WO2004074212A1 - Procedimiento de obtención de recubrimientos superficiales de nitruro de silicio (si3n4) sobre piezas y componentes cerámicos. - Google Patents
Procedimiento de obtención de recubrimientos superficiales de nitruro de silicio (si3n4) sobre piezas y componentes cerámicos. Download PDFInfo
- Publication number
- WO2004074212A1 WO2004074212A1 PCT/ES2004/000071 ES2004000071W WO2004074212A1 WO 2004074212 A1 WO2004074212 A1 WO 2004074212A1 ES 2004000071 W ES2004000071 W ES 2004000071W WO 2004074212 A1 WO2004074212 A1 WO 2004074212A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- silicon
- ceramic
- coating
- structural
- si3n4
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000000919 ceramic Substances 0.000 title claims abstract description 27
- 238000000576 coating method Methods 0.000 title claims abstract description 23
- 229910052581 Si3N4 Inorganic materials 0.000 title claims abstract description 9
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 title claims abstract description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 73
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 66
- 239000010703 silicon Substances 0.000 claims abstract description 66
- 239000011248 coating agent Substances 0.000 claims abstract description 18
- 238000005470 impregnation Methods 0.000 claims abstract description 9
- 239000011863 silicon-based powder Substances 0.000 claims abstract description 8
- 238000000746 purification Methods 0.000 claims abstract description 7
- 238000002844 melting Methods 0.000 claims abstract description 5
- 230000008018 melting Effects 0.000 claims abstract description 5
- 238000005272 metallurgy Methods 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims abstract description 5
- 239000000725 suspension Substances 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 229910002804 graphite Inorganic materials 0.000 claims description 12
- 239000010439 graphite Substances 0.000 claims description 12
- 239000011159 matrix material Substances 0.000 claims description 7
- 238000011282 treatment Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000004567 concrete Substances 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 4
- 229910010293 ceramic material Inorganic materials 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 238000013019 agitation Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000000265 homogenisation Methods 0.000 claims description 3
- 229920001817 Agar Polymers 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 239000008272 agar Substances 0.000 claims description 2
- 235000010419 agar Nutrition 0.000 claims description 2
- 229920000615 alginic acid Polymers 0.000 claims description 2
- 235000010443 alginic acid Nutrition 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 239000007900 aqueous suspension Substances 0.000 claims description 2
- 235000010418 carrageenan Nutrition 0.000 claims description 2
- 229920001525 carrageenan Polymers 0.000 claims description 2
- 239000001913 cellulose Substances 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims description 2
- 238000004814 ceramic processing Methods 0.000 claims description 2
- 238000004320 controlled atmosphere Methods 0.000 claims description 2
- 239000003349 gelling agent Substances 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000003754 machining Methods 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 230000003068 static effect Effects 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims 1
- 230000000996 additive effect Effects 0.000 claims 1
- 239000000679 carrageenan Substances 0.000 claims 1
- 229940113118 carrageenan Drugs 0.000 claims 1
- 230000008021 deposition Effects 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 238000005507 spraying Methods 0.000 claims 1
- UHVMMEOXYDMDKI-JKYCWFKZSA-L zinc;1-(5-cyanopyridin-2-yl)-3-[(1s,2s)-2-(6-fluoro-2-hydroxy-3-propanoylphenyl)cyclopropyl]urea;diacetate Chemical compound [Zn+2].CC([O-])=O.CC([O-])=O.CCC(=O)C1=CC=C(F)C([C@H]2[C@H](C2)NC(=O)NC=2N=CC(=CC=2)C#N)=C1O UHVMMEOXYDMDKI-JKYCWFKZSA-L 0.000 claims 1
- 229910052845 zircon Inorganic materials 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000005121 nitriding Methods 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 2
- 230000001419 dependent effect Effects 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920000609 methyl cellulose Polymers 0.000 description 2
- 239000001923 methylcellulose Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229920000620 organic polymer Polymers 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
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 150000004756 silanes Chemical group 0.000 description 1
- 150000003376 silicon Chemical class 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000007966 viscous suspension Substances 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- 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
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5053—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials non-oxide ceramics
- C04B41/5062—Borides, Nitrides or Silicides
- C04B41/5066—Silicon nitride
-
- 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
- C04B35/584—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 silicon nitride
- C04B35/591—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 silicon nitride obtained by reaction sintering
-
- 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
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/87—Ceramics
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/02—Pretreatment of the material to be coated
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0087—Uses not provided for elsewhere in C04B2111/00 for metallurgical applications
- C04B2111/00879—Non-ferrous metallurgy
Definitions
- CERAMIC COMPONENTS The procedure is applicable in the treatment and production of molten silicon.
- the thermal stability, chemical compatibility with molten silicon, and the low cost of the composite materials obtained make them suitable candidates in processes of reception and transport of molten silicon, as well as for the melting and purification of silicon.
- the present invention describes an alternative method of manufacturing low-cost ceramic materials, for use in silicon metallurgy.
- These pieces are actually ceramic composites, and consist of two parts with different properties and functions: a structural part and a surface coating of S ⁇ 3N4.
- the structural part can be manufactured with any ceramic material stable at the high temperatures of molten silicon, and has the necessary shape, size, and physical properties in each case.
- the surface coating is stable, inert, and non-polluting of molten silicon, and protects the ceramic and prevents its reaction with silicon.
- the proposed procedure allows obtaining stable ceramic parts and components at high temperatures and suitable for the melting, transport and purification of molten silicon at economical prices, due to the low cost of raw materials and the different manufacturing stages, and with the additional advantage from being very flexible and scalable to different shapes and sizes.
- the procedure consists in the impregnation of ceramic pieces and components, formed and sintered previously, with aqueous suspensions ("slippers") of silicon.
- silicon coatings are obtained on the ceramic surfaces that have been in contact with the slip.
- the subsequent heat treatment of the piece in N2 atmospheres transforms the Si into a continuous surface coating of S ⁇ 3N4 stable and impervious to molten silicon.
- the initial ceramic pieces can be manufactured with any material capable of withstanding the high temperatures of molten silicon (generally between 1500 ° C and 1700 ° C), by any of the different techniques of ceramic processing (casting, injection, hydraulic setting of concrete, turning and mechanization, gelcasting, etc.).
- the choice of the appropriate technique is a function of parameters such as the shape and size of the component, or the required mechanical properties. Ceramics of different composition have been studied for the manufacture of these components, obtaining good results with materials as diverse as graphite, high temperature refractory concretes, silicoaluminous ceramics, alumina, zirconia and zirconates.
- Silicon slippers are prepared by adding silicon powder over the appropriate amount of water under conditions of strong mechanical agitation. Silicon powders of different characteristics have been tested, and it has been proven that it is preferable to use silicon with particle sizes below 200 ⁇ m. The best results are achieved with particles smaller than 75 ⁇ m. When falling on water, silicon dust forms aggregates consisting of a large number of particles, which are impossible to undo only by mechanical agitation. This behavior necessitates the addition of small amounts of deflocculating agents ( ⁇ 0.1% by weight), which break these aggregates and allow the suspension to be homogenized perfectly. Of the different deflocculants tested, the best results have been obtained with ionic organic polymers.
- the use of these compounds allows large amounts of silicon powder to be added to the water while the mixture maintains good creep conditions, essential for later use.
- the best slippers with silicon less than 75 ⁇ m reach solids contents of 72% by weight and viscosities of the order of 1500 Cp, with Dolapix PC-67 (Zschimmer & Schwarz, Chemische Fabriken) as deflocculant.
- Dolapix PC-67 Zaschimmer & Schwarz, Chemische Fabriken
- the solution consists in adding small amounts of gelling agents or plasticizers to the silicon slip. Different compounds have been tested for this purpose (cellulose polymers, agar, carrageenans, alginates, polyethylene glycol, etc.), and the best results are achieved with small amounts of methylcellulose ( ⁇ 1% by weight).
- the surfaces of the original ceramics are impregnated with the silicon slip by procedures such as immersion, pressure casting, gelcasting, etc. Under these conditions, silicon adheres to said surfaces forming a coating whose thickness depends on the properties of the ceramic (porosity and pore size, specific surface, water behavior, etc.), on the characteristics of the slip
- Figure 1 shows the evolution of the thickness of the silicon surface layer formed by immersion of a refractory concrete crucible in a silicon slip, as a function of time. Once the impregnation is over, the remaining slip is removed and allowed to air dry. Final drying is carried out in an oven at 100 ° C for 1 hour.
- the last stage of manufacturing consists in the transformation of the silicon of the coating into SI3N4. This process is performed by a procedure known as silicon nitriding by reactive sintering, which is based on the reaction between silicon and N2 at high temperatures (Moulson, A. J., "Review. Reaction-bonded Silicon Nitride: its
- This reaction takes place at temperatures around 1400 ° C, and does not alter the original dimensions of the silicon coating.
- ceramic composites suitable for silicon metallurgy and for subsequent treatment are obtained. These pieces consist of a high temperature resistant ceramic matrix and a continuous S ⁇ 3N4 surface coating, stable and impermeable to molten silicon, and of controlled thickness.
- An additional advantage of the coating of S ⁇ 3N4 on the graphite components is that its presence prevents the direct contact of said graphite with the O2 of the atmosphere, thus preventing its oxidation and immediate degradation at high air temperatures As a consequence, the graphite components thus protected can also be used in air or other oxidizing environments, which greatly expands the scope of this material.
- Example 1 A cylindrical crucible is manufactured with a high temperature refractory concrete by hydraulic setting, and is calcined for 2 hours at 1350 ° C. The final dimensions of the crucible are 12 cm high, 12 cm internal diameter, 1 cm wall thickness ( Figure 2).
- aqueous slipper with silicon powder smaller than 75 ⁇ m is prepared. To do this, silicon is added to the appropriate amount of water to reach a solids content of 72% by weight, and it is removed with the help of a mechanical propeller stirrer until complete homogenization is achieved. Dolapix PC-67 is used as a deflocculating agent. The total time required for the preparation of the slip is approximately 3 hours.
- the crucible is filled with the silicon slip.
- the impregnation of the crucible walls, with the consequent formation of the silicon surface coating is very rapid, contact times of 20 seconds are sufficient to reach wall thicknesses between 2 and 3 mm.
- the remaining slip is turned over, the mold is allowed to drain, and it is allowed to slowly air dry. Final drying is carried out in an oven at 100 ° C for 1 hour. The remaining slip of this process is recovered and can be used as is for subsequent impregnations of other parts.
- the piece thus prepared is introduced in a controlled atmosphere furnace and nitrided under a constant flow of 0.2 L / min of N2.
- the calcination cycle consists of a first 6-hour ramp at 1350 ° C and a second 6-hour ramp at 1425 ° C.
- the speed of rise and fall of temperature is 10 ° C / min.
- the nitriding percentage reached is 92%.
- Figure 3 the crucible with the coating of S ⁇ 3N4 can be seen.
- a cylindrical graphite crucible of dimensions 14 cm high, 12 cm internal diameter, and 1.5 cm wall thickness, is manufactured by turning and machining from a solid block of graphite ( Figure 4).
- An aqueous slipper of 72% by weight is prepared with silicon powder less than 75 ⁇ m in size. The preparation procedure is identical to that described in Example 1.
- small amounts of methylcellulose (0.4% by weight) are added, and it is stirred for approximately 2 years. hours, until total homogenization is achieved. The result is a slightly more viscous suspension than the original, which easily adheres to graphite.
- the graphite crucible is filled with this suspension, impregnated for 20 seconds and the remaining slip is removed.
- the crucible is allowed to dry slowly with the coating in the air. Final drying is carried out in an oven at 100 ° C for 1 hour.
- the remaining slip of this impregnation stage can be reused later with other parts.
- the nitriding heat treatment consists of a first 6-hour ramp at 1350 ° C, and a second 6-hour ramp at 1425 ° C, under a constant flow of 0.2 L / min of 2.
- the temperature rise and fall speed is from 10 ° C / min.
- the nitriding percentage reached is 90%.
- the finished crucible can be seen in Figure 5.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Products (AREA)
- Silicon Compounds (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/545,985 US7651726B2 (en) | 2003-02-21 | 2004-02-18 | Process for obtaining silicon nitride (SI3N4) surface coatings on ceramic components and pieces |
BRPI0407594-3A BRPI0407594A (pt) | 2003-02-21 | 2004-02-18 | processo para obtenção de revestimentos superficiais de nitreto de silìcio (si3n4) em componentes cerámicos e peças |
EP04712059A EP1595858A1 (en) | 2003-02-21 | 2004-02-18 | METHOD OF OBTAINING SURFACE COATINGS OF SILICON NITRIDE (SI sb 3 /sb N sb 4 /sb ) ON CERAMIC COMPONENTS AND PARTS |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200300434A ES2214139B2 (es) | 2003-02-21 | 2003-02-21 | Procedimiento de obtencion de recubrimientos superficiales de nitruro de silicio sobre piezas y componentes ceramicos. |
ESP200300434 | 2003-02-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004074212A1 true WO2004074212A1 (es) | 2004-09-02 |
Family
ID=32893060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES2004/000071 WO2004074212A1 (es) | 2003-02-21 | 2004-02-18 | Procedimiento de obtención de recubrimientos superficiales de nitruro de silicio (si3n4) sobre piezas y componentes cerámicos. |
Country Status (6)
Country | Link |
---|---|
US (1) | US7651726B2 (es) |
EP (1) | EP1595858A1 (es) |
BR (1) | BRPI0407594A (es) |
ES (1) | ES2214139B2 (es) |
WO (1) | WO2004074212A1 (es) |
ZA (1) | ZA200506574B (es) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2929959B1 (fr) * | 2008-04-10 | 2010-08-27 | Commissariat Energie Atomique | Procede de preparation de polycristaux et de monocristaux d'oxyde de zinc (zno) sur un germe par sublimation activee chimiquement a haute temperature |
DE102010008089B4 (de) * | 2010-02-15 | 2012-12-06 | H.C. Starck Gmbh | Verfahren zur Herstellung eines Werkstücks in Form eines Tiegels für die Photovoltaik |
KR101146944B1 (ko) | 2010-04-14 | 2012-05-22 | 두산중공업 주식회사 | 대면적 전해질 함침형 공기극 제조방법 |
RU2522328C1 (ru) * | 2012-11-21 | 2014-07-10 | Открытое акционерное общество "Обнинское научно-производственное предприятие "Технология" | Способ изготовления кварцевых тиглей |
WO2014143649A1 (en) | 2013-03-15 | 2014-09-18 | Chamberlain Adam L | Ceramic matrix composite and method and article of manufacture |
CN103435370A (zh) * | 2013-08-09 | 2013-12-11 | 天津大学 | 采用共烧结法制备石英陶瓷坩埚高结合强度的氮化硅涂层 |
CN115448731B (zh) * | 2022-10-24 | 2023-07-28 | 攀钢集团研究院有限公司 | 一种钒氮合金用石墨坩埚涂层的制备方法 |
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US4755220A (en) * | 1986-11-18 | 1988-07-05 | Bayer Aktiengesellschaft | Materials resistant to metal and salt melts, their production and their use |
US5252248A (en) * | 1990-07-24 | 1993-10-12 | Eaton Corporation | Process for preparing a base nitridable silicon-containing material |
US6165425A (en) * | 1997-02-06 | 2000-12-26 | Bayer Aktiengesellschaft | Melting pot with silicon protective layers, method for applying said layer and the use thereof |
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Publication number | Priority date | Publication date | Assignee | Title |
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GB1242303A (en) * | 1968-08-28 | 1971-08-11 | American Standard Inc | Process and apparatus for treating steel bodies |
US4943401A (en) * | 1987-12-21 | 1990-07-24 | Eaton Corporation | Process for making silicon nitride articles |
JP3279128B2 (ja) * | 1994-08-12 | 2002-04-30 | 宇部興産株式会社 | 窒化珪素粉末 |
US20030143410A1 (en) * | 1997-03-24 | 2003-07-31 | Applied Materials, Inc. | Method for reduction of contaminants in amorphous-silicon film |
US6582779B2 (en) * | 1999-08-11 | 2003-06-24 | Alliedsignal, Inc. | Silicon nitride components with protective coating |
US20020166503A1 (en) * | 2001-03-08 | 2002-11-14 | Hitco Carbon Composites, Inc. | Hybrid crucible susceptor |
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2003
- 2003-02-21 ES ES200300434A patent/ES2214139B2/es not_active Expired - Fee Related
-
2004
- 2004-02-18 US US10/545,985 patent/US7651726B2/en not_active Expired - Fee Related
- 2004-02-18 EP EP04712059A patent/EP1595858A1/en not_active Withdrawn
- 2004-02-18 BR BRPI0407594-3A patent/BRPI0407594A/pt not_active IP Right Cessation
- 2004-02-18 WO PCT/ES2004/000071 patent/WO2004074212A1/es active Application Filing
-
2005
- 2005-08-17 ZA ZA200506574A patent/ZA200506574B/en unknown
Patent Citations (3)
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EP1595858A1 (en) | 2005-11-16 |
US7651726B2 (en) | 2010-01-26 |
ZA200506574B (en) | 2006-12-27 |
ES2214139A1 (es) | 2004-09-01 |
ES2214139B2 (es) | 2005-03-16 |
BRPI0407594A (pt) | 2006-02-14 |
US20060251816A1 (en) | 2006-11-09 |
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