ANTIWETTING COATING FOR LIQUID METAL BEARING AND METHOD OF MAKING THE SAME

PROBLEM TO BE SOLVED: To design an X-ray tube provided with a spiral groove bearing (SGB) having robust highly hard coating which can hardly be oxidized.SOLUTION: An X-ray tube includes a frame enclosing a high vacuum, a cathode positioned within the enclosure, and a bearing assembly. The bearing as...

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Bibliographische Detailangaben
Hauptverfasser:	DONALD ROBERT ALLEN, MICHAEL JOHN DANYLUK
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS 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 ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRICITY 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:	PROBLEM TO BE SOLVED: To design an X-ray tube provided with a spiral groove bearing (SGB) having robust highly hard coating which can hardly be oxidized.SOLUTION: An X-ray tube includes a frame enclosing a high vacuum, a cathode positioned within the enclosure, and a bearing assembly. The bearing assembly includes: a stationary component comprising a first base substrate having a first surface; a rotatable component comprising a second base substrate having a second surface, where the rotatable component is positioned proximately to the stationary component such that a gap is formed between the first surface and the second surface; a liquid metal positioned within the gap; and an antiwetting coating attached to at least one of the first surface and the second surface, where the antiwetting coating includes titanium nitride attached to the at least one of the first surface and the second surface, and titanium oxide attached to the titanium nitride.