CN106588125A - Production method of C/C composite material gradient anti-oxidation coating - Google Patents

Production method of C/C composite material gradient anti-oxidation coating Download PDF

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Publication number
CN106588125A
CN106588125A CN201611215625.5A CN201611215625A CN106588125A CN 106588125 A CN106588125 A CN 106588125A CN 201611215625 A CN201611215625 A CN 201611215625A CN 106588125 A CN106588125 A CN 106588125A
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China
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composite material
coating
composites
sic ceramic
ceramic powder
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CN201611215625.5A
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Inventor
国礼杰
尹孝辉
李申申
高银银
张向忠
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Anhui University of Technology AHUT
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Anhui University of Technology AHUT
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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
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
    • 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
    • C04B35/52—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 carbon, e.g. graphite
    • 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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • 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
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/89—Coating or impregnation for obtaining at least two superposed coatings having different compositions
    • 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
    • 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
    • C04B2235/66—Specific sintering techniques, e.g. centrifugal sintering
    • C04B2235/665—Local sintering, e.g. laser 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts
    • C04B2235/9684—Oxidation resistance

Abstract

The invention discloses a production method of a C/C composite material gradient anti-oxidation coating, and belongs to a production technology of C/C composite material gradient anti-oxidation coatings. The method comprises the following steps: carrying out surface roughening treatment on a C/C composite material, preparing required SiC ceramic powder and mixed powder which is composed of the SiC ceramic powder and ZrB2, successively coating the surface of the C/C composite material with the SiC ceramic powder and the mixed powder in a layered manner to obtain a SiC ceramic powder coating and a mixed powder coating, and drying the coated composite material for later use; and carrying out surface cladding on the dried C/C composite material through adopting laser cladding in order to produce the C/C composite material gradient anti-oxidation coating. The method allows the coating with excellent combination and excellent anti-oxidation ability to be obtained; and the C/C composite material anti-oxidation coating obtained through the method widens the use temperature of the C/C composite material and meets needs of practical application, so the application range of the C/C composite material is enlarged.

Description

A kind of preparation method of C/C composites gradient ORC
Technical field：
The invention belongs to C/C composite ORC technologies of preparing, and in particular to a kind of C/C composites gradient resists The preparation method of oxide covering.
Background technology：
C/C composites are that current only a few can be in one of material of 2000 DEG C of higher force performances maintained above, and it has Have a series of excellent properties such as low-density, Gao Biqiang, Gao Bimo, low thermal coefficient of expansion, heat shock resistance, resistance to ablation, especially this Plant the special performance that the intensity of material goes up not down with the rising of temperature so as to as the high-tech sector heat structure such as Aero-Space Part uses the advantage hardly matched with other materials.Because C/C compound material antioxygenic properties are poor, significantly limit its Use under oxidation environment.High-temperature oxidation resistant research is always the focus and difficult point of heat structure C/C composite research fields.Closely Nian Lai, by the joint efforts of domestic and international researcher, the research of C/C composites ORC achieves certain progress, but Still suffer from many problems.ZrB2- SiC complex phase ceramics have high-melting-point, high rigidity, excellent as a kind of superhigh temperature ceramic material Heat shock resistance and relatively low oxidation rate, have important application prospect and value in high-temperature structural material field.Prepare gradient ZrB2- SiC complex phase ceramic coatings can largely solve the problems referred to above of C/C composites ORC presence.
The content of the invention：
Present invention aim at providing a kind of preparation method of C/C composites gradient ORC, the inventive method It is obtained in that the ORC of excellent performance.
A kind of preparation method of C/C composites gradient ORC provided by the present invention, the method concrete steps It is as follows：
(1) C/C composites are carried out into surface coarsening process；
(2) SiC ceramic powder and mixed powder needed for preparing, the mixed powder is by SiC ceramic powder and ZrB2Composition, will be described SiC ceramic powder and the mixed powder priority layered coated obtain SiC ceramic powder coating and mixing in the C/C composite material surfaces Powder coating, it is standby after drying；
(3) by drying after the C/C composites surface cladding is carried out using laser melting coating, be obtained the C/C be combined Material gradient ORC.
The SiC ceramic powder and the ZrB2Mass ratio be：1:(1-1:5).
The thickness of the SiC ceramic powder coating and mixing powder coating is 1mm.
The specific process parameter of the laser melting coating is：Laser power 2.4kW, spot diameter 4mm, scanning speed 300mm/ Min, overlapping rate 30-80%.
Coating and the C/C composites obtained using the present invention belongs to metallurgical binding, and interface bond strength is high, coating be with SiC is the gradient coating in intermediate layer, alleviates C/C composites and ZrB2Internal stress between anti oxidation layer, between coating and matrix Without defects such as crackle, pores, the thermal expansion matching sex chromosome mosaicism of coating and C/C matrices of composite materials is solved, improve C/C and be combined Material against oxidative temperature.
Description of the drawings：
Fig. 1 is ZrB2- SiC ORC scanning electron microscope (SEM) photographs；
Fig. 2 is ZrB2- SiC ORCs surface XRD spectrum.
Specific embodiment：
Embodiment 1：A kind of preparation method of C/C composites gradient ORC.First, with 400# sand paper by C/C Composite material test piece carries out surface coarsening process.Then required SiC ceramic powder and mass ratio SiC are weighed respectively with electronic balance: ZrB2=1:1 mixed-powder；By SiC ceramic powder powder and SiC+ZrB2Mixed-powder priority layered coated is in C/C composites Surface of test piece, thickness is 1mm, standby after drying.C/C composite material test pieces after drying are carried out into table using laser melting and coating technique Face cladding, laser power 2.4kW, spot diameter 4mm, scanning speed 300mm/min, overlapping rate 30%.
Embodiment 2：A kind of preparation method of C/C composites gradient ORC.First, with 400# sand paper by C/C Composite material test piece carries out surface coarsening process.Then required SiC ceramic powder and mass ratio SiC are weighed respectively with electronic balance: ZrB2=1:2 mixed-powder；By SiC ceramic powder powder and SiC+ZrB2Mixed-powder priority layered coated is in C/C composites Surface of test piece, thickness is 1mm, standby after drying.C/C composite material test pieces after drying are carried out into table using laser melting and coating technique Face cladding, laser power 2.4kW, spot diameter 4mm, scanning speed 300mm/min, overlapping rate 50%.
Embodiment 3：A kind of preparation method of C/C composites gradient ORC.First, with 400# sand paper by C/C Composite material test piece carries out surface coarsening process.Then required SiC ceramic powder and mass ratio SiC are weighed respectively with electronic balance: ZrB2=1:5 mixed-powder；By SiC ceramic powder powder and SiC+ZrB2Mixed-powder priority layered coated is in C/C composites Surface of test piece, thickness is 1mm, standby after drying.C/C composite material test pieces after drying are carried out into table using laser melting and coating technique Face cladding, laser power 2.4kW, spot diameter 4mm, scanning speed 300mm/min, overlapping rate 60%.
Fig. 1 is that obtained ZrB2-SiC ORCs have the offbeat form for being different from sintering ceramics.Can by figure See that interface generates continuous reaction phase, interface molding is good, the presence without pore, crackle and remaining sealing wire.Fig. 2 is ZrB2- SiC ORC X-ray diffraction spectrums, coating is by ZrB2With the biphase compositions of SiC.
By embodiment 1, embodiment 2 and embodiment 3, laser melting coating prepares C/C composite ZrB2- SiC gradient antioxidation The method of coating can be obtained on C/C matrices of composite materials surface and combine excellent, the excellent coating of oxidation resistance.

Claims (4)

1. a kind of preparation method of C/C composites gradient ORC, it is characterised in that the method is comprised the following steps that：
(1) C/C composites are carried out into surface coarsening process；
(2) SiC ceramic powder and mixed powder needed for preparing, the mixed powder is by SiC ceramic powder and ZrB2Composition, by the SiC ceramic Powder and the mixed powder priority layered coated obtain SiC ceramic powder coating and mixing powder coating in the C/C composite material surfaces, It is standby after drying；
(3) by drying after the C/C composites surface cladding is carried out using laser melting coating, be obtained the C/C composites Gradient ORC.
2. a kind of preparation method of C/C composites gradient ORC according to claim 1, it is characterised in that institute SiC ceramic powder is stated with the ZrB2Mass ratio be：1:(1-1:5).
3. a kind of preparation method of C/C composites gradient ORC according to claim 1, it is characterised in that institute The thickness for stating SiC ceramic powder coating and mixing powder coating is 1mm.
4. a kind of preparation method of C/C composites gradient ORC according to claim 1, it is characterised in that institute The specific process parameter for stating laser melting coating is：Laser power 2.4kW, spot diameter 4mm, scanning speed 300mm/min, overlapping rate 30-80%.
CN201611215625.5A 2016-12-26 2016-12-26 Production method of C/C composite material gradient anti-oxidation coating Pending CN106588125A (en)

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN108218473A (en) * 2017-12-26 2018-06-29 宜兴市天宇世纪高新科技有限公司 The preparation method of low temperature antioxidant coating in a kind of carbon material surface
CN109735789A (en) * 2019-01-25 2019-05-10 航天材料及工艺研究所 A kind of polynary Zr/Hf base superelevation fusing point carbide antioxidant coating and preparation method thereof
CN110981548A (en) * 2019-12-27 2020-04-10 西北工业大学 Laser repairing method for crack of C/C composite ultrahigh-temperature ceramic coating
CN114907145A (en) * 2022-06-10 2022-08-16 辽宁奥亿达新材料有限公司 Silicon carbide coating adhesive on surface of carbon fiber composite material and preparation and use method thereof

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108218473A (en) * 2017-12-26 2018-06-29 宜兴市天宇世纪高新科技有限公司 The preparation method of low temperature antioxidant coating in a kind of carbon material surface
CN109735789A (en) * 2019-01-25 2019-05-10 航天材料及工艺研究所 A kind of polynary Zr/Hf base superelevation fusing point carbide antioxidant coating and preparation method thereof
CN110981548A (en) * 2019-12-27 2020-04-10 西北工业大学 Laser repairing method for crack of C/C composite ultrahigh-temperature ceramic coating
CN114907145A (en) * 2022-06-10 2022-08-16 辽宁奥亿达新材料有限公司 Silicon carbide coating adhesive on surface of carbon fiber composite material and preparation and use method thereof

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