Abstract: Disclosed is a method for producing a Heusler-based phase thermoelectric material using an amorphous phase precursor. More specifically disclosed is a method for producing a powder or bulk thermoelectric material having a microstructure including a Heusler-based phase with a thermoelectric effect by crystallization of an amorphous phase precursor prepared by a non-equilibrium processes. Also disclosed is a device using a Heusler-based phase thermoelectric material produced by the method. The method largely avoids the efficiency problems of conventional methods, including low productivity in scaling up caused by long annealing time, high annealing temperature, and contamination during nanopowder production, achieving improved process efficiency. In addition, the method enables efficient production of a thermoelectric material having a nano-sized microstructure that is difficult to produce by a conventional method.

Abstract: A method for manufacturing an amorphous alloy by using liquid pig iron is described. An exemplary embodiment provides a method for manufacturing an amorphous alloy, including providing liquid pig iron, adding an alloy material to the liquid pig iron, and solidifying the liquid pig iron.

Abstract: Provided is an iron-based amorphous alloy and a method of manufacturing the same. More particularly, provided is an high carbon iron-based amorphous alloy expressed by a general formula Fe?C?Si?BxPyCrz, wherein ?, ?, ?, x, y and z are atomic % of iron (Fe), carbon (C), silicon (Si), boron (B), phosphorus (P), and chrome (Cr) respectively, wherein ? is expressed by ?=100?(?+?+x+y+z) atomic %, ? is expressed by 13.5 atomic %???17.8 atomic %, ? is expressed by 0.30 atomic %???1.50 atomic %, x is expressed by 0.1 atomic %?x?4.0 atomic %, y is expressed by 0.8 atomic %?y?7.7 atomic %, and z is expressed by 0.1 atomic %?z?3.0 atomic %.

Abstract: Provided is an iron-based amorphous alloy and a method of manufacturing the same. More particularly, provided is an high carbon iron-based amorphous alloy expressed by a general formula Fe?C?Si?BxPyCrz, wherein ?, ?, ?, x, y and z are atomic % of iron (Fe), carbon (C), silicon (Si), boron (B), phosphorus (P), and chrome (Cr) respectively, wherein ? is expressed by ?=100?(?+?+x+y+z) atomic %, ? is expressed by 13.5 atomic %???17.8 atomic %, ? is expressed by 0.30 atomic %???1.50 atomic %, x is expressed by 0.1 atomic %?x?4.0 atomic %, y is expressed by 0.8 atomic %?y?7.7 atomic %, and z is expressed by 0.1 atomic %?z?3.0 atomic %.

Abstract: Provided is an iron-based amorphous alloy and a method of manufacturing the same. More particularly, provided is an high carbon iron-based amorphous alloy expressed by a general formula Fe?C?Si?BxPyCrz, wherein ?, ?, ?, x, y and z are atomic % of iron (Fe), carbon (C), silicon (Si), boron (B), phosphorus (P), and chrome (Cr) respectively, wherein ? is expressed by ?=100?(?+?+x+y+z) atomic %, ? is expressed by 13.5 atomic %???17.8 atomic %, ? is expressed by 0.30 atomic %???1.50 atomic %, x is expressed by 0.1 atomic %?x?4.0 atomic %, y is expressed by 0.8 atomic %?y?7.7 atomic %, and z is expressed by 0.1 atomic %?z?3.0 atomic %.

Abstract: Provided is an iron-based amorphous alloy and a method of manufacturing the same. More particularly, provided is an high carbon iron-based amorphous alloy expressed by a general formula Fe?C?Si?BxPyCrz, wherein ?, ?, ?, x, y and z are atomic % of iron (Fe), carbon (C), silicon (Si), boron (B), phosphorus (P), and chrome (Cr) respectively, wherein a is expressed by ?=100?(?+?+x+y+z) atomic %, ? is expressed by 13.5 atomic %???17.8 atomic %, ? is expressed by 0.30 atomic %???1.50 atomic %, x is expressed by 0.1 atomic %?x?4.0 atomic %, y is expressed by 0.8 atomic %?y?7.7 atomic %, and z is expressed by 0.1 atomic %?z?3.0 atomic %.

Abstract: The present invention relates to a method for manufacturing an amorphous alloy by using liquid pig iron. The exemplary embodiment of the present invention provides a method for manufacturing an amorphous alloy, including providing liquid pig iron, adding an alloy material to the liquid pig iron, and solidifying the liquid pig iron.

Abstract: Disclosed is a Fe-based bulk amorphous alloy composition which forms a bulk amorphous substance due to its excellent amorphous formability when it is cooled to a temperature lower than its glass transition temperature from the liquid state at a relatively low cooling rate of 1000 K/s or less, has high warm processability in a low temperature range owing to its supercooled liquid region of 20K or higher and has excellent fluidity in the liquid state and thereby good castability.

Abstract: Disclosed is a Fe-based bulk amorphous alloy composition which forms a bulk amorphous substance due to its excellent amorphous formability when it is cooled to a temperature lower than its glass transition temperature from the liquid state at a relatively low cooling rate of 1000 K/s or less, has high warm processability in a low temperature range owing to its supercooled liquid region of 20K or higher and has excellent fluidity in the liquid state and thereby good castability.

Abstract: Disclosed is a quasicrystalline phase-reinforced Mg-based metallic alloy with high warm and hot formability, and making method thereof. The metallic alloy comprises a composition of Mg-1˜10 at % Zn-0.1˜3 at % Y, in which a two-phase region consisting of a quasicrystalline phase and a magnesium-based solid solution phase exists. Constituting a matrix structure, the Mg-based solid solution phase (&agr;-Mg) is formed as a primary solid phase upon solidification. The quasicrystalline phase serves as a second phase and forms, together with the Mg-based solid solution phase, a eutectic phase, thereby reinforcing the matrix. The materials obtained through the hot rolling or extrusion of the cast alloy have an increased volume % of the second phase and thus show significantly increased strength.

Abstract: Disclosed is a quasicrystalline phase-reinforced Mg-based metallic alloy with high warm and hot formability, and making method thereof. The metallic alloy comprises a composition of Mg—1˜10 at % Zn—0.1˜3 at % Y, in which a two-phase region consisting of a quascrystalline phase and a magnesium-based solid solution phase exists. Constituting a matrix structure, the Mg-based solid solution phase (&agr;—Mg) is formed as a primary solid phase upon solidification. The quasicrystalline phase serves as a second phase and forms, together with the Mg-based solid solution phase, a eutectic phase, thereby reinforcing the matrix. The materials obtained through the hot rolling or extrusion of the cast alloy have an increased volume % of the second phase and thus show significantly increased strength.