Process for internally coating functional layers with through-hardened material

The invention has involved the development of a process for internally coating the pores of a porous functional layer made of a base material with a through-hardened material, which reduces the diffusion of the base material and/or the reactivity of the base material with its surroundings. According...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MAUER GEORG, VONDAHLEN FRANK, SEBOLD DORIS, VASSEN ROBERT, MACK DANIEL EMIL, STOEVER DETLEV
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BASIC ELECTRIC ELEMENTS 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 SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY ENGINE PLANTS IN GENERAL HEATING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METALLURGY NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES SEMICONDUCTOR DEVICES STEAM ENGINES SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION WEAPONS
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Beschreibung
Zusammenfassung:	The invention has involved the development of a process for internally coating the pores of a porous functional layer made of a base material with a through-hardened material, which reduces the diffusion of the base material and/or the reactivity of the base material with its surroundings. According to the invention, the through-hardened material is deposited from the vapour phase on the inner surfaces of the pores. It has been recognized that, owing to the deposition from the vapour phase, the through-hardened material can be introduced into the pore system of the functional layer to a considerably greater depth than was possible according to the present prior art. This is applicable particularly when it is not the through-hardened material itself which is introduced into the pore system, but rather one or two precursors thereof, from which the actual through-hardened material arises only on the inner surfaces of the pores.