Patent ID: 8809436

Claim:
A coating composition reinforced by alumina Al 2 O 3 nanofibers prepared by a process comprising: a. synthesizing the alumina Al 2 O 3 nanofibers directly from a melt comprising molten metallic aluminum, the method comprising a controlled liquid phase oxidation of the melt, wherein the synthesized alumina Al 2 O 3 nanofibers have a diameter between 3 and 45 nm and length of more than 100 nm; b. combining the synthesized alumina Al 2 O 3 nanofibers with a polymer matrix to produce a nanocoating material reinforced by the alumina Al 2 O 3 nanofibers; and c. applying the produced nanocoating material to a surface of a substrate, wherein the melt further comprises at least one of: i. Vanadium (V) at concentration between 0.000001 and 12 wt. %; ii. Chrome (Cr) at concentration between 0.000001 and 12 wt. %; iii. Manganese (Mn) at concentration between 0.001 and 12 wt. %; iv. Iron (Fe) at concentration between 0.01 and 12 wt. %; v. Cobalt (Co) at concentration between 0.000001 and 12 wt. %; vi. Nickel (Ni) at concentration between 0.000001 and 12 wt. %; vii. Copper (Cu) at concentration between 0.000001 and 12 wt. %; viii. Zink (Zn) at concentration between 0.000001 and 12 wt. %; ix. Selenium (Se) at concentration between 0.000001 and 12 wt. %; x. Silicon (Si) at concentration between 0.01 and 12 wt. %; xi. Sulfur (S) at concentration between 0.000001 and 12 wt. %; xii. Tellurium (Te) at concentration between 0.000001 and 12 wt. %; xiii. Cerium (Ce) at concentration between 0.000001 and 12 wt. %; xiv. Praseodimium (Pr) at concentration between 0.000001 and 12 wt. %; xv. Neodimium (Nd) at concentration between 0.000001 and 12 wt. %; xvi. Promethium (Pm) at concentration between 0.000001 and 12 wt. %; xvii. Samarium (Sm) at concentration between 0.000001 and 12 wt. %; xviii. Europium (Eu) at concentration between 0.000001 and 12 wt. %; xix. Gadolinium (Gd) at concentration between 0.000001 and 12 wt. %; xx. Terbium (Tb) at concentration between 0.000001 and 12 wt. %; xxi. Dysprosium (Dy) at concentration between 0.000001 and 12 wt. %; xxii. Holmium (Ho) at concentration between 0.000001 and 12 wt. %; xxiii. Erbium (Er) at concentration between 0.000001 and 12 wt. %; xxiv. Thulium (Tm) at concentration between 0.000001 and 12 wt. %; xxv. Ytterbium (Yb)) at concentration between 0.000001 and 12 wt. %; and xxvi. Lutecium (Lu) at concentration between 0.000001 and 12 wt. % and wherein i. through xxvi. summed up represent less than 49 wt. % of the melt and wherein all other elements (except for metallic aluminum) represent less than 0.03 wt. % each, and wherein all other elements (except for metallic aluminum) together comprise less than 1 wt. % of the melt.