METHOD OF MANUFACTURING CRYSTALLIZED GLASS FOR INFORMATION RECORDING DISK

PROBLEM TO BE SOLVED: To provide a crystallized glass maintaining high rigidity (>130 GPs) suitable as a substrate for an information recording medium such as a magnetic recording medium, and excellent in surface smoothness and flatness, namely with the surface roughness Ra controlled to

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Bibliographische Detailangaben
1. Verfasser:	SUU GAKUROKU
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY GLASS INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER JOINING GLASS TO GLASS OR OTHER MATERIALS MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES METALLURGY MINERAL OR SLAG WOOL PHYSICS SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a crystallized glass maintaining high rigidity (>130 GPs) suitable as a substrate for an information recording medium such as a magnetic recording medium, and excellent in surface smoothness and flatness, namely with the surface roughness Ra controlled to