Ceramic or glass-ceramic article and methods for producing such article

US9556525B2 · kind B2 · utility

Assignees

• BEGO BREMER GOLDSCHLÄGEREI WILH. HERBST GMBH & CO. KG · DE
• Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO · NL
• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

• Stephan Dierkes · Bremen, DE
• Anne Jans Faber · Veldhoven, NL
• Jan Wilkes · Stade, DE
• Mark P. M. Welters · Venlo, NL
• Wilhelm Meiners · Aachen, DE
• Konrad Wissenbach · Würselen, DE

Key dates

• Filing date: Aug 10, 2010
• Grant date: Jan 31, 2017
• Expiry date: Dec 26, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2982
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The present invention relates to a method of producing a (shaped) ceramic or glass-ceramic article, involving the steps of: (a) providing a powder or a powder mixture comprising ceramic or glass-ceramic material, (b) depositing a layer of said powder or powder mixture on a surface, (d) heating at least one region of said layer by means of an energy beam or a plurality of energy beams to a maximum temperature such that at least a part of said ceramic or glass-ceramic material in said at least one region is melted and (e) cooling said at least one region of said layer so that at least part of the material melted in step (d) is solidified, such that the layer is joined with said surface in said at least one region. The invention also relates to ceramic or glass-ceramic articles and their use.