| The effect of ambient atmosphere on the sintering of oxides
was studied ever since the flllit experiments on sintering of
aluminium oxide spheres were •:arried out. Several effects of
atmosphere on sintering have been found to be important.
These depend on the nature of interaction, whether physical
or chemical, of the active spedes present in the atmosphere
with the solid undergoing sinteJ:"ing. Atmosphere control of
point defect concentration is touched upon. Atmospheric
effects on technical ceramics are briefly reviewed. Sintering
behaviour of alumina in gaseous atmospheres is analysed on
the basis of such reactions. Microstructure development
during atmosphere resintering Is discussed. |
