Axil--

You said: "My belief is, if it can handle fission of U235, it should handle 
LENR."

U-235 fissioning only depends on being around a thermal neutron.  Si-C would 
have to maintain its NAE capability when it gets hot.  A large range of 
operating temperatures for LENR may not be in the cards.  Lets hope it is not, 
since it would imply that the LENR process would not have a negative 
temperature coeff.  

 If you are thinking about a dispersion of the NAE within a containment 
structure of Si-C then I would agree with you.  Plain graphite would probably 
work ok also as a containment structure.  .  

Bob




  ----- Original Message ----- 
  From: Axil Axil 
  To: vortex-l 
  Sent: Tuesday, March 25, 2014 11:40 PM
  Subject: [Vo]:Why not Silicon Carbide for the NiH reactor?


  The high sublimation temperature of SiC (approximately 2700 °C) makes it at 
the high end of the insolating ceramic operating temperature range.. Silicon 
carbide does not melt at any known pressure. It is also highly inert 
chemically. 


  Its high thermal conductivity, high electric field breakdown strength and 
high maximum current density make it most promising any type of LENR reaction.


  SiC also has a very low coefficient of thermal expansion (4.0 × 10?6/K) and 
experiences no phase transitions that would cause discontinuities in thermal 
expansion.


  On the downside, In the 1980s and 1990s, silicon carbide was studied in 
several research programs for high-temperature gas turbines in Europe, Japan 
and the United States. The components were intended to replace nickel 
superalloy turbine blades or nozzle vanes. However, none of these projects 
resulted in a production quantity, mainly because of its low impact resistance 
and its low fracture toughness.


  Silicon carbide is used in high temperature kilns such as for firing 
ceramics, 


  Silicon carbide is an important structural  material in TRISO-coated fuel 
particles, the type of nuclear fuel found in high temperature gas cooled 
reactors (such as the Pebble Bed Reactor). A layer of silicon carbide gives 
coated fuel particles structural support and is the main diffusion barrier to 
the release of fission products.


  My belief is, if it can handle fission of U235, it should handle LENR.


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