ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract MgSiAlON 3M/4X liquids have been crystallized at slow cooling rates from the melt and isothermally at varying degrees of undercooling. Forsterite is always the primary crystallizing phase but the secondary phases vary with the degree of undercooling. A magnesium-substitutedβ′-sialon,β″, grows with forsterite via a coupled mechanism at a slow continous cooling rate. However,β″ is progressively replaced as the secondary phase by a petalite-type Mg-Si-Al-O-N phase and a fourth phase on isothermal crystallization at increasing degrees of undercooling. The compositions ofβ″ and Mg-petalite as analysed by energy-dispersive X-ray microanalysis are discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01114721
