JPH04342488A - Composite material of metal and ceramic and its production - Google Patents
Composite material of metal and ceramic and its productionInfo
- Publication number
- JPH04342488A JPH04342488A JP3143769A JP14376991A JPH04342488A JP H04342488 A JPH04342488 A JP H04342488A JP 3143769 A JP3143769 A JP 3143769A JP 14376991 A JP14376991 A JP 14376991A JP H04342488 A JPH04342488 A JP H04342488A
- Authority
- JP
- Japan
- Prior art keywords
- metal
- ceramic
- sintered body
- pores
- composite according
- 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.)
- Pending
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 20
- 239000002184 metal Substances 0.000 title claims abstract description 20
- 239000000919 ceramic Substances 0.000 title claims description 52
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000011148 porous material Substances 0.000 claims abstract description 24
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 9
- 238000010304 firing Methods 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 5
- 229920001558 organosilicon polymer Polymers 0.000 claims description 4
- 229920003257 polycarbosilane Polymers 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 238000005058 metal casting Methods 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 229920001709 polysilazane Polymers 0.000 claims 1
- 229910010293 ceramic material Inorganic materials 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 4
- 229910045601 alloy Inorganic materials 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 abstract description 2
- 229920000642 polymer Polymers 0.000 abstract description 2
- 239000002243 precursor Substances 0.000 abstract description 2
- 238000005476 soldering Methods 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910018404 Al2 O3 Inorganic materials 0.000 description 2
- 229910007277 Si3 N4 Inorganic materials 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000013001 point bending Methods 0.000 description 2
- 229910021364 Al-Si alloy Inorganic materials 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Landscapes
- Ceramic Products (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は金属とセラミックスの複
合体およびその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal-ceramic composite and a method for producing the same.
【０００２】0002
【従来の技術】金属とセラミックスとの複合体を得る方
法として、セラミックス成形時に粒状有機物を接合面近
傍に配して加熱除去後、焼成してホールの形成を行い、
金属を鋳込んでホールを利用したアンカー効果により、
両者を結合させる特開昭６１−２５９８０５号公報に示
された方法や、セラミックスの表面を機械的に荒らした
後、金属を貼り合せて溶融させ、表層の荒らした溝部内
に金属を入り込ませて機械的に結合させる特開昭６１−
２１５２７１号公報に示された方法などが知られている
。[Prior Art] As a method for obtaining a composite of metal and ceramics, granular organic matter is placed near the joint surface during ceramic molding, removed by heating, and then fired to form holes.
By casting metal and using the hole, the anchor effect is achieved.
The method shown in Japanese Patent Application Laid-open No. 61-259805, which combines the two, or the method of mechanically roughening the surface of the ceramic, bonding and melting the metal, and inserting the metal into the roughened grooves in the surface layer. JP-A No. 61-1997- Mechanically coupled
A method such as that disclosed in Japanese Patent No. 215271 is known.
【０００３】0003
【発明が解決しようとする課題】上述の特許公報に示さ
れたいずれの方法でも、金属部とセラミックスとの間に
、わずかの間隙が生ずるとともに、その部分の強度レベ
ルも低いという問題がある。[Problems to be Solved by the Invention] All of the methods disclosed in the above-mentioned patent publications have the problem that a slight gap is created between the metal part and the ceramic, and the strength level of that part is also low.
【０００４】本発明はこのような問題に鑑みてなされた
ものであり、その目的は金属とセラミックスとの複合に
際し、両者の間が隙間なく密着されているような金属と
セラミックスの複合体およびその製造方法を提供しよう
とするものである。[0004] The present invention was made in view of these problems, and its object is to provide a composite of metal and ceramics in which the metal and ceramics are tightly bonded without any gaps when the two are combined, The purpose is to provide a manufacturing method.
【０００５】[0005]
【課題を解決するための手段】上述の目的を達成するた
めに本発明によれば、連続気孔を有する多孔のセラミッ
クス焼結体における片側からの機構部を緻密なセラミッ
クスにて充填せしめるとともに他側からの気孔部を金属
の鋳込みにより閉塞せしめた金属とセラミックスの複合
体と、開気孔を有するセラミックス焼結体の片側に液状
の有機珪素系ポリマーを含浸し焼成せしめて気孔を充填
するステップと、前記のセラミックス焼結体の未充填の
気孔に金属を鋳込んで閉塞せしめるステップとを備えた
金属とセラミックスの複合体の製造方法が提供される。[Means for Solving the Problems] In order to achieve the above-mentioned object, according to the present invention, the mechanism portion from one side of a porous ceramic sintered body having continuous pores is filled with dense ceramics, and the mechanism portion from the other side is filled with dense ceramics. a metal-ceramic composite whose pores are closed by metal casting, and a step of impregnating one side of a ceramic sintered body with an open pore with a liquid organosilicon polymer and firing it to fill the pores; There is provided a method for producing a metal-ceramic composite comprising the step of casting metal into the unfilled pores of the ceramic sintered body to close them.
【０００６】[0006]
【実施例】つぎに、本発明の実施例について詳細に説明
する。EXAMPLES Next, examples of the present invention will be described in detail.
【０００７】第１の実施例として、ＡｌＮ粉末に助剤と
してＹ２ Ｏ３ を５％添加し、メタノールを媒体とし
て混合後、造粒、プレス成形により外径８０ｍｍ、内径
６０ｍｍのリング状成形体を作成する。ついで、Ｎ２
雰囲気中にて所定条件にて焼成し、気孔率約４５％、連
続開気孔を有する多孔質のセラミックスを作成する。As a first example, 5% of Y2O3 was added as an auxiliary agent to AlN powder, mixed using methanol as a medium, and then granulated and press molded to create a ring-shaped molded body with an outer diameter of 80 mm and an inner diameter of 60 mm. do. Next, N2
Firing is performed in an atmosphere under predetermined conditions to produce porous ceramics having a porosity of about 45% and continuous open pores.
【０００８】そして、上述のセラミックスの内周に沿っ
てポリカルボシラン溶液を浸み込ませて焼成し、その部
分中にある気孔内にＳｉを含むセラミックスを形成させ
て閉塞する。また、この含浸および焼成の工程を例えば
５回繰返し、外周から内周に向けて順次に気孔量を変化
させる。[0008] Then, a polycarbosilane solution is infiltrated along the inner periphery of the above-mentioned ceramic and fired, thereby forming a ceramic containing Si in the pores in the area and sealing them. Further, the impregnation and firing steps are repeated, for example, five times to sequentially change the pore volume from the outer circumference to the inner circumference.
【０００９】つぎに、上記の工程で得られたリングを坩
堝に収納し、Ａｌ−Ｓｉ合金の溶湯を鋳込み、リング外
周から内周にかけてその残っている気孔部をＡｌ合金で
閉塞する。Next, the ring obtained in the above process is placed in a crucible, and molten Al--Si alloy is poured into the crucible, and the remaining pores from the outer circumference to the inner circumference of the ring are closed with the Al alloy.
【００１０】そして、上記が凝固後、坩堝から取出し切
断して、その破面観察を行った処、界面付近の隙間など
全く見られず、また、Ａｌ合金側からセラミックス側に
かけＡｌ合金が連続して入り込んでいる状態が確認され
た。[0010] After solidification, the above material was removed from the crucible and cut, and when the fracture surface was observed, no gaps were observed near the interface, and the Al alloy was continuous from the Al alloy side to the ceramic side. It was confirmed that there was a situation where the
【００１１】つぎに第２の実施例として、Ｓｉ３ Ｎ４
ウイスカーにＹ２ Ｏ３ 、Ａｌ２ Ｏ３ のそれぞ
れ３％を添加し、これらを混合してスラリー化した後、
スリップキャスティング法により、約３０×３０×３０
ｍｍの成形体を作成する。ついでＮ２ 雰囲気中で所定
温度にて焼成し、気孔率約６０％を有し連続開気孔を備
えた多孔質セラミックスを得る。Next, as a second embodiment, Si3 N4
After adding 3% each of Y2 O3 and Al2 O3 to the whiskers and mixing them to form a slurry,
Approximately 30 x 30 x 30 by slip casting method
A molded body of mm is created. Then, it is fired at a predetermined temperature in an N2 atmosphere to obtain a porous ceramic having a porosity of about 60% and continuous open pores.
【００１２】ここで、図１は本実施例の製造工程のステ
ップを組織観察した模写図であり、同図に従い以下の工
程を説明すると、前述の第１の実施例と同様な要領にて
表面をポリカルボシランを用いて緻密化した後、該表面
を加工研磨によって平滑にする（Ａ）。FIG. 1 is a schematic diagram showing the structure of the steps in the manufacturing process of this embodiment, and the following steps will be explained according to the diagram. After densification using polycarbosilane, the surface is smoothed by processing and polishing (A).
【００１３】つぎに、酸化物粉末をペース状にしたもの
をソルダー剤として塗布し、その乾燥後、表面を十分に
平滑にする。そして密度９９％以上のＳｉ３ Ｎ４ を
貼り合せ、炉内で荷重を与えながら加熱を行って両者を
接合する（Ｂ，Ｃ）。Next, a paste of oxide powder is applied as a solder agent, and after drying, the surface is made sufficiently smooth. Then, Si3N4 having a density of 99% or more is bonded, and the two are bonded by heating while applying a load in a furnace (B, C).
【００１４】このような処理にて得られたセラミックス
接合体の気孔部に、前述の第１の実施例と同様な要領で
Ａｌ合金を鋳込み、一体化を行う（Ｄ）。[0014] An Al alloy is cast into the pores of the ceramic bonded body obtained by such treatment in the same manner as in the first embodiment described above, and integration is performed (D).
【００１５】そして、上述の鋳込みにより得られた材料
から試験片を切り出し、室温と３００℃との間の熱サイ
クルを実施した後、４点曲げ試験による界面強度の結果
は次の値が得られている。
σ４ｂ＝１４．８ｋｇｆ ／ｍｍ２ （ｎ＝２０）[0015] After cutting out a test piece from the material obtained by the above-mentioned casting and carrying out a thermal cycle between room temperature and 300°C, the following values were obtained for the interfacial strength by a four-point bending test. ing. σ4b=14.8kgf/mm2 (n=20)
【０
０１６】また、熱サイクル試験後の界面近傍の組織観察
を行ったが、第１の実施例と同様に隙間なく、密着して
いることが確認された。0
[016] Further, the structure near the interface was observed after the thermal cycle test, and it was confirmed that there was no gap and close contact as in the first example.
【００１７】つぎに第３の実施例について説明する。Next, a third embodiment will be explained.
【００１８】Ｓｉ３ Ｎ４ 粒子にＡｌ２ Ｏ３ 、Ｙ
２ Ｏ３ をそれぞれ３％添加して混合後、造粒粉を得
て、該粒粉を用いてプレス成形により約３０×３０×３
０ｍｍの成形体を作成し、Ｎ２ 雰囲気にての焼成によ
り気孔率約５０％の多孔体を得る。この状態では粒子同
士はネッキングを起こして、より連続体を形成している
。[0018] Si3 N4 particles with Al2 O3, Y
After adding 3% of each of 2 O3 and mixing, granulated powder was obtained, and the granulated powder was press-molded into approximately 30×30×3
A molded body with a thickness of 0 mm is prepared, and a porous body with a porosity of about 50% is obtained by firing in an N2 atmosphere. In this state, the particles neck together and form a continuum.
【００１９】ついで図１（Ａ）に示すように多孔体に対
し、一方向からポリカルボシラン溶液を含浸させて焼成
し、これを複数回繰返して含浸させる領域をずらしてい
く事で気孔率を傾斜させる。最終的にはその表面に緻密
なセラミックス膜をほぼ形成させる。Next, as shown in FIG. 1(A), the porous body is impregnated with a polycarbosilane solution from one direction and fired, and this is repeated several times to shift the impregnated area to increase the porosity. Tilt. Finally, a dense ceramic film is almost formed on the surface.
【００２０】つぎに、図１（Ｂ）のように酸化物ソルダ
ーを塗布後、その表面に緻密質で平滑なＳｉ３ Ｎ４
からなるセラミックスｂを貼合せ、第２の実施例と同様
に両者を（Ｃ）のように接合する。Next, as shown in FIG. 1(B), after applying oxide solder, a dense and smooth Si3N4 layer is applied to the surface.
Ceramics b consisting of the above are bonded together, and both are joined as shown in (C) in the same manner as in the second embodiment.
【００２１】そして、前記の実施例に準じて多孔部側の
気孔内をＡｌ合金の鋳造により閉塞して、金属部とセラ
ミックスｂとの一体化を行わせる（Ｄ）。Then, in accordance with the above embodiment, the pores on the porous side are closed by casting an Al alloy to integrate the metal part and the ceramic b (D).
【００２２】このような工程の終了した材料から試験片
を切出して熱サイクルを実施したものを、４点曲げ試験
を行った結果は次の数値が得られている。
σ４ｂ＝１６．３ｋｇｆ ／ｍｍ２ （ｎ＝２２）[0022] A test piece was cut out from the material after such a process and subjected to a thermal cycle, and a four-point bending test was conducted on the test piece, and the following numerical values were obtained. σ4b=16.3kgf/mm2 (n=22)
【０
０２３】そして、熱サイクルテスト後の界面近傍の組織
観察においては、金属部分が多孔セラミックスの気孔内
に途切れることなく入り込んでおり、両者が強固に連結
されていることが確認されている。0
[023] In the observation of the structure near the interface after the thermal cycle test, it was confirmed that the metal part penetrated into the pores of the porous ceramic without interruption, and that the two were firmly connected.
【００２４】以上、本発明を上述の実施例によって説明
したが、本発明の主旨の範囲内で種々の変形が可能であ
り、これらの変形を本発明の範囲から解除するものでは
ない。Although the present invention has been described above with reference to the above-mentioned embodiments, various modifications can be made within the scope of the gist of the present invention, and these modifications are not excluded from the scope of the present invention.
【００２５】[0025]
【発明の効果】上述のように本発明によれば、連続気孔
を備えたセラミックス焼結体の一方の面にポリマープリ
カーサを用いて緻密面として、ソルダー剤により緻密な
セラミックス材を接合し、他方の多孔質の面にはＡｌ合
金などの鋳造自在な合金を鋳込んで凝固させるので、金
属とセラミックスとの間には隙間なく密着した複合体が
得られるという効果が得られる。As described above, according to the present invention, a polymer precursor is used on one side of a ceramic sintered body having continuous pores to form a dense surface, a dense ceramic material is bonded with a solder agent, and the other side is bonded with a dense ceramic material using a solder agent. Since a freely castable alloy such as an Al alloy is poured into the porous surface and solidified, the effect is obtained that a composite body is obtained in which the metal and ceramic are in close contact with each other without any gaps.
【図１】本発明の実施例における製造工程の進行の一例
を示す観察模写図である。FIG. 1 is a schematic observation diagram showing an example of the progress of a manufacturing process in an example of the present invention.
Claims (10)
体における片側からの機構部を緻密なセラミックスにて
充填せしめるとともに他側からの気孔部を金属の鋳込み
により閉塞せしめ、前記緻密なセラミックスと金属とが
互いに強固に連結していることを特徴とする金属とセラ
ミックスの複合体。Claim 1: In a porous ceramic sintered body having continuous pores, the mechanical part from one side is filled with dense ceramics, and the pores from the other side are closed by metal casting, and the dense ceramics and the metal are filled. A composite of metal and ceramics characterized by the fact that they are strongly connected to each other.
率を表面からの距離に応じて連続的に減少させて変化せ
しめ、該連続的な変化に対応させて前記金属の閉塞率を
順次に増大せしめたことを特徴とする請求項１記載の金
属とセラミックスの複合体。2. The volume fraction of the ceramic filling the pores is continuously decreased and changed according to the distance from the surface, and the occlusion rate of the metal is sequentially increased in accordance with the continuous change. 2. The metal-ceramic composite according to claim 1, characterized in that:
ラミックスを充填せしめた面に、別の緻密質セラミック
スを接合したことを特徴とする請求項１記載の金属とセ
ラミックスの複合体。3. The metal-ceramic composite according to claim 1, wherein another dense ceramic is bonded to the surface of the ceramic sintered body filled with the dense ceramic.
であることを特徴とする請求項１または請求項３記載の
金属とセラミックスの複合体。4. The porous ceramic sintered body is made of AlN.
The metal-ceramic composite according to claim 1 or 3, characterized in that:
Ｎ４ からなることを特徴とする請求項１または請求
項３記載の金属とセラミックスの複合体。5. The porous ceramic sintered body is Si3
The metal-ceramic composite according to claim 1 or 3, characterized in that it is made of N4.
する請求項１または請求項２記載の金属とセラミックス
の複合体。6. The metal-ceramic composite according to claim 1 or 2, wherein the metal is an Al alloy.
に液状の有機珪素系ポリマーを含浸し焼成せしめて気孔
を充填するステップと、前記のセラミックス焼結体の未
充填の気孔に金属を鋳込んで閉塞せしめるステップとを
備えたことを特徴とする金属とセラミックスの複合体の
製造方法。7. A step of impregnating one side of a ceramic sintered body having open pores with a liquid organosilicon polymer and firing it to fill the pores, and casting metal into the unfilled pores of the ceramic sintered body. A method for manufacturing a metal-ceramic composite, comprising the steps of:
表面に別の緻密質セラミックスを接合するステップを加
えたことを特徴とする請求項７記載の金属とセラミック
スの複合体の製造方法。8. The method of manufacturing a metal-ceramic composite according to claim 7, further comprising the step of bonding another dense ceramic to the surface of the filled pore side of the ceramic sintered body.
有機珪素系ポリマーを含浸し焼成する工程を複数回繰返
して、セラミックス焼結体における気孔の充填率を連続
的に変化せしめることを特徴とする請求項７記載の金属
とセラミックスの複合体の製造方法。9. The step of impregnating one side of the ceramic sintered body with a liquid organosilicon polymer and firing it is repeated multiple times to continuously change the filling rate of pores in the ceramic sintered body. The method for producing a metal-ceramic composite according to claim 7.
ンかポリカルボシランのいずれかであることを特徴とす
る請求項７または請求項９記載の金属とセラミックスの
複合体の製造方法。10. The method for producing a metal-ceramic composite according to claim 7 or 9, wherein the organosilicon polymer is either polysilazane or polycarbosilane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3143769A JPH04342488A (en) | 1991-05-20 | 1991-05-20 | Composite material of metal and ceramic and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3143769A JPH04342488A (en) | 1991-05-20 | 1991-05-20 | Composite material of metal and ceramic and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04342488A true JPH04342488A (en) | 1992-11-27 |
Family
ID=15346599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3143769A Pending JPH04342488A (en) | 1991-05-20 | 1991-05-20 | Composite material of metal and ceramic and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04342488A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6123797A (en) * | 1995-06-23 | 2000-09-26 | The Dow Chemical Company | Method for coating a non-wetting fluidizable and material onto a substrate |
| US6607804B1 (en) | 1998-03-09 | 2003-08-19 | Thomas Josef Heimbach Gesellschaft Mit Beschrankter Haftung & Co. | Molded part made of an electrically conductive ceramic and process for the production of contact zones on such molded parts |
-
1991
- 1991-05-20 JP JP3143769A patent/JPH04342488A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6123797A (en) * | 1995-06-23 | 2000-09-26 | The Dow Chemical Company | Method for coating a non-wetting fluidizable and material onto a substrate |
| US6607804B1 (en) | 1998-03-09 | 2003-08-19 | Thomas Josef Heimbach Gesellschaft Mit Beschrankter Haftung & Co. | Molded part made of an electrically conductive ceramic and process for the production of contact zones on such molded parts |
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