Production of large-area bulk metallic glass sheets by spinning
AssigneeCrucible Intellectual Property, LLC
InventorJoseph W. Stevick
Life of this patent
Estimating the term…
Abstract
Disclosed herein is a device comprising: vacuum chamber; a stage configured to receive BMG in a molten state or a BMG feedstock, configured to spin, and located in the vacuum chamber; a heater configured to melt the BMG feedstock or to keep BMG in a molten state molten; wherein the stage comprises one or more conduits therein and the conduits are configured to accommodate a cooling fluid. Also disclosed herein is a method of forming a solid BMG sheet, the method comprising: disposing BMG in a molten state onto a stage; spreading the BMG in a molten state into a sheet of BMG in a molten state by spinning the stage; cooling the sheet of BMG in a molten state to form a solid BMG sheet.
Claims21
A device comprising:
- a vacuum chamber comprising a heated region and an unheated region;
- a stage located in the vacuum chamber, the stage configured to spin and to receive Bulk Metallic Glass (“BMG”) in a molten state or a BMG feedstock;
- a heater configured to melt the BMG feedstock or to keep BMG in a molten state;
- wherein:
- the stage is configured to spin at a speed sufficient to spread the BMG in a molten state on the stage to form a solid BMG sheet;
- the stage comprises one or more conduits therein and the conduits are configured to accommodate a cooling fluid;
- and
- the one or more conduits are capable of cooling the BMG at a cooling rate of up to 1000° C/second.
A device comprising:
- a vacuum chamber comprising a heated region and an unheated region;
- a stage configured to spread BMG in a molten state into a sheet by centrifugal force, configured to prevent oxidation or contamination of the BMG in a molten state during spreading, and configured to cool the BMG in a molten state into BMG in a solid BMG form while maintaining amorphicity of the BMG in a solid state,
- wherein:
- the stage comprises one or more conduits therein and the conduits are configured to accommodate a cooling fluid;
- and
- the one or more conduits are capable of cooling the BMG at a cooling rate of up to 1000° C./second.
A device comprising:
- a vacuum chamber comprising a heated region and an unheated region;
- a stage configured to receive BMG in a molten state;
- wherein:
- the device is configured to spread the BMG in a molten state into a sheet;
- the device is configured to cool the sheet while maintaining amorphicity of the sheet;
- the stage comprises one or more conduits therein and the conduits are configured to accommodate a cooling fluid;
- and
- the one or more conduits are capable of cooling the sheet at a cooling rate of up to 1000° C./second.
Dependencies are inferred from the claim text.