Iron nitride powders for use in magnetic, electromagnetic, and microelectronic devices

US8535634B2 · kind B2 · utility

Assignee

• Advanced Materials Corporation · TW

Inventors

• Suryanarayan G. Sankar · Via Enrico Fermi, US
• Satoru Simizu · Pittsburgh, US
• Brian J. Zande · Pittsburgh, US
• Richard T. Obermyer · Delmont, US

Key dates

• Filing date: May 5, 2008
• Grant date: Sep 17, 2013
• Expiry date: Jan 3, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/25
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method of making iron nitride powder is provided. The method comprises the steps of: a) providing an iron-based starting material; b) reducing the starting material by heating the starting material in a fluidized bed reactor in the presence of a reducing agent; c) nitriding the material obtained from step (b) by contacting the material with a nitrogen source. Also provided is the iron nitride powder made by the above method.