Formulating Glazes for UNP Ceramic Products

Abstract

Thisstudy investigatedon the bestformulation ofrice hull ash (), Wigan clay ()
and DT (D) mixedwith oxide and water that wouldyield betterquality glaze of Wigan
clayproducts. •
Three oxides, namely: copper oxide (CuO), zinc oxide (ZCnO), and calcium
carbonate (CaCO) were usedand I6formulations were made usingeveryoxide. Seventy
fivepercentDTaand 160mlHOwereconstantinall the48differentformulations.
Among the 16 RVD+CuOformulations it was found out that twoformulations
yielded glazedproducts withoutdeficiencies, namely: Cul0 (40-10-75-4 RVD+CuO) and
Cul6(30-20-75-5RVD+CuO).
Among the 16 RVD+ZnOformulations the eightformulations having34%zinc
oxideyieldedglazedproductswithoutdeficiencies.
Among the 16 RVD+CaCO, formulations only two formulations yielded glazed
products without deficiencies, namely: Ca4 (30-30-75-2 RVD+CaCO) and Ca8 (30-20-
75-3RVD+CaCO).