JP2002001492A - Method and device for prepairing rapid solidification composite material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prepare an amorphous composite material having N (two or larger integer) pieces of compositions different from each other, or having concentric circular layer structure of mutually different mechanical, magnetic, electrical, chemical, thermal, electronic, and quantum characteristics. SOLUTION: In a melting and rapid solidification device in a gas atmosphere, raw materials are independently melted by use of crucibles having N (two or larger integers) pieces of independent melting chambers or by use of N pieces of independent crucibles and the molten materials are extracted from concentric circular outlets having a layered structure in the radial direction and mixed together during their fluid condition in the layered state to quench it in a rotating water tank. By making use of this device, an amorphous composite material with a circular section having N pieces of different compositions, or different material characteristics in the radial direction can be prepared.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a so-called nanostructure having two or three compositions and properties and having an ultra-fine structure, or a so-called nanostructure or an amorphous and nanostructure which can be used in a wide range of fields. The present invention relates to a combined method for producing an amorphous composite material having two or three or more circular layers and an apparatus for producing the same.

[0002]

2. Description of the Related Art Conventionally, one composition of amorphous,
Alternatively, the so-called nano-structured material of the ultra-fine structure,
It was made by rapid solidification and heat treatment. Also, 1
The production of a layered composite material composed of more than one composition is performed by low-temperature diffusion bonding, rolling, or the so-called nanostructured material of individual composition, amorphous, or ultrafine structure,
It was produced by extrusion or the like.

[0003]

Problems to be Solved by the Invention By improving the rapid solidification apparatus, it is possible to more easily and inexpensively and more easily form an amorphous,
Alternatively, a so-called nanostructure having an ultrafine crystal structure (including a structure in which ultrafine crystal phase particles are dispersed in an amorphous matrix) or a composite material having a circular layered structure combining amorphous and nanostructures is used. , To produce.

[0004]

Means for Solving the Problems In order to achieve the above object, in the present invention, a material container having two or three compositions is used for dissolving a material container having two or three or more independent cells ( Industrially, a container for melting is called a crucible) or two or three or more separate crucibles are melted, and the molten material is discharged from the crucible by gas pressure (and actuation of a mechanical piston). A rotating water tank for quenching by combining two or three or more molten or semi-molten materials in the vicinity of the discharge port of the crucible or during flow after exiting the discharge port And quenched and solidified. In this way, a so-called nanostructure having a circular layered structure having amorphous and ultrafine crystals (including a structure in which ultrafine crystal phase particles are dispersed in an amorphous matrix), or a combination thereof, amorphous + nano A composite material composed of tissue can be created. The present invention has solved the above problem [0003] by improving the structures of the crucible and the discharge port of the molten material.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Amorphous or two or more radially layered structures having a circular layered structure
In the case of producing a so-called nanostructure having an ultrafine crystal structure (including a structure in which ultrafine crystal phase particles are dispersed in an amorphous matrix) or a composite material combining amorphous and nanostructure, firstly, , Two or more components of the material to prevent contamination,
Independent melting, and secondly, in the case of melting materials with different melting temperatures, combining a high-frequency melting furnace with a laser heating device or infrared heating device to independently control the melting temperature of two or three materials To do,
Third, in order to create a composite material with the desired structure,
Two or three near the outlet or after exiting the outlet
It is important to create the structure of the discharge port so that more than one molten or semi-molten material can merge into a laminar shape with a circular cross section during flow.

[0006]

EXAMPLES Example 1: N = 2, that is, a case of a layered amorphous composite material having two compositions (Example numbers 1a and 1b). As shown in the front view of FIG. 1 (a), a clean material-dissolving container 11 and a lid 12, which are excellent in heat resistance and hardly cause contamination even when a material is put therein and melted, and a second material Amorphous material having a crucible having two first material chambers 21 and a second material chamber 22 composed of a container 13 and having a composition controlled by an arc melting furnace or other suitable method. 1 and 2 were inserted, and airtightness was made by welding or other methods using the lid 12, and then placed in a gas atmosphere sealed container, and each material was melted by using both high-frequency heating and laser heating. After the material is melted, it is quickly controlled to a temperature 50 to 100 ° C. higher than the melting temperature, and the first gas inlet 31 and the second gas inlet 32
, A high-pressure argon gas is allowed to flow into the molten material 1
And the material 2 is discharged from the discharge port, and when it exits the discharge port, the two molten materials are combined in the middle of the flow, passed through a rotating water tank located below, and rapidly cooled and solidified to form a radius. A circular cross-section amorphous composite material having a layered structure with two layers in each direction was prepared. A diagram of the crucible and the rotating water tank is shown in FIG. The produced circular cross-sectional layered amorphous composite material was wound using an automatic winding device, which is also located below. The shape of the discharge port used was the shape shown in FIG. The joints were mechanically strong, the joint surfaces were smooth, and the mixing of materials was limited to very thin boundary layers.

Example 2: N> 2, that is, a case of a layered amorphous composite material having three or more compositions (Example No. 2a). Using an ejection port as shown in FIG.
A thin plate-shaped amorphous composite material having three layers in the radial direction was prepared. The proportions of the components A, B and C were varied. In this case, a good result similar to that of Example 1 was obtained in the bonding state.

[0008]

[Table 1]

[0009]

According to the present invention, [0006] and [000]
As described in [7], a material melting container (crucible) having two or three or more independent chambers (cells), or two or three or more independent material melting containers (crucibles) is used. By enclosing two or three or more different materials with different compositions, dissolving them independently, merging the flowing molten material into a layer at the position emerging from the discharge port, and quenching and solidifying it, thereby radially Having a circular layered tissue structure,
Amorphous composite material could be made. By properly controlling the temperature during the preparation or by applying an appropriate heat treatment after the preparation, a layer of so-called nano-structure in which amorphous is used as a matrix and ultra-fine particles consisting of a crystalline structure are dispersed, and only the amorphous phase A multi-layer amorphous composite material in which layers consisting of the following were mixed was obtained. This composite material has mechanical, magnetic, electrical, chemical, thermal,
It is possible to combine material layers having different characteristics electronically and quantumally, and the application is extremely wide.

[Brief description of the drawings]

FIG. 1 shows a material melting vessel (crucible) having two material chambers on the outside and inside, two gas inlets on the top, and a circular outlet on the bottom. (A) is a front view, and
(B) is a top view.

FIG. 2 shows a view in which a crucible is arranged at a position for discharging a material dissolved in a rotating water tank. The entire apparatus shown (not shown in this figure) is located in a gas atmosphere enclosure and the material is placed in a gas atmosphere, including during melting and flowing. Therefore, it is possible to obtain an amorphous composite material in which impurities are very little mixed.
(A) is a front view and (b) is a side view. When melting materials having different melting temperatures, the temperature of each molten material is independently controlled by a built-in laser heating device or an infrared heating device.

FIG. 3 shows a shape of a discharge port of a material melting container (crucible). (A) is a discharge port having two layers of concentric circular cross sections in the radial direction, and (b) is a discharge port of the same concentric shape arranged so as to have three layers in the radial direction.

[Explanation of symbols]

 11: Container for dissolving material 12: Lid 13: Second container 21: First material chamber 22: Second material chamber 31: First gas inlet 32: Second gas inlet 101: Circular layered material 121: Rotating water tank

Claims (2)

[Claims] 1. A material composed of two compositions is placed in a material container (crucible) having two independent chambers separated by a partition wall or in two independent material containers (crucible). The material of each composition is melted simultaneously and independently, and the melted material is pressurized by high pressure gas or actuation of a mechanical piston (including a combination of gas pressure and mechanical piston). And discharge from the discharge port. The molten materials of the two compositions are combined in a completely molten state or a semi-molten state, near the outlet of the material container, or immediately after leaving the outlet, immediately before rapid cooling and solidification.
Introduced in 1 and rapidly solidified, 2
Circular layered amorphous composite composed of individual compositions, and a so-called circular layered nanostructure having an ultrafine crystal structure (including a structure in which ultrafine crystal phase particles are dispersed in an amorphous matrix) by rapid solidification and heat treatment. A tissue composite material and a further combination thereof are produced in the form of a circular layered [amorphous + nanostructure] composite material. This manufacturing apparatus is used for melting and melting in an inert gas atmosphere.
It is installed in a closed container so that rapid solidification work can be performed, and the melting temperature can be precisely controlled for each material by combining a high frequency melting furnace, laser heating device, and infrared heating device . 2. A material container (crucible) having three or more components and having three or more independent chambers separated by partition walls, or a material container (crucible) having three or more independent materials separated by partition walls. The materials of three or more compositions are melted simultaneously and independently at the same time, and near the discharge port of the material container or immediately after leaving the discharge port, immediately before rapid solidification, and the material of three or more compositions is melted. Has a layered amorphous composite material composed of three or more compositions in the radial direction, which is produced by combining and quenching, and an ultrafine crystal structure by rapid solidification and heat treatment (the ultrafine Including a structure in which crystal phase particles are dispersed), a so-called circular layered nanostructured composite material, and a method of producing a circular layered [amorphous + nanostructured] composite material by further combining them. And, a pressure device, an inert gas atmosphere high frequency melting furnace, a laser heating device, and
A manufacturing device that combines an infrared heating device to precisely control the pressure and melting temperature of each material to produce a circular layered amorphous composite material.