CN108275996A - Shading composition, zirconia ceramics feedstock composition, zirconia ceramics and preparation method thereof - Google Patents
Shading composition, zirconia ceramics feedstock composition, zirconia ceramics and preparation method thereof Download PDFInfo
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Abstract
The present invention relates to a kind of shading compositions, zirconia ceramics feedstock composition, zirconia ceramics and preparation method thereof.A kind of shading composition, the color for adjusting zirconia ceramics, which is characterized in that including the first component, the second component and third component；First component is copper oxide, and second component is selected from least one of aluminium oxide, thulium oxide and neodymia；The third component is selected from least one of cerium oxide, zinc oxide, calcium oxide, cobalt oxide, magnesia, strontium oxide strontia, titanium oxide and praseodymium oxide, wherein the mass ratio of first component, second component and the third component is 0.001~5：0.001~20：0.001~20.Above-mentioned shading composition can apply in zirconia ceramics obtain the zirconia ceramics of sapphirine.
Description
Technical field
The present invention relates to a kind of shading compositions, zirconia ceramics feedstock composition, zirconia ceramics and preparation method thereof.
Background technology
China's making ceramics are with a history of thousands of years, are ceramics with silicate, aluminium oxide in the formula of ceramic raw material
Holder theoretical origin thousands of years, Chinese jade porcelain is gentle with color and luster, porcelain it is fine and smooth ceramic field create immortal mythology,
Legend and splendidness.
Chinese jade porcelain color and luster is gentle, porcelain is fine and smooth, but whiteness is relatively low, and translucency is also undesirable；Bone china whiteness height, light transmission
Property is good, but color and luster is more stiff, porcelain is rougher.Make a kind of collection Chinese jade porcelain color and luster is gentle, porcelain is fine and smooth and west bone
The height of grey porcelain is pure white, high light transmittance is in the porcelain of one, is pursuing a goal for ceramic industry.
The ceramics of sapphirine are favored because of the relatively color of jadeware, and existing beautiful porcelain color is partially black, from
And user's impression is poor.
Invention content
Based on this, it is necessary to provide a kind of toning for the zirconia ceramics can apply in zirconia ceramics obtain sapphirine
Composition, zirconia ceramics feedstock composition, zirconia ceramics and preparation method thereof.
A kind of shading composition, the color for adjusting zirconia ceramics, which is characterized in that including the first component, second
Component and third component；First component is copper oxide, and second component is in aluminium oxide, thulium oxide and neodymia
It is at least one；The third component is selected from cerium oxide, zinc oxide, calcium oxide, cobalt oxide, magnesia, strontium oxide strontia, titanium oxide and oxygen
Change at least one of praseodymium, wherein the mass ratio of first component, second component and the third component be 0.001~
5：0.001~20：0.001~20.
Above-mentioned shading composition can not be blacked by the compounding of the first component, the second component and third component
The zirconia ceramics of sapphirine, through measuring, obtained zirconia ceramics be converted into the 0.5mm after polishing equivalent thickness,
CIE Lab color shades indexs under 550nm wavelength are L >=60, -25≤a≤- 0.1, -18≤b≤15, light transmittance ＜ 45%,
The color and luster of zirconia ceramics is preferable.
A kind of zirconia ceramics feedstock composition, including zirconia ceramics material of main part and shading composition, the toning
Composition includes the first component, the second component and third component；The matter of first component in the zirconia ceramics feedstock composition
It is 0.001%~5% to measure percentage composition, and first component is copper oxide；Described in the zirconia ceramics feedstock composition
The mass percentage of second component is 0.001%~20%, and second component is in aluminium oxide, thulium oxide and neodymia
At least one；The mass percentage of third component described in the zirconia ceramics feedstock composition be 0.001%~
20%, the third component is selected from cerium oxide, zinc oxide, calcium oxide, cobalt oxide, magnesia, strontium oxide strontia, titanium oxide and praseodymium oxide
At least one of.
The quality percentage of the first component described in the zirconia ceramics feedstock composition contains in one of the embodiments,
Amount is 0.005%~1%；And/or
The mass percentage of second component described in the zirconia ceramics feedstock composition is 0.1%~15%；And/
Or
The mass percentage of third component described in the zirconia ceramics feedstock composition is 0.01%~15%.
The zirconia ceramics material of main part includes zirconium oxide and hafnium oxide in one of the embodiments,.
The zirconia ceramics material of main part includes zirconium oxide and yttrium oxide, the oxidation in one of the embodiments,
The mass percentage of yttrium oxide described in zircon ceramic feedstock composition is 2.5%~7.85%.
The mass percentage of yttrium oxide described in the zirconia ceramics feedstock composition in one of the embodiments,
It is 3%~6.3%.
It is 0.05 μm~1.50 μm that the zirconia ceramics feedstock composition, which is D50, in one of the embodiments, compares table
Area is 6m2/ g~25m2The powder of/g.
The zirconia ceramics that above-mentioned zirconia ceramics feedstock composition is prepared.
The zirconia ceramics is converted into the equivalent thickness of the 0.5mm after polishing, 550nm in one of the embodiments,
Light transmittance ＜ 45% under wavelength, chromatic value L >=60, -25≤a≤- 0.1, -18≤b≤15.
Above-mentioned zirconia ceramics feedstock composition is molded and is sintered to obtain oxygen by a kind of preparation method of zirconia ceramics
Change zircon ceramic.
Specific implementation mode
Below in conjunction with specific implementation mode to shading composition, zirconia ceramics feedstock composition, zirconia ceramics and
Preparation method is further described in detail.
The zirconia ceramics feedstock composition of one embodiment, including zirconia ceramics material of main part and shading composition.
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.
In some embodiments, zirconia ceramics material of main part further includes yttrium oxide.Zirconia ceramics feedstock composition
The mass percentage of middle yttrium oxide is 2.5%~7.85%, preferably 3%~6.3%.Yttrium oxide is added, oxygen can be improved
Change the intensity of zircon ceramic.
Certainly, in order to further enhance the performance of zirconia ceramics, the component of other modifications can also be added, is differed herein
One repeats.
Shading composition includes the first component, the second component and third component.Shading composition can adjust zirconia ceramics
Tone, the color and luster of sapphirine is presented.The mass ratio of first component, the second component and third component is 0.001~5：0.001~
20：0.001~20.
First component is copper oxide.Copper oxide is capable of providing the dominant hue of sapphirine.In zirconia ceramics feedstock composition
The mass percentage of first component is 0.001%~5%, further preferably 0.005%~1%.
Second component is selected from least one of aluminium oxide, thulium oxide and neodymia.Aluminium oxide can provide the master of sapphirine
Tone.Thulium oxide and neodymia can adjust tone, specifically, can adjust a values and b values of tone.Zirconia ceramics raw material
The mass percentage of the second component is 0.001%~20%, further preferably 0.1%~15% in composition.
Third component is selected from cerium oxide, zinc oxide, calcium oxide, cobalt oxide, magnesia, strontium oxide strontia, titanium oxide and praseodymium oxide
At least one of.Zinc oxide and magnesia can adjust the brightness of zirconia ceramics, specifically, exactly adjust the L values of tone.Oxidation
Cerium, calcium oxide, cobalt oxide, strontium oxide strontia, titanium oxide and praseodymium oxide can adjust tone, specifically, can adjust tone a values and
B values.The mass percentage of third component is 0.001%~20%, preferably 0.01% in zirconia ceramics feedstock composition
~15%.
It is 0.05 μm~1.50 μm that zirconia ceramics feedstock composition, which is D50, in one of the embodiments, specific surface area
For 6m2/ g~25m2The powder of/g.
It should be noted that in above-mentioned zirconia ceramics feedstock composition, by adjusting the content of zirconium oxide so that all
The gross mass percentage composition of component meets 100%.
In some embodiments, iron oxide is not contained in zirconia ceramics feedstock composition.Zirconia ceramics material combination
Object is avoided that iron oxide brings other tones, ensures that the zirconia ceramics prepared is sapphirine.
In some embodiments, cobalt oxide is not contained in zirconia ceramics feedstock composition.Zirconia ceramics raw material group
It closes object and is avoided that cobalt oxide brings other tones, ensure that the zirconia ceramics prepared is sapphirine.
In some embodiments, silica is free of in zirconia ceramics feedstock composition.Silica can reduce oxidation
The intensity of zircon ceramic, the four-point bending intensity of zirconia ceramics prepared by the zirconia ceramics feedstock composition without silica
It is higher.
It, can by the compounding of the first component, the second component and third component in above-mentioned zirconia ceramics feedstock composition
The zirconia ceramics for the sapphirine not blacked, through measuring, obtained zirconia ceramics is converted into the 0.5mm after polishing
Equivalent thickness, the CIE Lab color shades indexs under 550nm wavelength be L >=60, -25≤a≤- 0.1, -18≤b≤15, thoroughly
The color and luster of luminosity ＜ 45%, zirconia ceramics are preferable；The zirconia ceramics that above-mentioned zirconia ceramics composition is prepared it is strong
Degree is preferable.
The zirconia ceramics of one embodiment is prepared by above-mentioned zirconia ceramics feedstock composition.
Zirconia ceramics is converted into the equivalent thickness of the 0.5mm after polishing, 550nm wavelength in one of the embodiments,
Under light transmittance ＜ 45%, chromatic value L >=60, -25≤a≤- 0.1, -18≤b≤15.
Above-mentioned zirconia ceramics is the zirconia ceramics for the sapphirine not blacked, and through measuring, obtained zirconium oxide is made pottery
Porcelain is converted into the equivalent thickness of 0.5mm after polishing, the CIE Lab color shades indexs under 550nm wavelength be L >=60, -25≤
The color and luster of a≤- 0.1, -18≤b≤15, light transmittance ＜ 45%, zirconia ceramics is preferable；The intensity of above-mentioned zirconia ceramics compared with
It is good.
The preparation method of above-mentioned zirconia ceramics, includes the following steps：
Step S110, zirconia ceramics feedstock composition is provided.
Zirconia ceramics feedstock composition is by by zirconia ceramics material of main part and toning in one of the embodiments,
Each raw material grinding of composition is sufficiently mixed to obtain.Further, grinding can be sand milling, ball milling.Further, ball milling is
Wet ball grinding or dry ball milling.
Shading composition by the corresponding salting liquid of each raw material by mixing progress with aqueous slkali in one of the embodiments,
Precipitation reaction is precipitated and calcines to obtain.Ceramic zirconium oxide ceramic body material and shading composition grinding are sufficiently mixed
Obtain zirconia ceramics feedstock composition.Further, aqueous slkali is sodium hydroxide solution.Salting liquid is chloride solution or nitre
At least one of acid salt solution, the corresponding meaning is that the corresponding salting liquid of copper oxide is copper chloride solution or copper nitrate herein
Solution.Further, grinding can be sand milling, ball milling.Further ball milling is wet ball grinding or dry ball milling.
Step S120, zirconia ceramics feedstock composition is molded and is sintered to obtain zirconia ceramics.
Zirconia ceramics feedstock composition is granulated in one of the embodiments, to obtain ceramic powder, isostatic cool pressing pressure
Type is made, sintering later obtains zirconia ceramics.Further, the pressure of isostatic cool pressing compression moulding is 100MPa.Further
, the technological parameter of sintering is：1360 DEG C are risen to the heating rate of 2 DEG C/min, heat preservation 1.5h is sintered.
In one of the embodiments, by zirconia ceramics feedstock composition and acrylic resin, stearic acid and paraffin
It is mixed to get premix, is injection moulded after premix is kneaded and obtains biscuit, biscuit is subjected to dumping later and sintering obtains oxygen
Change zircon ceramic.Preferably, in premix, the mass percentage of acrylic resin is 6%, and stearic mass percentage is
1.5%, paraffin is common paraffin, and the mass percentage of paraffin is 7%.Preferably, the technological parameter of mixing is：At 170 DEG C
It is kneaded 3 hours.Preferably, the technological parameter of dumping is：200 DEG C, 0.4 DEG C/min are risen to the heating rate of 0.1 DEG C/min
Heating rate rises to 400 DEG C by 200 DEG C, 400 DEG C of heat preservations, 2 hours dumpings.Preferably, the technological parameter of sintering is：With 2 DEG C/min
It rises to 1360 DEG C and keeps the temperature 1.5 hours.
Zirconia ceramics feedstock composition is mixed with PVB solution and solvent in one of the embodiments, be sanded or
Person's ball milling obtains ceramic slurry after being sufficiently mixed dispersion, and by ceramic slurry tape casting, dumping is simultaneously sintered and obtains zirconia ceramics.
Preferably, the mass ratio of PVB and zirconia ceramics feedstock composition is 6 in PVB solution：100.Preferably, solvent is that toluene is different
Propyl alcohol.Preferably, the technological parameter of dumping is：280 DEG C of heat preservations, 2 hours dumpings are risen to the heating rate of 0.3 DEG C/min.It is preferred that
, the technological parameter of sintering is：1450 DEG C are risen to 2 DEG C/min rates, keeps the temperature 1.5 hours.
Above-mentioned several embodiments, the merely illustrative several preparation methods for listing zirconia ceramics, need to illustrate
, zirconia ceramics is not limited to use above-mentioned preparation method, other preparation methods in the industry may be used and prepare, as long as control original
Material is the zirconia ceramics that zirconia ceramics feedstock composition can be obtained the sapphirine not blacked.
The preparation method of above-mentioned zirconia ceramics, easy to operate, the zirconia ceramics being prepared is the sapphire not blacked
The zirconia ceramics of color.
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.
Embodiment 1
Take 98.999 parts of zirconia ceramics material of main parts (containing 2.5% Y2O3, specific surface area 18m2/ g), it is added
0.001 part of CuO, 0.34 part of Al2O3, 0.01 part of CoO, 0.12 part of CeO2,0.43 part of MgO, it is dry after being sufficiently mixed dispersion with ball milling
Zirconia ceramics feedstock composition, granulation obtain master batch.Be pressed into tablet with 100MPa isostatic cool pressings, after with the liter of 2 DEG C/min
Warm rate rises to 1360 DEG C, and heat preservation 1.5h obtains zirconia ceramics.
Embodiment 2
Take 92.95 parts of zirconia ceramics material of main part (Y containing 7.85% mass fraction2O3, specific surface area 12m2/
G), 5.0 parts of CuO, 0.48 part of Al is added2O3, 0.96 part of Nd2O3, 0.66 part of CaO wet ball grindings dispersion, be dried to obtain zirconium oxide pottery
Porcelain feedstock composition.Zirconia ceramics feedstock composition is kneaded 3 with acrylic resin, stearic acid and common paraffin at 170 DEG C
Hour obtains pre-composition, and the content of acrylic resin is 6% in pre-composition, and stearic content is 1.5%, and common paraffin contains
Amount is 7%.Pre-composition is injection moulded.With 0.1 DEG C/min heating rates rise to 200 DEG C, 0.4 DEG C/min rise to 400 by 200 DEG C
DEG C, 400 DEG C of heat preservations, 2 hours dumpings, then 1360 DEG C of heat preservations are risen to 2 DEG C/min and obtain zirconia ceramics within 1.5 hours.
Embodiment 3
To containing Cu (NO3)2、Al(NO3)3、Nd(NO3)3、Sr(NO3)2、CeCl3Mixed solution in be added dropwise while stirring
The NaOH solution that mass percentage is 18% obtains precipitation mixture, and 0.94%Cu (NO are contained wherein in solution3)2, 4%
Al(NO3)3, 2.36% Nd (NO3)3, 3.4% Sr (NO3)2, 0.43% CeCl3, solution PH is adjusted to 12, and precipitation is mixed
It closes object washing and drying and calcines to obtain shading composition within 1.5 hours at 900 DEG C.98.305 parts of zirconia ceramics material of main parts are taken (to contain
There is the Y of 3.0% mass fraction2O3, specific surface area 12m2/ g) 1.89 parts of shading compositions are added, it is sufficiently mixed dispersion with sand milling
After obtain zirconia ceramics feedstock composition, drying-granulating obtains master batch.Be pressed into tablet with 100MPa isostatic cool pressings, after with 2
DEG C/heating rate of min rises to 1450 DEG C, heat preservation 1.5h obtains zirconia ceramics.
Embodiment 4
To containing 2.82%Cu (NO3)2, 4%Al (NO3)3, 2.36%Nd (NO3)3, 3.4%Mg (NO3)2, 0.43%
CeCl3Mixed solution in the NaOH solution that excessive NaOH solution mass percentage is 18% be added dropwise while stirring precipitated
Mixture contains 2.82% Cu (NO wherein in solution3)2, 4% Al (NO3)3, 2.36% Nd (NO3)3, 3.4% Mg
(NO3)2, 0.43% CeCl3, solution PH is adjusted to 12, and precipitation mixture washing and drying is calcined for 1.5 hours at 900 DEG C
Shading composition.Take 97.77 parts of zirconia ceramics material of main part (Y containing 3.42% mass fraction2O3, specific surface area is
12m2/ g) 2.23 parts of shading compositions are added, wet ball grinding dispersion is dry into zirconia ceramics feedstock composition is obtained, and adds
Adding PVB solution solvent in advance, (PVB is 6 with powder quality ratio：And toluene isopropanol (toluene isopropanol and powder quality 100)
Than being 3:2) it, is sufficiently mixed with ball milling after disperseing and obtains the ceramic slurry containing zirconia ceramics feedstock composition, tape casting,
280 DEG C of heat preservations, 2 hours dumpings are risen to the heating rate of 0.3 DEG C/min, rise to 1450 DEG C with 2 DEG C/min rates, heat preservation 1.5 is small
When obtain zirconia ceramics.
Embodiment 5
Take 97.77 parts of zirconia ceramics material of main part (Y containing 3.42% mass fraction2O3, specific surface area 7m2/ g),
0.6 part of CuO, 0.48 part of Al is added2O3, 0.6 part of Nd2O3, 0.46 part of MgO, 0.21 part of TiO2, it is sufficiently mixed with sand milling or ball milling
Dry zirconia ceramics feedstock composition, granulation obtain master batch after dispersion.Be pressed into tablet with 100MPa isostatic cool pressings, after with 2
DEG C/heating rate of min rises to 1480 DEG C, heat preservation 2h obtains zirconia ceramics.
Embodiment 6
To containing 2.82%Cu (NO3)2, 4%Al (NO3)3, 2.36%Nd (NO3)3, 3.4%Mg (NO3)2, 0.43%
Tm2O3Mixed solution in the NaOH solution that excessive NaOH solution mass percentage is 18% be added dropwise while stirring precipitated
Mixture contains 2.82% Cu (NO wherein in solution3)2, 4% Al (NO3)3, 2.36% Nd (NO3)3, 3.4% Mg
(NO3)2, 0.43% Tm2O3, solution PH is adjusted to 12, and precipitation mixture washing and drying is calcined for 1.5 hours at 900 DEG C
Shading composition.Take 97.77 parts of zirconia ceramics material of main part (Y containing 3.42% mass fraction2O3, specific surface area is
12m2/ g) 2.23 parts of shading compositions are added, wet ball grinding dispersion is dry into zirconia ceramics feedstock composition is obtained, and adds
Adding PVB solution solvent in advance, (PVB is 6 with powder quality ratio：And toluene isopropanol (toluene isopropanol and powder quality 100)
Than being 3:2) it, is sufficiently mixed with ball milling after disperseing and obtains the ceramic slurry containing zirconia ceramics feedstock composition, tape casting,
280 DEG C of heat preservations, 2 hours dumpings are risen to the heating rate of 0.3 DEG C/min, rise to 1450 DEG C with 2 DEG C/min rates, heat preservation 1.5 is small
When obtain zirconia ceramics.
Embodiment 7
Take 97.17 parts of zirconia ceramics material of main part (Y containing 6.17% mass fraction2O3, specific surface area 9m2/ g),
0.8 part of CuO, 1.3 parts of Al are added2O3, 0.63 part of ZnO, 0.1 part of Pr2O3Wet ball grinding disperses, and is dried to obtain zirconia ceramics original
Feed composition.Zirconia ceramics feedstock composition is kneaded 3 hours with acrylic resin, stearic acid and common paraffin at 170 DEG C
Obtain pre-composition, the content of acrylic resin is 6% in pre-composition, and stearic content is 1.5%, and the content of common paraffin is
7%.Pre-composition is injection moulded.With 0.1 DEG C/min heating rates rise to 200 DEG C, 0.4 DEG C/min rise to 400 DEG C by 200 DEG C,
400 DEG C of heat preservations, 2 hours dumpings, then 1480 DEG C of heat preservations are risen to 2 DEG C/min and obtain zirconia ceramics within 2 hours.
Embodiment 8
Take 97.33 parts of zirconia ceramics material of main part (Y containing 5.23% mass fraction2O3, specific surface area 7m2/ g),
1 part of CuO, 0.94 part of Al is added2O3, 0.63 part of CaO, 0.1 part of Pr2O3, dry oxygen after being sufficiently mixed dispersion with sand milling or ball milling
Change zircon ceramic feedstock composition, granulation obtains master batch.Be pressed into tablet with 100MPa isostatic cool pressings, after with the heating of 2 DEG C/min
Rate rises to 1480 DEG C, and heat preservation 2h obtains zirconia ceramics.
Comparative example
Take 96.6 parts of zirconia ceramics material of main part (Y containing 4.5% mass fraction2O3, specific surface area 12m2/ g),
0.2 part of SiO is added2, 0.3 part of Fe2O3, 0.2 part of Al2O3, 1 part of CoO, 0.7 part of CeO, 0.1 part of Pr2O3, filled with sand milling or ball milling
Dry zirconia ceramics feedstock composition, granulation obtain master batch after dividing mixing to disperse.It is pressed into tablet with 100MPa isostatic cool pressings,
1480 DEG C are risen to the heating rate of 2 DEG C/min afterwards, heat preservation 2h obtains zirconia ceramics.
The ingredient of the zirconia ceramics of Examples 1 to 8 preparation is tested, ingredient is tested using XRF, with oxidation
The mass percentage expression of object benchmark the results are shown in Table 1.After zirconia ceramics piece polishing prepared by the Examples 1 to 9 of 0.5mm
It is put into spectrophotometer, measures the visible light transmittance within the scope of its 550nm, found out using color meter and utilize D65 light sources
L*, a*, b* chromatic value of CIE (International Commission on Illumination), the results are shown in Table 2.It is tested using drainage density tester relatively close
Degree, four-point bending intensity is tested using universal material puller system, ageing properties is tested using climatic chamber and XRD, using dimension
Family name's hardometer tests hardness, the results are shown in Table 2.
Table 1
Table 2
From table 2 it can be seen that compared to comparative example, not only color is closer beautiful for zirconia ceramics prepared by Examples 1 to 8
Color does not black, and four-point bending intensity is more apparent than comparative example to improve a lot, and hardness is also above comparative example.
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 (9)
1. a kind of shading composition, the color for adjusting zirconia ceramics, which is characterized in that including the first component, second group
Part and third component；First component be copper oxide, second component in aluminium oxide, thulium oxide and neodymia extremely
Few one kind；The third component is selected from cerium oxide, zinc oxide, calcium oxide, cobalt oxide, magnesia, strontium oxide strontia, titanium oxide and oxidation
At least one of praseodymium, wherein the mass ratio of first component, second component and the third component is 0.001~5：
0.001~20：0.001~20.
2. a kind of zirconia ceramics feedstock composition, which is characterized in that including zirconia ceramics material of main part and shading composition,
The shading composition includes the first component, the second component and third component；First in the zirconia ceramics feedstock composition
The mass percentage of component is 0.001%~5%, and first component is copper oxide；The zirconia ceramics material combination
The mass percentage of second component described in object be 0.001%~20%, second component be selected from aluminium oxide, thulium oxide and
At least one of neodymia；The mass percentage of third component described in the zirconia ceramics feedstock composition is
0.001%~20%, the third component is selected from cerium oxide, zinc oxide, calcium oxide, cobalt oxide, magnesia, strontium oxide strontia, oxidation
At least one of titanium and praseodymium oxide.
3. zirconia ceramics feedstock composition according to claim 2, which is characterized in that the zirconia ceramics raw material group
The mass percentage for closing the first component described in object is 0.005%~1%；And/or
The mass percentage of second component described in the zirconia ceramics feedstock composition is 0.1%~15%；And/or
The mass percentage of third component described in the zirconia ceramics feedstock composition is 0.01%~15%.
4. zirconia ceramics feedstock composition according to claim 2, which is characterized in that the zirconia ceramics main body material
Material includes zirconium oxide and yttrium oxide containing hafnium oxide, the quality hundred of yttrium oxide described in the zirconia ceramics feedstock composition
It is 2.5%~7.85% to divide content.
5. zirconia ceramics feedstock composition according to claim 4, which is characterized in that the zirconia ceramics raw material group
The mass percentage for closing yttrium oxide described in object is 3%~6.3%.
6. zirconia ceramics feedstock composition according to claim 2, which is characterized in that the zirconia ceramics raw material group
It is 0.05 μm~1.50 μm that conjunction object, which is D50, specific surface area 6m2/ g~25m2The powder of/g.
7. the zirconia ceramics that claim 2~6 any one of them zirconia ceramics feedstock composition is prepared.
8. zirconia ceramics according to claim 7, which is characterized in that after the zirconia ceramics is converted into polishing
Light transmittance ＜ 45% under the equivalent thickness of 0.5mm, 550nm wavelength, chromatic value L >=60, -25≤a≤- 0.1, -18≤b≤
15。
9. a kind of preparation method of zirconia ceramics, which is characterized in that claim 2~6 any one of them zirconium oxide is made pottery
Porcelain feedstock composition is molded and is sintered to obtain zirconia ceramics.
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