CH496632A - Verfahren zum vakuumdichten Verbinden eines Metallkörpers mit einem keramischen Körper - Google Patents
Verfahren zum vakuumdichten Verbinden eines Metallkörpers mit einem keramischen KörperInfo
- Publication number
- CH496632A CH496632A CH817666A CH817666A CH496632A CH 496632 A CH496632 A CH 496632A CH 817666 A CH817666 A CH 817666A CH 817666 A CH817666 A CH 817666A CH 496632 A CH496632 A CH 496632A
- Authority
- CH
- Switzerland
- Prior art keywords
- metal
- molybdenum
- vacuum
- aqueous suspension
- covered
- Prior art date
Links
- 229910052751 metal Inorganic materials 0.000 title claims description 21
- 239000002184 metal Substances 0.000 title claims description 21
- 238000000034 method Methods 0.000 title claims description 13
- 239000000919 ceramic Substances 0.000 title claims description 10
- 239000000463 material Substances 0.000 claims description 15
- 229910052750 molybdenum Inorganic materials 0.000 claims description 9
- 239000011733 molybdenum Substances 0.000 claims description 9
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000007900 aqueous suspension Substances 0.000 claims description 6
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 5
- 239000000395 magnesium oxide Substances 0.000 claims description 4
- 229910000476 molybdenum oxide Inorganic materials 0.000 claims description 4
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 239000000020 Nitrocellulose Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000002270 dispersing agent Substances 0.000 claims description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 2
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 2
- 229920001220 nitrocellulos Polymers 0.000 claims description 2
- 239000010980 sapphire Substances 0.000 claims description 2
- 229910052594 sapphire Inorganic materials 0.000 claims description 2
- 229910052596 spinel Inorganic materials 0.000 claims description 2
- 239000011029 spinel Substances 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 claims 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 1
- 229910000019 calcium carbonate Inorganic materials 0.000 claims 1
- 235000010216 calcium carbonate Nutrition 0.000 claims 1
- 229910052681 coesite Inorganic materials 0.000 claims 1
- 229910052593 corundum Inorganic materials 0.000 claims 1
- 229910052906 cristobalite Inorganic materials 0.000 claims 1
- 239000005078 molybdenum compound Substances 0.000 claims 1
- 150000002752 molybdenum compounds Chemical class 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 229910052682 stishovite Inorganic materials 0.000 claims 1
- 229910052905 tridymite Inorganic materials 0.000 claims 1
- 229910001845 yogo sapphire Inorganic materials 0.000 claims 1
- 229910010293 ceramic material Inorganic materials 0.000 description 3
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 2
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 description 2
- 229910001930 tungsten oxide Inorganic materials 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- -1 tungsten or rhenium Chemical class 0.000 description 1
Classifications
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- 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
- C04B37/00—Joining burned ceramic articles with other burned ceramic articles or other articles by heating
- C04B37/02—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles
- C04B37/023—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles characterised by the interlayer used
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/636—Polysaccharides or derivatives thereof
- C04B35/6365—Cellulose or derivatives thereof
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6567—Treatment time
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- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
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- C04B2237/06—Oxidic interlayers
- C04B2237/068—Oxidic interlayers based on refractory oxides, e.g. zirconia
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Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Ceramic Products (AREA)
- Laminated Bodies (AREA)
- Compositions Of Oxide Ceramics (AREA)
Description
Verfahren zum vakuumdichten Verbinden eines Metallkörpers mit einem keramischen Körper Die Erfindung bezieht sich auf ein Verfahren zum vakuumdichten Verbinden eines Metallkörpers mit einem keramischen Körper. In der französischen Patentschrift 1 355 135 ist ein Verfahren zum Verbinden zweier Körper beschrieben, von denen einer aus einem Metall und der andere aus einem keramischen Material bestehen kann. Gemäss diesem Verfahren werden die zu verbindenden Oberflächen der Körper mit einem CaO oder BaO, Al,03, und MgO oder SrO enthaltenden Bindematerial überzogen. Dann wird das Bindematerial bis über 1 3000C erhitzt, so dass es schmilzt, wonach es abgekühlt wird, so dass es erstarrt. Es wurde gefunden, dass die in dieser Weise hergestellten Verbindungen verbessert werden können. Es gibt keine Anzeichen, dass das Metall chemisch vom Bindematerial angegriffen wird, das heisst es hat den Anschein, dass die Verbindung nur von der physischen Berührung zwischen der Metalloberfläche und dem angeschmolzenen Bindematerial abhängt. Die Erfindung bezweckt, ohne Beeinträchtigung der Undurchlässigkeit oder der Temperaturbeständigkeit die mechanischen Festigkeit der obenbeschriebenen Verbindung zu verbessern. Gemäss der Erfindung ist das Verfahren dadurch gekennzeichnet, dass zwischen den zu verbindenden Oberflächen der Körper eine Suspension aus wenigstens einem der Oxyde von Molybdän oder Wolfram in einem organischen Dispersionsmittel angebracht und das Ganze in feuchtem Wasserstoff etwa 10 Minuten lang auf etwa 1 6500C erhitzt wird, so dass sich eine schwammartige Verbindung des erwähnten Metalles zwischen dem. Metallkörper und der Keramik bildet, worauf das verbindende Metall zwischen den Körpern mit einer Suspension eines Aluminiumoxyd enthaltenden Materials bedeckt u. das Ganze in einer inerten Atmosphäre auf eine Temperatur von mehr als 1 3000C erhitzt wird, bis das Material schmilzt. wonach abgekühlt wird. Gemäss einem typischen Ausführungsbeispiel der Erfindung wird zunächst eine Suspension von Molybdänoxyd in einer Amylazetat-Nitrozellulose-Lösung zwischen den zu verbindenden Metall- und Keramikkörpern angebracht, wonach das Ganze in feuchtem Wasserstoff unter leichtem Druck während etwa 10 Minuten auf mindestens 1650 C erhitzt wird. Hierdurch ergibt sich eine poröse aber recht kräftige Molybdänbindeschicht zwischen dem Metall und der Keramik. Diese Bindeschicht wird dann mit einer wässerigen Suspension von feinverteiltem ALO und CaCOl in einem Molverhältnis von 5(CaO): 3 (Al2O3) bedeckt. Das Ganze wird dann 20 Minuten lang erneut auf 1 6500C erhitzt, um das Karbonat zu zersetzen und der Masse Gelegenheit zu geben, an und in das verbindende Molybdän zu schmelzen. Auf diese Weise wurde eine 0,05 mm dicke Molybdänscheibe mit einem Aluminiumoxydrohr mit einer Wanddicke von 1,25 mm und einem Durchmesser von 12,5 mm verbunden. Die so hergestellte Verbindung war vakuumdicht und widerstand allen Versuchen zur Trennung der Körper, bis schliesslich die Molybdänscheibe zerbrach. Eine Untersuchung der zerbrochenen Molybdänscheibe erwies, dass die Scheibe chemisch vom MoO3 angegriffen war, was die gesteigerte mechanische Festigkeit erklärt. Für den Fachmann ist es selbstverständlich, dass mit dem beschriebenen Verfahren auch andere Metalle, wie Wolfram oder Rhenium, mit anderen keramischen Materialien verbunden werden können, die mit Wolfram oder Molybdän oder Gemischen dieser Metalle metallisierbar sind, wie Spinell, Magnesiumoxyd und Saphir. Ferner kann statt des Molybdänoxydes Wolframoxyd oder ein Gemisch aus Wolframoxyd und Molybdänoxyd Verwendung finden, um die schwammartige Metallschicht auf dem keramischen Material zu bilden. Auch können als Bindematerial alle anderen Materialien benutzt werden, die in der französischen Patentschrift 1 355 135 erwähnt worden sind. Es sei jedoch bemerkt, dass infolge der starken chemischen Reaktivität zwischen Siliziumdioxyd und Alkalimetallen das Bindemittel frei von Siliziumdioxyd sein muss, um die Widerstandsfähigkeit gegen Alkalimetalldampf beizubehalten.
Claims (1)
- PATENTANSPRUCHVerfahren zum vakuumdichten Verbinden eines Metallkörpers mit einem keramischen Körper, dadurch gekennzeichnet, dass zwischen den zu verbindenden Oberflächen der Körper eine Suspension aus wenigstens einem der Oxyde von Molybdän oder Wolfram in einem organischen Dispersionsmittel angebracht und das Ganze in feuchtem Wasserstoff etwa 10 Minuten lang auf etwa 1 6500C erhitzt wird, so dass sich eine schwammige verbindende Schicht des erwähnten Metalles zwischen dem Metall- und dem Keramikkörper bildet, worauf deren an der Fuge freiliegende Oberfläche mit einer wässrigen Suspension eines mindestens Aluminiumoxyd enthaltenden Materials bedeckt und das Ganze in einer inerten Atmosphäre auf eine Temperatur von mehr als 13000C erhitzt wird, bis das Material schmilzt, wonach abgekühlt wird.UNTERANSPRÜCHE 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass eine wässerige Suspension eines Aluminium enthaltenden, siliziumoxydfreien Materials benutzt wird.2. Verfahren zum vakuumdichten Verbinden eines Metallkörpers mit einem keramischen Körper auf der Basis von Aluminiumoxyd nach Unteranspruch 1, dadurch gekennzeichnet, dass zwischen den zu verbindenden Oberflächen der Körper eine Suspension von Molybdän oxyd in einer Amylazetat-Nitrozellulose.Lösung angebracht wird.3. Verfahren nach Unteranspruch 2, dadurch gekennzeichnet, dass das verbindende Molybdän zwischen den Körpern mit einer wässerigen Suspension eines aus fein verteiltem Al203 und CaCOs bestehenden Materials bedeckt wird.4. Verfahren zum vakuumdichten Verbinden eines Metallkörpers mit einem keramischen Körper aus Aluminiumoxyd, Magnesiumoxyd, Spinell oder synthetischem Saphir nach Unteranspruch 1, dadurch gekennzeichnet.dass die Molybdänverbindung zwischen den Körpern mit einer wässerigen Suspension eines aus feinverteiltem CaCO3 und Al203 in einem Molverhältnis von 5 : 3 bestehenden Materials bedeckt wird.5. Verfahren nach einem der Unteransprüche 1 bis 4, dadurch gekennzeichnet, dass das verbindende Metall zwischen den Körpern mit einer wässrigen Suspension eines Materials bedeckt wird, das a) CaO oder BaO, b) Al203 und c) MgO oder SrO enthält.6. Verfahren nach Unteranspruch 5, dadurch gekennzeichnet, dass das das verbindende Metall bedeckende Material SiO2 enthält.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US46304165 US3366409A (en) | 1965-06-10 | 1965-06-10 | Ceramic-to-metal seal |
| US69816068A | 1968-01-16 | 1968-01-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH496632A true CH496632A (de) | 1970-09-30 |
Family
ID=27040527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH817666A CH496632A (de) | 1965-06-10 | 1966-06-07 | Verfahren zum vakuumdichten Verbinden eines Metallkörpers mit einem keramischen Körper |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US3366409A (de) |
| JP (1) | JPS4833010B1 (de) |
| BE (1) | BE682281A (de) |
| CH (1) | CH496632A (de) |
| GB (1) | GB1137746A (de) |
| NL (1) | NL6607851A (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237926A (zh) * | 2021-03-30 | 2021-08-10 | 中国石油大学(华东) | 一种NiCo2O4/WO3纳米复合材料及其制备方法和应用 |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3464725A (en) * | 1967-11-07 | 1969-09-02 | Philips Corp | Hermetic electrical lead-in assembly |
| US3590468A (en) * | 1969-02-19 | 1971-07-06 | Sperry Rand Corp | Glassy phase method for making pure alumina-to-metal hermetic seals |
| US3766634A (en) * | 1972-04-20 | 1973-10-23 | Gen Electric | Method of direct bonding metals to non-metallic substrates |
| US4055451A (en) * | 1973-08-31 | 1977-10-25 | Alan Gray Cockbain | Composite materials |
| US3839779A (en) * | 1973-09-07 | 1974-10-08 | Atomic Energy Commission | Ceramic brazing method |
| DE3014645C2 (de) * | 1980-04-16 | 1982-12-02 | MTU Motoren- und Turbinen-Union München GmbH, 8000 München | Metall-Keramik-Bauteil und Verfahren zu seiner Herstellung |
| US5094200A (en) * | 1991-05-28 | 1992-03-10 | Ford Motor Company | Lightweight composite engine valve |
| CN103212958A (zh) * | 2013-05-10 | 2013-07-24 | 江苏永昊高强度螺栓有限公司 | 航空发动机用连接件的加工方法 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2282106A (en) * | 1939-07-14 | 1942-05-05 | Gen Electric | Ceramic-to-metal seal |
| US2339392A (en) * | 1942-10-06 | 1944-01-18 | Rca Corp | Cathode |
| US2776472A (en) * | 1952-07-24 | 1957-01-08 | Gen Electric | Method of making a ceramic-to-metal bond |
| US2996401A (en) * | 1955-09-30 | 1961-08-15 | Eitel Mccullough Inc | Method of making ceramic structures for electron tubes |
| US3023492A (en) * | 1958-11-19 | 1962-03-06 | Gen Electric | Metalized ceramic member and composition and method for manufacturing same |
| US3281309A (en) * | 1961-12-12 | 1966-10-25 | Gen Electric | Ceramic bonding |
| US3331731A (en) * | 1962-11-14 | 1967-07-18 | Owens Illinois Inc | Method of and article formed by sealing alumina ceramic to a metal with a sealant glass |
| US3275358A (en) * | 1963-03-14 | 1966-09-27 | Gen Electric | Glass-to-metal and glass-to-ceramic seals |
| US3317298A (en) * | 1963-04-11 | 1967-05-02 | Philips Corp | Process for joining surfaces of refractory material with a mno-sio2-al2o3 system |
| US3291586A (en) * | 1963-04-16 | 1966-12-13 | Owens Illinois Inc | Solder glass compositions and method of sealing therewith |
| US3340025A (en) * | 1964-05-04 | 1967-09-05 | Philips Corp | Refractory metal-to-ceramic seal |
-
1965
- 1965-06-10 US US46304165 patent/US3366409A/en not_active Expired - Lifetime
-
1966
- 1966-06-07 CH CH817666A patent/CH496632A/de not_active IP Right Cessation
- 1966-06-07 JP JP3631366A patent/JPS4833010B1/ja active Pending
- 1966-06-07 GB GB2534566A patent/GB1137746A/en not_active Expired
- 1966-06-07 NL NL6607851A patent/NL6607851A/xx unknown
- 1966-06-08 BE BE682281D patent/BE682281A/xx unknown
-
1968
- 1968-01-16 US US3438118D patent/US3438118A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237926A (zh) * | 2021-03-30 | 2021-08-10 | 中国石油大学(华东) | 一种NiCo2O4/WO3纳米复合材料及其制备方法和应用 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4833010B1 (de) | 1973-10-11 |
| BE682281A (de) | 1966-12-08 |
| US3438118A (en) | 1969-04-15 |
| DE1646786B2 (de) | 1975-11-13 |
| DE1646786A1 (de) | 1971-08-12 |
| GB1137746A (en) | 1968-12-27 |
| US3366409A (en) | 1968-01-30 |
| NL6607851A (de) | 1966-12-12 |
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