Abstract: The recycled crumb rubber coating is a corrosion-proof coating for piping and the like. The coating is formed from recycled crumb rubber mixed with an epoxy resin and a hardener. Crumb rubber is first mixed with a liquid epoxy resin. An agent for reducing the viscosity of the liquid epoxy resin may also be added. A hardener is then added to this mixture. Finally, powdered crumb rubber is added and mixed to form the recycled crumb rubber coating. The total crumb rubber forms about 23 wt % of the coating. If no viscosity reducing agent is added, then the liquid epoxy resin forms about 51.6 wt % of the coating. If the viscosity reducing agent is added, then the liquid epoxy resin forms about 50.1 wt % of the coating, and the viscosity reducing agent forms about 1.5 wt % of the coating. The hardener forms about 25.4 wt % of the coating.

Abstract: The systems and methods of this patent application are directed to producing a composition of nano-grained NiTi (Ni—nickel, Ti—titanium) alloy for use in producing nano-grained wires. Nano-grained wires, for example, are used to generate medical instruments such as an endodontic instrument. A specific method of producing the nano-grained composition includes preparing a mixture of nickel (Ni) powder and titanium (Ti) powder. The mixture of nickel powder and titanium powder is sintered to produce a nano-grained NiTi alloy. In one embodiment, an endodontic instrument is formed using the nano-grained NiTi alloy and heat-treated.