Glaze Development with Application of Unity Molecular Formula

Abstract

Effects of compositions and sintering conditions on glaze properties are shown in the diagram constructed by using the unity molecular formula (UMF) method in this study. Glossy characteristics of glaze were clearly differentiated by compositional area in the diagram and sintering process. As alumina and silica contents were increased, texture of the glaze became rough and opaque, akin to having been devitrified or underfired. The correlation between glossiness and surface roughness was found to be non-linear and inversely proportionate. Crystalline phases formed in the glaze were also influenced by the compositional area. Due to the high concentration of CaO, anorthite and wollastonite were formed depending on the compositions. Hardness was increased with an increase of alumina and silica concentrations in the glaze.

Surface Quality and Corrosion Resistance of 316l Stainless Steel Electropolished Using Phosphoric – Sulfuric Acids

“…Dissolution of the elements produces a more even and smoother surface. This surface reflected the light better than an un-electropolished sample, which subsequently results in better glossiness [19][20][21] . Several works reported that lower surface roughness commonly created better glossiness.…”