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 The factors governing the existence of metastable cubic and tetragonal phases in zirconia powders are still controversial. In order to elucidate this question, the effects of calcination temperature on ultrafine powders prepared from different precursors by different low-temperature chemical routes were studied. The morphological and structural characteristics of the powders depending on the calcination temperature were determined by means of conventional and high-resolution transmission electron microscopy (CTEM and HREM) and X-ray diffraction methods (whole and peak profile fitting procedures). Important structural differences between the powders depending on the precursor were revealed by HREM. The presence of impurities and/or microstrains seems to play a major role in the stabilization of the cubic and the tetragonal phases.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00576306
Permalink