Core-shell ceramic particulate and method of making

US7670679B2 · kind B2 · utility

Assignee

• General Electric Company · US

Inventors

• Kalaga Murali Krishna · Bengaluru, IN
• James Anthony Ruud · Delmar, US
• Geetha Karavoor · Thrissur, IN
• Balachandar Ramadurai · Bengaluru, IN
• Mohan Manoharan · Bengaluru, IN

Key dates

• Filing date: May 30, 2006
• Grant date: Mar 2, 2010
• Expiry date: May 10, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2998
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A core-shell ceramic particulate is provided. The core-shell ceramic particulate comprises a core particulate structure comprising a plurality of primary particulates and a plurality of primary pores; and a shell at least partially enclosing the core particulate structure. Each of the primary particulates comprises a plurality of secondary particulates and a plurality of secondary pores; and the shell comprises a plurality of tertiary particulates and a plurality of tertiary pores. A method of making a core-shell ceramic particulate is provided. The method comprises the steps of providing a core particulate structure comprising a plurality of primary particulates and a plurality of primary pores wherein each primary particulate comprises a plurality of secondary particulates and a plurality of secondary pores; and disposing a shell comprising a plurality of tertiary particulates and a plurality of tertiary pores onto the core particulate structure.