An enamel composition, a method for preparing an enamel composition, and a cooking appliance are provided. The enamel composition may include phosphorus pentoxide (P.sub.2O.sub.5) at 15 to 50 wt %; silicon dioxide (SiO.sub.2) at 10 to 20 wt %; boron oxide (B.sub.2O.sub.3) at 1 to 15 wt %; one or more of lithium oxide (Li.sub.2O), sodium oxide (Na.sub.2O), or potassium oxide (K.sub.2O) at 5 to 20 wt %; one or more of sodium fluoride (NaF), calcium fluoride (CaF.sub.2), or aluminum fluoride (AlF.sub.3) at 1 to 5 wt %; one or more of magnesium oxide (MgO), barium oxide (BaO), or calcium oxide (CaO) at 1 to 35 wt %; and one or more of titanium dioxide (TiO.sub.2), cerium dioxide (CeO.sub.2), molybdenum trioxide (MoO.sub.3), bismuth oxide (Bi.sub.2O.sub.3), or copper oxide (CuO) at 10 to 25 wt %, such that a heating time required for cleaning may be shortened and oil contaminants may be completely removed.

A protective surface treatment in the form of a coating for steel or another metal or metal alloy capable of providing oxidation resistance in an inert gas furnace or air-containing furnace is provided. The coating is formed by a solution including at least one flux agent, such as boric acid, and at least one binder, such as polyvinylpyrrolidone (PVP), polyvinylpyrrolidone/vinyl acetate (PVP/VA), hydrooxypropylcellulose (HPC), ethylcellulose, and/or acrylics. The solution also includes at least one solvent, such as methanol or ethanol and can include various additives. The finished coating includes iron borate and provides a glassy surface.

A protective surface treatment in the form of a coating for steel or another metal or metal alloy capable of providing oxidation resistance in an inert gas furnace or air-containing furnace is provided. The coating is formed by a solution including at least one flux agent, such as boric acid, and at least one binder, such as polyvinylpyrrolidone (PVP), polyvinylpyrrolidone/vinyl acetate (PVP/VA), hydrooxypropylcellulose (HPC), ethylcellulose, and/or acrylics. The solution also includes at least one solvent, such as methanol or ethanol and can include various additives. The finished coating includes iron borate and provides a glassy surface.

A process for the manufacture of a coated combustion component. The process includes spraying one or more liquid or powdered precursors into a high temperature thermal jet directed to a surface of a combustion component and forming a surface coating derived from the precursors to provide the coated combustion component. The surface coating may comprise a phosphate glass or a silicate glass. The surface coating may have a coefficient of thermal expansion from 3 to 26 ppm/K. A coefficient of thermal expansion of the combustion component may be greater than or equal to the coefficient of thermal expansion of the surface coating. The spraying may comprise solution spraying, powder thermal spraying, suspension thermal spraying, or a combination thereof.

A process for the manufacture of a coated combustion component. The process includes spraying one or more liquid or powdered precursors into a high temperature thermal jet directed to a surface of a combustion component and forming a surface coating derived from the precursors to provide the coated combustion component. The surface coating may comprise a phosphate glass or a silicate glass. The surface coating may have a coefficient of thermal expansion from 3 to 26 ppm/K. A coefficient of thermal expansion of the combustion component may be greater than or equal to the coefficient of thermal expansion of the surface coating. The spraying may comprise solution spraying, powder thermal spraying, suspension thermal spraying, or a combination thereof.

In some embodiments, a method of forming a structure includes: forming a liquid oxide material at a low temperature by dissolving fumed nanoparticles in a liquid hydrate of a silicate or an aluminate; applying the liquid oxide material on a substrate; and at a low temperature, curing the liquid oxide material to evolve gaseous water, leaving structural silicate glass.

In some embodiments, a method of forming a structure includes: forming a liquid oxide material at a low temperature by dissolving fumed nanoparticles in a liquid hydrate of a silicate or an aluminate; applying the liquid oxide material on a substrate; and at a low temperature, curing the liquid oxide material to evolve gaseous water, leaving structural silicate glass.

An enamel composition, a method for preparing an enamel composition, and a cooking appliance are provided. The enamel composition may include 15 to 50 wt % of silicon dioxide (SiO.sub.2); 1 to 10 wt % of boron oxide (B.sub.2O.sub.3); 10 to 20 wt % of at least one of lithium superoxide (Li.sub.2O), sodium oxide (Na.sub.2O), or potassium oxide (K.sub.2O); 1 to 5 wt % of sodium fluoride (NaF); 1 to 10 wt % of zinc oxide (ZnO); and 20 to 50 wt % of at least one of titanium dioxide (TiO.sub.2), molybdenum oxide (MoO.sub.3), bismuth oxide (Bi.sub.2O.sub.3), cerium dioxide (CeO.sub.2), manganese dioxide (MnO.sub.2), or Iron oxide (Fe.sub.2O.sub.3), which provides an enamel composition with a reduced cleaning time, and facilitates cleaning without soaking in water.

An enamel composition, a method for preparing an enamel composition, and a cooking appliance are provided. The enamel composition may include 15 to 50 wt % of phosphorus pentoxide (P.sub.2O.sub.5); 1 to 20 wt % of silicon dioxide (SiO.sub.2); 1 to 20 wt % of boron oxide (B.sub.2O.sub.3); 5 to 20 wt % of one or more of lithium superoxide (Li.sub.2O), sodium oxide (Na.sub.2O), or potassium oxide (K.sub.2O); 1 to 5 wt % of one or more of sodium fluoride (NaF), calcium fluoride (CaF.sub.2), or aluminum fluoride (AlF.sub.3); 1 to 35 wt % of one or more of magnesium oxide (MgO), barium oxide (BaO), or calcium oxide (CaO); and 5 to 30 wt % of one or more of titanium dioxide (TiO.sub.2), vanadium pentoxide (V.sub.2O.sub.5), molybdenum trioxide (MoO.sub.3), or iron oxide (Fe.sub.2O.sub.3). With such an enamel composition, cleaning may be performed at a low temperature for thermal decomposition, and contaminants, such as fat, may be more completely removed.

An enamel composition, a method for preparing an enamel composition, and a cooking appliance are provided. The enamel composition may include 15 to 50 wt % of phosphorus pentoxide (P.sub.2O.sub.5); 1 to 20 wt % of silicon dioxide (SiO.sub.2); 1 to 20 wt % of boron oxide (B.sub.2O.sub.3); 5 to 20 wt % of one or more of lithium superoxide (Li.sub.2O), sodium oxide (Na.sub.2O), or potassium oxide (K.sub.2O); 1 to 5 wt % of one or more of sodium fluoride (NaF), calcium fluoride (CaF.sub.2), or aluminum fluoride (AlF.sub.3); 1 to 35 wt % of one or more of magnesium oxide (MgO), barium oxide (BaO), or calcium oxide (CaO); and 5 to 30 wt % of one or more of titanium dioxide (TiO.sub.2), vanadium pentoxide (V.sub.2O.sub.5), molybdenum trioxide (MoO.sub.3), or iron oxide (Fe.sub.2O.sub.3). With such an enamel composition, cleaning may be performed at a low temperature for thermal decomposition, and contaminants, such as fat, may be more completely removed.