Densification of Al2O3-SiO2-TiO 2-based ceramic coating film by grain size control

Y. Muroya, K. Shimanoe, Y. Teraoka, N. Yamazoe, Y. Haruta

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The densification of a ceramic coating based on SiO2-Al 2O3-TiO2 by using wet processing was investigated by controlling grain size of materials used, By means of ball-milling method, grain of materials in coating slurry was reduced from initial size of 10μm to less than Sum in diameter, Ceramic composite films (about 100 urn thick) thus prepared were deposited on a steel plate by slurry coating with a doctor blade, followed by drying and calcinations in air, It was found that the coating prepared was stable to heating up to 800°C in air, and that, however, the use of too small grains was easy to cause cracks on the surface, By optimizing the amount of alkali silicate, however, such cracks could be eliminated and also the number of through-holes of the coating could decrease drastically, The ceramic coating obtained by both the control of grain size in powders and the optimal addition of the alkali silicate showed excellent densification and thermal stabilities.

Original languageEnglish
Title of host publicationDevelopments and Applications of Advanced Engineering Ceramics and Composites - Proceedings of the 6th Pacific Rim Conference on Ceramic and Glass Technology, PacRim6
Number of pages11
Publication statusPublished - 2006
Event6th Pacific Rim Conference on Ceramic and Glass Technology, PacRim6 - Maui, HI, United States
Duration: Sep 11 2005Sep 16 2005

Publication series

NameCeramic Transactions
ISSN (Print)1042-1122


Other6th Pacific Rim Conference on Ceramic and Glass Technology, PacRim6
Country/TerritoryUnited States
CityMaui, HI

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry


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