Premium
Toughening of hot pressed beta‐alumina using zirconia additions prepared from zirconate, tartrate and carbonate precursor materials
Author(s) -
Binner J. G. P.,
Stevens R.,
Tan S. R.
Publication year - 1985
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/j.1365-2818.1985.tb02674.x
Subject(s) - cubic zirconia , materials science , tetragonal crystal system , fabrication , chemical engineering , toughness , phase (matter) , composite material , mineralogy , chemistry , ceramic , organic chemistry , medicine , alternative medicine , pathology , engineering
SUMMARY The development of second phase zirconia precipitates in a beta‐alumina matrix has been achieved using chemical reactions which occur during the firing process. The degree of success of each of several fabrication routes has been evaluated by use of toughness measurements and electron microscopy techniques. Approximately half of the routes yielded ∼90% retention of tetragonal zirconia, resulting in an approximate doubling of the Mode 1 critical stress intensity factor ( K 1c ).