CN103724029B - A kind of at 1200 DEG C of following ceramic-metal composites that use - Google Patents
A kind of at 1200 DEG C of following ceramic-metal composites that use Download PDFInfo
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- CN103724029B CN103724029B CN201310309233.5A CN201310309233A CN103724029B CN 103724029 B CN103724029 B CN 103724029B CN 201310309233 A CN201310309233 A CN 201310309233A CN 103724029 B CN103724029 B CN 103724029B
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Abstract
The invention discloses a kind of at 1200 DEG C of following ceramic-metal composites that use, it is characterized in that being woven into preform with metal wire mixed condensating fiber, first permeate deposition interface layer by CVI method at preform fiber surface, recycling CVI technology is carried out the preparation of SiC ceramic matrix, finally forms ceramic-metal composite. Wherein, preform is to form with carbon fiber and nickel chromium triangle nickel silicon alloy silk mixed weaving, and carbon fiber and B alloy wire can weave separately, after also can pool capital mixed sth. made by twisting or doubling bunchy, weaves again. Boundary layer is made up of carbon or the BN of layer structure, and the thickness of carbon boundary layer is O.1～0.3 μ m, and the thickness of BN boundary layer is 0.3～0.5 μ m. SiC ceramic matrix accounts for 30～50% of total composite volume. The boundary layer of stratiform not only can be used as barrier layer, can also play transmitted load, the gentle effect of separating thermal mismatching of deflection crackle.
Description
Technical field
The present invention relates to field of compound material, particularly relate to a kind of at 1200 DEG C of following ceramic-metal composites that use.
Background technology
Ceramic matric composite has high than strong, Gao Bimo, the premium properties such as high temperature resistant, anti-oxidant, sends out as liquid rocketMotivation jet pipe, missile-borne radome, space shuttle nose cone, aeroplane brake discs and high-grade automobile brake disc etc., become high-tech green woodAn important branch of material.
But the fragility of pottery is large and the deadly defect such as poor reliability, has hindered for a long time it to be widely used, therefore people for many yearsThe toughness reinforcing approach of always exploring pottery, has obtained important breakthrough in recent years. Ceramic matric composite (CMC) is in Aero-Space warmThe application attestation of structural member, the toughness reinforcing CMC of development continuous fiber is the effective way of improving brittleness of ceramics and reliability, canMake CMC there is the fracture behaviour of metalloid, insensitive to crackle, there is no calamitous damage.
Open (bulletin) number is that the Chinese invention patent of 102785435A discloses a kind of metal/ceramic composite, this metal/ ceramic composite comprises metallic matrix, ceramic coating and intermediate connecting layer. Wherein, intermediate connecting layer is that elastic modelling quantity is lowerSoft metal or alloy, described ceramic coating and metallic matrix are combined closely; And, as the soft gold of intermediate connecting layerThe plasticity that belongs to is good, yield strength is low, can alleviate the residual stress of welding point by plastic deformation and creep etc.
Open (bulletin) number is that the Chinese invention patent of 102774087A discloses a kind of novel metal/ceramic composite, thisMetal/ceramic composite comprises metallic matrix, ceramic coating and intermediate connecting layer. Wherein, described metallic matrix is hardAlloy, described intermediate connecting layer is complex metal layer, comprises the first metal layer that thermal coefficient of expansion is little, elastic modelling quantity is high and mouldsThe second metal level that property is good, described the first metal layer is combined with described ceramic coating, described the second metal level and described metallic matrixIn conjunction with. Novel metal/the ceramic composite of this invention, by intermediate connecting layer make described ceramic coating and metallic matrix tightIn conjunction with, intermediate connecting layer can be alleviated the residual stress of coupling part.
Summary of the invention
The invention provides a kind of ceramic-metal composites 1200 DEG C of following uses, it is characterized in that with B alloy wire composite fibreBe woven into preform, first permeate deposition interface layer by CVI method at preform fiber surface, recycling CVI technology is carried outThe preparation of SiC ceramic matrix, finally forms ceramic-metal composite.
Preform is to form with carbon fiber and nickel chromium triangle nickel silicon alloy silk mixed weaving, and they can weave establishment by 3-D technologyBody fabric, or be first woven into two-dimentional cloth, cloth is wound in cylinder or other 3D shape again. Carbon fiber and B alloy wire can be compiled separatelyKnit, after also can pool capital mixed sth. made by twisting or doubling bunchy, weave again. Wherein, the diameter of nickel chromium triangle nickel silicon alloy silk is 0.03～1mm, in advanceVolume content in formed body is 10%～50%.
Boundary layer is made up of carbon or the BN of layer structure, it is characterized in that, carbon is as boundary layer, and thickness is 0.1～0.3 μ m, andThe thickness of BN boundary layer is 0.3～0.5 μ m.
SiC ceramic matrix is decomposed deposition, is connected fiber gap also by CVI method in precast body by presoma trichloromethyl silaneClosely knit filling forms gradually, accounts for 30～50% of total composite volume.
Due to the good intensity of nickel chromium triangle nisiloy silk, toughness, non-oxidizability and applied at elevated temperature performance, in conjunction with the mechanics of carbon fiber excellencePerformance, complements each other with the premium properties of SiC ceramic matrix, then by carbon or BN boundary layer, both is closely connected, and makes thisCeramic-metal composite excellent performance, can be 1200 DEG C of following long-term uses. Wherein, boundary layer not only can be used as and stopsLayer, can also play transmitted load, the gentle effect of separating thermal mismatching of deflection crackle.
Major advantage of the present invention is: 1. this ceramic-metal composite is fully in conjunction with nickel chromium triangle nickel silicon alloy silk, carbon fiber and potteryThe premium properties of matrix, effectively improves high-temperature oxydation and the toughness problem of matrix material, has played well the effect of complementary enhancing,Can at 1200 DEG C, use for a long time; 2. utilize CVI technology, can under low pressure, low temperature, carry out the preparation of boundary layer and matrix,Material internal residual stress is little, and fiber damaged is little, has kept to the full extent the excellent properties of each matrix material; 3. mix fineDimension is first woven into preform and then carries out coating, the infringement that can avoid knitting process to cause coating, and simplified paintingLayer equipment, boundary layer and ceramic matrix share CVI equipment; 4. boundary layer is by tight to composite fibre preform and ceramic matrixIn conjunction with, its layer structure is cushion load and deflection crackle etc. effectively; 5. can realize the Composition Design on micro-scale,Can prepare the complex-shaped and high nearly size component of fiber volume fraction.
Brief description of the drawings
Fig. 1 is the structural representation of ceramic-metal composite of the present invention.
Diagram 10 is composite fibre preform; 20 is boundary layer; 30 is SiC ceramic matrix.
Fig. 2 is the schematic cross-section of ceramic-metal composite of the present invention.
Diagram 11 is composite fibre preform; 12 is boundary layer; 13 is SiC ceramic matrix.
Detailed description of the invention
Below in conjunction with specific embodiment, further illustrate the present invention, should understand these embodiment only need not for the present invention is describedIn limiting the scope of the invention, after having read the present invention, those skilled in the art repair the various equivalent form of values of the present inventionChange and all fall within the application's claims and limit.
Embodiment 1
By carbon fiber, the mixed sth. made by twisting of nickel chromium triangle nickel silicon alloy silk plying, be woven into the preform of three-dimensional shape by 3 D weaving technology,Controlling fiber content is 60%; For carbon boundary layer, be 0.3 μ m by related process parameter control interfacial layer thickness by CVI legal system;In identical CVI equipment, taking trichloromethyl silane as presoma, decomposite under suitable condition SiC by preform againThe closely knit filling in gap, forms ceramic-metal composite.
Embodiment 2
By carbon fiber, nickel chromium triangle nickel silicon alloy silk doubling bunchy, be first woven into two-dimentional cloth, cloth is wound in cylinder or other 3D shape again,Controlling fiber content is 70%; By CVI legal system for BN boundary layer, by related process parameter control interfacial layer thickness be0.5 μ m; In identical CVI equipment, taking trichloromethyl silane as presoma, decompositing under suitable condition SiC will againThe closely knit filling in preform gap, forms ceramic-metal composite.
Above are only two detailed description of the invention of the present invention, but design concept of the present invention is not limited to this, all this structures that utilizesThink the present invention to carry out the change of unsubstantiality, all should belong to the behavior of invading the scope of protection of the invention. In every case be not depart from thisThe content of invention technical scheme, any type of simple modification of above embodiment being done according to technical spirit of the present invention, etc.With changing and remodeling, still belong to the protection domain of technical solution of the present invention.
Claims (1)
1. at 1200 DEG C of following ceramic-metal composites that use, it is characterized in that being woven by B alloy wire composite fibrePreform, boundary layer and SiC ceramic matrix composition; Described B alloy wire is nickel chromium triangle nickel silicon alloy silk, and diameter is 0.03～1mm,Volume content in preform is 10%～50%; Described fiber is carbon fiber; Described preform be with carbon fiber withNickel chromium triangle nickel silicon alloy silk mixed weaving forms, and they are woven into stereo fabric by 3-D technology, or is first woven into two-dimentional cloth,Cloth is wound in cylinder or other 3D shape again; After the mixed sth. made by twisting of carbon fiber and B alloy wire or separately braiding or plying or doubling bunchy, weave again;Described boundary layer is made up of carbon or the BN of layer structure, and the thickness of carbon boundary layer is 0.1～0.3 μ m, and BN boundary layer is thickDegree is 0.3～0.5 μ m; Described SiC ceramic matrix is in precast body, to be divided by presoma trichloromethyl silane by CVI methodSeparate deposition, connect fiber gap and gradually closely knit filling form, account for 30～50% of total composite volume.
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| CN201310309233.5A CN103724029B (en) | 2013-07-23 | 2013-07-23 | A kind of at 1200 DEG C of following ceramic-metal composites that use |
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| CN201310309233.5A CN103724029B (en) | 2013-07-23 | 2013-07-23 | A kind of at 1200 DEG C of following ceramic-metal composites that use |
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| CN103724029A CN103724029A (en) | 2014-04-16 |
| CN103724029B true CN103724029B (en) | 2016-05-04 |
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| CN107445640A (en) * | 2016-10-12 | 2017-12-08 | 平顺县西沟龙鼎新材料科技有限公司 | A kind of manufacture method of C/SiC novel mechanical sealing rings |
| CN108441791A (en) * | 2018-03-21 | 2018-08-24 | 苏州宏久航空防热材料科技有限公司 | A kind of metal ceramic-based composite material of fibre reinforced |
| CN114486552B (en) * | 2022-01-25 | 2024-03-26 | 长春长光宇航复合材料有限公司 | Method and device for representing interface performance of high-temperature environment of integrated spray pipe |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101818048A (en) * | 2010-01-21 | 2010-09-01 | 中南大学 | Method for preparing copper silicon alloy modified carbon/ceramic friction material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818048A (en) * | 2010-01-21 | 2010-09-01 | 中南大学 | Method for preparing copper silicon alloy modified carbon/ceramic friction material |
Non-Patent Citations (1)
| Title |
|---|
| "钢纤维和莫来石纤维增强陶瓷基摩擦材料的性能研究";王发辉 等;《润滑与密封》;20120229;第37卷(第2期);第8-11、15页 * |
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