PROCESS FOR SYNTHESIZING FIBROUS DIAMOND

PURPOSE:To deposit fibrous diamond contg. no graphite on a substrate having transition metal powder deposited thereon by treating a gaseous mixture consisting of H2 and hydrocarbon with a heated filament under reduced pressure to carry out excitation and dissociation of H2 and the hydrocarbon. CONST...

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Bibliographische Detailangaben
Hauptverfasser:	SATOU YOUICHIROU, KAMO MUTSUKAZU, SEDAKA NOBUO, MATSUMOTO SEIICHIROU
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE APPARATUS THEREFOR CHEMISTRY CRYSTAL GROWTH METALLURGY PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE REFINING BY ZONE-MELTING OF MATERIAL SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE SINGLE-CRYSTAL-GROWTH UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL
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Beschreibung
Zusammenfassung:	PURPOSE:To deposit fibrous diamond contg. no graphite on a substrate having transition metal powder deposited thereon by treating a gaseous mixture consisting of H2 and hydrocarbon with a heated filament under reduced pressure to carry out excitation and dissociation of H2 and the hydrocarbon. CONSTITUTION:A substrate 5 deposited with transition metal powder is placed on a supporting bed 6 in a reaction chamber 4, and the inside of the chamber 4 is evacuated to =2,000 deg.C by passing electric current through the filament 16. Thus, H2 and hydrocarbon gas in the excited and dissociated state are formed, and fibrous diamond is deposited on the substrate 5. Or, fibrous diamond may be also deposited on the substrate 5 under