Precursor material for additive manufacturing of low-density, high-porosity ceramic parts and methods of producing the same
US10029949B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2016 |
| Grant date | Jul 24, 2018 |
| Priority date | — |
| Expiry date | Oct 24, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/77
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A precursor material is provided for additive manufacturing of a low-density, high-porosity ceramic part. The precursor material comprises a body of refractory fibers and a binder in admixture with the body of refractory fibers. The precursor material further comprises 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. The overall mixture can be extruded through a nozzle to manufacture the low-density, high porosity ceramic part. The precursor material is produced by obtaining a refractory fiber slurry, and adding a viscosity control additive to the slurry to provide the slurry with a viscosity that is suitable for extrusion through a nozzle to manufacture a low-density, high-porosity ceramic part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.