Boride Products
Manufacturers of boron carbide, silicon nitride, and tungsten carbide nozzles for dry and wet abrasive blasting. Site discusses suitability of each type for different applications.
http://www.boride.com

UK Abrasives
Supplies boron carbide, silicon carbide, CBN and polycrystalline structure synthetic diamond powders and diamond compounds from inventory.
http://www.ukabrasives.com/

Spartan Carbide Inc.
Spartan Carbide is the leader in custom carbide tooling and inserts, specializing in grinding Carbide, Polycrystalline Diamond (PCD), Cubic Boron Nitride (CBN), Ceramic cutting tools and Special Inserts.
http://www.spartancarbide.com

Electro Abrasives
Manufactures silicon carbide, boron carbide, aluminum oxide, zirconia alumina, alumina, tin oxide, cerium oxide and cryolite powders for use in grinding and polishing products.
http://www.electroabrasives.com/

Specialty Materials, Inc
Specialty Materials, Inc. in Lowell, MA produces boron fiber, SCS Silicon Carbide Fibers and boron nanopowder for use in aerospace, sporting goods and industrial applications.
http://www.specmaterials.com/

Boron: A Better Energy Carrier than Hydrogen
The case for boron as an electricity-like energy carrier, nonpolluting at point of use, but able to put much more energy on board a suitably designed motor vehicle than electricity can, without any hazard analogous to electrocution
http://www.eagle.ca/~gcowan/boron_blast.html

Leech Carbide
Manufacturer of tungsten carbide and supplier of preformed carbide wear parts.
http://www.leechcarbide.com

BoronWeb
The World of Boron Chemistry. Current research and information on boron, borane, heteroborane and metallaborane chemistry around the world
http://www.chem.leeds.ac.uk/boronweb/

Philadelphia Carbide Company
Designer & manufacturer of precision-ground wear parts, machine parts, dies & punches; specialists in tungsten carbide, ceramics and silicon carbide; grinding, honing, polishing; serving electronics, automotive, metal forming, computer, plastics & pump industries
http://www.philacarbide.com/

Innovative Carbide, Inc.
Innovative Carbide delivers the highest quality tungsten carbide products, while responding to customer's needs by providing a commitment to quality, with fast quotes, complete engineering services, an exclusive no wax process and no crack edm guarantee
http://www.innovativecarbide.com/