Corrosion resistant neutron absorbing coatings

Abstract

A method of forming a corrosion resistant neutron absorbing coating comprising the steps of spray or deposition or sputtering or welding processing to form a composite material made of a spray or deposition or sputtering or welding material, and a neutron absorbing material. Also a corrosion resistant neutron absorbing coating comprising a composite material made of a spray or deposition or sputtering or welding material, and a neutron absorbing material.

The invention claimed is: 
     
         1 . A corrosion resistant neutron absorbing coating, comprising:
 a composite material made of   a spray or deposition or sputtering or welding material, and   a neutron absorbing material.   
     
     
         2 . The corrosion resistant neutron absorbing coating of  claim 1 , wherein said spray or deposition or sputtering or welding material is thermally-sprayed iron-based amorphous metal. 
     
     
         3 . The corrosion resistant neutron absorbing coating of  claim 1 , wherein said neutron absorbing material is any concentration of neutron-absorbing boron. 
     
     
         4 . The corrosion resistant neutron absorbing coating of  claim 1 , wherein said neutron absorbing material is any thermal-spray coating with refractory boride particles. 
     
     
         5 . The corrosion resistant neutron absorbing coating of  claim 1 , wherein said neutron absorbing material is at least one of borides of carbon, titanium, chromium, or nickel, and any combination of borides of carbon, titanium, chromium, or nickel. 
     
     
         6 . The corrosion resistant neutron absorbing coating of  claim 1 , including a corrosion-resistant binder. 
     
     
         7 . The corrosion resistant neutron absorbing coating of  claim 1 , including a corrosion-resistant binder of aluminum, titanium, or zirconium, or any combination of aluminum, titanium, or zirconium. 
     
     
         8 . The corrosion resistant neutron absorbing coating of  claim 1 , including refractory boride particles. 
     
     
         9 . The corrosion resistant neutron absorbing coating of  claim 1 , including refractory boride particles of the borides of carbon, titanium, chromium, or nickel, and any combination of borides of carbon, titanium, chromium, or nickel. 
     
     
         10 . The corrosion resistant neutron absorbing coating of  claim 1 , wherein the coating has a thicknesses greater than one tenth millimeter. 
     
     
         11 . The corrosion resistant neutron absorbing coating of  claim 1 , wherein the coating has a thicknesses in the range of from one tenth millimeter to twenty millimeters. 
     
     
         12 . The corrosion resistant neutron absorbing coating of  claim 1 , wherein the coating has a thicknesses in the range of from three to seven millimeters. 
     
     
         13 . The corrosion resistant neutron absorbing coating of  claim 1 , including neutron poisons. 
     
     
         14 . The corrosion resistant neutron absorbing coating of  claim 1 , including neutron poisons of gadolinium, hafnium, erbium, dysprosium, or cadmium, and any combination of gadolinium, hafnium, erbium, dysprosium, or cadmium. 
     
     
         15 . The corrosion resistant neutron absorbing coating of  claim 1 , including moderator materials. 
     
     
         16 . The corrosion resistant neutron absorbing coating of  claim 1 , including moderator materials of carbon, carbides, hydrogen isotopes, or hydrides formed from any of the hydrogen isotopes. 
     
     
         17 . (The corrosion resistant neutron absorbing coating of  claim 1 , wherein said cold or thermal spray deposited, sputter deposited, or weld processed material is an amorphous-metal alloy with yttrium, chromium, molybdenum, tungsten, boron, carbon, and the possible dispersion of neutron-absorbing or neutron-moderating ceramic particles. Other elements may also be included in these coatings. 
     
     
         18 . The corrosion resistant neutron absorbing coating of  claim 1 , including ceramic nano-particles, where the ceramic particles are oxides, borides, carbides, or nitrides. 
     
     
         19 . The corrosion resistant neutron absorbing coating of  claim 1 , including ceramic nano-particles, where the ceramic particles are hydrides for the purpose of neutron moderation. 
     
     
         20 . The corrosion resistant neutron absorbing coating of  claim 1 , including oxide ceramic nano-particles of at least one alloying element involved in the metal matrix.