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
Imaging lens with three lens elements, and electronic apparatus having the same
Imaging apparatus, control method thereof, and program
Lithographic apparatus and device manufacturing method
Epitaxial substrate for electronic device, in which current flows in lateral direction and method of producing the same
Watch chain
Processing color and panchromatic pixels
Adaptive known signal canceller
  Randomly Featured Patents
Dental restorations
Grounding terminal and mounting structure of the same on a printed circuit board
Reed-type discharge valve arrangement for a hermetic compressor
Rosin emulsion
Monoclonal antibodies of isotype IgG which bind specifically to glutamate decarboxylase, and uses thereof
Polymer heart valve with helical coaption surface
Magnetic sensor circuit
Semiconductor switch
Rotary magnet sputtering apparatus
Flow-fill spacer structures for flat panel display device