Precursor material for additive manufacturing of low-density, high-porosity ceramic parts and methods of producing the same

US10532953B2 · kind B2 · utility

Assignee

• The Boeing Company · US

Inventors

• Randall Schubert · Santa Monica, US
• Brennan Yahata · Los Angeles, US
• Joanna A. Kolodziejska · Pasadena, US
• Stephen Lehman · Golden Eagle, US
• Vann Heng · Buena Park, US

Key dates

• Filing date: Jun 20, 2018
• Grant date: Jan 14, 2020
• Expiry date: Jun 20, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2235/77
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A precursor material is provided for additive manufacturing of a low-density, high-porosity ceramic part. The precursor material includes a body of refractory fibers and a binder in admixture with the body of refractory fibers. The precursor material further includes a viscosity control additive in admixture with the binder and the body of refractory fibers to provide an overall mixture with a viscosity between about 0.3 centipoise and about 150,000 centipoise.