Abstract
New lightweight, high‐strength porcelain bodies, using only nonplastic raw materials such as glass microspheres, quartz, and alumina cement, were fabricated and the effect of quartz particle size was investigated. Decreases in the green strength, relative to an increasing content of glass microspheres, were attributed to the decrease in the density and the relative decrease in the volume of alumina cement. The phases in the fired body were glass, α‐quartz, cristobalite, anorthite, and a small amount of α‐alumina. The large quartz particles (10–32 μm in size) could not be densified to closed porosity, because of underfiring, whereas smaller quartz particles (4–10 μm in size) permitted densification to closed porosity at 1300°C. The high flexural strength when using medium‐sized quartz particles (6–20 μm, content of 30 wt%) was attributed to a stronger prestress and higher density that was due to better vitrification.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.