Resources Contact Us Home
Boron carbide ceramic and manufacturing method thereof

Image Number 9 for United States Patent #7893000.

Boron carbide ceramics produced by spark sintering methods have more desirable mechanical properties than conventionally produced carbides. The boron carbide ceramics include amorphous boron, amorphous carbon, and Al.sub.2O.sub.3 powder as a sintering aid. The boron carbides may also contain a carbon nano fiber in a nearly homogeneously dispersed state. The sintered compact has a relative density of a boron carbide ceramic of approximately not less than 99%. The boron carbide ceramics are prepared preferably by subjecting a mixed powder of the starting raw materials and the carbon nano fiber to simultaneous synthesis and sintering using the spark plasma sintering method.

  Recently Added Patents
Network client validation of network management frames
Atmospheric treater with roller confined discharge chamber
Registration and network access control
Gas cap removal tool
Metal-containing compositions and method of making same
Switchable memory diodes based on ferroelectric/conjugated polymer heterostructures and/or their composites
Compositions, organisms, systems, and methods for expressing a gene product in plants using SCBV expression control sequences operable in monocots and dicots
  Randomly Featured Patents
Low end appliance server bezel
Intercostal for an aircraft or spacecraft
Mobile radio communication apparatus having a plurality of MINs
Ornamental Christmas tree watering device
Hydraulic brake system for motor vehicles
Adhesive insert stud
Garment processing with biological sanitization and inspection procedures
Common mode choke coil of the conductor/insulator stacked type that uses a high machinability substrate and benzocyclobutene as the insulator
Light emitting device and method of manufacturing the same
Injection molding apparatus with removable nozzle seal