The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 01, 2018
Filed:
Nov. 11, 2013
Gerrit Scheich, Seligenstadt, DE;
Christian Schenk, Ingelheim, DE;
Frank Wessely, Dieburg, DE;
Nadine Tscholitsch, Hanau, DE;
Ashur J. Atanos, Buford, GA (US);
Christian Neumann, Hungen, DE;
Stephan Moritz, Alzenau, DE;
Dirk Michel, Erbstadt, DE;
Gerrit Scheich, Seligenstadt, DE;
Christian Schenk, Ingelheim, DE;
Frank Wessely, Dieburg, DE;
Nadine Tscholitsch, Hanau, DE;
Ashur J. Atanos, Buford, GA (US);
Christian Neumann, Hungen, DE;
Stephan Moritz, Alzenau, DE;
Dirk Michel, Erbstadt, DE;
Heraeus Quarzglas GmbH & Co. KG, Hanau, DE;
Heraeus Quartz America LLC, Austin, TX (US);
Abstract
In a known composite material with a fused silica matrix there are regions of silicon-containing phase embedded. In order to provide a composite material which is suitable for producing components for use in high-temperature processes for heat treatment even when exacting requirements are imposed on impermeability to gas and on purity, it is proposed in accordance with the invention that the composite material be impervious to gas, have a closed porosity of less than 0.5% and a specific density of at least 2.19 g/cm, and at a temperature of 1000° C. have a spectral emissivity of at least 0.7 for wavelengths between 2 and 8 μm.