CN107216161A - A kind of novel fire resistant ceramic-metal composite and preparation method - Google Patents
A kind of novel fire resistant ceramic-metal composite and preparation method Download PDFInfo
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- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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Abstract
The invention belongs to high-temperature refractory manufacturing technology field there is provided a kind of novel fire resistant ceramic-metal composite and preparation method, the novel fire resistant ceramic-metal composite includes the component of following parts by weight：22 46 parts of carborundum, 18 35 parts of nickel sesquioxide, 5 15 parts of Zirconium oxide fibre, 38 parts of thorium anhydride, 6 12 parts of cesium oxide, 4 10 parts of vanadium diboride, 35 parts of activated alumina, 39 parts of crystalline flake graphite, 0.1 4 parts of binding agent.A kind of novel fire resistant ceramic-metal composite that the present invention is provided, the composite-material formula adds carborundum, activated alumina, crystalline flake graphite, Zirconium oxide fibre, above-mentioned raw materials play the superior function in terms of respective high temperature resistant, in conjunction with other components, so that the ceramic-metal composite prepared obtains prominent resistance to elevated temperatures, the upper limit temperature of heat tolerance is up to 1500 DEG C.
Description
Technical field
The invention belongs to high-temperature refractory manufacturing technology field, in particular it relates to a kind of novel fire resistant cermet
Composite and preparation method.
Background technology
In order that ceramics not only can again not allowed broken with high temperature resistant, people have added a little metals making in ceramic clay
Powder, therefore cermet has been made.Metal based ceramic metal is to add oxide fine powder in metallic matrix to be made, also known as disperse
Reinforcing material.The cermet of broad sense also includes the diamond tool material that infusible compound alloy, hard alloy, metal are bonded
Material.Ceramic phase in cermet is oxide or infusible compound with high-melting-point, high rigidity, and metal phase is mainly transition
Element（Iron, cobalt, nickel, chromium, tungsten, molybdenum etc.）And its alloy.The heat-resistant quality of cermet material, determines cermet material
Special-purpose, ceramic-metal composite prepared by prior art, including ceramic powder, adhesive etc., with higher heat-resisting spy
Property, but its resistance to thermal property still has much room for improvement.
Accordingly, it would be desirable to research and develop a kind of more resistant to elevated temperatures novel metal ceramic composite material and preparation method thereof.
The content of the invention
For defect of the prior art, it is an object of the invention to provide a kind of novel fire resistant ceramic-metal composite
And preparation method.
A kind of novel fire resistant ceramic-metal composite, the novel fire resistant are provided according to an aspect of the present invention
Ceramic-metal composite includes the component of following parts by weight：22-46 parts of carborundum, 18-35 parts of nickel sesquioxide, zirconium oxide
5-15 parts of fiber, 3-8 parts of thorium anhydride, 6-12 parts of cesium oxide, 4-10 parts of vanadium diboride, 3-5 parts of activated alumina, crystalline flake graphite
3-9 parts, 0.1-4 parts of binding agent.
Preferably, the preparation method of the carborundum is as follows：
（1）Weigh carborundum and be ground, carborundum is sorted using hydraulic classiciation conically shaped after grinding, obtain half solid
The carborundum powder of state；
（2）Will（1）The carborundum powder drying of the semisolid of middle acquisition, drying temperature is 60-80 DEG C, and drying time is 50-60s；
（3）Carborundum powder after drying is sent into ultrasonic activation screen device through piping, carborundum powder is trembled after vibration
Fall in collector, you can.
Preferably, it is described（3）The vibration frequency of middle ultrasonic activation sieve is 50Hz.
Preferably, the ratio surface of the activated alumina is 280-360m2/g。
Preferably, the granularity of the crystalline flake graphite is 205-600 μm, and carbon content is 95-99%.
Preferably, the binding agent is furfural resin.
Another aspect of the present invention provides a kind of preparation method of novel fire resistant ceramic-metal composite, the system
Preparation Method comprises the following steps：
（1）Parts by weight according to claim 1 weigh carborundum, nickel sesquioxide, Zirconium oxide fibre, thorium anhydride, cesium oxide,
Vanadium diboride, activated alumina, crystalline flake graphite, binding agent, it is standby；
（2）Will（1）In each raw material be placed in mixer and mixed, mix untill homogeneous, obtain mixture；
（3）Mixture is subjected to ball milling with ball mill；
（4）Mixture after ball milling is placed in hot pressing furnace and carries out high-temperature laminating, heating rate is temperature in 45-60 DEG C/min, stove
Degree is increased to 720-780 DEG C, is incubated at such a temperature after 25-30min, insulation and will heat up speed and be changed to 30-35 DEG C/min, continues
Raise hot pressing in-furnace temperature and arrive 1520-1600 DEG C, time of sintering is to be cooled down after the completion of 2-3.5h, sintering, you can.
Preferably, the cooling velocity is 35-50 DEG C/min.
Compared with prior art, the present invention has following beneficial effect：
（1）A kind of novel fire resistant ceramic-metal composite that the present invention is provided, the composite-material formula adds carborundum, work
Property aluminum oxide, crystalline flake graphite, Zirconium oxide fibre, above-mentioned raw materials play the superior function in terms of respective high temperature resistant, in conjunction with
Other components so that the ceramic-metal composite of preparation obtains prominent resistance to elevated temperatures, and the upper limit temperature of heat tolerance is up to 1500 DEG C；
（2）The activity added in a kind of novel fire resistant ceramic-metal composite that the present invention is provided, the composite-material formula
Aluminum oxide has loose structure, and high-specific surface area possesses the characteristics such as excellent heat endurance, uses it for preparing cermet and answers
Condensation material, improves the heat-resisting quantity of composite.
（3）Added in a kind of novel fire resistant ceramic-metal composite that the present invention is provided, the composite-material formula
Crystalline flake graphite, it is similar to fish phosphorus shape, belongs to hexagonal crystal system, in layer structure, and piece is thin and good toughness, and physical and chemical performance is excellent, with good
Heat conductivity well, electric conductivity, thermal shock resistance, corrosion resistance etc..Under non-oxidizing conditions, flake graphite has high fire resisting
Property：Crystalline flake graphite can form fine and closely woven " buffer strip " between refractory material crystal grain and carbon bonding agent, can absorb thermal stress.Due to it
Nonwetting characteristic, the thermal shock resistance of ceramic-metal composite can be significantly increased, use it for preparing cermet and answer
Condensation material, improves the heat-resisting quantity of composite.
（4）Added in a kind of novel fire resistant ceramic-metal composite that the present invention is provided, the composite-material formula
Carborundum has the features such as corrosion-resistant, high temperature resistant, high intensity, heat conductivility are good, impact resistance is excellent.So it ensure that metal
The high intensity of ceramic composite, heat-resisting quantity, high temperature abrasion resistance etc. are required.
（5）Added in a kind of novel fire resistant ceramic-metal composite that the present invention is provided, the composite-material formula
Its bond strength of furfural resin is high, and resin has good processability, has good toughness again, and be conveniently adjusted structure and property
Can, remain to keep stable at a temperature of higher than 1600 DEG C, be used as preparing the binding agent of ceramic-metal composite, be beneficial to
Processing, and improve the heat-resisting quantity of composite.
（6）Added in a kind of novel fire resistant ceramic-metal composite that the present invention is provided, the composite-material formula
Zirconium oxide fibre is typically used in the fields such as ceramic post sintering, metal smelt, pyrolytic, semiconductor manufacturing, fused quartz melt, is used for
The resistance to superhigh temperature Industrial Stoves for being higher than 1500 DEG C of high temperature above of manufacture, superhigh temperature experimental electric furnace and other superhigh temperature heaters
Deng being alternatively arranged as high-temperature-resistant filtering material and high temperature reaction catalyst carrier.It can be seen that, Zirconium oxide fibre has aobvious in terms of high temperature resistant
The effect of work, uses it for preparing ceramic-metal composite, drastically increases the heat-resisting quantity of composite.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.
Embodiment 1
A kind of novel fire resistant ceramic-metal composite that the present embodiment is provided, the novel fire resistant cermet composite wood
Material includes the component of following parts by weight：46 parts of carborundum, 18 parts of nickel sesquioxide, 15 parts of Zirconium oxide fibre, thorium anhydride 3
Part, 12 parts of cesium oxide, 4 parts of vanadium diboride, 5 parts of activated alumina, 3 parts of crystalline flake graphite, 4 parts of binding agent.
Wherein, the preparation method of the carborundum is as follows：
（1）Weigh carborundum and be ground, carborundum is sorted using hydraulic classiciation conically shaped after grinding, obtain half solid
The carborundum powder of state；
（2）Will（1）The carborundum powder drying of the semisolid of middle acquisition, drying temperature is 80 DEG C, and drying time is 50s；
（3）Carborundum powder after drying is sent into ultrasonic activation screen device through piping, carborundum powder is trembled after vibration
Fall in collector, you can.
Wherein, it is described（3）The vibration frequency of middle ultrasonic activation sieve is 50Hz.
Wherein, the ratio surface of the activated alumina is 360m2/g。
Wherein, the granularity of the crystalline flake graphite is 600 μm, and carbon content is 95%.
Wherein, the binding agent is furfural resin.
Another aspect of the present invention provides a kind of preparation method of novel fire resistant ceramic-metal composite, the system
Preparation Method comprises the following steps：
（1）Parts by weight according to claim 1 weigh carborundum, nickel sesquioxide, Zirconium oxide fibre, thorium anhydride, cesium oxide,
Vanadium diboride, activated alumina, crystalline flake graphite, binding agent, it is standby；
（2）Will（1）In each raw material be placed in mixer and mixed, mix untill homogeneous, obtain mixture；
（3）Mixture is subjected to ball milling with ball mill；
（4）Mixture after ball milling is placed in hot pressing furnace and carries out high-temperature laminating, heating rate is 60 DEG C/min, in-furnace temperature liter
Height is incubated after 30min, insulation to 720 DEG C and will heat up speed and be changed to 30 DEG C/min, continue to raise temperature in hot pressing furnace at such a temperature
Spend to 1600 DEG C, time of sintering is to be cooled down after the completion of 2h, sintering, and the cooling velocity is 50 DEG C/min, you can.
Embodiment 2
A kind of novel fire resistant ceramic-metal composite that the present embodiment is provided, the novel fire resistant cermet composite wood
Material includes the component of following parts by weight：22 parts of carborundum, 35 parts of nickel sesquioxide, 5 parts of Zirconium oxide fibre, 8 parts of thorium anhydride,
6 parts of cesium oxide, 10 parts of vanadium diboride, 3 parts of activated alumina, 9 parts of crystalline flake graphite, 0.1 part of binding agent.
Wherein, the preparation method of the carborundum is as follows：
（1）Weigh carborundum and be ground, carborundum is sorted using hydraulic classiciation conically shaped after grinding, obtain half solid
The carborundum powder of state；
（2）Will（1）The carborundum powder drying of the semisolid of middle acquisition, drying temperature is 60 DEG C, and drying time is 60s；
（3）Carborundum powder after drying is sent into ultrasonic activation screen device through piping, carborundum powder is trembled after vibration
Fall in collector, you can.
Wherein, it is described（3）The vibration frequency of middle ultrasonic activation sieve is 50Hz.
Wherein, the ratio surface of the activated alumina is 280m2/g。
Wherein, the granularity of the crystalline flake graphite is 600 μm, and carbon content is 95%.
Wherein, the binding agent is furfural resin.
Another aspect of the present invention provides a kind of preparation method of novel fire resistant ceramic-metal composite, the system
Preparation Method comprises the following steps：
（1）Parts by weight according to claim 1 weigh carborundum, nickel sesquioxide, Zirconium oxide fibre, thorium anhydride, cesium oxide,
Vanadium diboride, activated alumina, crystalline flake graphite, binding agent, it is standby；
（2）Will（1）In each raw material be placed in mixer and mixed, mix untill homogeneous, obtain mixture；
（3）Mixture is subjected to ball milling with ball mill；
（4）Mixture after ball milling is placed in hot pressing furnace and carries out high-temperature laminating, heating rate is 45 DEG C/min, in-furnace temperature liter
Height is incubated after 25min, insulation to 780 DEG C and will heat up speed and be changed to 35 DEG C/min, continue to raise temperature in hot pressing furnace at such a temperature
Spend to 1520 DEG C, time of sintering is to be cooled down after the completion of 3.5h, sintering, and the cooling velocity is 35 DEG C/min, you can.
Embodiment 3
A kind of novel fire resistant ceramic-metal composite that the present embodiment is provided, the novel fire resistant cermet composite wood
Material includes the component of following parts by weight：36 parts of carborundum, 25 parts of nickel sesquioxide, 11 parts of Zirconium oxide fibre, thorium anhydride 5
Part, 9 parts of cesium oxide, 7 parts of vanadium diboride, 4 parts of activated alumina, 7 parts of crystalline flake graphite, 3 parts of binding agent.
Wherein, the preparation method of the carborundum is as follows：
（1）Weigh carborundum and be ground, carborundum is sorted using hydraulic classiciation conically shaped after grinding, obtain half solid
The carborundum powder of state；
（2）Will（1）The carborundum powder drying of the semisolid of middle acquisition, drying temperature is 64 DEG C, and drying time is 55s；
（3）Carborundum powder after drying is sent into ultrasonic activation screen device through piping, carborundum powder is trembled after vibration
Fall in collector, you can.
Wherein, it is described（3）The vibration frequency of middle ultrasonic activation sieve is 50Hz.
Wherein, the ratio surface of the activated alumina is 290m2/g。
Wherein, the granularity of the crystalline flake graphite is 400 μm, and carbon content is 97%.
Wherein, the binding agent is furfural resin.
Another aspect of the present invention provides a kind of preparation method of novel fire resistant ceramic-metal composite, the system
Preparation Method comprises the following steps：
（1）Parts by weight according to claim 1 weigh carborundum, nickel sesquioxide, Zirconium oxide fibre, thorium anhydride, cesium oxide,
Vanadium diboride, activated alumina, crystalline flake graphite, binding agent, it is standby；
（2）Will（1）In each raw material be placed in mixer and mixed, mix untill homogeneous, obtain mixture；
（3）Mixture is subjected to ball milling with ball mill；
（4）Mixture after ball milling is placed in hot pressing furnace and carries out high-temperature laminating, heating rate is 50 DEG C/min, in-furnace temperature liter
Height is incubated after 28min, insulation to 770 DEG C and will heat up speed and be changed to 33 DEG C/min, continue to raise temperature in hot pressing furnace at such a temperature
Spend to 1600 DEG C, time of sintering is to be cooled down after the completion of 3.5h, sintering, and the cooling velocity is 40 DEG C/min, you can.
Performance test：
Ceramic-metal composite the upper limit temperature of heat tolerance prepared by the present embodiment 1-3 is respectively 1400 DEG C, 1460 DEG C, 1500 DEG C,
And common composite the upper limit temperature of heat tolerance is only 1100 DEG C.As can be seen here, ceramic-metal composite of the invention has
Prominent heat-resisting quantity.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (8)
1. a kind of novel fire resistant ceramic-metal composite, it is characterised in that：The novel fire resistant cermet composite wood
Material includes the component of following parts by weight：22-46 parts of carborundum, 18-35 parts of nickel sesquioxide, 5-15 parts of Zirconium oxide fibre, two
3-8 parts of thorium oxide, 6-12 parts of cesium oxide, 4-10 parts of vanadium diboride, 3-5 parts of activated alumina, 3-9 parts of crystalline flake graphite, binding agent
0.1-4 parts.
2. novel fire resistant ceramic-metal composite according to claim 1, it is characterised in that：The system of the carborundum
Preparation Method is as follows：
（1）Weigh carborundum and be ground, carborundum is sorted using hydraulic classiciation conically shaped after grinding, obtain half solid
The carborundum powder of state；
（2）Will（1）The carborundum powder drying of the semisolid of middle acquisition, drying temperature is 60-80 DEG C, and drying time is 50-60s；
（3）Carborundum powder after drying is sent into ultrasonic activation screen device through piping, carborundum powder is trembled after vibration
Fall in collector, you can.
3. novel fire resistant ceramic-metal composite according to claim 2, it is characterised in that：It is described（3）Middle ultrasound
The vibration frequency of ripple vibratory sieve is 50Hz.
4. novel fire resistant ceramic-metal composite according to claim 1, it is characterised in that：The activated alumina
Ratio surface be 280-360m2/g。
5. novel fire resistant ceramic-metal composite according to claim 1, it is characterised in that：The crystalline flake graphite
Granularity is 205-600 μm, and carbon content is 95-99%.
6. novel fire resistant ceramic-metal composite according to claim 1, it is characterised in that：The binding agent is chaff
Urea formaldehyde.
7. the preparation method of the novel fire resistant ceramic-metal composite as described in claim any one of 1-6, its feature exists
In：Methods described is specific as follows：
（1）Parts by weight according to claim 1 weigh carborundum, nickel sesquioxide, Zirconium oxide fibre, thorium anhydride, cesium oxide,
Vanadium diboride, activated alumina, crystalline flake graphite, binding agent, it is standby；
（2）Will（1）In each raw material be placed in mixer and mixed, mix untill homogeneous, obtain mixture；
（3）Mixture is subjected to ball milling with ball mill；
（4）Mixture after ball milling is placed in hot pressing furnace and carries out high-temperature laminating, heating rate is temperature in 45-60 DEG C/min, stove
Degree is increased to 720-780 DEG C, is incubated at such a temperature after 25-30min, insulation and will heat up speed and be changed to 30-35 DEG C/min, continues
Raise hot pressing in-furnace temperature and arrive 1520-1600 DEG C, time of sintering is to be cooled down after the completion of 2-3.5h, sintering, you can.
8. novel fire resistant ceramic-metal composite according to claim 7, it is characterised in that：The cooling velocity is
35-50℃/min。
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| CN112267019A (en) * | 2020-10-29 | 2021-01-26 | 戴亚洲 | Preparation method of metal ceramic composite wear-resistant material |
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| CN102994877A (en) * | 2012-10-18 | 2013-03-27 | 殷国忠 | Metal ceramic friction material |
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| CN112267019A (en) * | 2020-10-29 | 2021-01-26 | 戴亚洲 | Preparation method of metal ceramic composite wear-resistant material |
| CN113213962A (en) * | 2021-03-16 | 2021-08-06 | 南京航空航天大学 | Porous ceramic with through holes and preparation method and application thereof |
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