CN108793996A - Blue-green zirconia ceramics feedstock composition, blue-green zirconia ceramics and preparation method thereof - Google Patents
Blue-green zirconia ceramics feedstock composition, blue-green zirconia ceramics and preparation method thereof Download PDFInfo
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Abstract
The present invention relates to a kind of blue-green zirconia ceramics feedstock compositions, zirconia ceramics and preparation method thereof.A kind of blue-green zirconia ceramics feedstock composition, including zirconia ceramics material of main part and additive, the additive include the first additive, Second addition；First additive is nickel oxide, and the Second addition is selected from least one of aluminium oxide and gallium oxide；In the blue-green zirconia ceramics feedstock composition, the mass percentage of first additive is 0.01%~5%, and the mass percentage of the Second addition is 0.01%~15%.It is not easy to collapse when above-mentioned blue-green zirconia ceramics feedstock composition processing scarce.
Description
Technical field
The present invention relates to a kind of blue-green zirconia ceramics feedstock composition, blue-green zirconia ceramics and its preparation sides
Method.
Background technology
Zirconium dioxide is due to excellent mechanics, calorifics and electric property, in structural material, optical material, the quick member of oxygen
It has a wide range of applications in terms of part and fuel cell.In recent years, zirconia ceramics is with its excellent mechanical performance and wear-resisting property
As new lover's material, it is widely used in fields such as decoration, electronic products.However, existing zirconia ceramics is difficult to
Processing, is easy to collapse in process scarce so that and yield rate is told somebody what one's real intentions are, to limit the application of zirconia ceramics, and it is several at present
There is no blue-green zirconia ceramics.
Invention content
Based on this, it is necessary to provide and be not easy to collapse scarce blue-green zirconia ceramics feedstock composition, oxygen when a kind of processing
Change zircon ceramic and preparation method thereof.
A kind of blue-green zirconia ceramics feedstock composition, including zirconia ceramics material of main part and additive, it is described to add
It includes the first additive, Second addition to add agent；First additive is nickel oxide, and the Second addition is selected from aluminium oxide
And at least one of gallium oxide；In the blue-green zirconia ceramics feedstock composition, the quality hundred of first additive
It is 0.01%~5% to divide content, and the mass percentage of the Second addition is 0.01%~15%.
Adding for special formulation is added in above-mentioned blue-green zirconia ceramics feedstock composition in zirconia ceramics material of main part
Adding agent to improve processing performance, additive includes the first additive and Second addition, and two kinds of additive formulas are reasonable, so as to
Processing performance is enough significantly improved, through measuring, blue-green zirconium oxide is made pottery made of blue-green zirconia ceramics feedstock composition
The toughness and hardness matching degree of porcelain are preferable, are easily worked, be less prone to collapse it is scarce；By to above-mentioned zirconia ceramics material of main part and
The ratio of additive is adjusted the blue-green zirconia ceramics that can form different tones.
The additive further includes third additive in one of the embodiments, and the third additive is selected from oxidation
The mass percentage of at least one of magnesium, calcium oxide, zinc oxide, barium monoxide and strontium oxide strontia, the third additive is
0.01%~5%.
The additive further includes yttrium oxide in one of the embodiments, the blue-green zirconia ceramics raw material group
The mass percentage for closing yttrium oxide described in object is 2.5%~7.85%.
The mass percentage of first additive is 0.1%~1.5%, described the in one of the embodiments,
The mass percentage of two additives is 0.1%~6%, the mass percentage of the third additive is 0.1%~
3.5%.
It is 0.05 μm~1.50 μ that the blue-green zirconia ceramics feedstock composition, which is D50, in one of the embodiments,
M, specific surface area 8m2/ g~18m2The powder of/g.
The blue-green zirconia ceramics that above-mentioned blue-green zirconia ceramics feedstock composition is prepared.
In one of the embodiments, the blue-green zirconia ceramics be converted into polishing after 0.5mm equivalent thickness,
Light transmittance < 35% under 550nm wavelength, SCI chromatic values are L >=50, -25≤a≤- 1, -20≤b≤5.
A kind of preparation method of blue-green zirconia ceramics, includes the following steps：
Above-mentioned blue-green zirconia ceramics feedstock composition is uniformly mixed and obtains premix；And
By the premix molding and be sintered obtain blue-green zirconia ceramics.
Specific implementation mode
Below in conjunction with specific implementation mode to blue-green zirconia ceramics feedstock composition, blue-green zirconia ceramics and
Preparation method is further described in detail.
The blue-green zirconia ceramics feedstock composition of one embodiment, including zirconia ceramics material of main part and addition
Agent.Additive includes the first additive, Second addition.First additive is nickel oxide.Second addition be selected from aluminium oxide and
At least one of gallium oxide.
Zirconia ceramics material of main part is mainly zirconium oxide.Certainly, in order to improve the performance of zirconia ceramics material of main part,
It is also possible to mix some other components in zirconium oxide.
In some embodiments, zirconia ceramics material of main part further includes hafnium oxide, and zirconia ceramics material of main part is
Zirconium oxide containing hafnium oxide.Specifically, the mass ratio of hafnium oxide and zirconium oxide is 5：95.Certainly, in other embodiments,
The mass ratio of hafnium oxide and zirconium oxide can be adjusted as needed.
In blue-green zirconia ceramics feedstock composition, the mass percentage of the first additive is 0.01%~5%.?
In one embodiment, the mass percentage of the first additive is 0.1%~1.5%.Certainly in other embodiments,
The mass percentage of first additive be 0.1%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4% or
4.5%.
In blue-green zirconia ceramics feedstock composition, the mass percentage of Second addition is 0.01%~15%.
The mass percentage of Second addition is 0.1%~6% in one of the embodiments,.Certainly in other embodiments,
The mass percentage of Second addition be 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%,
13%, 14%, 15%, 16%, 17%, 18% or 19%.
In some embodiments, blue-green zirconia ceramics feedstock composition includes 0.01%~10% aluminium oxide.
Further, the mass percentage of aluminium oxide is 1%~7% in blue-green zirconia ceramics feedstock composition.Certainly at it
In his embodiment, the mass percentage of aluminium oxide is 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9% or 10%.
Further, the mass percentage of gallium oxide is 1%~5% in blue-green zirconia ceramics feedstock composition.
Certainly in other examples, the mass percentage of gallium oxide is 0.5%, 1%, 2%, 3%, 4% or 5%.
Further include third additive in blue-green zirconia ceramics feedstock composition in a wherein embodiment, the
Three additives are selected from least one of magnesia, calcium oxide, zinc oxide, barium monoxide and strontium oxide strontia, the blue-green zirconium oxide
The mass percentage of third additive is 0.01%~5% in ceramic material composition.
In some embodiments, the mass percentage of third additive is 0.1%~3.5%.Certainly in other realities
It applies in mode, the mass percentage of the first additive is 0.1%, 0.5%, 1%, 1.5%, 2%, 2.5% or 3%.
In some embodiments, additive further includes yttrium oxide.It is aoxidized in blue-green zirconia ceramics feedstock composition
The mass percentage of yttrium is 2.5%~7.85%.Further, yttrium oxide in blue-green zirconia ceramics feedstock composition
Mass percentage is 3%~6.3%.Certainly in other embodiments, the mass percentage of yttrium oxide be 3%,
3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7% or 7.5%.
It is 0.05 μm~1.50 μm that blue-green zirconia ceramics feedstock composition, which is D50, in one of the embodiments, than
Surface area is 6m2/ g~25m2The powder of/g, it is preferred that specific surface area 8m2/ g~18m2/g。
It should be noted that in above-mentioned blue-green zirconia ceramics feedstock composition, by adjusting zirconia ceramics main body
The content of material so that the gross mass percentage composition of all components meets 100%.
Certainly, in order to further enhance the performance of blue-green zirconia ceramics, the component of other modifications can also be added,
This is not repeated one by one.
It, can be to zirconia ceramics material of main part and additive in order to obtain the blue-green zirconia ceramics of different tones
Content and the concrete composition of additive are adjusted, to obtain the blue-green zirconia ceramics of different tones.
Adding for special formulation is added in above-mentioned blue-green zirconia ceramics feedstock composition in zirconia ceramics material of main part
Add agent to improve processing performance, additive includes the first additive, Second addition and third additive, several additive formulas
Rationally, zirconia ceramics feedstock composition is formed by atoms such as nickel, magnesium, calcium, zinc, barium, strontium, aluminium, galliums to containing hafnium oxide
The surface of zirconia grains coats, and one layer of oxide skin(coating) is formed on the zirconia grains surface containing hafnium oxide, due to using table
Bread coating technique is doped, and neither influences the stabilization solid solution system of yttria-zirconia, while inhibiting zirconia grains long
Greatly, the anti-aging property and thermal stability of zirconia ceramics can be effectively improved.In addition, nickel oxide, magnesia, calcium oxide, oxidation
Spinel structure made of zinc, barium monoxide, strontium oxide strontia, aluminium oxide and gallium oxide are sintered as raw material has excellent high-temperature stable
Property, even if will not occur decomposing at a temperature of 1450 DEG C~1550 DEG C and gamut.Through measuring, blue-green zirconium oxide pottery
The toughness of blue-green zirconia ceramics and hardness matching degree are preferable made of porcelain feedstock composition, are easily worked, are less prone to and collapse
It lacks；The blue-green oxygen of different tones can be formed by being adjusted by the ratio to above-mentioned zirconia ceramics material of main part and additive
Change zircon ceramic.
It is understood that the technical solution of multiple embodiments of foregoing description without conflicting with each other can be into
Row combination application.
Above-mentioned blue-green zirconia ceramics composition is by the way that zirconia ceramics material of main part to be mixed to get with additive.
The blue-green zirconia ceramics of one embodiment is prepared by above-mentioned blue-green zirconia ceramics feedstock composition
It arrives.
In one of the embodiments, blue-green zirconia ceramics be converted into polishing after 0.5mm equivalent thickness,
Light transmittance < 35% under 550nm wavelength, SCI chromatic values are L >=50, -25≤a≤- 1, -20≤b≤5.
For above-mentioned blue-green zirconia ceramics through measuring, toughness and hardness matching degree are preferable, are easily worked, are less prone to
It collapses scarce.
The preparation method of above-mentioned blue-green zirconia ceramics, includes the following steps：
Step S110, blue-green zirconia ceramics feedstock composition is uniformly mixed and obtains premix.
Blue-green zirconia ceramics feedstock composition is the blue-green zirconia ceramics material combination of above-described embodiment description
Object.
The grinding of each raw material of zirconia ceramics material of main part and additive is sufficiently mixed in one of the embodiments,
To premix.Further, grinding can be sand milling, ball milling.Further, ball milling is wet ball grinding or dry ball milling.
Additive is precipitated by mixing the corresponding salting liquid of each raw material with aqueous slkali in one of the embodiments,
Reaction, is precipitated and calcines to obtain.Grinding obtains premix after ceramic zirconium oxide ceramic body material is mixed with additive.
Further, aqueous slkali is sodium hydroxide solution.Salting liquid be at least one of chloride solution or nitrate solution, herein
The corresponding meaning is that the corresponding salting liquid of magnesia is magnesium chloride solution or magnesium nitrate solution.Further, grinding can be sand
Mill, ball milling.Further ball milling is wet ball grinding or dry ball milling.
Step S120, by premix molding and be sintered obtain blue-green zirconia ceramics.
Premix is granulated in one of the embodiments, to obtain ceramic powder, isostatic cool pressing compression moulding is sintered later
Obtain blue-green zirconia ceramics.Further, the pressure of isostatic cool pressing compression moulding is 100MPa.Further, sintering
Technological parameter is：1400 DEG C~1430 DEG C are risen to the heating rate of 2 DEG C/min, heat preservation 1.5h~2h is sintered.
Above-mentioned several embodiments, the merely illustrative several preparation methods for listing blue-green zirconia ceramics need
It is noted that blue-green zirconia ceramics is not limited to use above-mentioned preparation method, other preparation method systems in the industry may be used
It is standby.
The preparation method of above-mentioned blue-green zirconia ceramics, easy to operate, the blue-green zirconia ceramics being prepared exists
It is not easy to collapse during processing scarce.Harsh preparation side must be used by changing the blue-green zirconia ceramics of current similar demand
Method, which is just avoided that, collapses scarce drawback.
It is specific embodiment below.
Content in following embodiment is mass percentage, and number is mass fraction.Such as without spy in following embodiment
Different explanation does not include then that other in addition to inevitable impurity do not point out component.
The zirconia ceramics material of main part used in following embodiment is the zirconium oxide containing hafnium oxide, hafnium oxide and oxidation
The mass ratio of zirconium is 5：95.
Embodiment 1
The composition of blue-green zirconia ceramics feedstock composition and the specific surface area of zirconia ceramics material of main part are shown in Table 1.
It is dried to obtain premix after blue-green zirconia ceramics feedstock composition is sufficiently mixed dispersion with ball milling；It will premix
Material is granulated and obtains ceramic powder；Ceramic powder is pressed into tablet with 100MPa isostatic cool pressings, after with the heating rate of 2 DEG C/min
1430 DEG C are risen to, heat preservation 1.5h obtains blue-green zirconia ceramics.
Embodiment 2
The composition of blue-green zirconia ceramics feedstock composition and the specific surface area of zirconia ceramics material of main part are shown in Table 1.
It is dried to obtain premix after blue-green zirconia ceramics feedstock composition is sufficiently mixed dispersion with ball milling；It will premix
Material is granulated and obtains ceramic powder；Ceramic powder is pressed into tablet with 100MPa isostatic cool pressings, after with the heating rate of 2 DEG C/min
1430 DEG C are risen to, heat preservation 1.5h obtains blue-green zirconia ceramics.
Embodiment 3
The composition of blue-green zirconia ceramics feedstock composition and the specific surface area of zirconia ceramics material of main part are shown in Table 1.
It is dried to obtain premix after blue-green zirconia ceramics feedstock composition is sufficiently mixed dispersion with ball milling；It will premix
Material is granulated and obtains ceramic powder；Ceramic powder is pressed into tablet with 100MPa isostatic cool pressings, after with the heating rate of 2 DEG C/min
1400 DEG C are risen to, heat preservation 2h obtains blue-green zirconia ceramics.
Embodiment 4
The composition of blue-green zirconia ceramics feedstock composition and the specific surface area of zirconia ceramics material of main part are shown in Table 1.
It is dried to obtain premix after blue-green zirconia ceramics feedstock composition is sufficiently mixed dispersion with ball milling；It will premix
Material is granulated and obtains ceramic powder；Ceramic powder is pressed into tablet with 100MPa isostatic cool pressings, after with the heating rate of 2 DEG C/min
1400 DEG C are risen to, heat preservation 2h obtains blue-green zirconia ceramics.
Embodiment 5
The composition of blue-green zirconia ceramics feedstock composition and the specific surface area of zirconia ceramics material of main part are shown in Table 1.
It is dried to obtain premix after blue-green zirconia ceramics feedstock composition is sufficiently mixed dispersion with ball milling；It will premix
Material is granulated and obtains ceramic powder；Ceramic powder is pressed into tablet with 100MPa isostatic cool pressings, after with the heating rate of 2 DEG C/min
1400 DEG C are risen to, heat preservation 2h obtains blue-green zirconia ceramics.
Embodiment 6
The composition of blue-green zirconia ceramics feedstock composition and the specific surface area of zirconia ceramics material of main part are shown in Table 1.
It is dried to obtain premix after blue-green zirconia ceramics feedstock composition is sufficiently mixed dispersion with ball milling；It will premix
Material is granulated and obtains ceramic powder；Ceramic powder is pressed into tablet with 100MPa isostatic cool pressings, after with the heating rate of 2 DEG C/min
1400 DEG C are risen to, heat preservation 2h obtains blue-green zirconia ceramics.
Embodiment 7
The composition of blue-green zirconia ceramics feedstock composition and the specific surface area of zirconia ceramics material of main part are shown in Table 1.
It is dried to obtain premix after blue-green zirconia ceramics feedstock composition is sufficiently mixed dispersion with ball milling；It will premix
Material is granulated and obtains ceramic powder；Ceramic powder is pressed into tablet with 100MPa isostatic cool pressings, after with the heating rate of 2 DEG C/min
1400 DEG C are risen to, heat preservation 2h obtains blue-green zirconia ceramics.
It is put into spectrophotometer after blue-green zirconia ceramics piece prepared by the Examples 1 to 7 of 0.5mm thickness is polished,
The visible light transmittance within the scope of its 550nm is measured, CIE (the international lighting committee members using D65 light sources are found out using color meter
Meeting) L*, a*, b* chromatic value, the results are shown in Table 1.Relative density is tested using drainage density tester, is drawn using universal material
Power machine tests four-point bending intensity, uses climatic chamber and XRD to test ageing properties (being evaluated with monoclinic phase content), uses
SENB methods test fracture toughness, test hardness using Vickers, the results are shown in Table 1.
Table 1
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (8)
1. a kind of blue-green zirconia ceramics feedstock composition, which is characterized in that including zirconia ceramics material of main part and addition
Agent, the additive include the first additive, Second addition；First additive is nickel oxide, the Second addition
Selected from least one of aluminium oxide and gallium oxide；In the blue-green zirconia ceramics feedstock composition, first addition
The mass percentage of agent is 0.01%~5%, and the mass percentage of the Second addition is 0.01%~15%.
2. blue-green zirconia ceramics feedstock composition according to claim 1, which is characterized in that the additive also wraps
Include third additive, the third additive in magnesia, calcium oxide, zinc oxide, barium monoxide and strontium oxide strontia at least one
Kind, the mass percentage of the third additive is 0.01%~5%.
3. blue-green zirconia ceramics feedstock composition according to claim 1, which is characterized in that the additive also wraps
Include yttrium oxide, the mass percentage of yttrium oxide described in the blue-green zirconia ceramics feedstock composition be 2.5%~
7.85%.
4. blue-green zirconia ceramics feedstock composition according to claim 2, which is characterized in that first additive
Mass percentage be 0.1%~1.5%, the mass percentage of the Second addition is 0.1%~6%, described the
The mass percentage of three additives is 0.1%~3.5%.
5. blue-green zirconia ceramics feedstock composition according to claim 1, which is characterized in that the blue-green oxidation
Zircon ceramic feedstock composition is that D50 is 0.05 μm~1.50 μm, specific surface area 8m2/ g~18m2The powder of/g.
6. the blue-green oxidation that Claims 1 to 5 any one of them blue-green zirconia ceramics feedstock composition is prepared
Zircon ceramic.
7. blue-green zirconia ceramics according to claim 6, which is characterized in that the blue-green zirconia ceramics conversion
At the light transmittance < 35% under the equivalent thickness of the 0.5mm after polishing, 550nm wavelength, SCI chromatic values are L >=50, -25≤a
≤-1、-20≤b≤5。
8. a kind of preparation method of blue-green zirconia ceramics, which is characterized in that include the following steps：
Claims 1 to 5 any one of them blue-green zirconia ceramics feedstock composition is uniformly mixed and obtains premix；It will
The premix molding and be sintered obtain blue-green zirconia ceramics.
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| CN110950657A (en) * | 2019-12-10 | 2020-04-03 | 江西赛瓷材料有限公司 | Sky blue zirconia ceramic and preparation method thereof |
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