JPH0813712B2 - Carbon material - Google Patents
Carbon materialInfo
- Publication number
- JPH0813712B2 JPH0813712B2 JP63097116A JP9711688A JPH0813712B2 JP H0813712 B2 JPH0813712 B2 JP H0813712B2 JP 63097116 A JP63097116 A JP 63097116A JP 9711688 A JP9711688 A JP 9711688A JP H0813712 B2 JPH0813712 B2 JP H0813712B2
- Authority
- JP
- Japan
- Prior art keywords
- carbon
- carbon material
- pitch
- pressure
- molded body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000003575 carbonaceous material Substances 0.000 title claims description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 18
- 229910052799 carbon Inorganic materials 0.000 claims description 18
- 229920005989 resin Polymers 0.000 claims description 10
- 239000011347 resin Substances 0.000 claims description 10
- 229920001187 thermosetting polymer Polymers 0.000 claims description 9
- 238000010304 firing Methods 0.000 claims description 2
- XPFVYQJUAUNWIW-UHFFFAOYSA-N furfuryl alcohol Chemical compound OCC1=CC=CO1 XPFVYQJUAUNWIW-UHFFFAOYSA-N 0.000 description 24
- 239000007770 graphite material Substances 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 7
- 238000005470 impregnation Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 239000013585 weight reducing agent Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000001590 oxidative effect Effects 0.000 description 4
- 239000011148 porous material Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/4505—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements characterised by the method of application
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Products (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は炭素材料に関する。TECHNICAL FIELD The present invention relates to a carbon material.
各種のセラミック材料のうち、例えば炭素材料は熱や
電気の良導体であり、耐熱性に優れ、特に高温での強度
劣化がないことから高温用材料として使用されている。Among various ceramic materials, a carbon material, for example, is a good conductor of heat and electricity, has excellent heat resistance, and has no strength deterioration particularly at high temperatures, and is therefore used as a high temperature material.
他方、炭素材料は多孔質であるため、機械的強度が充
分でなく、容易に酸化されて消耗するという欠点を有し
ている。このため、従来から多くの研究者が高密度化に
より優れた特性を有する炭素材料を開発しようとして永
年努力を重ねてきた。On the other hand, since the carbon material is porous, it has insufficient mechanical strength and is easily oxidized and consumed. For this reason, many researchers have been making efforts for many years to develop a carbon material having excellent characteristics by increasing the density.
炭素材料を高密度化するには、骨材粒子の充填密度を
大きくしたり、密度の高い骨材を用いることが一般的に
行われている。In order to increase the density of the carbon material, it is common practice to increase the packing density of aggregate particles or to use an aggregate having a high density.
また、炭素材料の気孔にピッチを含浸することなどが
考えられていた。従来のピッチ含浸処理は耐圧容器内に
ピッチ含浸液及び炭素成形体を収容し、加圧空気を利用
してピッチ含浸液を直接加圧するという方法により行わ
れていた。この際、ピッチ含浸液を80℃以上に加熱した
うえで、加圧空気の圧力を20kg/cm2以下に設定してい
た。Further, it has been considered to impregnate the pores of the carbon material with pitch. The conventional pitch impregnation treatment has been carried out by a method in which a pitch impregnating liquid and a carbon molded body are housed in a pressure resistant container and the pitch impregnating liquid is directly pressurized using pressurized air. At this time, the pitch impregnation liquid was heated to 80 ° C. or higher, and the pressure of the pressurized air was set to 20 kg / cm 2 or less.
しかしながら、上述した方法ではピッチが含浸される
のは炭素成形体の開気孔内表面の80％未満であり、充分
な含浸が行われるとはいえず、機械的強度や耐酸化性を
それほど向上させることができなかった。However, in the above-mentioned method, the pitch is impregnated with less than 80% of the inner surface of the open pores of the carbon molded body, and it cannot be said that sufficient impregnation is performed, and the mechanical strength and the oxidation resistance are improved so much. I couldn't.
本発明は上記問題点を解決するためになされたもので
あり、炭素材料に代表される多孔質のセラミック成形体
にタール、ピッチ又は熱硬化性樹脂を充分に含浸させ、
機械的強度や耐酸化性の向上を達成することを目的とす
る。The present invention has been made to solve the above problems, tar, pitch or thermosetting resin is sufficiently impregnated into a porous ceramic molded body represented by a carbon material,
The purpose is to achieve improvement in mechanical strength and oxidation resistance.
本発明の炭素材料は、多孔質の炭素成形体にタール、
ピッチ又は熱硬化性樹脂を含浸させ、硬化、焼成および
純化処理してなる炭素材料であって、見掛け気孔率が９
％以下であることを特徴とするものである。The carbon material of the present invention is a porous carbon molded body containing tar,
A carbon material obtained by impregnating pitch or thermosetting resin, curing, firing and purification treatment, and having an apparent porosity of 9
% Or less.
また、本発明の炭素材料の製造方法は、耐圧容器内に
圧力伝達液を収容し、伸縮性材料の内部にタール、ピッ
チ又は熱硬化性樹脂及び開気孔を有する炭素成形体を収
容して圧力伝達液中に浸漬し、圧力伝達液及び伸縮性材
料を介してタール、ピッチ又は熱硬化性樹脂に20kg/cm2
以上の圧力を加えることを特徴とするものである。Further, the method for producing a carbon material of the present invention, the pressure transmitting liquid is contained in the pressure resistant container, the tar, the pitch or the thermosetting resin and the carbon molded body having open pores are contained in the stretchable material and the pressure is applied. 20kg / cm 2 in tar, pitch or thermosetting resin after being immersed in transfer liquid and pressure transfer liquid and stretchable material
The above-mentioned pressure is applied.
なお、本発明の炭素材料としては、例えばアルミ蒸着
用又はCZ用の黒鉛ルツボ、ヒーター、サセプタ用基材、
液相成長用ボート、プラズマCVD用電極などを挙げるこ
とができる。As the carbon material of the present invention, for example, aluminum crucible for crucible for vapor deposition or CZ, heater, susceptor base material,
Examples thereof include a liquid phase growth boat and an electrode for plasma CVD.
本発明において、熱硬化性樹脂としては、レジン、フ
ルフリルアルコールなどを挙げることができる。このう
ちでも特にフルフリルアルコールなどの熱硬化性樹脂が
最適である。In the present invention, examples of the thermosetting resin include resin and furfuryl alcohol. Of these, thermosetting resins such as furfuryl alcohol are most suitable.
本発明方法において、圧力容器内に収容される圧力伝
達液としては、例えば水、アルコール、油などを挙げる
ことができる。また、伸縮性材料としては例えばラバー
を挙げることができる。すなわち、いわゆるラバープレ
ス法によりタール、ピッチ又は熱硬化性樹脂を含浸させ
るのが最善の方法である。この際、冷間のラバープレス
法でもよいが、タール、ピッチなどを使用する場合に
は、100〜280℃に加熱して含浸させることが望ましい。
また、含浸圧力を20kg/cm2以上としたのは、20kg/cm2未
満では充分に含浸を行うことができないためである。含
浸圧力は、特に50kg/cm2であることが望ましい。In the method of the present invention, examples of the pressure transmitting liquid contained in the pressure vessel include water, alcohol, oil and the like. The elastic material may be rubber, for example. That is, the best method is to impregnate tar, pitch or thermosetting resin by the so-called rubber pressing method. At this time, a cold rubber press method may be used, but when tar, pitch, etc. are used, it is desirable to heat them to 100 to 280 ° C. to impregnate them.
Moreover, the reason why the impregnation pressure is set to 20 kg / cm 2 or more is that impregnation cannot be sufficiently performed when the pressure is less than 20 kg / cm 2 . The impregnation pressure is preferably 50 kg / cm 2 .
本発明の炭素材料は、多孔質の炭素成形体にタール、
ピッチ又は熱硬化性樹脂を含浸させ、硬化、焼成および
純化処理した状態での見掛け気孔率が９％以下であるの
で、機械的強度や耐酸化性が著しく向上する。The carbon material of the present invention is a porous carbon molded body containing tar,
Since the apparent porosity in the state of being impregnated with pitch or thermosetting resin, cured, baked and purified is 9% or less, mechanical strength and oxidation resistance are remarkably improved.
以下、本発明の実施例を説明する。 Examples of the present invention will be described below.
第１表に示す４種の炭素成形体について、第１図の冷
間静水圧プレス式の含浸装置を使用し、以下のようにし
てフルフリルアルコールを含浸させて黒鉛材料を製造し
た。The four types of carbon compacts shown in Table 1 were impregnated with furfuryl alcohol in the following manner using the cold isostatic press type impregnating device of FIG. 1 to produce graphite materials.
第１図において、耐圧容器１内には水２が収容されて
いる。この水２の中にラバー３を介してフルフリルアル
コール４及び炭素成形体５が収容される。In FIG. 1, water 2 is contained in a pressure vessel 1. Furfuryl alcohol 4 and carbon molded body 5 are accommodated in this water 2 via rubber 3.
まず、ラバー３内に炭素成形体５を入れ、10分間で30
Torr以下まで減圧した後、この中にフルフリルアルコー
ル４を入れてラバー３の口を閉じ、水２を加圧してフル
フリルアルコール４に300kg/cm2以上の含浸圧力を約１
分間以上加えて炭素成形体５に含浸させた。その後、10
℃／時間の昇温速度で200℃まで加熱して硬化させ、更
に８℃／時間の昇降温度で950℃まで加熱し、最後に230
0℃で純化処理を行い、黒鉛材料（実施例１〜４）を製
造した。これらの黒鉛材料の特性を第２表に示す。First, put the carbon molded body 5 in the rubber 3 and keep it for 30 minutes in 30 minutes.
After depressurizing to less than Torr, put furfuryl alcohol 4 in it and close the mouth of the rubber 3. Pressurize water 2 to impregnate furfuryl alcohol 4 with an impregnation pressure of 300 kg / cm 2 or more about 1
The carbon compact 5 was impregnated by adding for at least one minute. Then 10
It is heated to 200 ℃ at a heating rate of ℃ / hour to cure, and further heated to 950 ℃ at a rising / falling temperature of 8 ℃ / hour, and finally 230
Purification treatment was performed at 0 ° C. to produce graphite materials (Examples 1 to 4). The properties of these graphite materials are shown in Table 2.
これと比較するために、上記と同一の炭素成形体に20
kg/cm2以下の低圧力でフルフリルアルコールを含浸させ
た後、上記と同様な方法で黒鉛材料（比較例１〜４）を
製造した。これらの黒鉛材料の特性を第３表に示す。For comparison, the same carbon compact as above
After impregnating furfuryl alcohol at a low pressure of kg / cm 2 or less, graphite materials (Comparative Examples 1 to 4) were produced by the same method as above. The properties of these graphite materials are shown in Table 3.
以上のようにして得られた実施例１〜４の黒鉛材料、
比較例１〜４の黒鉛材料及び未処理の炭素成形体（No.1
〜４）について、大気中、800℃において10〜60分の範
囲でキープ時間を変化させて酸化消耗試験を行った結果
を第２図〜第５図に示す。 Graphite materials of Examples 1 to 4 obtained as described above,
Graphite materials of Comparative Examples 1 to 4 and untreated carbon compacts (No. 1
2 to 5 show the results of the oxidative consumption test of the above-mentioned 4) in the air at 800 ° C. for 10 to 60 minutes while changing the keeping time.
第２図〜第５図から明らかなように、60分後の重量減
少率は、未処理の炭素成形体では約30％、比較例の黒鉛
材料では約20％である。これに対して実施例の黒鉛材料
では60分後でも重量減少率は５％程度にとどまり、従来
のものより大幅に耐酸化性が向上していることがわか
る。As is clear from FIGS. 2 to 5, the weight reduction rate after 60 minutes is about 30% for the untreated carbon compact and about 20% for the graphite material of the comparative example. On the other hand, in the graphite materials of the examples, the weight reduction rate was about 5% even after 60 minutes, and it can be seen that the oxidation resistance is significantly improved as compared with the conventional materials.
以上詳述したように本発明によれば、炭素材料の機械
的強度や耐酸化性を向上させることができる。As described in detail above, according to the present invention, the mechanical strength and oxidation resistance of the carbon material can be improved.
第１図は本発明の実施例において用いられた含浸装置の
構成図、第２図は実施例１の黒鉛材料、比較例１の黒鉛
材料及び未処理の炭素成形体（No.1）についての酸化消
耗試験におけるキープ時間と重量減少率の関係を示す特
性図、第３図は実施例２の黒鉛材料、比較例２の黒鉛材
料及び未処理の炭素成形体（No.2）についての酸化消耗
試験におけるキープ時間と重量減少率の関係を示す特性
図、第４図は実施例３の黒鉛材料、比較例３の黒鉛材料
及び未処理の炭素成形体（No.3）についての酸化消耗試
験におけるキープ時間と重量減少率の関係を示す特性
図、第５図は実施例４の黒鉛材料、比較例４の黒鉛材料
及び未処理の炭素成形体（No.4）についての酸化消耗試
験におけるキープ時間と重量減少率の関係を示す特性図
である。 １……耐圧容器、２……水、３……ラバー、４……フル
フリルアルコール、５……炭素成形体。FIG. 1 is a block diagram of an impregnating apparatus used in an example of the present invention, and FIG. 2 is a graphitic material of Example 1, a graphite material of Comparative Example 1 and an untreated carbon compact (No. 1). A characteristic diagram showing the relationship between the keeping time and the weight reduction rate in the oxidative consumption test, and FIG. 3 is the oxidative consumption of the graphite material of Example 2, the graphite material of Comparative Example 2 and the untreated carbon compact (No. 2). FIG. 4 is a characteristic diagram showing the relationship between the keeping time and the weight loss rate in the test, and FIG. 4 is an oxidative consumption test for the graphite material of Example 3, the graphite material of Comparative Example 3 and the untreated carbon compact (No. 3). FIG. 5 is a characteristic diagram showing the relationship between the keeping time and the weight reduction rate, and FIG. 5 is the keeping time in the oxidation consumption test for the graphite material of Example 4, the graphite material of Comparative Example 4 and the untreated carbon compact (No. 4). FIG. 5 is a characteristic diagram showing a relationship between the weight reduction rate and the weight reduction rate. 1 ... Pressure resistant container, 2 ... Water, 3 ... Rubber, 4 ... Furfuryl alcohol, 5 ... Carbon molded body.
Claims (1)
熱硬化性樹脂を含浸させ、硬化、焼成および純化処理し
てなる炭素材料であって、見掛け気孔率が９％以下であ
ることを特徴とする炭素材料。1. A carbon material obtained by impregnating a porous carbon molded body with tar, pitch or a thermosetting resin, curing, firing and purifying the carbon material, and having an apparent porosity of 9% or less. Characteristic carbon material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63097116A JPH0813712B2 (en) | 1988-04-20 | 1988-04-20 | Carbon material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63097116A JPH0813712B2 (en) | 1988-04-20 | 1988-04-20 | Carbon material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01270577A JPH01270577A (en) | 1989-10-27 |
| JPH0813712B2 true JPH0813712B2 (en) | 1996-02-14 |
Family
ID=14183600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63097116A Expired - Fee Related JPH0813712B2 (en) | 1988-04-20 | 1988-04-20 | Carbon material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0813712B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014112700A1 (en) * | 2013-01-21 | 2014-07-24 | 주식회사 티앤머티리얼스 | Mold for pressure impregnation |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2527666B2 (en) * | 1992-02-18 | 1996-08-28 | イビデン株式会社 | Glassy carbon coated article |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55162489A (en) * | 1979-05-31 | 1980-12-17 | Kurosaki Refractories Co | Method of impregnating material having open pores |
| JPS62209384A (en) * | 1986-03-11 | 1987-09-14 | 株式会社東芝 | Nuclear reactor fuel aggregate |
-
1988
- 1988-04-20 JP JP63097116A patent/JPH0813712B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014112700A1 (en) * | 2013-01-21 | 2014-07-24 | 주식회사 티앤머티리얼스 | Mold for pressure impregnation |
| JP2015529160A (en) * | 2013-01-21 | 2015-10-05 | ティー アンド マテリアルズ カンパニー，リミテッド | Pressure impregnation mold |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01270577A (en) | 1989-10-27 |
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