Kinetic Studies on Sintering of BeO |
R. BHAT, N.c. SONI, ASHOK MOHAN AND
V. K. MOORTHY
Pages : 120-126
DOI : 10.1080/0371750X.1980.10840733 |
Abstract |
Considerable work has been done on determining the effects
of sintering variables and powder properties on sintering
behaviour of BeO. However, there is little to be found in
literature on the effect of these variables on the activation
energy of sintering.
The usual approach to determining the sintering mechanism
has been to establish it on the basis of the activation
energy of sintering. It has been reported that factors like
purity, green density, porosity, density range, temperature
range etc can be shown to wield influence on the value of
activation energy.
Since the possibility of more than one mechanism operating
under a set of conditions cannot be ruled out, there is
confusion in establishing the operative mechanism (s).
Especially, as there is considerable variation in the reported
values of activation energy. The situation is even more unsatisfactory
when sintering is considered over a wide range
of variables, iD wbich the operative mechanisms are likely
to change. |
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