CN108117396A - The preparation method of biomedical ceramics material based on silicon nitride - Google Patents
The preparation method of biomedical ceramics material based on silicon nitride Download PDFInfo
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Abstract
The present invention discloses a kind of preparation method of the biomedical ceramics material based on silicon nitride, belongs to bioceramic material field, using silicon nitride and hexagonal boron nitride as raw material, Al2O3And Y2O3Mixture is sintering aid, grinds sieving after mixing, is granulated using polyvinyl alcohol colloidal sol, is packed into mold, and in nitrogen atmosphere, 1750~1850 DEG C of temperature is sintered under the conditions of 25~35MPa of pressure, obtains the biomedical ceramics material based on silicon nitride.So that the biomedical ceramics material substitution joint not only good biocompatibility, and coefficient of friction is small based on silicon nitride, friction and wear behavior is good, simultaneously, it may have good processability improves its machinability.
Description
Technical field
The present invention relates to bioceramic material field, the preparation sides of the biomedical ceramics material specially based on silicon nitride
Method.
Background technology
Bioceramic material refers to be used as specifically biology or a kind of ceramic material of physiological function, that is, is directly used in human body
Or the ceramic material with relevant biological, the medical, biochemistry of human body etc., it is said from broad sense, all ceramic materials for belonging to bioengineering
It is referred to as bioceramic material.Silicon nitride ceramics itself has wear-resisting as a kind of Inorganic synthese material with property
Property and lubricity, be a kind of high temperature resistant structure ceramics, there is vast potential for future development, it has, and intensity is high, anti-thermal shock is stablized
The advantages that property is good, fatigue toughness is high, room temperature bending strength is high, wear-resisting, anti-oxidant, corrosion resistance and good, meanwhile, silicon nitride is not only
With nontoxicity, additionally aid cell and adsorb and normally rise in value and break up, have antibacterial in joint replacement, promote new bone formation
With increase protein absorption etc. characteristics, provide excellent biocompatibility and excellent mechanical performance.
With Artificial Joint Design technology continuously improve and ripe, clinical operation increasingly specification, manually joint
Displacement relative maturity and has got the nod to treat various bone and joint diseases.However as artificial joint prosthesis Implantation Time
Extension, the continuous friction in joint, wear particle constantly generate and induce Periprosthetic bone dissolve, cause the sterile loosening of prosthese,
So as to influence long-term efficacy of performing the operation, and storeroom coefficient of friction is larger may cause joint abnormal sound, so as to influence minimal invasive treatment
Quality seriously hinders the extensive use of artificial joint prosthesis.
The content of the invention
For problems of the prior art, the present invention provides a kind of biomedical ceramics material based on silicon nitride
Preparation method, coefficient of friction is small, and friction and wear behavior is good.
The present invention is to be achieved through the following technical solutions：
The preparation method of biomedical ceramics material based on silicon nitride, includes the following steps：
Step S1 weighs silicon nitride and hexagonal boron nitride, and the wherein mass ratio of silicon nitride and boron nitride is (2:1)~(1:
0) Al, is weighed2O3With Y2O3Mixture sintering auxiliary agent, wherein Al2O3With Y2O3The quality of mixture sintering auxiliary agent is the nitridation weighed
The 10%~12% of silicon and hexagonal boron nitride gross mass.
Step S2, the silicon nitride, hexagonal boron nitride and Al that will be weighed in step S12O3With Y2O3Mixture sintering auxiliary agent mixes
It closes uniformly, obtains mixture；
Step S3 grinds the mixture obtained in step S2, and is sieved with 100-160 mesh screens, obtains mixed powder；
Step S4 instills colloidal sol in the mixed powder obtained in step s3, is granulated, the colloidal sol is that mass concentration is 5
~10% polyvinyl alcohol water solution；
Product in step S4 is packed into mold by step S5, and precompressed is sintered in a nitrogen atmosphere, and sintering temperature 1750~
1850 DEG C, pressure is 25~35MPa, 30~60min of heat-insulation pressure keeping time.
Optionally, mixed nitride silicon, hexagonal boron nitride and Al in step S22O3With Y2O3During mixture sintering auxiliary agent, pass through
Ball mill mixing, by load weighted silicon nitride, hexagonal boron nitride and Al2O3With Y2O3Mixture sintering auxiliary agent is placed in ball grinder, is added
Enter zirconium dioxide abrading-ball, pour into alcohol, using the abundant mixing of planetary ball mill, planetary ball mill speed is 50~150r
min-1, Ball-milling Time is 5~6h.
Optionally, the quality for adding in zirconium dioxide abrading-ball is silicon nitride, hexagonal boron nitride and Al2O3With Y2O3Mixing
2~3 times of object sintering aid gross mass, the quality of alcohol is silicon nitride, hexagonal boron nitride and Al2O3With Y2O3Mixture sintering
2~3 times of auxiliary agent gross mass.
Optionally, further included between step S2 and S3, mixture is dried.
Optionally, further include before step S 4, take polyvinyl alcohol and water, prepared by 5~10% mass concentration
Colloidal sol.
Optionally, graphite paper is set in mold when the product in step S4 being packed into mold in step S5.
Optionally, in step S1, silicon nitride purity 99.99%, α phases>94%, 0.3 μm of volume fraction of average grain diameter is
90%, hexagonal boron nitride purity 99.6%, 0.5 μm of average grain diameter, Al2O3And Y2O3Purity>99.5%, average grain diameter is 1 μm.
Optionally, Al2O3With Y2O3In mixture sintering auxiliary agent, Al2O3And Y2O3Mass ratio be (2:3)~(3:2).
Optionally, it is every time 0.1~0.2ml when instilling colloidal sol in step S4.
A kind of biomedical ceramics material based on silicon nitride is prepared based on preparation method provided by the present invention.
Compared with prior art, the present invention has technique effect beneficial below：
The present invention discloses a kind of preparation method of the biomedical ceramics material based on silicon nitride, using silicon nitride and six sides
Boron nitride is as raw material, Al2O3And Y2O3Mixture is sintering aid, grinds sieving after mixing, is made using polyvinyl alcohol colloidal sol
Grain is packed into mold, and in nitrogen atmosphere, 1750~1850 DEG C of temperature is sintered under the conditions of 25~35MPa of pressure, obtains based on nitridation
The biomedical ceramics material of silicon.So that the not only good biofacies of the biomedical ceramics material substitution joint based on silicon nitride
Capacitive, and coefficient of friction is small, and friction and wear behavior is good, simultaneously, it may have good processability, improving it can process
Property.
Further, by setting graphite paper in mold so that product stripping is simple, no adhesion.
Description of the drawings
Fig. 1 is sintering mold configuration diagram；
Fig. 2 is hot-pressing sintering technique figure；
Fig. 3 is the friction factor change curve of the first biomedical ceramics material based on silicon nitride；
Fig. 4 is the friction factor change curve of second of biomedical ceramics material based on silicon nitride；
Fig. 5 is the friction factor change curve of the third biomedical ceramics material based on silicon nitride；
Fig. 6 is the friction factor change curve of the 4th kind of biomedical ceramics material based on silicon nitride；
Fig. 7 is the friction factor change curve of the 5th kind of biomedical ceramics material based on silicon nitride；
Fig. 8 is the friction pair wear rate of the biomedical ceramics material based on silicon nitride；
Fig. 9 is the friction pair average friction factor of the biomedical ceramics material based on silicon nitride.
Specific embodiment
With reference to specific embodiment, the present invention is described in further detail, it is described be explanation of the invention and
It is not to limit.
Embodiment one
1) dispensing：Example weighs the silicon nitride of 32.4g and the Al of 3.6g in mass ratio2O3And Y2O3Mixture sintering auxiliary agent.Its
In, silicon nitride purity 99.99%, α phases>94%, 0.3 μm of volume fraction of average grain diameter is 90%, hexagonal boron nitride purity
99.6%, 0.5 μm of average grain diameter, Al2O3And Y2O3Purity>99.5%, average grain diameter is 1 μm, Al2O3For 1.44g, Y2O3For
2.16g。
2) ball mill mixing：Load weighted powder is placed in ball grinder, zirconium dioxide bead is added in, pours into alcohol, is adjusted
Fluid viscosity, using the abundant mixing of planetary ball mill, speed is 50~150rmin-1, Ball-milling Time is about 5~6h；Its
In, zirconium dioxide bead amount is added in as 2 times of material weight, and addition alcohol amount is 2 times of material weight.
3) dry：The good powder of ball milling is put in heating in baking oven to be evaporated, is stirred in evaporation, until losing whole wine
Essence, while prevent from luming；
4) sieve：Mixture after drying is ground, and is sieved with 160 mesh screens.
5) colloidal sol is prepared：Polyvinyl alcohol is taken to be prepared with distilled water by 5% mass concentration, common 40g, in alcolhol burner heating environment
Under stir evenly dissolving.
6) it is granulated：A small amount of mixture is put into the sieve of 200 mesh and instills colloidal sol such as, hand granulation.Wherein, colloidal sol is instilled
Amount, 0.1ml.
7) feed：The graphite paper that thickness is 0.2mm on mold surrounding pad is in order to demould, by granulated loading mold
Middle carry out precompressed, Fig. 1 show the structure diagram of mold；
8) hot pressed sintering：The mold for installing powder is positioned in 5000 multifunctional sintering furnaces of HIGH MULTI, installation is adjusted
It is sintered after examination is good, hot-pressing sintering technique is as shown in Figure 2：Nitrogen atmosphere is protected, 1800 DEG C, pressure 30MPa of temperature, heat preservation
Dwell time 30min.The demoulding treats that furnace temperature is down to room temperature, opens bell, takes out mold, will be taken in the sample from mould sintered
Go out, and take the graphite paper being sticked on sample off, obtain the first biomedical ceramics material based on silicon nitride.
Referring to Fig. 3, match somebody with somebody for the first biomedical ceramics material (SN0) and titanium alloy (Ti6Al4V) based on silicon nitride
Secondary friction factor change curve, average friction factor are 0.2674, and under being in the growth friction factor of fraction time
Drop trend.
Embodiment two
1) dispensing：Example weighs the Al of the silicon nitride of 30.6g, the hexagonal boron nitride of 1.8g and 3.3g in mass ratio2O3With Y2O3
Mixture sintering auxiliary agent.
Wherein, silicon nitride purity 99.99%, α phases>94%, 0.3 μm of volume fraction of average grain diameter is 90%, six sides nitridation
Boron purity 99.6%, 0.5 μm of average grain diameter, Al2O3And Y2O3Purity>99.5%, average grain diameter is 1 μm, Al2O3For 1.32g,
Y2O3For 1.98g.
2) ball mill mixing：Load weighted powder is placed in ball grinder, zirconium dioxide bead is added in, pours into alcohol, is adjusted
Fluid viscosity uses the abundant mixing of planetary ball mill, speed 50rmin-1, Ball-milling Time is about 6h；Wherein, two are added in
Zirconia ball amount is 2.3 times of material weight, adds in alcohol amount to expect 2.3 times of weight.
3) dry：The good powder of ball milling is put in heating in baking oven to be evaporated, is stirred in evaporation, until losing whole wine
Essence, while prevent from luming；
4) sieve：Mixture after drying is ground, and is sieved with 100 mesh screens.
5) colloidal sol is prepared：Polyvinyl alcohol is taken to be prepared with distilled water by 10% mass concentration, is stirred under alcolhol burner heating environment
Even dissolving.
6) it is granulated.A small amount of mixture is put into the sieve of 300 mesh and instills colloidal sol, hand granulation.Wherein, colloidal sol is instilled
Amount, is every time 0.2ml.
7) feed：The graphite paper that thickness is 0.2mm on mold surrounding pad is in order to demould, by granulated loading mold
Middle carry out precompressed, Fig. 1 show the structure diagram of mold.
8) hot pressed sintering：The mold for installing powder is positioned in 5000 multifunctional sintering furnaces of HIGH MULTI, installation is adjusted
It is sintered after examination is good, hot-pressing sintering technique is as shown in Figure 2：Nitrogen atmosphere is protected, 1750 DEG C, pressure 25MPa of temperature, heat preservation
Dwell time 60min.The demoulding treats that furnace temperature is down to room temperature, opens bell, takes out mold, will be taken in the sample from mould sintered
Go out, and take the graphite paper being sticked on sample off, obtain second of biomedical ceramics material based on silicon nitride.
Referring to Fig. 4, match somebody with somebody for second biomedical ceramics material (SN5) and titanium alloy (Ti6Al4V) based on silicon nitride
Secondary friction factor change curve, average friction factor are 0.3499.
Embodiment three
1) dispensing：Example weighs the silicon nitride of 28.8g, the hexagonal boron nitride of 3.6g and 3.6 Al in mass ratio2O3With Y2O3
Mixture sintering auxiliary agent.Wherein, silicon nitride purity 99.99%, α phases>94%, 0.3 μm of volume fraction of average grain diameter is 90%, six
Square boron nitride purity 99.6%, 0.5 μm of average grain diameter, Al2O3And Y2O3Purity>99.5%, average grain diameter is 1 μm, Al2O3For
2.16g、Y2O3For 1.44g.
2) ball mill mixing：Load weighted powder is placed in ball grinder, zirconium dioxide bead is added in, pours into alcohol, is adjusted
Fluid viscosity uses the abundant mixing of planetary ball mill, speed 50rmin-1, Ball-milling Time is about 5.5h；Wherein, add in
Zirconium dioxide bead amount is 2.6 times of material weight, adds in alcohol amount to expect 2.6 times of weight.
3) dry：The good powder of ball milling is put in heating in baking oven to be evaporated, is stirred in evaporation, until losing whole wine
Essence, while prevent from luming；
4) sieve, the mixture after drying is ground, and sieved with 130 mesh screens.
5) colloidal sol is prepared：Polyvinyl alcohol is taken to be prepared with distilled water by 7% mass concentration, is stirred evenly under alcolhol burner heating environment
Dissolving.
6) it is granulated.A small amount of mixture is put into 200 mesh to instill colloidal sol, hand granulation in upper screen cloth.Wherein, colloidal sol is instilled
Amount, is every time 0.15ml.
7) feed, the graphite paper that thickness is 0.2mm on mold surrounding pad is in order to demould, by granulated loading mold
Middle carry out precompressed, Fig. 1 show the structure diagram of mold；
8) hot pressed sintering：The mold for installing powder is positioned in 5000 multifunctional sintering furnaces of HIGH MULTI, installation is adjusted
It is sintered after examination is good, hot-pressing sintering technique is as shown in Figure 2：Nitrogen atmosphere is protected, 1850 DEG C, pressure 35MPa of temperature, heat preservation
Dwell time 50min.The demoulding treats that furnace temperature is down to room temperature, opens bell, takes out mold, will be taken in the sample from mould sintered
Go out, and take the graphite paper being sticked on sample off, obtain the third biomedical ceramics material based on silicon nitride.
Referring to Fig. 5, to obtain the third biomedical ceramics material (SN10) and titanium alloy based on silicon nitride
(Ti6Al4V) with secondary friction factor change curve, average friction factor is 0.2469.
Example IV
1) dispensing：Example weighs the Al of the silicon nitride of 25.2g, the hexagonal boron nitride of 7.2g and 3.8g in mass ratio2O3With Y2O3
Mixture sintering auxiliary agent.Wherein, silicon nitride purity 99.99%, α phases>94%, 0.3 μm of volume fraction of average grain diameter is 90%, six
Square boron nitride purity 99.6%, 0.5 μm of average grain diameter, Al2O3And Y2O3Purity>99.5%, average grain diameter is 1 μm, Al2O3For
1.9g、Y2O3For 1.9g.
2) ball mill mixing：Load weighted powder is placed in ball grinder, zirconium dioxide bead is added in, pours into alcohol, is adjusted
Fluid viscosity uses the abundant mixing of planetary ball mill, speed 150rmin-1, Ball-milling Time 6h；Wherein, dioxy is added in
Change zirconium bead amount as 2.8 times of material weight, addition alcohol amount is 2.8 times of material weight.
3) dry：The good powder of ball milling is put in heating in baking oven to be evaporated, is stirred in evaporation, until losing whole wine
Essence, while prevent from luming；
4) sieve：Mixture after drying is ground, and is sieved with 160 mesh screens.
5) colloidal sol is prepared：Polyvinyl alcohol is taken to be prepared with distilled water by 5% mass concentration, it is stirred under alcolhol burner heating environment
Even dissolving.
6) it is granulated：A small amount of mixture is put into 500 mesh to instill colloidal sol, hand granulation in upper screen cloth.Wherein, colloidal sol is instilled
Amount, is every time 0.2ml.
7) feed：The graphite paper that thickness is 0.2mm on mold surrounding pad is in order to demould, by granulated loading mold
Middle carry out precompressed, Fig. 1 show the structure diagram of mold；
8) hot pressed sintering：The mold for installing powder is positioned in 5000 multifunctional sintering furnaces of HIGH MULTI, installation is adjusted
It is sintered after examination is good, hot-pressing sintering technique is as shown in Figure 2：Nitrogen atmosphere is protected, 1800 DEG C, pressure 30MPa of temperature, heat preservation
Dwell time 30min.The demoulding treats that furnace temperature is down to room temperature, opens bell, takes out mold, will be taken in the sample from mould sintered
Go out, and take the graphite paper being sticked on sample off, obtain the 4th kind of biomedical ceramics material based on silicon nitride.
Referring to Fig. 6, match somebody with somebody for the 4th kind of biomedical ceramics material (SN20) and titanium alloy (Ti6Al4V) based on silicon nitride
Secondary friction factor change curve, average friction factor are 0.2829.
Embodiment five
1) dispensing：Example weighs the Al of the silicon nitride of 21.6g, the hexagonal boron nitride of 10.8g and 3.7g in mass ratio2O3With
Y2O3Mixture sintering auxiliary agent.Wherein, silicon nitride purity 99.99%, α phases>94%, 0.3 μm of volume fraction of average grain diameter is
90%, hexagonal boron nitride purity 99.6%, 0.5 μm of average grain diameter, Al2O3And Y2O3Purity>99.5%, average grain diameter is 1 μm,
Al2O3For 1.8g, Y2O3For 1.9g.
2) ball mill mixing：Load weighted powder is placed in ball grinder, zirconium dioxide bead is added in, pours into alcohol, is adjusted
Fluid viscosity uses the abundant mixing of planetary ball mill, speed 100rmin-1, Ball-milling Time 5h；Wherein, dioxy is added in
Change zirconium bead amount as 3 times of material weight, addition alcohol amount is 3 times of material weight.
3) dry：The good powder of ball milling is put in heating in baking oven to be evaporated, is stirred in evaporation, until losing whole wine
Essence, while prevent from luming.
4) sieve：Mixture after drying is ground, and is sieved with 160 mesh screens.
5) colloidal sol is prepared：Polyvinyl alcohol is taken to be prepared with distilled water by 6% mass concentration, it is stirred under alcolhol burner heating environment
Even dissolving.
6) it is granulated：A small amount of mixture is put into 200 mesh to instill colloidal sol, hand granulation in upper screen cloth.Wherein, colloidal sol is instilled
Amount, is every time 0.15ml.
7) feed：The graphite paper that thickness is 0.2mm on mold surrounding pad is in order to demould, by granulated loading mold
Middle carry out precompressed, Fig. 1 show the structure diagram of mold；
8) hot pressed sintering：The mold for installing powder is positioned in 5000 multifunctional sintering furnaces of HIGH MULTI, installation is adjusted
It is sintered after examination is good, hot-pressing sintering technique is as shown in Figure 2：Nitrogen atmosphere is protected, 1800 DEG C, pressure 30MPa of temperature, heat preservation
Dwell time 30min.The demoulding treats that furnace temperature is down to room temperature, opens bell, takes out mold, will be taken in the sample from mould sintered
Go out, and take the graphite paper being sticked on sample off, obtain the 5th kind of biomedical ceramics material based on silicon nitride.
Referring to Fig. 7, match somebody with somebody for the 5th kind of biomedical ceramics material (SN30) and titanium alloy (Ti6Al4V) based on silicon nitride
Secondary friction factor change curve, average friction factor are 0.4491.
Using pin-disk contact, turn round bio-medical based on silicon nitride of the friction type to different content hexagonal boron nitride
The friction and wear behavior of ceramic material is investigated, wherein pin is using the biology doctor provided in an embodiment of the present invention based on silicon nitride
With ceramic material, disk uses Ti6Al4V materials, when table 1 is different hexagonal boron nitride content, base provided in an embodiment of the present invention
In the secondary pin mill loss rate of the friction of the biomedical ceramics material of silicon nitride, referring to table 1, Fig. 8 and Fig. 9, can draw to draw a conclusion：
The bio-medical based on silicon nitride obtained by the preparation method of biomedical ceramics material provided by the invention based on silicon nitride
The coefficient of friction of ceramic material is small, solves the extension of artificial joint prosthesis Implantation Time in the prior art, and joint is constantly rubbed
It wipes, wear particle constantly generates and Periprosthetic bone is induced to dissolve, and causes the sterile loosening of prosthese, so as to the long-term treatment that influences to perform the operation
Effect, and storeroom coefficient of friction is larger may cause joint abnormal sound, the problem of so as to influence patients ' life quality.Especially exist
Silicon nitride and hexagonal boron nitride ratio are (1:0)-(4:1) friction factor is small when, and low wear rate, therefore the life based on silicon nitride
Object medical ceramic material substitution joint not only good biocompatibility and friction and wear behavior, simultaneously, it may have it is good can
Processing performance improves its machinability.
The pin mill loss rate of the friction pair of 1 difference hBN contents of table
It should be noted that as shown in Figure 1, mold includes upper mold 1, inside lining sleeve 2, middle sleeve 3, lower die, outer sleeve 5 and base
Seat 6, inside lining sleeve 2, middle sleeve 3 and outer sleeve 5 are co-axially mounted, and lower die 4 and upper mold 1 are mounted in inside lining sleeve 2, under pedestal 6 is located at
The lower section of mould, powder 7 are mounted between upper die and lower die.
The specific embodiment lifted of the present invention is only the annotation to the invention spirit, person skilled in the art of the present invention
It can modify to the specific embodiment of description or similar method substitutes, without departing from the spirit of the present invention.
Claims (10)
1. the preparation method of the biomedical ceramics material based on silicon nitride, which is characterized in that include the following steps：
Step S1 weighs silicon nitride and hexagonal boron nitride, and the wherein mass ratio of silicon nitride and boron nitride is (2:1)~(1:0), claim
Take Al2O3With Y2O3Mixture sintering auxiliary agent, wherein Al2O3With Y2O3The quality of mixture sintering auxiliary agent be the silicon nitride that weighs and
The 10%~12% of hexagonal boron nitride gross mass；
Step S2, the silicon nitride, hexagonal boron nitride and Al that will be weighed in step S12O3With Y2O3The mixing of mixture sintering auxiliary agent is equal
It is even, obtain mixture；
Step S3 grinds the mixture obtained in step S2, and is sieved with 100-160 mesh screens, obtains mixed powder；
Step S4 instills colloidal sol in the mixed powder obtained in step s3, is granulated, the colloidal sol be mass concentration be 5~
10% polyvinyl alcohol water solution；
Product in step S4 is packed into mold by step S5, and precompressed is sintered in a nitrogen atmosphere, sintering temperature 1750~1850
DEG C, pressure is 25~35MPa, 30~60min of heat-insulation pressure keeping time.
2. the preparation method of the biomedical ceramics material based on silicon nitride as described in claim 1, which is characterized in that step
Mixed nitride silicon, hexagonal boron nitride and Al in S22O3With Y2O3It, will be load weighted by ball mill mixing during mixture sintering auxiliary agent
Silicon nitride, hexagonal boron nitride and Al2O3With Y2O3Mixture sintering auxiliary agent is placed in ball grinder, is added in zirconium dioxide abrading-ball, is poured into
Alcohol, using the abundant mixing of planetary ball mill, planetary ball mill speed is 50~150rmin-1, Ball-milling Time for 5~
6h。
3. the preparation method of the biomedical ceramics material based on silicon nitride as claimed in claim 2, which is characterized in that described
The quality for adding in zirconium dioxide abrading-ball is silicon nitride, hexagonal boron nitride and Al2O3With Y2O3The 2 of mixture sintering auxiliary agent gross mass
~3 times, the quality of alcohol is silicon nitride, hexagonal boron nitride and Al2O3With Y2O32~3 times of mixture sintering auxiliary agent gross mass.
4. the preparation method of the biomedical ceramics material based on silicon nitride as described in claim 1, which is characterized in that step
It is further included between S2 and S3, mixture is dried.
5. the preparation method of the biomedical ceramics material based on silicon nitride as described in claim 1, which is characterized in that in step
It is further included before rapid S4, takes polyvinyl alcohol and water, colloidal sol is prepared by 5~10% mass concentration.
6. the preparation method of the biomedical ceramics material based on silicon nitride as described in claim 1, which is characterized in that step
Graphite paper is set in mold when the product in step S4 being packed into mold in S5.
7. the preparation method of the biomedical ceramics material based on silicon nitride as described in claim 1, which is characterized in that step
In S1, silicon nitride purity 99.99%, α phases>94%, 0.3 μm of volume fraction of average grain diameter is 90%, hexagonal boron nitride purity
99.6%, 0.5 μm of average grain diameter, Al2O3And Y2O3Purity>99.5%, average grain diameter is 1 μm.
8. the preparation method of the biomedical ceramics material based on silicon nitride as described in claim 1, which is characterized in that Al2O3
With Y2O3In mixture sintering auxiliary agent, Al2O3And Y2O3Mass ratio be (2:3)~(3:2).
9. the preparation method of the biomedical ceramics material based on silicon nitride as described in claim 1, which is characterized in that step
It is every time 0.1~0.2ml when instilling colloidal sol in S4.
10. a kind of biomedical ceramics material based on silicon nitride, which is characterized in that based on any system described in claim 1-9
It is prepared by Preparation Method.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109124750A (en) * | 2018-08-06 | 2019-01-04 | 苏州玄陶商务咨询有限公司 | A kind of bone plate, Orthopedic fixation device and preparation method thereof |
| CN109330673A (en) * | 2018-08-06 | 2019-02-15 | 苏州玄陶商务咨询有限公司 | A kind of synthetism fixing piece, Orthopedic fixation device and preparation method thereof |
| CN109678524A (en) * | 2019-02-22 | 2019-04-26 | 苏州玄陶商务咨询有限公司 | A kind of silicon nitride ceramics implantation material and preparation method thereof that performance is controllable |
| CN109796210A (en) * | 2019-03-21 | 2019-05-24 | 山东工业陶瓷研究设计院有限公司 | A kind of silicon nitride medical embedded material and preparation method thereof |
| CN110698207A (en) * | 2019-11-08 | 2020-01-17 | 陕西科技大学 | Silicon nitride-based layered ceramic composite material and preparation method thereof |
| CN111302810A (en) * | 2020-03-09 | 2020-06-19 | 中国科学院上海硅酸盐研究所 | Low-noise silicon nitride ceramic-based friction material and preparation method and application thereof |
| CN114409383A (en) * | 2022-01-26 | 2022-04-29 | 苏州鼎安科技有限公司 | Surface-enhanced ceramic artificial joint convex-spherical friction part and preparation method thereof |
| CN116986914A (en) * | 2023-08-24 | 2023-11-03 | 衡阳凯新特种材料科技有限公司 | Preparation system and method of silicon nitride biological ceramic material |
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| CN109330673A (en) * | 2018-08-06 | 2019-02-15 | 苏州玄陶商务咨询有限公司 | A kind of synthetism fixing piece, Orthopedic fixation device and preparation method thereof |
| CN109678524A (en) * | 2019-02-22 | 2019-04-26 | 苏州玄陶商务咨询有限公司 | A kind of silicon nitride ceramics implantation material and preparation method thereof that performance is controllable |
| CN109678524B (en) * | 2019-02-22 | 2021-08-24 | 苏州玄陶商务咨询有限公司 | Silicon nitride ceramic implant with controllable performance and preparation method thereof |
| CN109796210A (en) * | 2019-03-21 | 2019-05-24 | 山东工业陶瓷研究设计院有限公司 | A kind of silicon nitride medical embedded material and preparation method thereof |
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| CN111302810A (en) * | 2020-03-09 | 2020-06-19 | 中国科学院上海硅酸盐研究所 | Low-noise silicon nitride ceramic-based friction material and preparation method and application thereof |
| CN111302810B (en) * | 2020-03-09 | 2021-04-16 | 中国科学院上海硅酸盐研究所 | Low-noise silicon nitride ceramic-based friction material and preparation method and application thereof |
| CN114409383A (en) * | 2022-01-26 | 2022-04-29 | 苏州鼎安科技有限公司 | Surface-enhanced ceramic artificial joint convex-spherical friction part and preparation method thereof |
| CN116986914A (en) * | 2023-08-24 | 2023-11-03 | 衡阳凯新特种材料科技有限公司 | Preparation system and method of silicon nitride biological ceramic material |
| CN116986914B (en) * | 2023-08-24 | 2024-02-13 | 衡阳凯新特种材料科技有限公司 | Preparation system and method of silicon nitride biological ceramic material |
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