Advanced SiC/SiC Composites by NITE Process

Cera-NITE®

Specifications

The NITE method is a revolutionary manufacturing process using advanced SiC fiber and SiC nanopowder.Linking SiC nanocrystal fiber and the matrix at the nano-level carbon interface makes it possible to draw it out like metal, realizing high strength ceramic composite material.

Specifications

Reinforcing material Si-Al-C type ceramic fiber Tyranno-SATM
Fiber volume fraction Approx. 45% (flexibly controllable depending on the design)
Fiber/matrix interface Pyrolytic carbon (PyC), boron nitride (BN), etc.
Reinforcement structure Unidirectional fiber reinforcement (UD), crossply (±90°), flat-woven, etc.
Matrix material β-SiC nanopowder, oxide type additives
Shapes Plate, block, tubular, etc.
Major uses Fusion reactors (blankets), next-generation nuclear reactors (fuel assemblies, intermediary heat exchangers) and other advanced energy systems, aerospace industry (gas turbines, nozzles), chemical plants, etc.

Cera-NITE in a variety of shapes

Cylinders (diameter 200mm, length 80mm)

Blocks (97mm x 97mm x 70mm)


Thin plates (195mm x 195mm x 2.5mm)

Tubes (external diameter 12mm, internal diameter 10mm, length 50mm)


Thermophysical properties (based on Cera-NITE UD Lot #0408)

Cera-NITE cross-sectional surface
  • Density: 3.04 mg/m3
  • Tensile strength: 400 MPa
  • Elastic constant: 310 GPa
  • PLS: 125 MPa
  • Thermal conductivity: 22.6 W/m·K

Comparison to conventional products *1 *2

* The yellow frame and figures represent the targets for material development used in nuclear fusion power reactor concept design(Mikuni ARIES_1 reactor)

*1:
The properties of products of other companies are based on catalog values, not test values.
*2:
Manufacturing cost is prime cost, not sales price.