Ceramic material product and method of manufacture

US8262981B2 · kind B2 · utility

Assignee

• Schott AG · DE

Inventors

• John Carberry · Jefferson City, US
• Jennifer Norwood · Central Falls, US
• Katherine Leighton · Media, US
• Kyle Christopher Hoff · Corning, US
• Carl F. Cline · Walnut Creek, US
• Edgar Aleshire · Chesapeake City, US

Key dates

• Filing date: Dec 17, 2007
• Grant date: Sep 11, 2012
• Expiry date: Jun 12, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2235/80
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method for producing a ceramic material product. A filler material is provided. The filler material is divided into filler granules collectively having a median diameter approximately 10 microns or less. An amount of carbon is provided. The carbon is divided into carbon particles and the carbon particles are allowed to coat the filler granules. The mixture of carbon-coated filler granules is formed into a selected shape. The formed mixture is placed in a substantial vacuum. The mixture is introduced to a pre-selected amount of silicon and the mixture of carbon-coated filler granules and silicon is heated to a temperature at or above the melting point of the silicon.