18736100. HIGH STRENGTH GLASS-CERAMICS simplified abstract (CORNING INCORPORATED)
Contents
HIGH STRENGTH GLASS-CERAMICS
Organization Name
Inventor(s)
George Halsey Beall of Big Flats NY (US)
Qiang Fu of Painted Post NY (US)
Charlene Marie Smith of Corning NY (US)
HIGH STRENGTH GLASS-CERAMICS - A simplified explanation of the abstract
This abstract first appeared for US patent application 18736100 titled 'HIGH STRENGTH GLASS-CERAMICS
The glass-ceramic article described in the patent application contains specific oxide components in certain weight percentages, including SiO2, Al2O3, Li2O, PO5, and ZrO2.
- SiO2 is present in an amount between 55 wt % to 80 wt %.
- Al2O3 is present in an amount between 2 wt % to 20 wt %.
- Li2O is present in an amount between 5 wt % to 20 wt %.
- PO5 is present in an amount between 0 wt % to 6 wt %.
- ZrO2 is present in an amount between 0.2 wt % to 15 wt %.
- The sum of ZrO2 and PO5 is greater than or equal to 3 wt %.
- The glass-ceramic article contains a lithium disilicate (LiSiO2) crystalline phase, comprising between 40 wt % to 60 wt % of the article.
Potential Applications: - Dental restorations - High-temperature resistant components - Optical devices
Problems Solved: - Improved mechanical strength - Enhanced chemical durability - Tailored thermal expansion properties
Benefits: - Increased performance in harsh environments - Versatile applications in various industries - Long-lasting and durable material
Commercial Applications: - Manufacturing of dental crowns and bridges - Production of cookware and kitchen appliances - Development of high-performance optical lenses
Questions about the technology: 1. How does the presence of lithium disilicate enhance the properties of the glass-ceramic article? 2. What specific industries can benefit the most from utilizing this innovative material?
Frequently Updated Research: - Ongoing studies on further optimizing the composition of glass-ceramic materials for specific applications.
Original Abstract Submitted
A glass-ceramic article comprises in wt % on an oxide basis SiOin an amount greater than or equal to 55 wt % and less than or equal to 80 wt %, AlOin an amount greater than or equal to 2 wt % and less than or equal to 20 wt %, LiO in an amount greater than or equal to 5 wt % and less than or equal to 20 wt %, POin an amount greater than 0 wt % and less than or equal to 6 wt %, and ZrOin an amount greater than or equal to 0.2 wt % and less than or equal to 15 wt %. A sum of ZrOand POis greater than or equal to 3 wt %. The glass-ceramic article comprises a lithium disilicate (LiSiO) crystalline phase, where the lithium disilicate is between 40 wt % to 60 wt % of the glass-ceramic article.
