A method for manufacturing a thin and flexible ribbon of superconductor material such as V3Sn, V3Ge, V3Si, Nb3Sn, Nb3Ge, Nb3Si and La-Au having a fine and compact microscopic structure comprises heating raw superconductor material at a temperature within the range between its melting point and 300°C
A method for manufacturing a thin and flexible ribbon of superconductor material such as V3Sn, V3Ge, V3Si, Nb3Sn, Nb3Ge, Nb3Si and La-Au having a fine and compact microscopic structure comprises heating raw superconductor material at a temperature within the range between its melting point and 300°C. above the melting point to form a melt having suitable wettability and viscosity; ejecting the melt through a nozzle under a pressure within the range from 0.01 to 1.5 atm. against a cooling surface of a moving substrate such as a rotating drum; and cooling instantaneously and very rapidly a jet flow of the melt on the cooling surface at a cooling rate of 1,000°C. to 1,000,000°C./sec. In order to manufacture the thin elongated ribbon of excellent configuration it is preferable to effect the cooling in a reduced atmosphere. The invention also provides the thin and flexible ribbon processed by the above mentioned process. When an intermetallic compound such as Nb-Si, Nb-Sn, Nb-Ge, V-Si, V-Sn and V-Ge is used as the raw superconductor material a thin and flexible ribbon of superconductor material having essentially a crystalline structure is formed. When La1-x(AuyCu1-y)x, wherein x>0.9, 0≤y≤1 is used as the raw superconductor material it is possible to obtain a thin and flexible ribbon of superconductor material having essentially a fine and compact crystalline structure mixed with amorphous of 10 to 90%.
대표청구항▼
A thin and flexible ribbon of superconductor material having a fine and compact microscopic structure, processed by: (a) heating a material consisting essentially of a raw superconductor material selected from the group of intermetallic compounds consisting of Nb-Si, Nb-Sn, Nb-Ge, V-Si, V-Sn, V-Ge,
A thin and flexible ribbon of superconductor material having a fine and compact microscopic structure, processed by: (a) heating a material consisting essentially of a raw superconductor material selected from the group of intermetallic compounds consisting of Nb-Si, Nb-Sn, Nb-Ge, V-Si, V-Sn, V-Ge, La-Au, and La1-x(AuyCu1-y)x, wherein x>0.9, 0≤y≤1 to form a uniform melt at a temperature within the range between the melting point of the raw material and 300°C. above the melting point; (b) adding a glass former selected from the group consisting of boron, bismuth, phosphorous, antimony, gallium, tin, in an amount not greater than 50 atomic percent of the raw superconductor material to the melt to produce a melt having suitable wettability and viscosity; (c) ejecting the melt through a nozzle under a pressure of 0.01-1.5 atm. against a cooling surface of a moving substrate; and (d) cooling a jet flow of the melt at a cooling rate of 1,000°C. to 1,000,000°C./sec. A method of manufacturing a thin and flexible ribbon of superconductor material having a fine and compact microscopic structure comprising: (a) heating a material consisting essentially of a raw superconductor material selected from the group of intermetallic compounds consisting of Nb-Si, Nb-Sn, Nb-Ge, V-Si, V-Sn, V-Ge, La-Au, and La1-x(AuyCu1-y)x, wherein x>0.9, 0≤y≤1 to form a uniform melt at a temperature of within the range between the melting point of raw material and 300°C. above said melting point to produce a melt having a suitable wettability and viscosity; (b) adding a glass former selected from the group consisting of boron, bismuth, phosphorous, antimony, gallium, and tin in an amount of not greater than 50 atomic percent of the raw superconductor to the melt; (c) ejecting the melt through a nozzle under a pressure of 0.01-1.5 atm. against an outer cooling surface of a moving substrate having good wettability for said melt; and (d) cooling a jet flow of the melt at a cooling rate of 1,000°C. to 1,000,000°C./sec, whereby a flexible ribbon of superconductor material having a microscopic crystalline structure mixed with an amorphous state in a ratio of from about 10 to 90% is produced.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (3)
Narasimhan Mandayam C. (Flanders NJ), Continuous casting method for metallic amorphous strips.
Fournier Pascal (Paris FRX) Peraud Jean-Claude (Mandres Les Roses FRX), Apparatus for rapid solidification of thin metallic strips on a continuously moving substrate.
Liebermann Howard H. (Succasunna NJ) Wellslager John A. (Mount Arlington NJ) Davis Lance A. (Morristown NJ), Casting in a exothermic reduction atmosphere.
Keem John E. (Bloomfield Hills MI) Ovshinsky Stanford R. (Bloomfield Hills MI) Sadate-Akhavi Hossein (Bloomfield Hills MI) Chen Juei-Teng (Sterling Heights MI) Kadin Alan M. (Troy MI), Superconducting films and devices exhibiting AC to DC conversion.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.