Methods of using boron-containing additives as silicon carbide crosslinking agents

US9359479B2 · kind B2 · utility

Assignee

• General Electric Company · US

Inventors

• Slawomir Rubinsztajn · Schenectady, US
• Matthew Hal Littlejohn · Freeport, US
• Ryan Christopher Mills · Niskayuna, US
• Peter Kennedy Davis · Niskayuna, US

Key dates

• Filing date: May 30, 2013
• Grant date: Jun 7, 2016
• Expiry date: Jun 22, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2235/9661
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present disclosure generally relates to methods of using boron-containing additives for crosslinking polysilazane green fibers, which are precursors to silicon carbide fibers. These methods provide a controllable process for crosslinking silicon carbide fibers while providing a simple way for the introduction of boron as a sintering aid into the polymer structure.