Sinterable and/or fusible ceramic mass, production and use thereof

US9662215B2 · kind B2 · utility

Assignee

• BUNDESREPUBLIK DEUTSCHLAND, VERTRETEN DURCH DAS BUNDESMINSITERIUM FÜR WIRTSCHAFT UND ENERGIE, DIESES VERTRETEN DURCH DEN PRÄSIDENTEN DER BAM, BUNDESANSTALT FÜR MATERIALFORSCHUNG UND -PRÜFUNG · DE

Inventors

• Georg Berger · Panketal, DE
• Andrea Spitzer · Berlin, DE
• Dagmar Nicolaides · Teltow, DE
• Jens Guenster · Clausthal-Zellerfeld, DE
• Heidi Marx · Berlin, DE

Key dates

• Filing date: Feb 12, 2014
• Grant date: May 30, 2017
• Expiry date: Feb 12, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2235/96
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A sinterable and/or fusible ceramic mass is disclosed, having a long-term stable compound of crystalline phases of apatite, wollastonite, titanite and optionally cristobalite, which is stabilized by a glass phase, and a production process therefor. The ceramic mass can be obtained by sintering a mixture comprising at least the constituents SiO2, CaO, P2O5, MgO, CaF2 and TiO2, on their own or in combination with at least one alkali oxide, the alkali oxide being chosen from NaO2 and K2O. The invention further relates to uses of the sintered material in the form of shaped articles for strengthening, cleaning, roughening or polishing surfaces of medical implants or as a final prosthesis.