SILICA-SURFACE MODIFIED ALPHA-ALUMINA WHISKERS AND USES THEREOF

The present invention relates to silica-surface modified alpha-Alpha1203 whiskers and the method for preparing them. The alpha-Alpha1203 whiskers are prepared previously by vapor- liquid-solid deposition (VLS). The invention also relates the use of said whiskers as reinforcing fiber material for the...

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Bibliographische Detailangaben
Hauptverfasser:	VALCARCEL JUAREZ, VICTOR, GUITIAN RIVERA, FRANCISCO, CERECEDO FERNANDEZ, CARMEN
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON DYES INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS INORGANIC CHEMISTRY METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS POLISHES PREPARATION OF CARBON BLACK THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	The present invention relates to silica-surface modified alpha-Alpha1203 whiskers and the method for preparing them. The alpha-Alpha1203 whiskers are prepared previously by vapor- liquid-solid deposition (VLS). The invention also relates the use of said whiskers as reinforcing fiber material for the preparation of composites having the resulting composites superior flexural properties and thermal stability. The invention further related to a shaped article comprising said composites as defined above, as well as the use of them for application comprising construction, aeronautic, automotive, defense, optical, food or medical sectors. L'invention concerne des filaments d'alpha-Alphal2O3 superficiellement modifiée par de la silice, et le procédé d'élaboration correspondant. Les filaments d'alpha-Alphal2O3 sont élaborés préalablement par dépôt en phases vapeur-liquide-solide. L'invention concerne également l'utilisation de ces filaments en tant que fibres de renforcement pour l'élaboration de composites se distinguant, non seulement par des propriétés supérieures de flexion des composites résultants, mais aussi par leur stabilité thermique. L'invention concerne aussi un article formé comprenant les composites de l'invention, et l'utilisation de ces composites pour des applications dans les domaines de la construction, de l'aéronautique, de l'automobile, de la défense, de l'optique, de l'alimentaire, et de la médecine.