11 · 1110.1016/0025-5408(76)90207-5 ↗
11. J.W. MacCauley, N.D. Corbin, High temperature reactions and microstructures in the Al2O3–AlN system, in: F.L. Riley (Ed.), Progress in Nitrogen Ceramics, Proc. NATO Adv. Study Institute on Nitrogen Ceramics, held at Univ. of Sussex, 27 July to 7 August, 1981, Martinus Nijhoff, Boston, 1983, pp. 111–118.10.1007/978-94-009-6851-6_8 ↗
12. Contribution à l’étude du système Al/O/N. I-Réactivité de l’oxynitrure d’aluminium”(A contribution to the study of the Al/O/N system, I – aluminum oxynitride reactivity)10.1016/0390-6035(76)90010-9 ↗
13. Contribution à l’étude du système Al/O/N. II: Rétention d’azote dans les produits d’oxydation de l’oxynitrure d’aluminium (A contribution to the study of the Al/O/N system, II – nitrogen retention in the oxydation products of aluminum oxynitride)10.1016/0390-6035(81)90046-8 ↗
14. D. Goeuriot, Réactivité, frittage et caractérisation des céramiques dans les systèmes alumine-oxynitrure d’aluminium gamma et nitrure de bore (Reactivity, sintering and characterisation of the gamma aluminum oxynitride–boron nitride ceramic systems), Ph.D. thesis, Lyon, Université Claude Bernard – Lyon I, 1987, pp. 319.
15. Oxydation de l’oxynitrure d’aluminium pulvérulent dans l’oxygène au-dessus de 1100°C (Oxydation of aluminum oxynitride powders in oxygen above 1100°C)
16. On the thermal stability and oxidation behaviour of aluminum oxynitride (AlON) powder
17. Kinetic studies of the oxidation of γ-aluminum oxynitride10.1007/s11663-002-0005-6 ↗
18. D. Dubots, P. Faure, Direct nitridation process of metals having a low melting point, European Patent EP 0494 129G, 1992.
19. E. Xolin, Etude de propriétés physiques et mécaniques de matériaux granulaires cohésifs: application aux meules abrasives à liants vitreux, Ph.D. thesis, INSA-Lyon, 2005, pp. 198.
20. Reaktionen im festen Zustande bei hoheren Temperaturen (Reactions in solid state at high temperature)10.1002/zaac.19271630102 ↗
21. Concerning the diffusion kinetics of reactions in spherical particles
22. Kinetic model for solid-state reactions10.1063/1.1731812 ↗
23. Numerical data for some commonly used solid state reaction equations10.1111/j.1151-2916.1966.tb13289.x ↗
24. The thermal decomposition of NaBrO3. Part I unirradiated material10.1016/0022-3697(63)90042-8 ↗
25. A generalized equation of chemical kinetics and its application in reactions involving solids
26. Suitability of the kinetic model for estimation of powder reaction rate10.1016/S0032-5910(98)00048-5 ↗