A Study of Nucleation and Growth in Zinc Crystal Glaze by Firing Conditions

The thermal and microstructural behavior of a R2O–RO–(ZnO)–Al2O3–(TiO2)–SiO2 based macro-crystalline raw glaze system

“…Its unmatured surface is related to the high levels of Al 2 O 3 and SiO 2 . Depending on the type of compositions and clay bodies, the gloss firing temperatures of crystalline glazes can vary from 1250 to 1300 1C [6,7,11,12,[17][18][19][20]. In contrast with previous studies, R 2 O-RO-(ZnO)-Al 2 O 3 -(TiO 2 )-SiO 2 system raw macro-crystal glazes were successfully developed at a relatively low maximum firing temperature of 1205 1C, promising a time consuming and cost effective production.…”

“…In the literature, many studies have been conducted on nucleation and crystallization of ZnO containing crystalline glazes, but generally for fritted compositions or high firing temperatures [6,7,11,12,17,19,20]. Moreover, a comparative study of the effect of TiO 2 both as a nucleating agent and a major crystallite in macrocrystalline glazes has not been evaluated in terms of thermal behavior, viscosity, and microstructure [14][15][16].…”

Effects of Nucleating Seeds on Coloring of Zn₂SiO₄ Crystal Glazes

“…Motivated by this result, a preceding study adopted ZnO as the main ingredient of the synthesized seed. 6) The goal of this study is deliberately controlling the nucleation and development of Zn 2 SiO 4 crystals in a glaze by using synthesized seeds instead of the commonly-used TiO 2 seeds. Incorporating with various coloring agents, the prepared seed can nucleate, enhance the growth, and develop colors at the intended spots.…”

“…Separately from the glaze preparation, a base seed ZS was synthesized by adding SiO 2 into ZnO. 6) Coloring seeds were prepared by adding MnO 2 , Fe 2 O 3 , and NiO into the base seed. Fig.…”

The Effect of Nucleating Agent on Zn2SiO4Crystal Glaze

“…4,6) 동정되었다.TiO 2 의 첨가에 따라 willemite 결정면이 발달하여 표면에서 측정되는 XRD의 강도가 다르게 나타났다. 문헌에 의하면 diopside 구조 안에 서 일부 Zn 2+ 는 Ti 4+ 이온에 지원되어 의도적으로 willemite 결정을 형성하는데 공급되며, 이러한 결과는 XRD 측정 강도에 차이를 보이는 것으로 9) 설명하였다.…”