Silicoboroncarbonitride ceramics and precursor compounds, method for the production and use thereof

US7297649B2 · kind B2 · utility

Assignee

• Max-Planck-Gesellschaft zur Föderung der Wissenschaften e.V. · US

Inventors

• Martin Jansen · Bonn, DE
• Utz Müller · Bonn, DE
• Jurgen Clade · Coburg, DE
• Dieter Sporn · Würzburg, DE

Key dates

• Filing date: Sep 14, 2001
• Grant date: Nov 20, 2007
• Expiry date: Feb 11, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2235/6022
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present invention relates to novel alkylhalosilylaminoboranes, in particular alkylchlorosilylaminoboranes, which make it possible to adjust the viscosity of polyborosilazane compounds by varying the number of reactive centers, to novel borosilazane compounds, to novel oligoborosilazane or polyborosilazane compounds which have the structural feature R1—Si—NH—B—R2, where R1 or R2 or both is/are a hydrocarbon radical having from 1 to 20 carbon atoms, in particular an alkyl, phenyl or vinyl group, to silicon borocarbonitride ceramic powder, to ceramic material based on SiC, SiN and BN and to processes for producing each of these and to the use of the polyborosilazanes and the ceramic materials.