Patent ID: 8485245

Claim:
A method comprising: pouring a first molten metal comprising a metal alloy at a temperature near or above a melting temperature (Tm) of the first molten metal so as to form a sheet of the first molten metal, wherein the first molten metal has a composition that forms a bulk solidifying amorphous alloy at a cooling rate of 1000 degree C./s or less, floating the sheet of the first molten metal on a second molten metal in a float chamber; cooling the first molten metal to form a bulk solidifying amorphous alloy sheet, wherein the cooling is at a cooling rate such that a time-temperature profile during the cooling does not traverse through a region bounding a crystalline region of the metal alloy in a time-temperature-transformation (TTT) diagram; and annealing the bulk-solidifying amorphous alloy sheet by heating the bulk solidifying amorphous alloy sheet from below a glass transition temperature (Tg) to above Tg and back below Tg without traversing through the region bounding the crystalline region of the metal alloy in the time-temperature-transformation (TTT) diagram.