JPS5845303A - Amorphous material - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to metal alloys or alloys, semiconductors and electrolyte amorphous materials as industrial materials.

Amorphous materials have a fundamentally different atomic structure from conventional crystalline materials and have various unique properties that cannot be obtained with conventional crystalline materials. Due to its characteristics, it has a wide range of potential applications in various fields such as electronic engineering, and is attracting a lot of attention.

It goes without saying that all substances are generally amorphous, so by making many substances amorphous, revolutionary changes will occur in all industrial fields. Possibility - Development research to date has shown that amorphous materials have superior properties in terms of horizontal, magnetic, and chemical properties compared to crystalline materials. It's becoming clear.

Looking at various interesting and characteristic properties, nine excellent properties have been found, all of which are superior to those of crystalline materials, and some properties exhibit astonishing values. Therefore, it is believed that amorphous materials have sufficient potential as practical materials in various industrial fields.
It is also expected that new properties will be discovered in the future. 7/Amorphous semiconductor materials have already been put into practical use as electronic devices such as solar cells. Since such materials have short-range order, there are generally differences in their physical and chemical properties, but there are no significant differences in their electronic properties, so they are suitable for use in electronic devices. There has been a lot of interest in its application, and good effects have been obtained in practical applications such as solar cells.

However, amorphous magnetic materials are close to being put into practical use as soft magnetic cores), and have actually achieved good results in transformer magnetic cores, magnetic heads, etc. These characteristics have the advantages of a small coercive force, a large maximum permeability, and a large specific resistance, so it has high expectations as a magnetic material.

Such amorphous materials are produced by a liquid quenching method, a vapor deposition method, a chemical separation method, or the like. For example, as shown in Figure 1, in the liquid quenching method, a certain amount of substance 1
is melted in a container 2 with a nozzle at the tip, and then sprayed by gas pressure from a nozzle 3 onto a rapidly rotating roll 4 to form a ribbon-like, bulk-like material with uniform thickness. To form an object 5, the nucleation from the liquid is to be quickly cooled to a point where crystal growth occurs, thereby making it an amorphous body. In addition to the roll method, centrifugal method is also used for this cooling! There are methods such as spray method. In particular, the one-liquid quenching method requires a quenching operation, and the thickness of the plate depends on the cooling capacity K of the device during the amorphous formation of the material.Of course, it is very difficult to produce a large amorphous material with a wide width. 1. Research and development of manufacturing methods for manufacturing such materials is also being carried out9, and these issues are important in the sense of expanding the range of their use. In particular, it is considered difficult to process strong crystalline materials into complex shapes. 9. When using an amorphous material as a material such as a catalyst, the larger the surface area of the object, the more advantageous it is to dynamically utilize its chemical activity. It is desirable to reduce the shape and increase the specific surface area per unit weight.

If it is possible to make amorphous materials into fine powders, the specific surface area of amorphous materials, which are originally made of materials with a large number of molecules, will be expanded to a large extent, which will have great effects in chemical applications. Yes, the above problem can be solved.

As a solution to these points, the former can be achieved by pulverizing the amorphous material and molding it by some method;
The obtained crystalline fine powder material can be used in the shape of a pot.

In order to turn amorphous materials into aS powder, it is necessary to grind the bulk material before forming it into a ribbon, or to manufacture the material in powder form from the beginning. Powdered amorphous materials can be easily produced.

41- of the present invention is thin film-like or ribbon-like t' as in the conventional case.
#- does not mold bulk amorphous material to produce amorphous elements such as electronic devices, but molds fine powder amorphous material by some mixing method to obtain similar properties. The aim is to create an amorphous element with

A second object of the present invention is to improve the physical or chemical properties of powdered amorphous materials and to expand the range of application of crystalline materials.

Another object of the present invention is to provide the possibility of discovering new physical and chemical properties by using finely powdered amorphous materials.

The advantages of using fine powder and molding it into round materials have already been fully clarified in the case of crystalline materials, and the method has also been established to a certain degree and is widely used in all industrial fields. It's being used.

Therefore, the advantages of molding a fine powder amorphous material in the same manner as in the case of a crystalline material can be considered, and it is considered to be very promising.

In addition, it is thought that the shape effect resulting from the smaller shape will improve characteristics and show new properties, which will produce new effects. ◆In ultrafine crystalline powder, unique and extremely effective phenomena have been discovered in terms of magnetic properties, etc., and these have now been put into practical use as magnetic tapes.

However, there is no problem if you use powdered amorphous to i without molding it, but if you mold it into a certain shape, you will need to mold the material by blending between the fine amorphous powders.
It is important to pay sufficient attention to L and the pressure at that time. This is because the properties of amorphous materials themselves are inherently very sensitive to heat treatment. Of course, it is possible to improve the characteristics by providing a heat escape with a large number of teeth, but first of all, there is a fIi degree range. The selection of the bonding material between the powders is also very important; the bonding material for the casing must not be one that would compromise its properties.

The first embodiment of the present invention utilizes the shape effect of a finely powdered amorphous material alone or by solidifying it without using a tt binder like sugar cubes and in its tt state. .

By using a fine powder amorphous material as a carrier and utilizing the chemically heavy ability of its surface, it can be used as a chemical reaction element such as a catalyst. As already mentioned, when an amorphous material is powdered, its shape becomes smaller, but its specific surface area per unit weight becomes larger.

The appropriate particle size for crystalline powder material is lonm-5Q.
nm, but if the same applies to amorphous materials, the product would originally be quite large.

FIG. 2 shows a second embodiment of the present invention, in which mold powder amorphous material is shaped using a binder.

There are many ways to shape fine powder, but in the case of hot-pressure molding, the crystallization temperature of the material must be taken into consideration because it is amorphous. If possible, it is necessary to use a relatively low S. It is desirable to perform the molding process at a temperature of 30°C, which is, of course, fully possible, and the room temperature pressurizing process is promising.

In the figure, numeral 11 indicates an amorphous material or mixture according to the present invention. 12 is the fine powder amorphous particles 113 is the binder %14I/i The interface between the amorphous particles and the binder 1
In other words, it indicates a grain boundary.

As is clear from this, if the fine powder used is an amorphous semiconductor, the molded product will be a material that exhibits semiconductor properties, but if it is an elongated crystalline magnetic material, it will exhibit magnetic properties. Becomes a material.

The advantage of such a forming process is that it is possible to form a crystalline material having any shape from a large O to a small 4, and the degree of freedom in rounding design is extremely high. This point is especially important when the shape becomes complicated.
This has the advantage that it is now possible to produce a round shape 4 more easily in amorphous materials.

It is possible to actively utilize the shape effect, surface effect, grain boundary effect, etc. of the particle made from fine powder by molding. It is thought that the 411 properties of fine powder amorphous materials are largely influenced by grain boundary phenomena, as in the case of crystalline materials. However, it can be expected to find new applications in electronic devices, such as the potential barrier of grain boundaries and the insulation properties of grain boundary layers.

Figure JllIa shows a third embodiment of the present invention, in which a mixture 22 of amorphous amorphous powder and binder is thinly coated onto a certain type of substrate 21 by a method of spraying. It is formed into a shape and shows nine structures. At this time, the substrate used is something other than amorphous.

This type of molding method can be used to create a composite structure of crystalline and amorphous materials.*If formed on something like 9-poly film, it is possible to obtain the characteristics of a thin or thick film. . For example, a new possibility is that by mixing fine powder amorphous magnetic material with the flank and applying it to a glass film or an aluminum disc, it can be used as a material for a magnetic sickle. There is. When looking at amorphous magnetic materials from an application perspective, it is well predicted that domain walls can easily move due to the homogeneity of the material, and the ideal 1IiiiJ! i
It is possible to obtain a round material group that has the characteristics of a porcelain table. but,
A. As a sickle material, it has not yet been developed because it requires a high coercive force. Therefore, it is necessary to mix a finely powdered amorphous material with ItliI and disperse it uniformly. K
Therefore, it is possible to produce an amorphous material with I4 coercive force69, and by adopting the above-mentioned composite structure, it is possible to widen the range of applications beyond just IJiII-like materials.

Figure JllIJ shows the fourth embodiment of the present invention, and Figure 2 shows the surface of the fine powder amorphous formed product manufactured by the nine methods, and Figure 9 shows the fourth embodiment of the present invention. A composite structure is shown in which a thin round amorphous layer is formed on top of a round thin layer in the same manner as the method shown in FIG.

Here, MU is particulate, ribbon-like O9 is a film-like fine powder amorphous layer, B is a crystalline film-like formation 31 formed on the MU, and a is a powdery amorphous material. The binding material for it is the other moldy non-cloudy material, and the filling is the binding material for it.

The binding material β and 34 are applied even if they are the same substance, and the binding material β and 9 are applied even if they are different substances.

The first advantage of using such a composite structure is that it is possible to improve the properties of the 11112t4 due to the composite effect.
For example, the percentage can be easily controlled.

41. Such a composite structure is of great importance in an amorphous-electroconductor configuration. That is, the multilayer composite structure allows the calculator to be freely controlled.

The lss diagram shows the first embodiment of the present invention,
The molded amorphous material 41 and other OIL powder amorphous materials are uniformly dispersed and mixed in a binder 43 and processed to form a composite structure of nine different types of dispersed materials.

Here, the acids of the mold-containing amorphous materials 41 and 42 may be the same, or they may be different.

The advantages in this case are the same as those shown in the fourth embodiment. Therefore, in the present invention, a mold-free amorphous material is produced and then molded using a binder or the like. It is possible to improve the properties and make new improvements, giving the possibility of developing new properties, thereby expanding the range of applications of amorphous materials. It is.

[Brief explanation of the drawing]

Figure 1s1 is an explanatory diagram showing a normal amorphous material tDR manufacturing apparatus and a ribbon-shaped amorphous material, Figure 2 is an explanatory diagram of a second embodiment of the present invention, and Figure 3 is an explanatory diagram of a third embodiment of the present invention. Explanatory diagram, 4th
・The figure is an explanatory diagram of the fourth embodiment of the present invention, and the JI5 figure is an explanatory diagram of the $115 depth example 0 of the present invention. Book q item book 5 books

Claims (1)

[Claims] Gold GT9 is made by forming a fine powder of an amorphous material such as an alloy, a semiconductor, or an II electric material, or by combining the fine powder of this amorphous material with a composite material, and then molding it into a material. .