Cellulosic and synthetic polymeric feedstock barrel for use in rapid discharge forming of metallic glasses
AssigneeGlassimetal Technology, Inc.
InventorsDavid S. Lee, Joseph P. Schramm, Marios D. Demetriou, William L. Johnson, Montague Rittgers
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Abstract
The present disclosure is directed to the use of cellulosic materials, such as wood, paper, etc., or synthetic polymeric materials, such as a thermoplastic, rubber, etc., or a composite containing one or more of these materials as feedstock barrels for the process of injection molding of metallic glasses by rapid capacitor discharge forming (RCDF) techniques.
Claims20
An RCDF apparatus comprising a feedstock barrel that comprises a cellulosic material or synthetic polymeric material.
A method of heating and shaping a metallic glass feedstock using RCDF comprising:
- discharging electrical energy across a metallic glass sample disposed in a cellulosic or synthetic polymer feedstock barrel to heat the metallic glass sample to a processing temperature between the Tg of the metallic glass and Tm of the metallic glass forming alloy;
- applying a deformational force to shape the heated metallic glass sample into an article;
- and
- cooling said article to a temperature below the Tg of the metallic glass.
Dependencies are inferred from the claim text.