High-density barium titanate of high permittivity

US6905649B2 · kind B2 · utility

Assignee

• The Regents of the University of California · US

Inventors

• Guodong Zhan · Spring, US
• Amiya K. Mukherjee · Davis, US
• Joshua D. Kuntz · Livermore, US
• Julin Wan · Rexford, US

Key dates

• Filing date: Apr 11, 2003
• Grant date: Jun 14, 2005
• Expiry date: Dec 23, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2235/785
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A nano-sized powder of barium titanate is compacted and sintered by spark plasma sintering under conditions creating a high heating rate to achieve a densified material that demonstrates superior permittivity.