摘要:
A multilayer armor plating material contains a single-piece or multi-piece ceramic or metallic layer which, as seen in the direction of attack, is followed by a rear supporting layer of glass fiber-reinforced plastic (GRP) and/or of carbon fiber-reinforced plastic (CRP). As seen in the direction of attack the ceramic or metallic layer is preceded by a front supporting layer of glass fiber-reinforced plastic (GRP) and/or carbon fiber-reinforced plastic (CRP). As a result, the steel or ceramic layer is optimally embedded in a composite between the front and rear supporting layers and thereby supported. This in particular protects the ceramic or steel material from harmful vibrations caused by repeated impact of projectiles, on account of the higher rigidity of the structure reducing the vibration amplitudes.
摘要:
A fiber-reinforced composite body containing a first zone made of a ceramic matrix, which predominantly contains silicon carbide and, optionally, silicon and/or carbon and/or compounds thereof, and containing a second zone, which is located on a surface of the ceramic matrix zone and formed form a fiber-reinforced C/SiC ceramic. The fiber length decreases from the exterior of the fiber-reinforced ceramic zone up to the first zone and, optionally, up to one or more other zones that are arranged on the second zone. A method for producing the composite body is characterized by involving a joint infiltration at least of the first zone and of the second zone with liquid silicon and by the carrying out of a siliconization. A composite body of this type can be used, in particular, as armoring in the civil or military sectors.
摘要:
A fiber-reinforced composite body containing a first zone made of a ceramic matrix, which predominantly contains silicon carbide and, optionally, silicon and/or carbon and/or compounds thereof, and containing a second zone, which is located on a surface of the ceramic matrix zone and formed form a fiber-reinforced C/SiC ceramic. The fiber length decreases from the exterior of the fiber-reinforced ceramic zone up to the first zone and, optionally, up to one or more other zones that are arranged on the second zone. A method for producing the composite body is characterized by involving a joint infiltration at least of the first zone and of the second zone with liquid silicon and by the carrying out of a siliconization. A composite body of this type can be used, in particular, as armoring in the civil or military sectors.
摘要:
A ceramic composite body includes at least two layers: material layer A and material layer B. Material layer A contains phases of a metal and the carbide of this metal. Material layer B contains silicon carbide that has been loosely bound by sintering. A method for fabricating the composite body is included and a protective armor against projectiles.
摘要:
A method of producing a fiber-reinforced carbide-ceramic component includes producing a carbonaceous article from at least one unidirectional tape by pyrolysis, infiltrating the carbonaceous article with carbide former, and coating the at least one unidirectional tape with a coating material being volatile in pyrolysis and/or providing the at least one unidirectional tape with a transverse thread system including transverse threads composed of a material being volatile in pyrolysis. A fiber-reinforced carbide ceramic component is also provided.
摘要:
A workpiece carrier for the inductive heating of workpieces contains ceramic materials at least at bearing surfaces which come into contact with the workpieces. The ceramic materials are distinguished by a high dimensional stability, low thermal and electrical conductivity and a high resistance to thermal shocks. A process for producing a ceramic material for a workpiece carrier obtains a suitable ceramic material by infiltrating a porous carbon skeleton with silicon. Processes for inductive heating and inductive hardening of workpieces with the workpiece carrier are also provided.
摘要:
A workpiece carrier for the inductive heating of workpieces contains ceramic materials at least at bearing surfaces which come into contact with the workpieces. The ceramic materials are distinguished by a high dimensional stability, low thermal and electrical conductivity and a high resistance to thermal shocks. A process for producing a ceramic material for a workpiece carrier obtains a suitable ceramic material by infiltrating a porous carbon skeleton with silicon. Processes for inductive heating and inductive hardening of workpieces with the workpiece carrier are also provided.
摘要:
A method of producing a calibrating body, gage or measuring device, preferably a screw-thread measuring device, at least partially including a C—SiC material constructed of a porous, carbon-containing material with infiltrated liquid Si, includes converting the Si at least partially to SiC by reaction with carbon. The C—SiC material is produced from a C—C material based on carbon felt material produced by pressing monofibers or fiber fragments irregularly entwined with each other. A calibrating body, gage or measuring device, preferably a screw-thread measuring device, is also provided.
摘要:
A method of producing a calibrating body, gage or measuring device, preferably a screw-thread measuring device, at least partially including a C-SiC material constructed of a porous, carbon-containing material with infiltrated liquid Si, includes converting the Si at least partially to SiC by reaction with carbon. The C-SiC material is produced from a C-C material based on carbon felt material produced by pressing monofibers or fiber fragments irregularly entwined with each other. A calibrating body, gage or measuring device, preferably a screw-thread measuring device, is also provided.
摘要:
Multilayer composite for combustion chambers or nozzles of missiles, comprising an interior layer in contact with the combustion gases and an outer layer, wherein the interior layer is a fiber-reinforced ceramic whose matrix comprises phases of carbon and/or phases of silicon carbide and the outer layer is a polymer reinforced with carbon fibers, process for producing the same and combustion chambers and nozzles for missiles made of this composite