Ivoclar Vivadent Ag

Centre National De La Recherche Scientifique

Universite Claude Bernard – Lyon1

Politecnico Di Torino

Institut National Des Sciences Appliquees De Lyon

Decoram Medical Ceramica Cmbh

Jerome Chevalier

Christian Ritzberger

Frank Rothbrust

Helen Reveron

Volker Rheinberger

Wolfram Höland

Dmitri G Brodkin

Elke Apel

Elke Signer-Apel

Ricardo Dellagiacomo

Nicolas Courtois

Heinrich Kappert

Laura Montanaro

Paola Palmero

Tobias Fuerderer

A process is described, for producing zirconia-based multi-phasic ceramic composite materials, comprising the steps of: providing at least one ceramic suspension by dispersing at least one ceramic zirconia powder in at least one aqueous medium to obtain at least one matrix for such composite material; providing at least one aqueous solution containing one or more inorganic precursors and adding such aqueous solution to such ceramic suspension to surface modify such ceramic zirconia powder and obtain at least one additived suspension; quickly drying such additived suspension to obtain at least one additived powder; heat treating such additived powder to obtain at least one zirconia powder coated on its surface by second phases; and forming such zirconia powder coated on its surface by second phases.

Process for producing zirconia-based multi-phasic ceramic composites

The invention relates to a composite ceramic material which comprises: The invention also relates to a ceramic powder composition, processes for the preparation of the composite ceramic material and the ceramic powder composition as well as uses thereof.

Composite ceramic material comprising zirconia

The invention relates to compositions based on Ce-stabilized ZrO, and single- and multi-colored blanks made from oxide ceramics, and a process for their preparation, in which oxide ceramic powder is coated with a coloring substance, the coated powders are preferably graded and at least one colored powder is filled into a compression mould, the colored powder or powders are compressed to produce a shaped body, and the compressed shaped body is sintered to produce a blank, and to the use of these blanks for the preparation of dental restorations. The compositions exhibit high fracture toughness and high flexural strength.

Shaded zirconia ceramics

Growing community of inventors

Rillieu-la Pape, France

Jerome Chevalier