发明名称 METHODS AND APPARATUS FOR FORMING BULK METALLIC GLASS PARTS USING AN AMORPHOUS COATED MOLD TO REDUCE CRYSTALLIZATION
摘要 Embodiments herein relate to methods and apparatuses for casting of BMG-containing parts. The surfaces of the mold that come into contact with the molten amorphous alloy comprise an amorphous material. In accordance with the disclosure, the mold may be coated with an amorphous material, e.g., to reduce, minimize, or eliminate crystallization of the molded BMG-containing part. The surfaces of the mold are coated, in certain aspects, so as to reduce or eliminate potential grain-boundary nucleation sites for BMG crystallization. The amorphous material may be selected based on the particular molten amorphous alloy to be cast, e.g., based on the wetting properties, the melting and cooling properties, etc.
申请公布号 US2016024630(A1) 申请公布日期 2016.01.28
申请号 US201514811594 申请日期 2015.07.28
申请人 Apple Inc. 发明人 Weber Douglas J.;Takagi Kazuya;Waniuk Theodore A.
分类号 C22F1/14;C22C45/00;B22C3/00;C22C1/00 主分类号 C22F1/14
代理机构 代理人
主权项 1. A method of forming a metallic glass, comprising: placing a softened or molten metallic glass-forming alloy in contact with a surface of a mold, wherein said surface is amorphous; cooling the metallic glass-forming alloy to form a metallic glass.
地址 Cupertino CA US