Piezo-electric ceramic fibre extrusion
The extruded fibres after sintering have dia. around 1 mm. and densification values 97% of theory, being of potential use as ultra-sonic transducers. Incorporation of a colloid processed by the sol-gel method, of chemical compsn. analogous to the ceramic precursor, allows extrusion and agglomeration...
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Zusammenfassung: | The extruded fibres after sintering have dia. around 1 mm. and densification values 97% of theory, being of potential use as ultra-sonic transducers. Incorporation of a colloid processed by the sol-gel method, of chemical compsn. analogous to the ceramic precursor, allows extrusion and agglomeration to levels suitable for extrusion without contamination by extraneous agents. The reactive nature of the gel markedly assists sintering.
The extruded fibres after sintering have dia. around 1 mm. and densification values 97% of theory, being of potential use as ultra-sonic transducers. Incorporation of a colloid processed by the sol-gel method, of chemical compsn. analogous to the ceramic precursor, allows extrusion and agglomeration to levels suitable for extrusion without contamination by extraneous agents. The reactive nature of the gel markedly assists sintering. (Machine-translation by Google Translate, not legally binding)
PROCEDIMIENTO Y CELULA DE MOLDEO DE FABRICACION DE FIBRAS CERAMICAS PIEZOELECTRICAS DE TITANATO DE PLOMO MODIFICADO MOLDEADAS POR EXTRUSION. EN LA PRESENTE PATENTE DE INVENCION SE EXPONE UN PROCEDIMIENTO DE FABRICACION DE FIBRAS CERAMICAS MEDIANTE MOLDEO POR EXTRUSION QUE, DESPUES DE SINTERIZADAS, PRESENTAN DIAMETRO DE 6,1 MM Y VALORES DE DENSIFICACION DEL 97% RESPECTO AL VALOR TEORICO. LA INCORPORACION DE UN COLOIDE, PROCESADO MEDIANTE SOL-GEL DE COMPOSICION QUIMICA ANALOGA AL PRECURSOR CERAMICO, PERMITE QUE LA MEZCLA SIN CONTAMINACION DE AGENTES EXTRAÑOS EXTRUSIONE Y AGLOMERE HASTA NIVELES ADECUADOS PARA SU MOLDEO. LA NATURALEZA REACTIVA DE ESTE GEL FACILITA MUY NOTABLEMENTE LOS MECANISMOS DE SINTERIZACION. POLARIZADAS ESTAS FIBRAS ADECUADAMENTE, PROPORCIONAN UN MATERIAL, DENTRO DE LOS DENOMINADOS TITANATOS DE PLOMO MODIFICADO, CON MUY INTERESANTES PROPIEDADES PIEZOELECTRICAS, PARA SU POSIBLE UTILIZACION COMO TRANSDUCTORES ULTRASONICOS EN MODERNAS TECNOLOGIAS. |
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