DIFFUSION BONDING OF DISSIMILAR CERAMICS

Diffusion bonding of dissimilar ceramics can be accomplished by the application of pressure only while the ceramics are at a temperature at which their expansion rates are the same. A process for manufacturing magnetic head cores is disclosed where a magnetic ferrite is diffusion bonded to a non-mag...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WAIUNG, CHOW WILLIAM, RIGBY, EUGENE BERTRAND
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER LIME, MAGNESIA METALLURGY PHYSICS REFRACTORIES SLAG TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	Diffusion bonding of dissimilar ceramics can be accomplished by the application of pressure only while the ceramics are at a temperature at which their expansion rates are the same. A process for manufacturing magnetic head cores is disclosed where a magnetic ferrite is diffusion bonded to a non-magnetic ceramic by first heating the core pieces to a certain temperature range where the thermal expansion rates of the magnetic ferrite and the non-magnetic ceramic are the same and then applying the diffusion bonding pressure. The pressure is removed either before or after the bonded pieces are cooled.