CN106747668A - The modifies high heat conduction C/C composites of ZrC organosilane precursors - Google Patents

The modifies high heat conduction C/C composites of ZrC organosilane precursors Download PDF

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Publication number
CN106747668A
CN106747668A CN201710086684.5A CN201710086684A CN106747668A CN 106747668 A CN106747668 A CN 106747668A CN 201710086684 A CN201710086684 A CN 201710086684A CN 106747668 A CN106747668 A CN 106747668A
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Prior art keywords
composites
zrc
heat conduction
high heat
organosilane precursors
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CN201710086684.5A
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朱爱民
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Nantong Suzhong Textile Co Ltd
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Nantong Suzhong Textile Co Ltd
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    • 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
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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
    • 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
    • C04B35/71—Ceramic products containing macroscopic reinforcing agents
    • C04B35/78—Ceramic products containing macroscopic reinforcing agents containing non-metallic materials
    • C04B35/80—Fibres, filaments, whiskers, platelets, or the like
    • C04B35/83—Carbon fibres in a carbon matrix
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3817—Carbides
    • C04B2235/3839—Refractory metal carbides
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
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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
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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
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
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    • C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
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  • Organic Chemistry (AREA)
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  • Inorganic Chemistry (AREA)
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  • Carbon And Carbon Compounds (AREA)

Abstract

The invention provides a kind of modifies high heat conduction C/C composites of ZrC organosilane precursors, its preparation method comprises the following steps：1）ZrC organic precursor powder is coated uniformly on C/C composite material surfaces；2）C/C composites are laid in heat-resisting die；3）Heat-resisting die is put into heat pressing forming machines, being rapidly heated to 500 DEG C carries out hot compression molding；4）Constant pressure insulation obtains modified C/C composite bodies；5）Gained base substrate is carbonized and graphitization processing.The modifies high heat conduction C/C composites of ZrC organosilane precursors of the invention are a kind of high heat conduction C/C composites of function admirable, with good high heat conduction effect.

Description

The modifies high heat conduction C/C composites of ZrC organosilane precursors
Technical field
The present invention relates to a kind of modifies high heat conduction C/C composites of ZrC organosilane precursors, belong to chemical materials technology neck Domain.
Background technology
It with Carbon fibe or its fabric is enhancing phase that C/C composites refer to, with the pyrolytic carbon or liquid phase of chemical vapor infiltration The resin carbon of dipping-charing, a kind of pure charcoal heterogeneous structure that asphalt carbon is matrix composition.It comes from, the U.S. in 1958 Chance-Vought companies exceed temperature, resin carbon when Carbon fibe polymer matrix composites solidify due to laboratory accident Change forms C/C composites.
Charcoal/charcoal（C/C）Composite is a kind of novel high-performance structure, functional composite material, with high intensity, Gao Mo The excellent specific properties such as amount, high-fracture toughness, high heat conduction, heat-insulated excellent and low-density, in machinery, electronics, chemical industry, metallurgy and nuclear energy etc. It is used widely in field, and is widely applied on critical component in space flight, aviation and national defence.China is to C/C The research and development of composite is concentrated mainly on the high-tech sectors such as space flight, aviation, less to set foot in civilian high-performance, low cost The research of C/C composites.Holistic approach is also rested in the pursuit to material macro property, to materials microstructure and performance The basic research such as controllability, adjustability are also quite weak, it is difficult to meet need of the national economic development to high-performance C/C composites Ask.Therefore, the basic research for carrying out high-performance C/C composites has great scientific meaning and social and economic benefits.
Country's history in terms of C/C composite researchs is shorter, and investigation of materials lies substantially in the exploratory stage.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art part, there is provided a kind of modifies high heat conduction of ZrC organosilane precursors C/C composites.
The modifies high heat conduction C/C composites of ZrC organosilane precursors of the invention, its preparation method comprises the following steps：
1）ZrC organic precursor powder is coated uniformly on C/C composite material surfaces；
2）C/C composites are laid in heat-resisting die；
3）Heat-resisting die is put into heat pressing forming machines, being rapidly heated to 500 DEG C carries out hot compression molding；
4）Constant pressure insulation obtains modified C/C composite bodies；
5）Gained base substrate is carbonized and graphitization processing.
Preferably,
Described step 3）In, the speed being rapidly heated is 25-35 DEG C/min.
Described step 4）In, the time of described constant pressure insulation is 6-8h.
Described step 5）In, described charing process temperature is 800-1200 DEG C.
Described step 5）In, described graphitization processing temperature is 2500-3500 DEG C.
The modifies high heat conduction C/C composites of ZrC organosilane precursors of the invention are that a kind of high heat conduction C/C of function admirable is answered Condensation material, with good high heat conduction effect.
Specific embodiment
Embodiment 1
The modifies high heat conduction C/C composites of ZrC organosilane precursors of the invention, its preparation method comprises the following steps：
1）ZrC organic precursor powder is coated uniformly on C/C composite material surfaces；
2）C/C composites are laid in heat-resisting die；
3）Heat-resisting die is put into heat pressing forming machines, being rapidly heated to 500 DEG C carries out hot compression molding；
4）Constant pressure insulation obtains modified C/C composite bodies；
5）Gained base substrate is carbonized and graphitization processing.
Described step 3）In, the speed being rapidly heated is 25 DEG C/min.
Described step 4）In, the time of described constant pressure insulation is 6h.
Described step 5）In, described charing process temperature is 1200 DEG C.
Described step 5）In, described graphitization processing temperature is 2500 DEG C.
Embodiment 2
The modifies high heat conduction C/C composites of ZrC organosilane precursors of the invention, its preparation method comprises the following steps：
1）ZrC organic precursor powder is coated uniformly on C/C composite material surfaces；
2）C/C composites are laid in heat-resisting die；
3）Heat-resisting die is put into heat pressing forming machines, being rapidly heated to 500 DEG C carries out hot compression molding；
4）Constant pressure insulation obtains modified C/C composite bodies；
5）Gained base substrate is carbonized and graphitization processing.
Described step 3）In, the speed being rapidly heated is 35 DEG C/min.
Described step 4）In, the time of described constant pressure insulation is 8h.
Described step 5）In, described charing process temperature is 800 DEG C.
Described step 5）In, described graphitization processing temperature is 3500 DEG C.
Embodiment 3
The modifies high heat conduction C/C composites of ZrC organosilane precursors of the invention, its preparation method comprises the following steps：
1）ZrC organic precursor powder is coated uniformly on C/C composite material surfaces；
2）C/C composites are laid in heat-resisting die；
3）Heat-resisting die is put into heat pressing forming machines, being rapidly heated to 500 DEG C carries out hot compression molding；
4）Constant pressure insulation obtains modified C/C composite bodies；
5）Gained base substrate is carbonized and graphitization processing.
Described step 3）In, the speed being rapidly heated is 30 DEG C/min.
Described step 4）In, the time of described constant pressure insulation is 7h.
Described step 5）In, described charing process temperature is 1000 DEG C.
Described step 5）In, described graphitization processing temperature is 3000 DEG C.

Claims (5)

  1. The modifies high heat conduction C/C composites of 1.ZrC organosilane precursors, it is characterised in that its preparation method comprises the following steps：
    1）ZrC organic precursor powder is coated uniformly on C/C composite material surfaces；
    2）C/C composites are laid in heat-resisting die；
    3）Heat-resisting die is put into heat pressing forming machines, being rapidly heated to 500 DEG C carries out hot compression molding；
    4）Constant pressure insulation obtains modified C/C composite bodies；
    5）Gained base substrate is carbonized and graphitization processing.
  2. 2. modifies high heat conduction C/C composites of ZrC organosilane precursors according to claim 1, it is characterised in that described Step 3）In, the speed being rapidly heated is 25-35 DEG C/min.
  3. 3. modifies high heat conduction C/C composites of ZrC organosilane precursors according to claim 1, it is characterised in that described Step 4）In, the time of described constant pressure insulation is 6-8h.
  4. 4. modifies high heat conduction C/C composites of ZrC organosilane precursors according to claim 1, it is characterised in that described Step 5）In, described charing process temperature is 800-1200 DEG C.
  5. 5. modifies high heat conduction C/C composites of ZrC organosilane precursors according to claim 1, it is characterised in that described Step 5）In, described graphitization processing temperature is 2500-3500 DEG C.
CN201710086684.5A 2017-02-17 2017-02-17 The modifies high heat conduction C/C composites of ZrC organosilane precursors Pending CN106747668A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104230367A (en) * 2014-09-10 2014-12-24 武汉科技大学 SiC-ZrC-ZrB2 nano complex phase ceramic modified C/C composite material and preparation method thereof
CN105692589A (en) * 2016-03-14 2016-06-22 中国科学院上海应用物理研究所 Preparation method of glassy carbon material based on modified phenolic resin precursor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104230367A (en) * 2014-09-10 2014-12-24 武汉科技大学 SiC-ZrC-ZrB2 nano complex phase ceramic modified C/C composite material and preparation method thereof
CN105692589A (en) * 2016-03-14 2016-06-22 中国科学院上海应用物理研究所 Preparation method of glassy carbon material based on modified phenolic resin precursor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
陈强等: "原位制备ZrC改性碳/碳复合材料及抗烧蚀性能研究", 《机械科学与技术》 *

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