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 Sm2O3 was used as an additive for ZrO2/O′-sialon composites and showed remarkably good densification behaviour on sintering. Sm2O3 appeared to behave as a densification rather than a stabilization additive and the low eutectic temperature in this system facilitated densification before zircon dissociation. An important advantage is that the final sintering temperature is then determined by the minimum temperature at which full conversion from α-Si3N4 to O′-sialon can be achieved. At this temperature (1500–1550 °C), grain growth of zirconia is minimal, and this allows control of small grain size for the zirconia particles.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00354716
