COUPLING MEMBER AND COUPLING METHOD

PURPOSE:To improve stress and shock resistances and to obtain heat resistance and high strength by forming a ceramic coating layer of Ti-contg. carbide or Ti-contg. nitride on the part of a metal or ceramic coupling member to be fixed in a ceramic member. CONSTITUTION:When each moving blade 2 of a g...

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Bibliographische Detailangaben
Hauptverfasser:	SAKAI HIROAKI, SAKAI OSAMU, NAKASUJI YOSHIATSU
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE BLASTING CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE ENGINE PLANTS IN GENERAL HEATING LIGHTING LIME, MAGNESIA MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METALLURGY NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES REFRACTORIES SLAG STEAM ENGINES TREATMENT OF NATURAL STONE WEAPONS
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Beschreibung
Zusammenfassung:	PURPOSE:To improve stress and shock resistances and to obtain heat resistance and high strength by forming a ceramic coating layer of Ti-contg. carbide or Ti-contg. nitride on the part of a metal or ceramic coupling member to be fixed in a ceramic member. CONSTITUTION:When each moving blade 2 of a gas turbine is made of ceramic, preferably Si3N4 or SiC and coupled to the metal disk 1 of the turbine, a ceramic coating layer 4 of Ti-contg. carbide or Ti-contg. nitride is formed on the root 3 of the blade 2 coming in contact with the disk 1. When the root 3 comes in contact with the disk 1, concentrated load due to contact is relieved by the layer 4 having superior ductility, oxidation and corrosion resistances and stress does not concentrate on the root 3.