DE1041410B - Process for the production of bodies from sintered hard materials - Google Patents
Process for the production of bodies from sintered hard materialsInfo
- Publication number
- DE1041410B DE1041410B DES44349A DES0044349A DE1041410B DE 1041410 B DE1041410 B DE 1041410B DE S44349 A DES44349 A DE S44349A DE S0044349 A DES0044349 A DE S0044349A DE 1041410 B DE1041410 B DE 1041410B
- Authority
- DE
- Germany
- Prior art keywords
- titanium nitride
- bodies
- aluminum oxide
- hard materials
- mixture
- 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
- 239000000463 material Substances 0.000 title claims description 8
- 238000000034 method Methods 0.000 title claims description 6
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims description 13
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 11
- 239000000919 ceramic Substances 0.000 claims description 7
- 238000005245 sintering Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 claims description 2
- 150000001247 metal acetylides Chemical class 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 239000011733 molybdenum Substances 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 229910021332 silicide Inorganic materials 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 239000010937 tungsten Substances 0.000 claims description 2
- 229910052726 zirconium Inorganic materials 0.000 claims description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-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
- 229910052804 chromium Inorganic materials 0.000 claims 1
- 239000011651 chromium Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000004814 ceramic processing Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000010437 gem Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XOUPWBJVJFQSLK-UHFFFAOYSA-J titanium(4+);tetranitrite Chemical compound [Ti+4].[O-]N=O.[O-]N=O.[O-]N=O.[O-]N=O XOUPWBJVJFQSLK-UHFFFAOYSA-J 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
- C04B35/111—Fine ceramics
- C04B35/117—Composites
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
- C04B35/58007—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on refractory metal nitrides
- C04B35/58014—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on refractory metal nitrides based on titanium nitrides, e.g. TiAlON
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Composite Materials (AREA)
- Ceramic Products (AREA)
Description
Verfahren zur Herstellung von Körpern aus Sinterhartstoffen Sinterhartstoffe auf der Basis von Titannitrid sind bekannt. Diese weisen bei großer Härte eine ausgezeichnete elektrische Leitfähigkeit auf und haben damit auch eine gute Wärmeleitfähigkeit. Die Sintertemperatur ist jedoch sehr hoch, so daß die Herstellung von Körpern aus Titannitrid Schwierigkeiten bereitet. Man hat auch Aluminiumoxyd zu Körpern verarbeitet, bei denen es auf eine große Härte ankommt. Aluminiumoxyd hat eine Sintertemperatur von etwa 1800° C, weist jedoch praktisch keine elektrische Leitfähigkeit und auch nur eine geringe Wärmeleitfähigkeit auf, so daß es gegen Temperaturwechsel sehr empfindlich ist. -Es ist ferner bekannt, Verbundkörper aus einer metallischen und keramischen Komponente, z. B. aus Titannitrit und Aluminiumoxyd, herzustellen. Hierbei hat man jedoch aus der metallischen Komponente durch Pressen und Sintern einen porösen Körper hergestellt und diesen in ein Bad von geschmolzener Keramik gebracht. Es wurden also die Poren der metallischen Komponente mit flüssiger Keramik ausgefüllt. Ein derartiges Verfahren war sehr schwierig durchzuführen. Auch war es dadurch beschränkt ausführbar, als die metallischen Komponenten eine Sintertemperatur aufweisen mußten, die über dem Schmelzpunkt der keramischen Komponente liegt.Process for the production of bodies from sintered hard materials based on titanium nitride are known. With great hardness, these have an excellent electrical conductivity and thus also have good thermal conductivity. However, the sintering temperature is very high, so that the manufacture of bodies is made from Titanium nitride causes difficulties. Aluminum oxide has also been processed into bodies, where a great deal of hardship is important. Aluminum oxide has a sintering temperature of about 1800 ° C, but has practically no electrical conductivity and also only a low thermal conductivity, so that it is very resistant to temperature changes is sensitive. -It is also known composite body made of a metallic and ceramic component, e.g. B. from titanium nitrite and aluminum oxide. Here However, the metallic component is made into a porous one by pressing and sintering Body made and placed in a bath of molten ceramic. It So the pores of the metallic component were filled with liquid ceramic. Such a procedure was very difficult to carry out. It was also limited by it feasible when the metallic components had to have a sintering temperature, which is above the melting point of the ceramic component.
Die Erfindung hat sich die Aufgabe gestellt, Körper aus Sinterhartstoffen herzustellen, die die vorstehend genannten Nachteile nicht aufweisen. Gemäß der Erfindung werden die Körper aus einer Mischung von Titannitrid und Aluminiumoxyd geformt und derart einer Sinterung unterworfen, daß eine Mischkeramik entsteht. Vorteilhafterweise wird eine Mischung von gleichen Teilen Aluminiumoxyd und Titannitrid verwendet, wobei das Titannitrid einen Stickstoffgehalt von 16 bis 22,611/a aufweisen kann. Es handelt sich um Mischkeramiken ohne Glasphase.The invention has set itself the task of body made of sintered hard materials produce which do not have the disadvantages mentioned above. According to the Invention are the bodies made of a mixture of titanium nitride and aluminum oxide shaped and subjected to sintering in such a way that a mixed ceramic is produced. A mixture of equal parts of aluminum oxide and titanium nitride is advantageously used used, the titanium nitride having a nitrogen content of 16 to 22.611 / a can. These are mixed ceramics without a glass phase.
Die erfindungsgemäßen Körper kommen in Härte-und Biegfestigkeit dem Aluminiumoxyd nahe und haben eine mit steigendem Titannitridgehalt zunehmende Wärmeleitfähigkeit und bessere Temperaturwechselbeständigkeit als das Aluminiumoxyd. Ferner haben sie eine bessere Oxydationsbeständigkeit als reines Titannitrid und sind chemisch außerordentlich widerstandsfähig. Die keramische Verarbeitung bereitet keine besonderen Schwierigkeiten. Das Sintern kann vorzugsweise zwischen 1600 und 2000° C in nichtoxydierender Atmosphäre oder in Vakuum erfolgen.The bodies according to the invention come in hardness and flexural strength Close to aluminum oxide and have a thermal conductivity that increases with increasing titanium nitride content and better thermal shock resistance than aluminum oxide. Furthermore, they have a better resistance to oxidation than pure titanium nitride and are chemically extraordinary resilient. Ceramic processing does not present any particular difficulties. The sintering can preferably take place between 1600 and 2000 ° C. in a non-oxidizing atmosphere or in a vacuum.
Der Mischung von Titannitrid und Aluminiumoxyd können auch Karbide, Boride oder Silizide von übergangselementen, z. B. des Titans, Zirkons, Molybdäns, Chroms. Wolframs, zugesetzt werden, ebenso die entsprechenden Stickstoffverbindungen. Aus den erfindungsgemäßen Hartstoffen können z. B. Schneidwerkzeuge, Matrizen, Ziehsteine, Bohrkronen, Düsen, Turbinenschaufeln od. dgl. hergestellt werden. Infolge der elektrischen Leitfähigkeit sind die neuen Sinterhartstoffe auch vorteilhaft für Fadenführer geeignet, da statische Aufladungen verhindert werden können. Auch elektrische Widerstandskörper, Lagersteine, die gleichzeitig elektrisch Kontakt geben, können vorteilhaft aus den neuen Sinterhartstoffen hergestellt werden.The mixture of titanium nitride and aluminum oxide can also contain carbides, Borides or silicides of transition elements, e.g. B. of titanium, zirconium, molybdenum, Chromes. Tungsten, are added, as are the corresponding nitrogen compounds. From the hard materials according to the invention, for. B. cutting tools, dies, drawing dies, Drill bits, nozzles, turbine blades or the like. Be made. As a result of the electrical Conductivity, the new sintered hard materials are also advantageously suitable for thread guides, since static charges can be prevented. Also electrical resistance bodies, Jewels that give electrical contact at the same time can be advantageous from the new sintered hard materials are produced.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES44349A DE1041410B (en) | 1955-06-15 | 1955-06-15 | Process for the production of bodies from sintered hard materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES44349A DE1041410B (en) | 1955-06-15 | 1955-06-15 | Process for the production of bodies from sintered hard materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1041410B true DE1041410B (en) | 1958-10-16 |
Family
ID=7485101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DES44349A Pending DE1041410B (en) | 1955-06-15 | 1955-06-15 | Process for the production of bodies from sintered hard materials |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1041410B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1149288B (en) * | 1961-03-28 | 1963-05-22 | Keramische Werke Neuhaus Veb | Process to improve the material properties of titanium nitride mixed materials |
| US3409419A (en) * | 1966-11-09 | 1968-11-05 | Du Pont | Nitrides plus wear-resistant additives bonded with iron, cobalt or nickel |
| DE2630687A1 (en) * | 1975-07-09 | 1977-01-27 | Teledyne Ind | SINTERED CERMETE FOR TOOL AND WEAR APPLICATIONS |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2672426A (en) * | 1950-12-14 | 1954-03-16 | Mallory & Co Inc P R | Metal-ceramic bodies and method of making |
-
1955
- 1955-06-15 DE DES44349A patent/DE1041410B/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2672426A (en) * | 1950-12-14 | 1954-03-16 | Mallory & Co Inc P R | Metal-ceramic bodies and method of making |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1149288B (en) * | 1961-03-28 | 1963-05-22 | Keramische Werke Neuhaus Veb | Process to improve the material properties of titanium nitride mixed materials |
| US3409419A (en) * | 1966-11-09 | 1968-11-05 | Du Pont | Nitrides plus wear-resistant additives bonded with iron, cobalt or nickel |
| DE2630687A1 (en) * | 1975-07-09 | 1977-01-27 | Teledyne Ind | SINTERED CERMETE FOR TOOL AND WEAR APPLICATIONS |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2733354A1 (en) | METHOD OF MANUFACTURING A CERAMIC PRODUCT | |
| DE2813666A1 (en) | DENSE, TEMPERATURE-RESISTANT BODY MADE OF SILICON CARBIDE AND PROCESS FOR ITS MANUFACTURING | |
| EP0021239B1 (en) | Process for the production of dense polycrystalline alpha-silicon carbide shaped articles by hot pressing and so obtained shaped articles | |
| DE1253627B (en) | Process for the production of a ceramic dielectric | |
| DE3427673C2 (en) | ||
| DE2947336A1 (en) | METHOD FOR PRODUCING A Sintered Aluminum Product | |
| EP0022522B1 (en) | Dense polycristalline beta-silicon carbide articles and process for their production by hot pressing | |
| DE68918506T2 (en) | High-strength, highly tough TiB2 ceramic. | |
| DE1041410B (en) | Process for the production of bodies from sintered hard materials | |
| DE2826544C2 (en) | Super-hard mixed material based on cubic boron nitride | |
| DE1247669B (en) | Coarsely crystalline, sintered tungsten glow body and use of the same | |
| DE1771970C3 (en) | Process for the production of heat-resistant, carbon-containing bodies | |
| DE3015886A1 (en) | SILICON CARBIDE BODY AND METHOD FOR THEIR PRODUCTION | |
| DE2049977C3 (en) | Electrical resistance and process for its manufacture | |
| DE966105C (en) | Process for applying metals, in particular solder alloys, to hard metals | |
| DE973643C (en) | Process for the production of conductive or semi-conductive coatings on ceramic insulating bodies | |
| DE2302318C3 (en) | Cutting tool and process for its manufacture | |
| DE819458C (en) | Alloy for the production of welding electrodes for resistance welding | |
| DE152848C (en) | ||
| DE1037350B (en) | Process for the production of bodies from sintered hard materials, in particular cutting tools | |
| AT215676B (en) | Sintered bodies, in particular heating conductors made from molybdenum disilicide and a method for its production | |
| DE1272554B (en) | Chrome alloy | |
| DE867164C (en) | Method for sintering together two or more pressed or sintered bodies | |
| DE1161693B (en) | Process for the production of a hard material with high resistance to oxidation | |
| DD292903A5 (en) | METHOD FOR THE PRODUCTION OF CUBIC ALUMINUM NITRIDE |