RELATION BETWEEN COMPOSITION, MICROSTRUCTURE AND CUTTING TOOL PERFORMANCE OF ALPHA-BETA-SiALONs
- 1 February 1986
- journal article
- Published by EDP Sciences in Le Journal de Physique Colloques
- Vol. 47 (C1) , C1-347
- https://doi.org/10.1051/jphyscol:1986151
Abstract
Based on silicon nitride, sialon materials have been made, which exhibit very promising properties. By using yttria as sintering aid and by changing the overall composition sintered materials with different amounts of α-sialon phase and β-sialon phase can be formed. In order to obtain dense structures also with low Al and Y content "sinter-HIP" techniques have been used. It is shown how the properties of sialon materials as well as the metal cutting performance in cast iron and heat resistant alloys are dependent on microstructure and phase compositioKeywords
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