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 Owing to solute redistribution by a liquid phase analogue of diffusion-induced grain-boundary migration metastable and anti-phase domain boundary-bearing tetragonal (t′) phase was seen to occur in the cubic (c) matrix grain of sintered (1400 °C, 2 h) and furnace-cooled yttriapartially stabilized zirconia (Y-PSZ) specimens (TZ3Y + 12Y-PSZ in molar ratios of 4:1, 1:1 and 1∶4). In contrast to that formed by rapid cooling, t′-phase formed by slow cooling shows no deformation accommodation twins. Subsequent ageing at 1100 °C for up to 240 h caused the formation of finely tweed (c) and tetragonal (t) assemblages at the expense of coarse tweed t′-phase in the 12Y-PSZ grains. The absence of secondary deformation twins in the t′-phase formed by slow cooling is discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00576040
