KR20150122049A - Method of fabricating ordered structure of ceramic composites and ceramic composites fabricated by the method - Google Patents

Abstract

The present invention relates to a method for producing a ceramic composite for uniformly aligning plate-shaped powder and a ceramic composite produced by the same. The method comprises the steps of: mixing ceramic powder and a resin which have different aspect ratios; aligning mixed ceramic powder, mixed by rolling a mixture of the ceramic powder and the resin in one direction, in a horizontal direction; folding the mixture including the ceramic powder which is aligned in the horizontal direction; and additionally aligning the ceramic powder in the horizontal direction by rolling the folded mixture in at least one direction. According to the present invention, the ceramic composite with excellent mechanical properties, light weight, and high strength can be produced by uniformly aligning the plate-shaped ceramic powder in one direction.

Description

Technical Field [0001] The present invention relates to a ceramic composite material for uniformly orienting a powder of a plate-like powder, and a ceramic composite material produced by the method of manufacturing the same. BACKGROUND ART < RTI ID = 0.0 >

The present invention relates to a ceramic composite and a method of manufacturing the same, and more particularly, to a ceramic composite and a method for manufacturing the ceramic composite, And a ceramic composite body produced by the method.

Generally, various types of loads and shocks accompanied by changes in pressure in various structures of machinery, construction, and civil engineering, components for electronic devices, such as aircrafts, automobiles, and railroad vehicles, as well as temperature fluctuations and extreme environments such as scratches In this case, the structure should be designed to withstand this.

In particular, new materials with mechanical strength that can withstand extreme environments have been researched and developed. Despite the emergence of some new materials, however, due to price competitiveness and the scarcity of materials, there were significant limitations to be universally used in the market.

Therefore, in recent years, the development of new composite materials or structures that can replace existing automobile body panels has been accelerated. The trend of such technology development is not only in the automobile field, but also in the transportation sector such as aircraft and railway, Construction, and civil engineering.

In recent years, in order to develop new functional materials, attempts have been made to apply excellent structures existing in natural living bodies having light weight and high mechanical strength characteristics. However, in the case of the functional structure existing in the natural living body, attempts have been made to analyze it carefully by various pioneering scholars. However, structural analysis and simplification are carried out in order to generalize it from the structure shown in nature to general use And because of technical difficulties in the production of actual products, it is still in a state of failing to obtain satisfactory results.

Korean Registered Patent No. 1151209 (May 31, 2012) Korean Patent Publication No. 1988-0003871 (May 30, 1988) Korean Registered Patent No. 1343941 (Dec. 16, 2013)

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a ceramic composite material for uniformly orienting a plate-like powder in which plate-like ceramic powder having different aspect ratios are mixed with resin, .

The present invention provides a ceramic composite produced by the above production method.

The method of manufacturing a ceramic composite according to embodiments of the present invention includes: mixing ceramic powder and resin having different aspect ratios; Rolling the mixture of ceramic powder and resin in at least one direction to horizontally orient the mixed ceramic powder; Folding the mixture in which the ceramic powder is horizontally oriented; And rolling the folded mixture in at least one direction to further horizontally orient the ceramic powder.

According to another embodiment of the present invention, there is provided a method of manufacturing a ceramic composite, comprising: mixing a ceramic powder and a resin having different aspect ratios; Rolling the mixture of ceramic powder and resin in at least one direction to horizontally orient the mixed ceramic powder; Stacking the ceramic powder so that the horizontally oriented mixture is at least two layers; And rolling the stacked plurality of the mixture in at least one direction to horizontally further orient the ceramic powder.

In the embodiments of the present invention, in the step of mixing the ceramic powder and the resin, the ceramic powder may have an aspect ratio of 1 or more and a weight fraction of the ceramic powder in the mixture may be 50 to 95. [ The ceramic powder may be selected from at least one of plate-like alumina, boron nitride, mica, and clay.

In the embodiments of the present invention, the mixing of the ceramic powder and the resin may change the mixing method of the ceramic powder and the resin depending on the viscosity of the resin.

In the embodiments of the present invention, it may further include a defoaming step for removing air bubbles generated when mixing the ceramic powder and the resin after mixing the ceramic powder and the resin.

In the embodiments of the present invention, the step of horizontally orienting the mixed ceramic powder may be performed by horizontally and evenly kneading the mixture of the ceramic powder and the resin, and then rolling the mixture in at least two directions, And the powder is horizontally oriented.

In the embodiments of the present invention, the step of horizontally orienting the mixed ceramic powder may include the step of applying heat to the mixture to prevent the fluidity of the ceramic powder in the mixture from deteriorating due to the viscosity of the resin .

In embodiments of the present invention, the step of further orienting the ceramic powder horizontally may further include heating the mixture to cure the resin in the mixture. Here, the method may further include pressing the mixture to increase the orientation uniformity of the mixture.

In embodiments of the present invention, the step of folding the horizontally oriented mixture of ceramic powder and rolling the folded mixture at least in one direction to further orient the ceramic powder horizontally may be pre- Repeat for more times.

In embodiments of the present invention, the ceramic powder may be stacked so that the horizontally oriented mixture is at least two or more layers, and rolling the stacked plurality of the mixtures in at least one direction The step of horizontally further orienting the ceramic powder is repeated a predetermined number of times or more.

According to the above-described method of producing a ceramic composite body for uniform orientation of a plate-like powder and a ceramic composite body produced by the manufacturing method, the following effects can be obtained.

First, by uniformly orienting the plate-like ceramic powder in one direction, it is possible to produce a lightweight, high-strength ceramic composite excellent in characteristics.

Second, a lightweight and high-strength ceramic composite having improved characteristics can be manufactured through additional orientation process of folding or laminating a mixture of ceramic powder and resin uniformly oriented in one direction.

Third, it is possible to further improve the uniformity of orientation by repeating a rolling process for further orientation and a process of folding or laminating for a predetermined number of times or more.

Fourth, large-sized products can be easily manufactured using a lightweight, high-strength ceramic composite.

1 is a flowchart illustrating a method of manufacturing a ceramic composite body according to an embodiment of the present invention;
2 is a flowchart illustrating a method of manufacturing a ceramic composite body according to another embodiment of the present invention
Figures 3a and 3b are diagrams of rolling devices for orienting a ceramic powder horizontally
4A is a photograph showing a specimen including a ceramic composite manufactured according to an experimental example of the present invention
FIG. 4B is a photograph showing a specimen including a ceramic composite prepared according to a comparative example of the present invention
5A through 5C are SEM photographs showing cross sections of the ceramic composite prepared according to the experimental examples of the present invention
6 is a graph showing mechanical strength of a ceramic composite prepared according to Experimental Examples of the present invention
7 is a SEM photograph showing a section of a ceramic composite produced according to a comparative example of the present invention

A ceramic composite body for uniformly orienting a plate-like powder according to embodiments of the present invention and a ceramic composite body produced by the method will be described in detail with reference to the accompanying drawings. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. In the accompanying drawings, the dimensions of the structures are enlarged to illustrate the present invention, and are actually shown in a smaller scale than the actual dimensions in order to understand the schematic configuration.

Also, the terms first and second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. On the other hand, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

FIG. 1 is a flowchart illustrating a method of manufacturing a ceramic composite body according to an embodiment of the present invention, and FIG. 2 is a flowchart illustrating a method of manufacturing a ceramic composite body according to another embodiment of the present invention.

Referring to FIG. 1, according to the method of manufacturing a ceramic composite body according to the embodiments of the present invention, it is possible to obtain a lightweight, high-strength ceramic composite body excellent in characteristics by uniformly orienting the ceramic ceramic powder in one direction.

To this end, the method of manufacturing a ceramic composite according to embodiments of the present invention includes mixing ceramic powder and resin having different aspect ratios (S100), rolling a mixture of ceramic powder and resin, (S110) of folding the ceramic powder, S120 (folding) the mixture in which the ceramic powder is horizontally oriented (S120), and rolling the folded mixture to further orient the ceramic powder horizontally (S130).

Specifically, mixing the ceramic powder and the resin having different aspect ratios is a step of uniformly mixing the anisotropic ceramic powder and the resin.

In the mixing step of the ceramic powder and the resin according to the embodiment of the present invention, a mechanical stirring device or a centrifugal mixing device for mixing the high viscosity materials used in the mixing step of the resin can be used, and a method Any method may be applied.

Here, the ceramic powder has an aspect ratio of 1 or more. Particularly, the larger the aspect ratio of the ceramic powder, the greater the effect of orientation and / or the improvement of the physical properties of the composite obtained therefrom. Therefore, it is preferable that the aspect ratio of the ceramic powder is relatively large.

Further, the ceramic powder has a weight fraction of 50 to 95 in the mixture. This is because, as the content of the ceramic powder increases, the uniformity of the mixing is greatly reduced, and the ceramic composite powder does not have the physical properties as the content of the ceramic powder decreases.

The ceramic powder may be selected from at least one of plate-like alumina, boron nitride, mica, and clay. However, it is not said that the ceramic powder is limited to the above kind.

According to embodiments of the present invention, the method may further include a defoaming step of removing bubbles generated when mixing the ceramic powder and the resin after mixing the ceramic powder and the resin. In the defoaming step, it is possible to mix additives such as a curing agent, a thickener, a dispersant, and a release agent depending on the kind of the resin.

The step of horizontally orienting the ceramic powder by rolling a mixture of the ceramic powder and the resin is a step of rolling the mixture of the ceramic powder and the resin in at least one direction to horizontally orient the mixed ceramic powder .

The ceramic powder of the mixture can be horizontally oriented in such a manner that the mixture of the ceramic powder and the resin is uniformly kneaded horizontally and then rolled in at least one direction. That is, the sheet-like ceramic powder as a component of the composite is horizontally aligned using a cylindrical roll.

The thinner the sheet to be formed in the horizontal orientation step, the greater the orientation effect of the ceramic powder. At this time, the size and thickness of the sheet to be formed may vary depending on the size of the roller and the rolling strength, and therefore, the size and thickness of the final sheet may be selected.

On the other hand, FIGS. 3A and 3B are diagrams for rolling apparatuses for rolling and horizontally orienting a ceramic powder.

Referring to FIG. 3A, a rolling apparatus 100 includes a support plate 110 and a roller 120 disposed on the upper portion of the support and rotating, and a ceramic powder- So as to pass between the roller 110 and the roller 120. At this time, the mixture 10 of the ceramic powder and the resin is horizontally and horizontally oriented while moving from the one side to the other side between the support table 110 and the roller 120. Here, the mixture 10 of the ceramic powder and the resin may be repeatedly passed between the support table 110 and the roller 120 to be further oriented in the horizontal direction.

It is also possible to fix the mixture 10 of ceramic powder and resin on the supporting table 110 by moving the roller 120 while keeping the roller 120 fixed and rotating the ceramic powder- The ceramic powder may be horizontally aligned by rolling.

Referring to FIG. 3B, the rolling apparatus 200 does not have a support 110, but includes an upper roller 210 and a lower roller 220 to rotate the mixture 20 of the ceramic powder and the resin, And may be passed between the roller 210 and the lower roller 220 so that the ceramic powder is oriented in the horizontal direction. That is, the mixture 20 of the ceramic powder and the resin can be aligned horizontally in a rolling manner in both directions.

In embodiments of the present invention, the fluidity of the ceramic powder in the mixture may be lowered due to the viscosity of the resin contained in the mixture, and the horizontal orientation may be deteriorated. Accordingly, it is possible to increase the fluidity of the ceramic powder by further heating the mixture while horizontally orienting the ceramic powder. For example, the support 110 of the rolling apparatus 100, 200 and the rollers 120, 210, 220 may heat themselves to the mixture 10, 20 in a manner that can self- And heat may be applied to the mixture 10, 20 by a heater (not shown) provided separately from the rolling apparatus 100, 200.

Referring again to FIG. 1, the step of folding the mixture in which the ceramic powder is oriented horizontally is a step of folding the mixture in half or more to form a plurality of stages. That is, if the thickness of the mixture is decreased in the step of moving the ceramic horizontally, the horizontal orientation of the ceramic powder may not be uniform. Therefore, in order to induce the horizontal orientation of the ceramic powder through rolling once again in the next step, Is first thickened.

Subsequently, rolling the folded mixture to further orient the ceramic powder horizontally is a step of once again rolling the thickened mixture to increase the horizontal orientation of the ceramic powder. Particularly, in this step, it can be regarded as a repeated orientation process in which the first orientation step is followed by rolling once again. Through this step, the ceramic powder (particles) in the mixture are uniformly oriented as a whole and the orientation non- Can be solved.

On the other hand, in the embodiments of the present invention, it is also possible to fold the horizontally oriented mixture and rolling the folded mixture in at least one direction to horizontally further orient the ceramic powder by a predetermined number of times or more Repeat. For example, the repeating process repeats the number of times to derive a desired mechanical strength or characteristic of the user. In addition, the number of repetition may be changed according to the process conditions such as the thickness of the mixture or the composition ratio of the mixture.

Likewise, in other embodiments of the present invention, there is provided a method of manufacturing a laminate, comprising stacking a horizontally oriented mixture to be at least two layers, rolling the laminated plural mixtures in at least one direction, The step of further orienting the ceramic powder horizontally is repeated a predetermined number of times or more. For example, the repeating process repeats the number of times to derive a desired mechanical strength or characteristic of the user. In addition, the number of repetition may be changed according to the process conditions such as the thickness of the mixture or the composition ratio of the mixture.

That is, in the embodiments of the present invention, data on the result of performing the above iterative process 30 times is presented, but it is not limited to the number of times.

The method of manufacturing a ceramic composite according to embodiments of the present invention further includes a step (S140) of curing the resin by applying heat to the further oriented mixture.

The step of curing the resin is intended to cure the resin, which is a component of the composite, by heating and pressing the resin to form a sintered ceramic composite molding. The curing step may include or omit process steps depending on the type of resin. On the other hand, at this time, the heating temperature is a temperature suitable for promoting the curing of the added resin and is determined by the kind of the resin. The epoxy resin used in the examples of the present invention can be heated in the range of 40 to 250 占 폚.

The pressure can be adjusted in accordance with the kind and the characteristics of the powder and the resin. The pressure of the alumina powder used in the embodiment of the present invention In the case of epoxy resin, pressurization can be carried out in the range of 1 to 10 MPa. For example, the sample can be pressurized with a pressurizing device such as a press.

Referring to FIG. 2, a method of manufacturing a ceramic composite body according to an embodiment of the present invention includes mixing ceramic powder having different aspect ratios with resin (S200), rolling a mixture of ceramic powder and resin, A step S210 of horizontally orienting the powder, a step S220 of stacking the horizontally oriented mixture of the ceramic powder in a plurality of stages, rolling the stacked mixture to further orient the ceramic powder horizontally (S230) and curing the resin by applying heat to the mixture (S240).

Here, the manufacturing method of the ceramic composite body according to FIG. 2 is different from the manufacturing method of the ceramic composite body described with reference to FIG. 1 except for the step S220 of stacking the horizontally oriented mixture of the ceramic powder at a plurality of stages The description of the remaining steps will be omitted and only the step S220 of stacking the horizontally oriented mixture of the ceramic powder in a plurality of stages will be described.

This step (S220) has the same purpose as the step of folding the mixture in which the ceramic powder is horizontally oriented. That is, if the thickness of the mixture is decreased in the step of moving the ceramic horizontally, the horizontal orientation of the ceramic powder may not be uniform. Therefore, in order to induce the horizontal orientation of the ceramic powder through rolling once more in the next step, Are laminated to thicken the mixture.

According to such a manufacturing method, a plate-like ceramic powder is uniformly oriented in one direction, and thus a ceramic composite material having excellent characteristics and light weight and high strength can be produced.

Experimental examples and comparative examples of the ceramic composite according to the embodiments of the present invention are as follows.

Experimental Example 1

25 g of plate-shaped alumina powder and 7 g of epoxy resin were mixed for 1 minute in a centrifugal mixer for 1 minute, and the degassing process was continued for 1 minute continuously. The mixture withdrawn from the centrifugal mixer was installed on both ends with a guide having a height of 2 mm, and was then reciprocally rolled in one direction before and after using a roller having a diameter of 5 cm and a width of 20 cm. The mixed sample, which was formed into a sheet with a thickness of 2 mm, was cut in half, laminated, and then subjected to the same rolling process. The rolling process was carried out at 5, 10, 15, 20, and 30 times, respectively. Each specimen was pressurized at a pressure of 4 MPa in a hot pressing press and heated to 100 ° C. After elevated temperature, it was maintained at 100 ℃ for 1 hour. After cooling to room temperature, the specimen was recovered. As the number of rolling process increases, the arrangement of alumina particles becomes uniform and the strength increases. The fracture strength calculated by 3 - point bending strength measurement for the specimens subjected to 30 rolling was measured to be 180 MPa.

Comparative Example 1

25 g and 7 g of plate-shaped alumina powder and epoxy resin containing a curing agent were prepared, respectively. Epoxy was added to the alumina powder and mixed using a mechanical stirring apparatus. The mixture was installed at both ends with a guide having a height of 2 mm, and was then reciprocally rolled in one direction before and after using a roller having a diameter of 5 cm and a width of 20 cm. The mixed sample, which was formed into a sheet with a thickness of 2 mm, was cut in half, laminated, and then subjected to the same rolling process. The rolling process was carried out at 5, 10, 15, 20 and 30 times, respectively. Each of the specimens was pressurized at a pressure of 4 MPa in a hot press, and the temperature was raised to 100 ° C. After elevated temperature, it was maintained at 100 ℃ for 1 hour. After cooling to room temperature, the specimen was recovered.

Comparative Example 2

25 g of plate-shaped alumina powder and 7 g of epoxy resin were mixed for 1 minute in a centrifugal mixer for 1 minute, and the degassing process was continued for 1 minute continuously. The mixture withdrawn from the centrifugal mixing apparatus was rolled once in the same manner as in Experimental Example 1 and held at 100 DEG C and 4 MPa pressure for 1 hour in a hot press. On the other hand, the fracture strength of the specimen obtained by the three-point bending strength measurement at room temperature was 90 MPa.

FIG. 4A is a photograph of a specimen including a ceramic composite manufactured according to an experimental example of the present invention, and FIG. 4B is a photograph of a specimen including a ceramic composite manufactured according to a comparative example of the present invention.

Referring to FIG. 4A, which is a photograph of a specimen (ceramic composite) manufactured according to an experimental example of the present invention, it can be seen that the arrangement of alumina particles is uniform. The fracture strength calculated by the three-point bending strength measurement of the specimen prepared according to the experimental example was measured to be 180 MPa.

On the other hand, referring to FIG. 4B, which is a photograph of the specimen prepared according to the comparative example of the present invention, the surface was stained and the microstructure of the dark part and the bright part was observed, which revealed that the resin was unevenly distributed The fracture strength was 60 MPa.

FIGS. 5A to 5C are SEM photographs showing cross sections of the ceramic composite body manufactured according to the experimental examples of the present invention, and FIG. 6 is a graph showing mechanical strength of the ceramic composite body manufactured according to the experimental examples of the present invention. And FIG. 7 is a SEM photograph showing a cross-section of a ceramic composite produced according to a comparative example of the present invention.

Referring to FIG. 5A, it can be seen that the cross section of the specimen (ceramic composite) manufactured according to the experimental example of the present invention becomes uniform in arrangement of alumina particles as the number of rolling processes increases. Specifically, the arrangement of the particles of the specimen (ceramic composite) in which the rolling process was repeated 5 times, 10 times, 20 times, and 30 times was repeated at least 20 times to find that the arrangement of the alumina particles became uniform have. Preferably 30 times or more, to arrange the particles uniformly in the specimen (ceramic composite) and minimize the aggregation of the particles.

5B and 5C are cross-sectional views of a specimen subjected to rolling for 30 times. As the number of rolling increases, the strength increases. The fracture strength calculated by 3-point bending strength measurement for the specimen subjected to 30 rolling was measured to be 200 MPa or more.

In particular, referring to FIG. 5C in which the photograph of FIG. 5B is magnified 6 times, it is confirmed that the ceramic powder having a relatively large aspect ratio is uniformly horizontally aligned in the mixture.

Referring to FIG. 6, the mechanical strength (fracture strength) of the test specimen (ceramic composite body) subjected to the rolling process five times, 20 times, and 30 times is examined. The specimen having the strength of 180 MPa or more is repeated 20 times or more The results are shown in Fig.

On the other hand, the result of the mechanical strength by the rolling process such as the 20 times repetition or the 30 repetition is derived from the result of the experiment under the specific condition, so the number of repetition under different conditions may vary for the same mechanical strength. Therefore, the range of the right is not limited by the number of times of repetition, but may be set in advance so that the user repeats the desired number of times to derive the desired mechanical strength or characteristic. In addition, the number of repetitions of the process may be changed depending on the process conditions such as the thickness of the mixture or the composition ratio of the mixture.

Referring to FIG. 7, the cross section of the specimen was observed by an electron microscope. As a result, it was confirmed that the intergranular orientation of the powder was hardly achieved and that the powder was agglomerated strongly. The fracture strength of the specimen obtained by the three - point bending strength measurement at room temperature was 90 MPa.

As described above, the ceramic composite body produced by the manufacturing method of the present invention has characteristics of light weight, high strength, excellent in characteristics by uniformly orienting the ceramic ceramic powder in the horizontal direction. Also, a large-sized non-sintered composite material product can be easily manufactured by using the ceramic composite material according to the embodiments of the present invention.

While the present invention has been described in connection with what is presently considered to be practical and exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

10: Mixture of ceramic powder and resin
100, 200: rolling device
110: Support plate 120: Roller
210: upper roller 220: lower roller

Claims (13)

Mixing the ceramic powder and the resin having different aspect ratios;
Rolling the mixture of ceramic powder and resin in at least one direction to horizontally orient the mixed ceramic powder;
Folding the mixture in which the ceramic powder is horizontally oriented; And
And rolling the folded mixture in at least one direction to further orientate the ceramic powder horizontally. Mixing the ceramic powder and the resin having different aspect ratios;
Rolling the mixture of ceramic powder and resin in at least one direction to horizontally orient the mixed ceramic powder;
Stacking the ceramic powder so that the horizontally oriented mixture is at least two layers; And
And rolling the plurality of stacked mixtures in at least one direction to horizontally further orient the ceramic powder. The method according to claim 1 or 2, wherein in the step of mixing the ceramic powder and the resin
Wherein the ceramic powder has an aspect ratio of 1 or more and a weight fraction of the ceramic powder in the mixture is 50 to 95. < Desc / Clms Page number 20 > The method according to claim 1 or 2, wherein in the step of mixing the ceramic powder and the resin
Wherein the ceramic powder is selected from at least one of plate-like alumina, boron nitride, mica, and clay. 3. The method of claim 1 or 2, wherein mixing the ceramic powder and the resin comprises:
Wherein the mixing method of the ceramic powder and the resin is changed according to the viscosity of the resin. 3. The method of claim 1 or 2, wherein after mixing the ceramic powder and the resin
Further comprising a defoaming step of removing bubbles generated when the ceramic powder and the resin are mixed with each other. The method of any one of the preceding claims, wherein orienting the mixed ceramic powder horizontally
Wherein the ceramic powder of the mixture is horizontally oriented in such a manner that the mixture of the ceramic powder and the resin is evenly and horizontally oriented and then rolled in both directions. The method of any one of the preceding claims, wherein orienting the mixed ceramic powder horizontally
Further comprising the step of applying heat to the mixture to prevent the fluidity of the ceramic powder in the mixture from being lowered due to the viscosity of the resin. The method according to claim 1 or 2, further comprising the step of horizontally further orienting the ceramic powder
Further comprising the step of applying heat to the mixture to cure the resin in the mixture. 10. The method of claim 9, wherein curing the resin in the mixture
Further comprising the step of pressing the mixture to increase the orientation uniformity of the mixture. The method according to claim 1,
Folding the horizontally oriented mixture of the ceramic powder and rolling the folded mixture at least in one direction to horizontally further orient the ceramic powder for a predetermined number of times or more. ≪ / RTI > 3. The method of claim 2,
Stacking the ceramic powder so that the horizontally oriented mixture is at least two layers and rolling the laminated plural mixtures in at least one direction to further orient the ceramic powder horizontally Wherein the step of repeating the step is repeated a predetermined number of times or more. A ceramic composite produced by the method of any one of claims 1 to 2.

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