CN107162586A - A kind of zirconium oxide tooth-implanting base station preparation method - Google Patents

A kind of zirconium oxide tooth-implanting base station preparation method Download PDF

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Publication number
CN107162586A
CN107162586A CN201710335784.7A CN201710335784A CN107162586A CN 107162586 A CN107162586 A CN 107162586A CN 201710335784 A CN201710335784 A CN 201710335784A CN 107162586 A CN107162586 A CN 107162586A
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China
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base station
microwave
tooth
sintering
zirconium oxide
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Inventor
陈利祥
陈欣言
许申鸿
葛晓辉
姜学军
石星军
马军艳
周旭波
李显辉
杜晓红
徐韶鸿
武青
刘华堂
孙光辉
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Qingdao University
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Qingdao University
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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
    • C04B35/48—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 zirconium or hafnium oxides, zirconates, zircon or hafnates
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/02—Inorganic materials
    • A61L27/10—Ceramics or glasses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
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    • C04B35/622—Forming processes; 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
    • C04B35/64—Burning or sintering processes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
    • F27B9/062—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated electrically heated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/16—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a circular or arcuate path
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/36—Arrangements of heating devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0006—Electric heating elements or system
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2430/00—Materials or treatment for tissue regeneration
    • A61L2430/12—Materials or treatment for tissue regeneration for dental implants or prostheses
    • C—CHEMISTRY; METALLURGY
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/602—Making the green bodies or pre-forms by moulding
    • C04B2235/6023—Gel casting
    • C—CHEMISTRY; METALLURGY
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/66—Specific sintering techniques, e.g. centrifugal sintering
    • C04B2235/666—Applying a current during sintering, e.g. plasma sintering [SPS], electrical resistance heating or pulse electric current sintering [PECS]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
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    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0006—Electric heating elements or system
    • F27D2099/0028—Microwave heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2001/00—Composition, conformation or state of the charge
    • F27M2001/15—Composition, conformation or state of the charge characterised by the form of the articles
    • F27M2001/1504—Ceramic articles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2003/00—Type of treatment of the charge
    • F27M2003/04—Sintering

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Abstract

The invention belongs to new material tooth-implanting base station preparing technical field, it is related to a kind of zirconium oxide tooth-implanting base station preparation method, technical process is prepared including slurry, blank forming and microwave sintering totally three steps, CAD/CAM is utilized by transformation toughening using nano-scale chemical pure zirconia, cold conditions isostatic pressing method and microwave sintering process processing and fabricating precision highest and work difference minimum all-ceramic prosthesis and tooth-implanting base station, meet tooth biological requirement and close to natural teeth mechanical strength, sintering only needs surface polishing to can be used after finishing, it is high with intensity, wearability is good, polishability is preferable, coefficient of friction is small, the characteristics of good stability of the dimension and good self-lubricating property, simultaneously, improve the biocompatibility of base station and dummy, rupture strength, fracture toughness, translucency, marginal and aesthetic effect, shorten clinical repair treatment time, reduce medical expense, reach the top standard of international similar technique, at home, outer popularization and application, bring benefit to the mankind.

Description

A kind of zirconium oxide tooth-implanting base station preparation method
Technical field：
The invention belongs to new material tooth-implanting base station preparing technical field, it is related to a kind of zirconium oxide tooth-implanting base station preparation side Method, prepares the zirconium oxide tooth-implanting base station with high reliability, intensity and toughness and low cost, with the kind of alternative metals material Plant tooth base station.
Background technology：
Defect of dentition, missing are department of stomatology common disease frequently-occurring diseases, and restorative procedure mainly has removable denture, fixed denture and tooth Plantation；The development of Dental implantion had both indicated the progress of dentistry, also reflects the hair of the subjects such as biology, chemistry and materialogy Exhibition, is the crystallization that related discipline is interpenetrated, merged；The generation and development of Dental implantion represent people to stomatological aesthetics and function The pursuit of recovery；From 1960s so far, various implant systems used in modern Dental implantion are that Titanium is made, by Aesthetic effect is influenceed in the opaqueness of metal base station；A kind of novel high-stability that Chinese patent 201610641885.2 is announced Property tooth-implanting base station include artificial tooth connecting portion, middle interconnecting piece, lower end connecting portion, artificial tooth connecting portion, middle interconnecting piece, lower end connect Socket part is that in the vertical direction is sequentially distributed from top to bottom, and being provided with artificial tooth connecting portion is used for the through hole that screw is inserted, and through hole is indulged To through middle interconnecting piece and extending in the connecting portion of lower end, the diameter of through hole successively decreases successively from top to bottom, artificial tooth connecting portion Peripheral distribution has the annular projection being adapted to artificial tooth inner surface configuration, and artificial tooth connecting portion is in elongated cylinder structure, annular projection Provided with spring, the connection end of middle interconnecting piece and lower end connecting portion is in circular arc channel-shaped, passes through the outer surface in artificial tooth connecting portion Set and spring is set in annular projection, annular projection, there is certain elastic deformation power built with the annular projection of spring；China A kind of production technology of personalized tooth-implanting base station is comprised the following steps that disclosed in patent 201510431315.6：A, pass through The outer scanner of mouth carries out imitating the position lock of the planting body in implantation sufferer dentale in three-dimensional data scanning, plaster mold to plaster mold Upper scan shaft, or, three-dimensional data scanning is carried out to sufferer oral cavity by intraoral scanner, planting body locks scan shaft, b, mouth Outer scanner or intraoral scanner transmit three-dimensional data to computer, and computer carries out data pair, and c, computer are according to matching somebody with somebody Carry out denture designing automatic to result, d, computer are by designed artificial tooth data transfer to 3D printer or grinder, 3D Printer completes artificial tooth 3D printing, and grinder completes the justice after artificial tooth grinding, e, the artificial tooth of 3D printing shaping or milled processed Tooth can coordinate with the planting body in implantation sufferer dentale；Chinese patent 201310733686.0 discloses a kind of tooth-implanting base The preparation method of platform, tooth-implanting and tooth-implanting base station, tooth-implanting base station includes being coated with silver ion on base station body, base station body Layer, tooth-implanting is that planting body is installed on base station body, and the preparation method of tooth-implanting base station is as follows：Prepare AgNO3Weak solution, Na3C6H5O6Weak solution and NaBH4Weak solution is standby, by AgNO3Solution, Na3C6H5O6Solution and water are mixed in ice-water bath, plus Appropriate amount of deionized water, adds NaBH under agitation4Solution, continues to stir to uniform colloidal sol is obtained, by the plantation after silanization 0.8-1.2 hours in the colloidal sol that the immersion of tooth base station makes, take out, clean up, produce；Recently, research is found, tooth-implanting base station In metal material can permeate gradually and stimulate body produce immune response, show as blood lymphocyte and increase, positioned at oral cavity (jaw Outside bone) metal can also on magnetic resonance, CT examination produce influence (artifact).Therefore, a kind of zirconium oxide tooth-implanting base of R ＆ D design Platform preparation method, tooth-implanting base station is prepared using zirconium oxide alternative metals, can both avoid harmful effect of the metal material to body The aesthetic orthopaedics effect of Dental implantion can be improved again, and the All-ceramic material of zirconium oxide will not also cause allergy and abnormal new old generation Thank, it is also without hindrance to x-ray to penetrate, it is adapted to the tooth structure of compatriots.
The content of the invention：
It is an object of the invention to overcome the shortcoming that prior art is present, seek to design a kind of zirconium oxide tooth-implanting base station system Preparation Method, tooth-implanting base station is prepared using zirconium oxide alternative metals, on the premise of metal material is avoided to body harmful effect, Production cost is reduced, the aesthetic orthopaedics effect of Dental implantion is improved.
To achieve these goals, the technical process of zirconium oxide tooth-implanting base station preparation method of the present invention includes slurry Expect preparation, blank forming and microwave sintering totally three steps：
(1), prepared by slurry：By acrylamide monomer and N, N ' methylene-bisacrylamides are mixed according to 17: 1 mass ratio Conjunction prepares mixture, then mixture and water are mixed with according to 18: 85 mass ratio obtain pre-mixing liquor, in pre-mixing liquor Add the dispersant of 0.5% mass fraction, purity and be more than 99% and powdery 3Y-TZP of the granularity less than 20nm, being configured to pH value is 9.5 and solid volume fraction be more than 55% suspended substance, suspended substance obtains viscosity and is less than after being mixed 10 hours through ball mill 200mPa.S aqueous systems ceramic slurry, mass percent of the mixture in aqueous systems ceramic slurry is 3%, completes slurry Prepare；
(2), blank forming：Slurry is carried out after application of vacuum using Gelcasting Technique, added in the slurry 1% mass percent initiator and 0.5% percent by volume catalyst formation mixture, by mixture at the uniform velocity be poured into mould Middle carry out gelation, is then stripped and is dried, and completes the shaping of base substrate；
(3), microwave sintering：Base substrate is put into the microwave sintering chamber of microwave sintering device, it is bent according to the heating of setting Line, microwave sintering is carried out to base substrate.
Dispersant of the present invention is the ammonium polymethacrylate solution that mass percent concentration is 5%；Initiator is Mass percent concentration is 5% ammonium persulfate aqueous solution；Catalyst is the tetramethylethylenediamine that mass percent concentration is 5% The aqueous solution.
Yttria levels in zirconium oxide tooth-implanting base station prepared by the present invention are 3%mol, zirconium oxide tooth-implanting base station Density is 6.05 gram per centimeters3, hardness is 12.22GPa, and bending strength is 936.32MPa, and fracture toughness is 12.56Mpam1/2。
The agent structure of microwave sintering device of the present invention include magnetron, microwave power supply, circulator, water load, Four tuners, heating chamber, load, antenna array, swinging mounting and pallet；It is provided with the microwave power supply and circulator of magnetron Left end duct type is connected, and the lower end of circulator is provided with the left end duct type of water load, the right-hand member of circulator and four tuners Connection, the right-hand member of four tuners is connected with the heating chamber duct type right angle of hollow type rectangular configuration, is provided with load heating chamber Top be provided with antenna array, the bottom of heating chamber is provided with swinging mounting, and the top of swinging mounting is provided with circular plate-like shape knot The pallet of structure；The microwave frequency of magnetron is 2.45GHZ；The peak power output of microwave power supply is 5KW；Circulator is used for The back wave of load is sent into water load, it is returned to magnetron, to protect magnetron；Water load is used to absorb circulator The back wave of feeding；The back wave that four tuners are used to control heating chamber to make load is minimum；The material of heating chamber is stainless steel； Antenna array is used for converging microwave and microwave is smoothly entered heating chamber；Swinging mounting is used to rotate and support pallet, pallet is existed Moved in a circle under the drive of swinging mounting；Pallet is used to carry the article being sintered.
Gelcasting Technique of the present invention, is suitable for large-scale production, it is possible to increase yield rate and finished product can By property, manufacturing cost is significantly reduced, the aggregate of ceramic powder particle is eliminated, the change of complicated form part in sintering process is reduced Shape and cracking, reduce the amount of machining of final products, obtain the ceramic material and part of high reliability；The green density of preparation and Intensity is high, uniformity is good, and appearance and size is not fixed；Microwave sintering device is by microwave energy by converging day line traffic control in certain space In the range of, increase heated perimeter and energy will be uniformly distributed, realize ceramic material serialization microwave sintering, and can be burnt with conventional Tie equipment to be used in combination, microwave sintering combination normal sintering can make up the warming temperature gradient that normal sintering leans on heat transfer to heat Greatly, material is heated uneven, heat time length and the big shortcoming of power consumption, while avoid ceramic material absorbs microwave in low temperature Can be poor the problem of.
The present invention compared with prior art, uses nano-scale chemical pure zirconia to make Dental implantion base station for raw material, leads to Peroxidating zirconium transformation toughening makes the rupture strength of base station reach 1200Mpa, and fracture toughness reaches 10Mpa*m1/2More than, use CAD/ CAM, cold conditions isostatic pressing method and microwave sintering process processing and fabricating precision highest and the minimum all-ceramic prosthesis of work difference and Tooth-implanting base station, meets tooth biological requirement and close to natural teeth mechanical strength, sintering only needs surface polishing i.e. after finishing It can be used, it is to avoid the attrition process process after sintering, with intensity is high, wearability is good, preferably, coefficient of friction is small for polishability, The characteristics of good stability of the dimension and good self-lubricating property, meanwhile, biocompatibility, the anti-folding for improving base station and dummy are strong Degree, fracture toughness, translucency, marginal and aesthetic effect, shorten clinical repair treatment time, reduce medical expense, reach To the top standard of international similar technique, at home, outer popularization and application, bring benefit to the mankind.
Brief description of the drawings：
Fig. 1 is process flow diagram of the invention.
Fig. 2 is the agent structure principle schematic of microwave sintering device of the present invention.
Fig. 3 is the agent structure schematic diagram of zirconium oxide tooth-implanting base station of the present invention.
Fig. 4 is the cross-sectional view of zirconium oxide tooth-implanting base station of the present invention.
Fig. 5 is the present invention looks up structural representation of zirconium oxide tooth-implanting base station of the present invention.
Embodiment：
Below by embodiment and the invention will be further described with reference to accompanying drawing.
Embodiment 1：
The technical process of zirconium oxide tooth-implanting base station preparation method manufactured in the present embodiment includes slurry preparation, blank forming With microwave sintering totally three steps：
(1), prepared by slurry：By acrylamide monomer and N, N ' methylene-bisacrylamides are mixed according to 17: 1 mass ratio Conjunction prepares mixture, then by mixture and water according to 18：85 mass ratio, which is mixed with, obtains pre-mixing liquor, in pre-mixing liquor Add the dispersant of 0.5% mass fraction, purity and be more than 99% and powdery 3Y-TZP of the granularity less than 20nm, being configured to pH value is 9.5 and solid volume fraction be more than 55% suspended substance, suspended substance obtains viscosity and is less than after being crushed 10 hours through ball mill 200mPa.S aqueous systems ceramic slurry, mass percent of the mixture in aqueous systems ceramic slurry is 3%, completes slurry Prepare；
(2), blank forming：Slurry is carried out after application of vacuum using Gelcasting Technique, added in the slurry 1% mass percent initiator and 0.5% percent by volume catalyst formation mixture, by mixture at the uniform velocity be poured into mould Middle carry out gelation, is then stripped and is dried, and completes the shaping of base substrate；
(3), microwave sintering：Base substrate is put into the microwave sintering chamber of microwave sintering device, it is bent according to the heating of setting Line, microwave sintering is carried out to base substrate.
The dispersant that the present embodiment is related to is the ammonium polymethacrylate solution (PMAA- that mass percent concentration is 5% NH4)；Initiator is the ammonium persulfate aqueous solution that mass percent concentration is 5%；Catalyst is that mass percent concentration is 5% The tetramethylethylenediamine aqueous solution.
Yttria levels in zirconium oxide tooth-implanting base station manufactured in the present embodiment are 3%mol, zirconium oxide tooth-implanting base station Density be 6.05 gram per centimeters3, hardness is 12.22GPa, and bending strength is 936.32MPa, and fracture toughness is 12.56Mpam1 /2。
The agent structure for the microwave sintering device that the present embodiment is related to includes magnetron 1, microwave power supply 2, circulator 3, water Load 4, four tuners 5, heating chamber 6, load 7, antenna array 8, swinging mounting 9 and pallet 10；It is provided with the microwave of magnetron 1 Power supply 2 is connected with the left end duct type of circulator 3, and the lower end of circulator 3 is provided with water load 4, the right-hand member of circulator 3 and four The left end duct type connection of tuner 5, the right-hand member of four tuners 5 and the duct type right angle of heating chamber 6 of hollow type rectangular configuration Connection, the top for being provided with 7 heating chambers 6 of load is provided with antenna array 8, and the bottom of heating chamber 6 is provided with swinging mounting 9, rotates The top of support 9 is provided with the pallet 10 of circular plate-like shape structure；The microwave frequency that magnetron 1 is launched is 2.45GHZ；Microwave power supply 2 peak power output is 5KW；Circulator 3 is used to the back wave for loading 7 sending into water load 4, it is returned to magnetron 1, to protect magnetron 1；Water load 4 is used for the back wave for absorbing the feeding of circulator 3；Four tuners 5 are used to control heating chamber 6 Make the back wave of load 7 minimum；The material of heating chamber 6 is stainless steel；Antenna array 8 is used for converging microwave and microwave is smoothly entered Heating chamber 6；Swinging mounting 9 is used to rotate and support pallet 10, pallet 10 is moved in a circle under the drive of swinging mounting 9； Pallet 10 is used to carry the article being sintered.
The Gelcasting Technique that the present embodiment is related to, is suitable for large-scale production, it is possible to increase yield rate and finished product Reliability, significantly reduces manufacturing cost, eliminates the aggregate of ceramic powder particle, reduces complicated form part in sintering process Deformation and cracking, reduce the amount of machining of final products, obtain the ceramic material and part of high reliability；The green density of preparation Good with intensity height, uniformity, appearance and size is not fixed；Microwave sintering device is by microwave energy by converging day line traffic control certain empty Between in the range of, increasing heated perimeter simultaneously will be uniformly distributed energy, realize ceramic material serialization microwave sintering, and can and it is conventional Agglomerating plant is used in combination, and microwave sintering combination normal sintering can make up the heating-up temperature ladder that normal sintering is heated by heat transfer Uneven, heat time length that degree is big, material is heated and the big shortcoming of power consumption, while avoid ceramic material absorbs micro- in low temperature The problem of wave energy is poor.

Claims (5)

1. a kind of zirconium oxide tooth-implanting base station preparation method, it is characterised in that technical process include slurry prepare, blank forming and Microwave sintering totally three steps：
(1), prepared by slurry：By acrylamide monomer and N, N ' methylene-bisacrylamides are mixed according to 17: 1 mass ratio and made It is standby to obtain mixture, then by mixture and water according to 18：85 mass ratio, which is mixed with, obtains pre-mixing liquor, is added in pre-mixing liquor The dispersant of 0.5% mass fraction, purity are more than 99% and powdery 3Y-TZP of the granularity less than 20nm, and it is 9.5 to be configured to pH value It is more than 55% suspended substance with solid volume fraction, suspended substance obtains viscosity less than 200mPa.S after being mixed 10 hours through ball mill Aqueous systems ceramic slurry, mass percent of the mixture in aqueous systems ceramic slurry be 3%, complete slurry preparation；
(2), blank forming：Slurry is carried out after application of vacuum using Gelcasting Technique, 1% matter is added in the slurry Measure percentage initiator and 0.5% percent by volume catalyst formation mixture, by mixture at the uniform velocity be poured into mould Row gelation, is then stripped and is dried, and completes the shaping of base substrate；
(3), microwave sintering：Base substrate is put into the microwave sintering chamber of microwave sintering device, it is right according to the heating curve of setting Base substrate carries out microwave sintering.
2. zirconium oxide tooth-implanting base station preparation method according to claim 1, it is characterised in that the dispersant is quality Percent concentration is 5% ammonium polymethacrylate solution；Initiator is that the ammonium persulfate that mass percent concentration is 5% is water-soluble Liquid；Catalyst is the tetramethylethylenediamine aqueous solution that mass percent concentration is 5%.
3. zirconium oxide tooth-implanting base station preparation method according to claim 1, it is characterised in that the zirconium oxide plantation of preparation Yttria levels in tooth base station are 3%mol, and the density of zirconium oxide tooth-implanting base station is 6.05 gram per centimeters3, hardness is 12.22GPa, bending strength is 936.32MPa, and fracture toughness is 12.56Mpam1/2。
4. zirconium oxide tooth-implanting base station preparation method according to claim 1, it is characterised in that the microwave sintering device Agent structure include magnetron, microwave power supply, circulator, water load, four tuners, heating chamber, load, antenna array, turn Dynamic support and pallet；The left end duct type of the microwave power supply and circulator that are provided with magnetron is connected, and the lower end of circulator is set There is water load, the right-hand member of circulator is connected with the left end duct type of four tuners, right-hand member and the hollow type square of four tuners The heating chamber duct type right angle connection of shape structure, the top for being provided with load heating chamber is provided with antenna array, the bottom of heating chamber Swinging mounting is provided with, the top of swinging mounting is provided with the pallet of circular plate-like shape structure；The microwave frequency of magnetron is 2.45GHZ；The peak power output of microwave power supply is 5KW；Circulator is used to the back wave of load sending into water load, makes it not Cause to return to magnetron, to protect magnetron；Water load is used for the back wave for absorbing circulator feeding；Four tuners are used to control Heating chamber makes the back wave of load minimum；The material of heating chamber is stainless steel；Antenna array is used for converging microwave and makes microwave smooth Into heating chamber；Swinging mounting is used to rotate and support pallet, pallet is moved in a circle under the drive of swinging mounting；Pallet For carrying the article being sintered.
5. zirconium oxide tooth-implanting base station preparation method according to claim 1, it is characterised in that the gel casting forming Technology, is suitable for large-scale production, it is possible to increase yield rate and finished product reliability, significantly reduces manufacturing cost, eliminates ceramic powder The aggregate of body particle, reduces the deformation of complicated form part and cracking in sintering process, reduces the amount of machining of final products, Obtain the ceramic material and part of high reliability；The green density and intensity of preparation are high, uniformity is good, and appearance and size is not fixed； Microwave energy by converging day line traffic control in the range of certain space, is increased heated perimeter and will be uniformly distributed by microwave sintering device Energy, realizes ceramic material serialization microwave sintering, and can be used in combination with normal sintering equipment, and microwave sintering combines conventional Sintering can make up warming temperature gradient is big, material is heated uneven, the heat time length that normal sintering heats by heat transfer and The big shortcoming of power consumption, while avoiding ceramic material absorbs the problem of microwave energy is poor in low temperature.
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