Composite material containing a fibre reinforced vitroceramic matrix and a method of making the same

US6034012A · kind A · utility

Assignees

• Societe Nationale d'Etude et de Construction de Moteurs d'Aviation - S.N.E.C.M.A · FR
• OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AÉROSPATIALES · FR

Inventors

• Gerard Philippe Gauthier · Saint-Michel-sur-Orge, FR
• Yves Emile Marie Ange Laurent · Cesson-Sévigné, FR
• Susanne Obradovic · Massy, FR
• Olivier H. Sudre · Thousand Oaks, US
• Patrick Verdier · Acigné, FR

Key dates

• Filing date: Jul 17, 1997
• Grant date: Mar 7, 2000
• Expiry date: Jul 17, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C03C14/002
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Composite material comprising a CAS+BAS vitroceramic matrix reinforced with SiC fibers and exhibiting a small difference between the thermal expansion coefficients of the matrix and the fibers is obtained by using a matrix having a BaO/(BaO+CaO) molar ratio of between 25% and 55% and predominant phases of triclinic anorthite and monoclinic celsian.