Phase separation behavior and coloring of coating glasses for sanitary ware

Yoshikazu Tomioka, Sohei Sukenaga, Noritaka Saito, Kunihiko Nakashima

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

We investigated the phase separation behavior of multi-component oxide glasses for coating layer of sanitary wares, and the holding time dependence of the microstructure and the coloring nature of phase separated glasses. Two kinds of multi-component silicate glasses (CaO-SiO2-Al2O 3-MgO-ZnO-K2O-Na2O system) were employed, which had different CaO/SiO2 ratio. Glass A has higher CaO/SiO2 ratio, and glass B has lower CaO/SiO2. Quenched glasses that were pre-melted at 1550 °C for 90 min in advance, were isothermally held at 800∼1100 °C for 0.5∼2 h by the hot-thermocouple. The microstructure of phase-separated glass was observed by using FE-SEM on the polished section. It was found that the glass A and B heat-treated at given temperatures indicated a spinodal and a binodal type phase separation, respectively. Moreover, the glass A was found to have the larger microstructure of phase separation, which caused whitish color. In contrast, the glass B revealed the finer binodal phase separation that resulted in a bluish phase separated glass.

Original languageEnglish
Article number112021
JournalIOP Conference Series: Materials Science and Engineering
Volume18
Issue numberSYMPOSIUM 8
DOIs
Publication statusPublished - Aug 31 2011
Event3rd International Congress on Ceramics, ICC3 - Osaka, Japan
Duration: Nov 14 2010Nov 18 2010

Fingerprint

Coloring
Phase separation
Glass
Coatings
Microstructure
Silicates
Thermocouples
Oxides
Color
Scanning electron microscopy

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)

Cite this

Phase separation behavior and coloring of coating glasses for sanitary ware. / Tomioka, Yoshikazu; Sukenaga, Sohei; Saito, Noritaka; Nakashima, Kunihiko.

In: IOP Conference Series: Materials Science and Engineering, Vol. 18, No. SYMPOSIUM 8, 112021, 31.08.2011.

Research output: Contribution to journalConference article

@article{f0798300c6264be0a97c7c8b2a49412f,
title = "Phase separation behavior and coloring of coating glasses for sanitary ware",
abstract = "We investigated the phase separation behavior of multi-component oxide glasses for coating layer of sanitary wares, and the holding time dependence of the microstructure and the coloring nature of phase separated glasses. Two kinds of multi-component silicate glasses (CaO-SiO2-Al2O 3-MgO-ZnO-K2O-Na2O system) were employed, which had different CaO/SiO2 ratio. Glass A has higher CaO/SiO2 ratio, and glass B has lower CaO/SiO2. Quenched glasses that were pre-melted at 1550 °C for 90 min in advance, were isothermally held at 800∼1100 °C for 0.5∼2 h by the hot-thermocouple. The microstructure of phase-separated glass was observed by using FE-SEM on the polished section. It was found that the glass A and B heat-treated at given temperatures indicated a spinodal and a binodal type phase separation, respectively. Moreover, the glass A was found to have the larger microstructure of phase separation, which caused whitish color. In contrast, the glass B revealed the finer binodal phase separation that resulted in a bluish phase separated glass.",
author = "Yoshikazu Tomioka and Sohei Sukenaga and Noritaka Saito and Kunihiko Nakashima",
year = "2011",
month = "8",
day = "31",
doi = "10.1088/1757-899X/18/11/112021",
language = "English",
volume = "18",
journal = "IOP Conference Series: Materials Science and Engineering",
issn = "1757-8981",
publisher = "IOP Publishing Ltd.",
number = "SYMPOSIUM 8",

}

TY - JOUR

T1 - Phase separation behavior and coloring of coating glasses for sanitary ware

AU - Tomioka, Yoshikazu

AU - Sukenaga, Sohei

AU - Saito, Noritaka

AU - Nakashima, Kunihiko

PY - 2011/8/31

Y1 - 2011/8/31

N2 - We investigated the phase separation behavior of multi-component oxide glasses for coating layer of sanitary wares, and the holding time dependence of the microstructure and the coloring nature of phase separated glasses. Two kinds of multi-component silicate glasses (CaO-SiO2-Al2O 3-MgO-ZnO-K2O-Na2O system) were employed, which had different CaO/SiO2 ratio. Glass A has higher CaO/SiO2 ratio, and glass B has lower CaO/SiO2. Quenched glasses that were pre-melted at 1550 °C for 90 min in advance, were isothermally held at 800∼1100 °C for 0.5∼2 h by the hot-thermocouple. The microstructure of phase-separated glass was observed by using FE-SEM on the polished section. It was found that the glass A and B heat-treated at given temperatures indicated a spinodal and a binodal type phase separation, respectively. Moreover, the glass A was found to have the larger microstructure of phase separation, which caused whitish color. In contrast, the glass B revealed the finer binodal phase separation that resulted in a bluish phase separated glass.

AB - We investigated the phase separation behavior of multi-component oxide glasses for coating layer of sanitary wares, and the holding time dependence of the microstructure and the coloring nature of phase separated glasses. Two kinds of multi-component silicate glasses (CaO-SiO2-Al2O 3-MgO-ZnO-K2O-Na2O system) were employed, which had different CaO/SiO2 ratio. Glass A has higher CaO/SiO2 ratio, and glass B has lower CaO/SiO2. Quenched glasses that were pre-melted at 1550 °C for 90 min in advance, were isothermally held at 800∼1100 °C for 0.5∼2 h by the hot-thermocouple. The microstructure of phase-separated glass was observed by using FE-SEM on the polished section. It was found that the glass A and B heat-treated at given temperatures indicated a spinodal and a binodal type phase separation, respectively. Moreover, the glass A was found to have the larger microstructure of phase separation, which caused whitish color. In contrast, the glass B revealed the finer binodal phase separation that resulted in a bluish phase separated glass.

UR - http://www.scopus.com/inward/record.url?scp=80052097396&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80052097396&partnerID=8YFLogxK

U2 - 10.1088/1757-899X/18/11/112021

DO - 10.1088/1757-899X/18/11/112021

M3 - Conference article

VL - 18

JO - IOP Conference Series: Materials Science and Engineering

JF - IOP Conference Series: Materials Science and Engineering

SN - 1757-8981

IS - SYMPOSIUM 8

M1 - 112021

ER -