Transactions of the INDIAN CERAMIC SOCIETY Vol. 35 1976
Control of Fishscaling 1n Enamelling
A New Technique
D. P. NIYOGI
Pages : 68-70
DOI : 10.1080/0371750X.1976.10840860
Abstract
The enamel industry is often confronted with
the problem of fishscaling, i.e. spontaneous popping
up of small chips of enamel in the shape of
half moon. The factors leading to formation of
this defect were the subjects of numerous investigations
and it has now been generally accepted
that the cause of fishscaling lies in the formation
of gases at the metal-enamel interfacc. 1- 4 The
gases commonly encountered are carbon dioxide,
carbon monoxide, water vapour and hydrogen.l
If these gases are allowed to accumulate at the
interface, a pressure1•5- 8 builds up till it is
released through formation of fish scales.
