CN107382289A - Ceramic body and its preparation method and application - Google Patents
Ceramic body and its preparation method and application Download PDFInfo
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- CN107382289A CN107382289A CN201710709407.5A CN201710709407A CN107382289A CN 107382289 A CN107382289 A CN 107382289A CN 201710709407 A CN201710709407 A CN 201710709407A CN 107382289 A CN107382289 A CN 107382289A
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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
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
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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
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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
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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
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
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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
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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- 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
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3239—Vanadium oxides, vanadates or oxide forming salts thereof, e.g. magnesium vanadate
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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
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
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Abstract
The present invention discloses a kind of ceramic body and its preparation method and application, it is related to technical field of ceramic material, it is poor to improve existing ceramic body mechanical performance, it can not well adapt to function ceramics coating and easily ftracture, and the technical problem easily cracked under high temperature.Ceramic body provided by the invention is mainly prepared according to percent by weight by following raw material：Al2O350 80%, MgO 2 15%, Cr2O32 5%, SiO22 40%, V2O50.1 0.7%.The present invention also provides the preparation method of ceramic body, this method technique is simple, raw material is easy to get, cost is relatively low, it can effectively ensure that the uniformity and stability of ceramic body property, there is preferable mechanical performance simultaneously, can preferably be adapted to function ceramics coating, effectively prevent the technical problem easily cracked under cracking or high temperature.The present invention also provides application of the ceramic body in household electrical appliance.
Description
Technical field
The present invention relates to technical field of ceramic material, in particular to a kind of ceramic body and preparation method thereof and answers
With.
Background technology
With the high development of science and technology, people are to the performance of ceramic material, quality and require more and more higher, promote
Part Chinaware Progression turns into the new material with specific function type.No matter upper in performance and use this kind of ceramics are, still
Require that height is fine in manufacture craft, therefore usually referred to as fine ceramics or function ceramics.
Function ceramics product generally includes function ceramics coating and ceramic body, and wherein ceramic body is function ceramics production
The basal body structure of product, the mechanical performance such as coefficient of expansion, toughness, intensity and heat-resisting quantity etc. of ceramic body all can be to finally giving
Function ceramics property produce material impact.For example, the coefficient of expansion of ceramic body is generally and function ceramics in the prior art
Coating can not well adapt to, and easily cause function ceramics product to ftracture；Or because the heat-resisting quantity of ceramic body is poor, and make
Function ceramics product easily cracks at relatively high temperatures or malformation.
In view of this, it is special to propose the present invention.
The content of the invention
The present invention first purpose be to provide a kind of ceramic body, with improve existing ceramic body mechanical performance compared with
Difference, it can not well adapt to function ceramics coating and easily ftracture, and the technical problem easily cracked under high temperature.
Second object of the present invention is to provide a kind of preparation method of above-mentioned ceramic body, this method use present invention
Component is as raw material, and with simple, the easily operated advantage of technique, and raw material is easy to get, and cost is relatively low, can effectively ensure that pottery
The uniformity and stability of porcelain billet body product property, while there is preferable mechanical performance, can be more preferable with function ceramics coating
Adaptation, effectively prevent the technical problem that easily cracks under cracking or high temperature.
Third object of the present invention is above-mentioned in the application in a kind of above-mentioned ceramic body of offer in household electrical appliance, application
The household electrical appliance of ceramic body are in addition to possessing the function of electrical equipment in itself, high temperature resistant, wear-resisting also with preferable mechanical performance
Damage, there is higher hardness and toughness, can effectively extend the service life of household electrical appliance.
To achieve these goals, it is special to use following technical scheme：
The present invention provides a kind of ceramic body, according to percent by weight, is mainly prepared by following raw material：Al2O3
50-80%, MgO 2-15%, Cr2O32-5%, SiO22-40%, V2O50.1-0.7%.
Alternatively, mainly it is prepared according to percent by weight, ceramic body provided by the invention by following raw material：
Al2O355-80%, MgO 3-10%, Cr2O33-5%, SiO25-40%, V2O50.2-0.7%.
Preferably, mainly it is prepared according to percent by weight, ceramic body provided by the invention by following raw material：
Al2O355-75%, MgO 5-10%, Cr2O34-5%, SiO210-35%, V2O50.2-0.6%.
Further, ceramic body provided by the invention also includes ceramic dispersant special.
The present invention also provides a kind of preparation method of the ceramic body, comprises the following steps：By Al2O3、MgO、Cr2O3、
SiO2And V2O5Added by formula rate in ball mill, and add optional ceramic dispersant special, ball milling, and cross and screen out
Iron, slurry is made after heat-activated, after carrying out extrusion forming, by drying, pre-burning and sintering, obtains ceramic body.
Alternatively, in the preparation method of ceramic body of the present invention, the temperature of heat-activated is 550-650 DEG C, heating
The time of activation is 3.5-4.5h.
Alternatively, in the preparation method of ceramic body of the present invention, drying temperature is 70-90 DEG C, drying time 10-
12h；Calcined temperature is 900-1100 DEG C, burn-in time 7-9h.
Alternatively, in the preparation method of ceramic body of the present invention, sintering temperature is 1500-1700 DEG C, sintering time
For 3-5h.
Preferably, in the preparation method of ceramic body of the present invention, comprise the following steps：By Al2O3、MgO、Cr2O3、
SiO2And V2O5Added by formula rate in ball mill, and add optional ceramic dispersant special, ball milling, and cross and screen out
Iron, is made slurry after 600 DEG C of heat-activated 4h, after carrying out extrusion forming, in 70-90 DEG C of dry 10-12h, in 900-1100
DEG C pre-burning 7-9h, 3-5h finally is sintered at 1500-1700 DEG C, obtains ceramic body；
Preferably, molding mode is hot-forming, by hot-forming obtained ceramic blank by de-waxing, sintering, to obtain
Ceramic body；Sintering temperature is 850-1050 DEG C, sintering time 4-6h；
Preferably, the mode of shaping is extrusion moulding, by the ceramic blank that extrusion moulding obtains carry out plastic removal, sizing and
Sintering；Plastic removal temperature is 170-190 DEG C, and the plastic removal time is 22-24h；Setting temperature is 750-850 DEG C；Sintering temperature is 1300-
1400 DEG C, sintering time 3-5h.
Further, the present invention also provides application of the ceramic body in household electrical appliance.
Compared with prior art, beneficial effects of the present invention are：
(1) in ceramic body of the present invention, Al is selected2O3And SiO2As the main composition of ceramic body, at the same be aided with MgO,
Cr2O3、V2O5, the physical and chemical performance and mechanical strength of ceramic body obtained by can effectively improving, and each group component selections
Ratio is suitable, and ceramic body can be made to have the relatively low coefficient of expansion, preferably suitable so as to have with function ceramics coating
Ying Xing, the problem of effectively can avoiding easily ftractureing after ceramic body surface application function ceramics coating；Simultaneously can also
The resistance to elevated temperatures and antioxygenic property of ceramic body, and uniform hue are effectively improved, property is stable.
(2) preparation method of the present invention uses instant component as raw material, has simple, the easily operated advantage of technique,
And raw material is easy to get, cost is relatively low, can effectively ensure that the uniformity and stability of ceramic body product property, at the same have compared with
It good mechanical performance, can preferably be adapted to function ceramics coating, effectively prevent what is easily cracked under cracking or high temperature
Technical problem.
(3) household electrical appliance of the above-mentioned ceramic body of application are in addition to possessing the function of electrical equipment in itself, also with preferable machine
Tool performance, high temperature resistant is wear-resistant, has higher hardness and toughness, can effectively extend the service life of household electrical appliance.
Embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment and embodiment, but this area skill
Art personnel will be understood that following embodiments and embodiment are merely to illustrate the present invention, and be not construed as the model of the limitation present invention
Enclose.Unreceipted actual conditions person, the condition suggested according to normal condition or manufacturer are carried out.Agents useful for same or the unreceipted life of instrument
Manufacturer person is produced, is the conventional products that can be obtained by commercially available purchase.
Heretofore described " mainly by ... ", it is intended that it can also include other components in addition to the component, these
Other components assign the ceramic body different characteristics.In addition, " mainly by ... " of the present invention, can also replace
It is changed to enclosed " for " or " by ... ".
According to an aspect of the present invention, embodiment of the present invention provides a kind of ceramic body, according to percent by weight,
Mainly it is prepared by following raw material：Al2O350-80%, MgO 2-15%, Cr2O32-5%, SiO22-40%, V2O5
0.1-0.7%.
In the ceramic body that embodiment of the present invention provides, Al is selected2O3And SiO2As the main composition of ceramic body,
It is aided with MgO, Cr simultaneously2O3、V2O5, the physical and chemical performance and mechanical strength of ceramic body obtained by can effectively improving, and
The ratio of each group component selections is suitable, and ceramic body can be made to have the relatively low coefficient of expansion, so as to function ceramics coating
With well adapting to property, it can effectively avoid that easily ftractures to ask after applying function ceramics coating on the ceramic body surface
Topic；The resistance to elevated temperatures and antioxygenic property of ceramic body, and uniform hue can also be effectively improved simultaneously, and property is stable.
Alternatively, Al2O3Percetage by weight it is typical but it is non-limiting be 50%, 52%, 55%, 57%, 60%, 62%,
65%th, 68%, 70%, 72%, 75%, 77%, 79% or 80%.
In the present invention, Al2O3One of primary raw material as ceramic body, it is possible to increase the physical chemistry of ceramic body
Performance and mechanical strength, while improve whiteness.Due to selecting the Al of Optimum Contents2O3, therefore ceramic body can either be effectively ensured
Shaping easily is cooked, the problem of and can enough prevents ceramic body to be easily deformed or be weak.
Alternatively, it is 2% that MgO percetage by weight is typical but non-limiting, 3%, 4%, 5%, 6%, 7%, 8%,
9%th, 10%, 11%, 12%, 13%, 14% or 15%.
In the present invention, what is used can be high-purity magnesium oxide, and outward appearance is white powder, and purity is high, and specific surface area is big, point
It is good to dissipate property.MgO can play fluxing effect, while also correspondingly improve the heat endurance and mechanical strength of ceramic body, have
Effect mediation tone, eliminates the harmful effect of impurity coloured ion.
Alternatively, SiO2Percetage by weight it is typical but it is non-limiting be 2%, 5%, 8%, 10%, 12%, 15%,
18%th, 20%, 22%, 25%, 28%, 30%, 33%, 35%, 37%, 39% or 40%.
In the present invention, SiO2One of primary raw material as ceramic body, the machinery of ceramic body can be effectively improved
Intensity, hardness, wearability and heat endurance, in addition SiO2Base substrate can be reduced dries contraction, shortens drying time, prevents base
Body deforms, the SiO in sintering2Heating expansion can be with the contraction of partial offset base substrate.Due to the SiO containing Optimum Contents2,
SiO2With Al2O3Mullite crystal can be generated in high temperature, mullite crystal can form the skeleton structure of ceramic body, from
And effectively prevent ceramic body easy cracked phenomenon at high temperature.
Alternatively, Cr2O3Percetage by weight it is typical but it is non-limiting be 2%, 2.5%, 3%, 3.5%, 4%, 4.5%
Or 5%.
Alternatively, V2O5Percetage by weight it is typical but it is non-limiting be 0.1%, 0.2%, 0.3%, 0.4%, 0.5%,
0.6% or 0.7%.
In the present invention, Cr2O3And V2O5Antioxidant can be used as, effectively improves the antioxygenic property of ceramic body, also
Reduction thermal coefficient of expansion is can aid in, while is also used as illuminating colour, effectively adjusts the shade of color of ceramic body, this
Also there is preferable fast light, weather resistance, effective antirust and uvioresistant outside.
Alternatively, the ceramic body that embodiment of the present invention provides, according to percent by weight, mainly by following raw material system
It is standby to obtain：Al2O355-80%, MgO 3-10%, Cr2O33-5%, SiO25-40%, V2O50.2-0.7%.
By carrying out Reasonable adjustment to the content of each raw material components, the physical chemistry of ceramic body can be effectively improved
Can, there is lower thermal coefficient of expansion, so as to preferably be combined with function ceramics coating, in addition have higher hardness with
Toughness, resistance to elevated temperatures is more preferably.
Preferably, the ceramic body that embodiment of the present invention provides, according to percent by weight, mainly by following raw material system
It is standby to obtain：Al2O355-75%, MgO 5-10%, Cr2O34-5%, SiO210-35%, V2O50.2-0.6%.
Alternatively, in order to effectively prevent phenomenon that ceramic body raw material in preparation process is easily reunited, the present invention
In the ceramic body that embodiment provides, in addition to ceramic dispersant special.
Alternatively, ceramic dispersant special is typical but non-limiting for oleyl amine acetate, alkyl quaternary ammonium salts, amino
Propylamine dioleate, quaternary amine, special modification polyamino amidophosphoric acid salt in one kind or at least two.
Alternatively, ceramic dispersant special is the commercially available prod of purchase.
According to another aspect of the present invention, embodiment of the present invention also provides a kind of preparation side of above-mentioned ceramic body
Method, comprise the following steps：By Al2O3、MgO、Cr2O3、SiO2And V2O5Add in ball mill, and added optionally by formula rate
Ceramic dispersant special, ball milling, and iron removaling of sieving, slurry is made after heat-activated, after carrying out extrusion forming, through overdrying
Dry, pre-burning and sintering, obtain ceramic body.
The preparation method that embodiment of the present invention provides uses instant component to have technique simple as raw material, be easy to
The advantage of operation, and raw material is easy to get, cost is relatively low, can effectively ensure that the uniformity and stably of ceramic body product property
Property, while there is preferable mechanical performance, it can preferably be adapted to function ceramics coating, effectively prevent from holding under cracking or high temperature
It is also easy to produce the technical problem of crackle.
Alternatively, in order to ensure that raw mill is abundant, while the phenomenon of raw material agglomerate grain in process of lapping is prevented,
In the preparation method for the ceramic body that embodiment of the present invention provides, each raw material components are added in ball mill by proportioning and done
Formula ball milling 45-50h.
Alternatively, the time of dry type ball milling is 45h, 46h, 47h, 48h, 49h or 50h.
Alternatively, each raw material components of ceramic body are added into ball mill ball milling fineness to more than 180 mesh by proportioning, so
After sieve iron removaling.
Alternatively, in order to improve the grade of raw material, avoid influenceing the performance and presentation quality of ceramic body, the present invention is implemented
In the preparation method for the ceramic body that mode provides, by each raw material components by proportioning add ball mill in grind uniformly after, it is necessary to
The process of sieving iron removaling is carried out, electric magnetic iron remover or rare earth permanent magnet iron removing stick can be selected to carry out iron removaling, after ensureing iron removaling
Raw material made from ceramic body performance and presentation quality it is higher.
Alternatively, in order to improve the shaping of raw material and sintering character, each composition is made to be in high surface energy and the shape of high activity
State, improves plasticity, and in the preparation method for the ceramic body that embodiment of the present invention provides, raw material can be with after iron removaling of sieving
Heat-activated is carried out, the temperature of heat-activated is 550-650 DEG C, and the time of heat-activated is 3.5-4.5h.Heat-activated processing
The performance of shaping and sintering is advantageously reduced, realizes the effect for saving the energy.
Alternatively, it is 550 DEG C that the temperature of heat-activated is typical but non-limiting, 560 DEG C, 570 DEG C, 580 DEG C, 590 DEG C,
600 DEG C, 610 DEG C, 620 DEG C, 630 DEG C, 640 or 650 DEG C, the time of heat-activated it is typical but it is non-limiting for 3.5h, 4.0h or
4.5h。
Alternatively, in order to realize preferable molding effect, in the preparation method that embodiment of the present invention provides, first to extruding
Ceramic blank after shaping is dried and pre-burning, and drying temperature is 70-90 DEG C, drying time 10-12h；Calcined temperature is
900-1100 DEG C, burn-in time 7-9h.
Alternatively, it is 70 DEG C that drying temperature is typical but non-limiting, 72 DEG C, 75 DEG C, 77 DEG C, 79 DEG C, 80 DEG C, 82 DEG C, 85
DEG C, 87 DEG C, 89 DEG C or 90 DEG C；Typical but non-limiting drying time is 10h, 10.5h, 11h, 11.5h or 12h.
Alternatively, it is 900 DEG C that calcined temperature is typical but non-limiting, 920 DEG C, 940 DEG C, 950 DEG C, 960 DEG C, 980 DEG C,
990 DEG C, 1000 DEG C, 1020 DEG C, 1050 DEG C, 1070 DEG C or 1100 DEG C；Burn-in time it is typical but it is non-limiting for 7h, 7.5h, 8h,
8.5h or 9h.
Alternatively, embodiment of the present invention provide ceramic body preparation method in, after extrusion forming, first dry and
Pre-burning, then it is sintered, sintering temperature is 1500-1700 DEG C, sintering time 3-5h.
Alternatively, it is 1500 DEG C that sintering temperature is typical but non-limiting, 1520 DEG C, 1550 DEG C, 1570 DEG C, 1600 DEG C,
1620 DEG C, 1650 DEG C, 1670 DEG C, 1690 DEG C or 1700 DEG C；Sintering time is 3h, 3.5h, 4h, 4.5h or 5h.
A kind of preferably embodiment of method produced according to the present invention, the preparation method of ceramic body include following step
Suddenly：By Al2O3、MgO、Cr2O3、SiO2And V2O5Added by formula rate in ball mill, and add optional ceramic Special dispersing
Agent, ball milling, and iron removaling of sieving, slurry is made after 600 DEG C of heat-activated 4h, it is dry at 70-90 DEG C after carrying out extrusion forming
Dry 10-12h, in 900-1100 DEG C of pre-burning 7-9h, 3-5h finally is sintered at 1500-1700 DEG C, obtains ceramic body；
Preferably, molding mode is hot-forming, by hot-forming obtained ceramic blank by de-waxing, sintering, to obtain
Ceramic body；Sintering temperature is 850-1050 DEG C, sintering time 4-6h；
It is highly preferred that molding mode is hot-forming, by hot-forming obtained ceramic blank by de-waxing, sintering, obtain
To ceramic body；Sintering temperature is 1000 DEG C, sintering time 5h；
Preferably, the mode of shaping is extrusion moulding, by the ceramic blank that extrusion moulding obtains carry out plastic removal, sizing and
Sintering；Plastic removal temperature is 170-190 DEG C, and the plastic removal time is 22-24h；Setting temperature is 750-850 DEG C；Sintering temperature is 1300-
1400 DEG C, sintering time 3-5h.
It is highly preferred that the mode of shaping is extrusion moulding, the ceramic blank that extrusion moulding obtains is being subjected to plastic removal, sizing
And sintering；Plastic removal temperature is 180 DEG C, and the plastic removal time is 23h；Setting temperature is 800 DEG C；Sintering temperature is 1350 DEG C, during sintering
Between be 4h.
Alternatively, ceramic dispersant special for purchase commercially available prod, it is typical but it is non-limiting be ceramic dispersant special
DL-884 or HT-5030.
Embodiment of the present invention also provides a kind of application of above-mentioned ceramic body in household electrical appliance.
Using the household electrical appliance of above-mentioned ceramic body in addition to possessing the function of electrical equipment in itself, also with preferable mechanicalness
Can, high temperature resistant, it is wear-resistant, there is higher hardness and toughness, can effectively extend the service life of household electrical appliance.
Alternatively, the surface for the ceramic body that embodiment of the present invention provides can also contain covered with function ceramics coating
The ceramic body of functional ceramic coating is arranged on household electrical appliance (such as ripples stove, warm-air drier, water purifier, water cleaning systems, beauty
Instrument, humidifier, electric fan or insulating pot) in, it can make the corresponding part of household electrical appliance that there is preferable mechanical strength, hard
Degree, high temperature resistant, wear-resistant, effective service life for extending household electrical appliance；In addition ceramic body can also have function ceramics to apply
Layer possessed by act on, such as function ceramics coating can emitting far-infrared and anion, then include corresponding ceramic body
Household electrical appliance when in use also can emitting far-infrared and anion, there is direct health care effect so as to act on after human body
Fruit, human body cell can be stimulated, improve metabolism and immunocompetence.
With reference to specific embodiment and comparative example, the invention will be further described.
Embodiment 1
According to percetage by weight, following preparing raw material is weighed：Al2O350%, MgO 15%, Cr2O35%, SiO2
29.0%, V2O50.1%.
The preparation method of ceramic body is：By Al2O3、MgO、Cr2O3、SiO2And V2O5Ball mill is added by formula rate
In, and optional ceramic dispersant special is added, ball milling is to 200 mesh, and iron removaling of sieving, after 600 DEG C of heat-activated 4h
Slurry is made, after carrying out extrusion forming, in 70 DEG C of dry 12h, in 900 DEG C of pre-burning 9h, finally sinters 3h at 1700 DEG C, is made pottery
Porcelain billet body.
Embodiment 2
According to percetage by weight, following preparing raw material is weighed：Al2O380%, MgO 2%, Cr2O32%, SiO2
15.3%, V2O50.7%.
The preparation method of ceramic body is：By Al2O3、MgO、Cr2O3、SiO2And V2O5Ball mill is added by formula rate
In, and optional ceramic dispersant special is added, ball milling is to 200 mesh, and iron removaling of sieving, after 600 DEG C of heat-activated 4h
Slurry is made, after carrying out extrusion forming, in 90 DEG C of dry 10h, in 1100 DEG C of pre-burning 7h, finally sinters 5h at 1500 DEG C, obtains
Ceramic body.
Embodiment 3
According to percetage by weight, following preparing raw material is weighed：Al2O365%, MgO 10%, Cr2O34%, SiO2
10.5%, V2O50.5%.
The preparation method of ceramic body is：By Al2O3、MgO、Cr2O3、SiO2And V2O5Ball mill is added by formula rate
In, and optional ceramic dispersant special is added, ball milling is to 200 mesh, and iron removaling of sieving, after 600 DEG C of heat-activated 4h
Slurry is made, after carrying out extrusion forming, in 80 DEG C of dry 11h, in 1000 DEG C of pre-burning 8h, finally sinters 4h at 1600 DEG C, obtains
Ceramic body.
Embodiment 4
According to percetage by weight, following preparing raw material is weighed：Al2O360%, MgO 8%, Cr2O33%, SiO2
28.8%, V2O50.2%.
The preparation method of ceramic body is the same as embodiment 3.
Embodiment 5
According to percetage by weight, following preparing raw material is weighed：Al2O352.4%, MgO 5%, Cr2O32%, SiO2
40%, V2O50.6%.
The preparation method of ceramic body is the same as embodiment 3.
Embodiment 6
According to percetage by weight, following preparing raw material is weighed：Al2O370.7%, MgO 12%, Cr2O34%, SiO2
13%, V2O50.3%.
The preparation method of ceramic body is the same as embodiment 3.
Embodiment 7
Raw material components are same as Example 3.
The preparation method of ceramic body is：By Al2O3、MgO、Cr2O3、SiO2And V2O5Ball mill is added by formula rate
In, and optional ceramic dispersant special is added, ball milling is to 200 mesh, and iron removaling of sieving, after 600 DEG C of heat-activated 4h
Add beeswax and slurry is made in ceramic dispersant special, progress is hot-forming, after de-waxing, sinters 5h at 1050 DEG C, obtains ceramics
Base substrate.
Embodiment 8
Raw material components are same as Example 3.
The preparation method of ceramic body is：The preparation method of ceramic body is：By Al2O3、MgO、Cr2O3、SiO2And V2O5
Being added by formula rate in ball mill, and add optional ceramic dispersant special, ball milling is to 200 mesh, and iron removaling of sieving,
Beeswax is added after 600 DEG C of heat-activated 4h and slurry is made in ceramic dispersant special, carries out extrusion moulding, ceramic blank exists
180 DEG C of plastic removal 24h, shape after reaching 800 DEG C, then sinter 4h at 1350 DEG C, obtain ceramic body.
Comparative example 1
According to percetage by weight, Al is weighed2O340%, other raw material components and content with embodiment 3 and do adaptability tune
It is whole.
The preparation method of ceramic body is the same as embodiment 3.
Comparative example 2
According to percetage by weight, Al is weighed2O390%, other raw material components and content with embodiment 3 and do adaptability tune
It is whole.
The preparation method of ceramic body is the same as embodiment 3.
Comparative example 3
According to percetage by weight, SiO is weighed21%, other raw material components and content with embodiment 3 and do adaptability tune
It is whole.
The preparation method of ceramic body is the same as embodiment 3.
Comparative example 4
According to percetage by weight, SiO is weighed250%, other raw material components and content with embodiment 3 and do adaptability tune
It is whole.
The preparation method of ceramic body is the same as embodiment 3.
Comparative example 5
According to percetage by weight, Cr is weighed2O31%, other raw material components and content with embodiment 3 and do adaptability tune
It is whole.
The preparation method of ceramic body is the same as embodiment 3.
Comparative example 6
According to percetage by weight, Cr is weighed2O38%, other raw material components and content with embodiment 3 and do adaptability tune
It is whole.
The preparation method of ceramic body is the same as embodiment 3.
Comparative example 7
According to percetage by weight, V is weighed2O50.05%, other raw material components and content with embodiment 3 and do adaptability tune
It is whole.
The preparation method of ceramic body is the same as embodiment 3.
Comparative example 8
According to percetage by weight, V is weighed2O51%, other raw material components and content with embodiment 3 and do accommodation.
The preparation method of ceramic body is the same as embodiment 3.
Detection and interpretation of result
Physical and chemical performance detection is carried out to ceramic body made from 1-8 of the embodiment of the present invention and comparative example 1-8.Detection knot
Fruit is shown in Table 1.
The testing result of the ceramic body of table 1
As can be seen from Table 1, compared with comparative example 1-8, the mechanical performance of ceramic body made from embodiment 1-8 is more
It is good.The coefficient of expansion of ceramic body is relatively low made from embodiment 1-8, is more suitable for adapting to other function ceramics coatings, corresponding
The problem of glazing of ceramic body surface is avoided that easy cracking；Vickers hardness, fracture toughness and bending strength are higher, have compared with
High wearability and weatherability, combination property are superior.In addition, ceramic body highest heatproof of the present invention can reach 1500 DEG C, heat
Stability is stronger, and significantly difference variation is all without making ceramic body ftracture.
Compared with comparative example 1 and comparative example 2, Al in embodiment 32O3Content it is suitable, therefore ceramic body have it is higher
Hardness, fracture toughness and bending strength；Al in comparative example 12O3Content it is too low, easily cause ceramic body deformation or it is weak, into
Type is poor, Al in comparative example 22O3Too high levels, easily cause ceramic body to be not easy to cook, obtained ceramic body compared with
Crisp, fracture toughness and bending strength are relatively low.Compared with comparative example 3 and comparative example 4, SiO in embodiment 32Content it is suitable, because
This ceramic body has higher hardness, fracture toughness and bending strength；SiO in comparative example 32Content it is too low, easily cause
Ceramic body deforms, and hardness and wearability are relatively low, and thermal coefficient of expansion is higher, so that easily being ftractureed under high temperature, in comparative example 4
SiO2Too high levels, cause ceramic body sinter after heat endurance be deteriorated, easily there is the phenomenon burst.With comparative example 5
Compared with comparative example 6, Cr in embodiment 32O3Content it is suitable, therefore ceramic body has the relatively low coefficient of expansion and higher
Fracture toughness, it can preferably adapt to other function ceramics coatings or glaze, the problem of avoiding easily ftractureing, additionally can
The antioxygenic property of ceramic body is effectively improved, there is preferably weatherability；Cr in comparative example 62O3Content than in embodiment 3
Height, corresponding hardness, fracture toughness and bending strength be not more preferable than in embodiment 3, and Cr2O3Cost of material increase, be not inconsistent
Close the requirement of actual production.Compared with comparative example 7 and comparative example 8, V in embodiment 32O5Content it is suitable, therefore ceramic body have
There are the relatively low coefficient of expansion and higher fracture toughness, can preferably adapt to, avoid with other function ceramics coatings or glaze
Easily the problem of cracking, the antioxygenic property of ceramic body can be additionally effectively improved, there is preferably weatherability, comparative example
V in 82O5Content it is higher than in embodiment 3, corresponding hardness, fracture toughness and bending strength be not more preferable than in embodiment 3, and
V2O5Cost of material increase, do not meet the requirement of actual production.
In addition, it can effectively ensure that the machine of the part using after having ceramic body of the present invention in the parts of household electrical appliance
Tool superior performance, effectively improve the service life of household electrical appliance.When ceramic body surface of the present invention is covered with function ceramics coating
Or after glaze (such as function with radiation far infrared and anion), ceramic body can be made except possessing the machinery of itself
Outside performance, also with function ceramics coating or the corresponding function of glaze, so that being removed using the household electrical appliance for having the ceramic body
Possess outside the function of electrical equipment itself, also there is the function ceramics coating or glaze (such as radiation far infrared and negative
Ion), thus there is preferable health-care effect.
Although illustrate and describing the present invention with specific embodiment, but will be appreciated that without departing substantially from the present invention's
In the case of spirit and scope, many other change and modification can be made.It is, therefore, intended that in the following claims
Including belonging to all such changes and modifications in the scope of the invention.
Claims (10)
1. a kind of ceramic body, it is characterised in that according to percent by weight, be mainly prepared by following raw material：
Al2O350-80%, MgO 2-15%, Cr2O32-5%, SiO22-40%, V2O50.1-0.7%.
2. ceramic body according to claim 1, it is characterised in that according to percent by weight, mainly by following raw material
It is prepared：
Al2O355-80%, MgO 3-10%, Cr2O33-5%, SiO25-40%, V2O50.2-0.7%.
3. ceramic body according to claim 2, it is characterised in that according to percent by weight, mainly by following raw material
It is prepared：
Al2O355-75%, MgO 5-10%, Cr2O34-5%, SiO210-35%, V2O50.2-0.6%.
4. according to the ceramic body described in claim any one of 1-3, it is characterised in that also including ceramic dispersant special.
5. the preparation method of any one of a kind of claim 1-4 ceramic body, it is characterised in that comprise the following steps：
By Al2O3、MgO、Cr2O3、SiO2And V2O5Added by formula rate in ball mill, and add optional ceramic Special dispersing
Agent, ball milling, and iron removaling of sieving, slurry is made after heat-activated, after carrying out extrusion forming, by drying, pre-burning and burning
Knot, obtains ceramic body.
6. preparation method according to claim 5, it is characterised in that the temperature of heat-activated is 550-650 DEG C, and heating is lived
The time of change is 3.5-4.5h.
7. preparation method according to claim 6, it is characterised in that drying temperature is 70-90 DEG C, drying time 10-
12h；
Calcined temperature is 900-1100 DEG C, burn-in time 7-9h.
8. preparation method according to claim 7, it is characterised in that sintering temperature is 1500-1700 DEG C, and sintering time is
3-5h。
9. according to the preparation method described in claim any one of 5-8, it is characterised in that comprise the following steps：
By Al2O3、MgO、Cr2O3、SiO2And V2O5Added by formula rate in ball mill, and add optional ceramic Special dispersing
Agent, ball milling, and iron removaling of sieving, slurry is made after 600 DEG C of heat-activated 4h, it is dry at 70-90 DEG C after carrying out extrusion forming
Dry 10-12h, in 900-1100 DEG C of pre-burning 7-9h, 3-5h finally is sintered at 1500-1700 DEG C, obtains ceramic body；
Preferably, molding mode is hot-forming, by hot-forming obtained ceramic blank by de-waxing, sintering, to obtain ceramics
Base substrate；Sintering temperature is 850-1050 DEG C, sintering time 4-6h；
Preferably, the mode of shaping is extrusion moulding, and the ceramic blank that extrusion moulding obtains is being carried out into plastic removal, sizing and burning
Knot；Plastic removal temperature is 170-190 DEG C, and the plastic removal time is 22-24h；Setting temperature is 750-850 DEG C；Sintering temperature is 1300-
1400 DEG C, sintering time 3-5h.
10. application of any one of the claim 1-4 ceramic bodies in household electrical appliance.
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| CN201710709407.5A CN107382289A (en) | 2017-08-17 | 2017-08-17 | Ceramic body and its preparation method and application |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108706981A (en) * | 2018-06-29 | 2018-10-26 | 界首市东城群海彩陶工作室 | A kind of ceramic green body reinforcing agent increasing slurry mobility |
| CN108911719A (en) * | 2018-09-25 | 2018-11-30 | 湖南福美来电子陶瓷有限公司 | A kind of composite ceramics |
| CN114394825A (en) * | 2021-12-22 | 2022-04-26 | 西北工业大学宁波研究院 | Ceramic material and preparation method and application thereof |
-
2017
- 2017-08-17 CN CN201710709407.5A patent/CN107382289A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108706981A (en) * | 2018-06-29 | 2018-10-26 | 界首市东城群海彩陶工作室 | A kind of ceramic green body reinforcing agent increasing slurry mobility |
| CN108911719A (en) * | 2018-09-25 | 2018-11-30 | 湖南福美来电子陶瓷有限公司 | A kind of composite ceramics |
| CN114394825A (en) * | 2021-12-22 | 2022-04-26 | 西北工业大学宁波研究院 | Ceramic material and preparation method and application thereof |
| CN114394825B (en) * | 2021-12-22 | 2023-10-31 | 西北工业大学宁波研究院 | Ceramic material and preparation method and application thereof |
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