Improved gas bearing surface using oxygen implanted beryllium

A process for producing a modified surface layer at the surface of an otherwise beryllium substrate involves exposure of the surface, to an oxygen ion implanting beam. A gas bearing 160 includes a shaft 162 of beryllium disposed in a rotor 164 of ceramic material. End thrust plates 168, 172 are also...

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Bibliographische Detailangaben
Hauptverfasser:	B WAYNE CASTLEMAN, JAMES M. MONTANTE, PAUL O. ROCK
Format:	Patent
Sprache:	eng
Schlagworte:	BEARINGS BLASTING CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LIGHTING MECHANICAL ENGINEERING METALLURGY ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A process for producing a modified surface layer at the surface of an otherwise beryllium substrate involves exposure of the surface, to an oxygen ion implanting beam. A gas bearing 160 includes a shaft 162 of beryllium disposed in a rotor 164 of ceramic material. End thrust plates 168, 172 are also of beryllium. Facing surfaces of the shaft and the thrust plates are treated to produce a beryllium oxide layer by ion implantation.