CN107082639A - High-purity high-strength high-ductility zirconium oxide tungsten disulfide composite self-lubricating ceramics and preparation method thereof - Google Patents
High-purity high-strength high-ductility zirconium oxide tungsten disulfide composite self-lubricating ceramics and preparation method thereof Download PDFInfo
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Abstract
The invention provides a kind of brand-new high-purity high-strength high-ductility zirconium oxide tungsten disulfide composite self-lubricating ceramics and preparation method thereof.The present invention is mixed and mechanical alloying with nanoscale curing tungsten powder using nanoscale yttrium stable zirconium oxide powder with the method for high-energy ball milling to powder, and add dispersant, binding agent and deionized water ball milling turn into slurry, then granulated by the method for centrifugal spray granulation, it is compressing by isostatic cool pressing, it is made finally by the method for HIP sintering, the present invention has the advantages that high compact high-strength degree lubricity is good, not only technique and equipment are simple by the present invention, cost is low, high income, energy consumption is low, production efficiency is high, it is adapted to industrialized production, and result in steady quality, coefficient of friction is small, the tiny controllable zirconium oxide tungsten disulfide composite self-lubricating ceramics of crystal grain, process of the present invention is without Environment pollution, it is a kind of new low cost, the preparation method of the high-purity high-strength high-ductility zirconium oxide tungsten disulfide composite self-lubricating ceramics of steady quality.
Description
Technical field
The invention belongs to material preparation process technical field, and in particular to a kind of high-purity high-strength high-ductility zirconium oxide tungsten disulfide
Composite self-lubricating ceramics and preparation method thereof.
Background technology
The research tendency of self-lubricating technology with the development of science and technology, non-environmental-pollution, friction durability length, low friction,
The solid lubricant of selfreparing the high-tech areas such as electronics, biology, communication, space flight and aviation apply it is more and more extensive.
Solid self lubricant material enjoys common people to pay close attention to as the most promising developing direction of lubricating area, and following research is mainly concentrated
The studying of theoretical research, novel solid self-lubricating material in self-lubricating material, the studying of new self-lubricating mode, new material
Expect several aspects such as structure design.Ceramics have very excellent mechanical property at high temperature, are especially suitable for applying at high temperature.
In numerous structural ceramics, zirconia ceramics with transformation toughening effect because causing increasing concern, with extensive
Application prospect.ZrO2Ceramics belong to new ceramics, with very excellent physics, chemical property, not only in scientific research field
Through as focus, and also it is widely applied in the industrial production, is refractory material, high-temperature structural material and electronic material
Important source material.Moreover, ZrO2High high-temp stability, heat-proof quality preferably, optimum does ceramic coating and high-temperature wearable material
Material.But the too high shortcoming of friction factor, the application of zirconia ceramics is seriously limited, is studied with zirconia ceramics material
Deepen continuously, self-lubricating material research seems necessary.Using zirconium oxide as wear-resistant matrix, compound kollag to prepare certainly
Lubrication composite ceramics is considered as a kind of material under high temperature that solves and lubricates important approach, although at present both at home and abroad to zirconia ceramics
The existing Primary Study of material, but early stage is also in the system research of its self-lubrication ceramic, and with modern science and skill
The development of art, in view of the more extensive high-temperature self-lubrication of temperature applicability is researched and developed in an urgent demand of the field such as aerospace, the energy and machinery
Material.
Chinese patent 200710077310.3 provides a kind of Zirconia ceramics with graphite lubrication powder, the ceramic surface
Graphite concentration is higher than inside.A kind of sliding bearing of Zirconia ceramics with graphite lubrication powder is provided simultaneously, and the bearing includes axle
There is the endoporus that a support shaft core is rotated at core and axle sleeve, the axle sleeve center.One kind is also provided and carries graphite lubrication powder zirconium oxide pottery
The manufacture method of porcelain, it comprises the following steps：Sintering obtains common zirconia ceramics, and common zirconia ceramics adsorbs graphite lubrication
Agent powder.
Chinese patent 95121439.X provides a kind of zirconium oxide-graphite self-lubricating composite ceramic material.By nanometer ZrO2
(Y2O33%mol）Ceramic powder, by adding a certain amount of graphitic lubricant and sintering aid batch mixing, through pre-molding, compared with low temperature
The lower Fast Sintering of degree, can obtain compact zirconia-graphite composite ceramic material that relative density is 97%, obtained composite ceramics
Material has higher hardness, and good antifriction and abrasion resistance are shown under water lubrication.
Chinese patent 201410590493.9 provides a kind of self lubricity nozzle ceramics, by the raw material of following parts by weight
It is made：Graphite 3-4, fluorographite 1-2, molybdenum disulfide 1-2, glass microballoon 0.3-0.4, fluorite 4-6, potassium nitrate 1-2, sodium fluoride
1-2, superfine zirconia powder 20-24, kaolin 65-70, tetraethyl orthosilicate 3-4, sodium hydroxide 2-3, appropriate deionized water, ethanol
In right amount, auxiliary agent 4-6；The ceramic quality of the invention is fine and smooth, and stomata is few, is not pulverized easily；By adding graphite, fluorographite so that
Ceramics have self lubricity, can extend nozzle service life；By using the auxiliary agent of the invention, by increasing capacitance it is possible to increase ceramic surface light
Slip, wearability and heat resistance.
Chinese patent 201110327284.1 provides a kind of aluminium oxide ceramics self-lubricating composite and preparation method thereof.
Material is made up of aluminum oxide, zirconium oxide and compounded lubricant, and top layer is alumina layer, and wall is alumina-silica zirconium layer, material
Material is prepared with laying-cold pressing-heat pressing process.Material has excellent mechanics and tribological property, the wide (room temperature of adaptive temperature scope concurrently
~1000 DEG C), it can be used as the lubrication and encapsulant under extreme severe rugged environment (high temperature, burn into special atmosphere etc.).
Chinese patent 201410630575.1 provides a kind of cutting tool self-lubricating abrasion-resistant ceramics, by following parts by weight
Raw material be made：Bismuth sulfide 2-3, diethanol amine 2-3, ammonium sulfate 2-3, magnesium chloride 2-3, carbide slurry 2-3, graphene oxide 2-3,
KOH0.6-0.8, Emulsifier EL-60 0.2-0.3, magnesia 3-4, titanium boride 36-40, nano tungsten trioxide 4-5, titanium carbide
30-35, beryllium oxide 3-5, silver powder 1-2, appropriate amount of ethanol, appropriate deionized water, polyacrylic acid 1-1.5, polyethylene glycol 1.2-1.6,
Wear-resistant auxiliary agent 4-5；The ceramics of the invention add the resistance to elevated temperatures of ceramics by adding nano tungsten trioxide；The ceramics have
The features such as having high temperature resistant, large carrying capacity, self-lubricating, thermal shock resistance and high abrasion, it is adaptable to make cutting tool；By making
With the wear-resistant auxiliary agent of the invention, by increasing capacitance it is possible to increase ceramic wearability and heat resistance.
Chinese patent 201210242669.2 provides a kind of self-lubricating solid high-temperature wearable powder composition and its compound
The preparation method of coating.By mass percentage, the composition of the powder composition includes：Nickel 14%~17.5%, chromium 3%~3.5%, carbon
Change the tungsten disulfide 25%~30% of chromium 49%~52.5% and Surface coating nickel-phosphor alloy；Using laser melting and coating technique by the powder
Composition is prepared into self-lubricating solid high-temperature wearable composite coating.The invention is with NiCr-Cr3C2Composite powder is metallic matrix, multiple
Coating is closed by ceramic wear-resisting phase and Metal toughened phase composition, WS2For solid lubrication phase, and in WS2Powder particle surface is using chemistry
The method of plating coats one layer of micron order Ni-P alloy, increases WS2Heat endurance and chemical stability, can effectively suppress WS2Swashing
Decomposition and evaporation in light cladding process, increase its compatibility with metallic matrix, and the composite coating has high temperature from profit
Sliding wear-resisting characteristic.
Existing composite self-lubricating ceramic technology proportioning is complicated, and technical process is relative complex, use graphite lubrication pattern more, no
The production of features part can be used for.
The content of the invention
It is complicated in order to solve prior art proportioning, it is impossible to meet accurate self-lubrication ceramic production purposes, the invention provides
A kind of brand-new high-purity high-strength high-ductility zirconium oxide tungsten disulfide composite self-lubricating ceramics and preparation method thereof.The purpose of the present invention exists
In overcoming the shortcoming of prior art, there is provided the self-lubrication ceramic preparation side that high-purity yttrium stable zirconium oxide and high-purity tungsten disulfide are combined
Method, using nanoscale yttrium stable zirconium oxide powder and nanoscale curing tungsten powder powder mix with the method for high-energy ball milling with
Mechanical alloying, is then granulated by the method for centrifugal spray granulation, compressing by isostatic cool pressing, finally by heat
The method of isostatic sintering is made, the present invention have the advantages that high compact high-strength degree lubricity is good, the present invention not only technique with set
Standby simple, cost is low, and high income, energy consumption is low, and production efficiency is high, is adapted to industrialized production, and result in steady quality, crystalline substance
The tiny controllable zirconium oxide tungsten disulfide composite self-lubricating ceramics of grain, process of the present invention is a kind of new low without Environment pollution
The preparation method of cost, the high-purity high-strength high-ductility zirconium oxide tungsten disulfide composite self-lubricating ceramics of steady quality.
The ceramic relative density of high-purity high-strength high-ductility zirconium oxide tungsten disulfide composite self-lubricating of the present invention is 99% ~
100%, host element purity is 99.9% ~ 99.999%, and bending strength is 1000 ~ 1600MPa, and coefficient of friction is 0.03 ~ 0.2, crystal grain
Size is 0.5 ~ 20 micron, and Vickers hardness is HV1200 ~ 2000.
Preferably, the relative density of described high-purity high-strength high-ductility zirconium oxide tungsten disulfide composite self-lubricating ceramics is
99.5%~100%。
Preferably, the host element purity of described high-purity high-strength high-ductility zirconium oxide tungsten disulfide composite self-lubricating ceramics is
99.99%~99.999%。
Preferably, the bending strength of described high-purity high-strength high-ductility zirconium oxide tungsten disulfide composite self-lubricating ceramics is 1200
~1600MPa。
Preferably, the coefficient of friction of described high-purity high-strength high-ductility zirconium oxide tungsten disulfide composite self-lubricating ceramics is 0.05
~0.15。
Preferably, the crystallite dimension of described high-purity high-strength high-ductility zirconium oxide tungsten disulfide composite self-lubricating ceramics is 1 ~ 5
Micron.
The host element of high-purity high-strength high-ductility zirconium oxide tungsten disulfide composite self-lubricating of the present invention ceramics is zirconium oxide,
Three kinds of yittrium oxide and tungsten disulfide, described host element purity are the percentage by weight of three kinds of host element weight and gross weight.
In order to reach above-mentioned use requirement, the technical scheme that the present invention is used is high-purity high-strength high-ductility zirconium oxide tungsten disulfide
The preparation method of composite self-lubricating ceramics, methods described is comprised the following steps that.
（1）Nano level yttrium stable zirconium oxide powder and curing tungsten powder are weighed according to a certain percentage, and two kinds of nano powders are put
Enter in ball grinder, high-energy ball milling processing is carried out with high energy ball mill.
（2）In step（1）Binding agent, dispersant and deionized water are put into the good mixed powder of middle ball milling, continues ball milling, obtains
Obtain mixed powder slurry.
（3）By step（2）Middle acquisition mixed powder slurry is put into progress granulation processing in centrifugal spraying granulator.
（4）By step（3）The pelletizing of middle acquisition is put into progress isostatic cool pressing processing in isostatic cool pressing gum cover.
（5）By step（4）Middle acquisition isostatic cool pressing blank is put into steel capsule, and high temperature insostatic pressing (HIP) jacket is made.
（6）By step（5）The high temperature insostatic pressing (HIP) jacket of middle acquisition carries out degreasing degassing process.
（7）By step（6）Jacket after the degassing of middle acquisition is put into progress HIP sintering processing in hot isostatic press.
（8）By step（7）The ceramic ingot that middle HIP sintering is finished takes out, and removes jacket, produces high-purity high-strength high
Tough zirconium oxide tungsten disulfide composite self-lubricating ceramics.
（9）Measuring process（8）The density of middle zirconium oxide tungsten disulfide composite self-lubricating ceramics, purity, coefficient of friction, crystal grain
Size, bending strength and hardness.
The present invention is high-purity high-strength high-ductility zirconium oxide tungsten disulfide composite self-lubricating ceramics and preparation method thereof, in order to allow this
Invention to above-mentioned steps effectively, it is necessary to refine, and specific thinning parameter is as follows.
Step（1）In, the molar percentage of yittrium oxide is 3 ~ 10% in the yttrium stable zirconium oxide powder of selection.
Step（1）In, the percentage by weight of described yttrium stable zirconium oxide powder is 80% ~ 99.9%, and surplus is tungsten disulfide.
Step（1）In, the primary particle size of described yttrium stable zirconium oxide powder is 1 ~ 100 nanometer.
Step（1）In, the primary particle size of described curing tungsten powder is 1 ~ 100 nanometer.
Step（1）In, the purity of described yttrium stable zirconium oxide powder is 99.9 ~ 99.999%.
Step（1）In, the purity of described curing tungsten powder is 99.9 ~ 99.999%.
Step（1）In, described mixed powder Ball-milling Time is 2 ~ 12 hours.
Preferably, step（1）In, the molar percentage of yittrium oxide is 3 ~ 5% in the yttrium stable zirconium oxide powder of selection..
Preferably, step（1）In, the percentage by weight of the yttrium stable zirconium oxide powder of selection is 90% ~ 99.9%, and surplus is two
Tungsten sulfide.
Preferably, step（1）In, the yttrium stable zirconium oxide powder primary particle size of selection is 10 ~ 40 nanometers.
Preferably, step（1）In, the curing tungsten powder primary particle size of selection is 10 ~ 40 nanometers.
Preferably, step（1）In, the Ball-milling Time of described mixed powder is 4 ~ 12 hours.
Step（2）In, the binding agent of selection includes at least one of polyvinyl alcohol, polyvinyl chloride.
Step（2）In, the dispersant of selection is at least one of ethanol, n-butanol, polyethylene glycol.
Step（2）In, described mixed slurry Ball-milling Time is 2 ~ 12 hours.
Preferably, step（2）In, the binding agent of selection is polyvinyl alcohol.
Preferably, step（2）In, the dispersant of selection is polyethylene glycol.
Step（3）In, described pelletizing particle diameter is that D50 is 10 ~ 200 microns.
Preferably, step（3）In, described pelletizing particle diameter is that D50 is 20 ~ 100 microns.
Step（4）In, described isostatic cool pressing gum cover material is one kind in polyurethane, black rubber.
Step（4）In, described isostatic cool pressing processing pressure is 200 ~ 500MPa, and the dwell time is 5 ~ 30 minutes.
Preferably, step（4）In, the isostatic cool pressing gum cover material of selection is polyurethane.
Preferably, step（4）In, the isostatic cool pressing processing pressure of selection is 300 ~ 400MPa, and the dwell time is 10 ~ 15 points
Clock.
Step（5）In, described high temperature insostatic pressing (HIP) jacket is welded using argon arc welding.
Step（6）In, described high temperature insostatic pressing (HIP) jacket degreasing degassing includes first stage degassing process, second stage degreasing
Processing and phase III degassing process.
Step（6）In, described high temperature insostatic pressing (HIP) jacket degreasing degassing includes first stage degassing process parameter for temperature 100
~ 300 degree, 2 ~ 24 hours processing times, degassing keeps pressure in jacket to be 1.0 × 10-2~5.0×10-2Pa。
Step（6）In, described high temperature insostatic pressing (HIP) jacket degreasing degassing includes second stage ungrease treatment parameter for temperature 400
~ 1000 degree, 2 ~ 48 hours processing times, degassing keeps pressure in jacket to be 1.0 × 10-2~5.0×10-2Pa。
Step（6）In, described high temperature insostatic pressing (HIP) jacket degreasing degassing includes phase III degassing process parameter for temperature 100
~ 300 degree, 2 ~ 24 hours processing times, degassing keeps pressure in jacket to be 1.0 × 10-3~5.0×10-3Pa。
Preferably, step（6）In, described high temperature insostatic pressing (HIP) jacket degreasing degassing includes first stage degassing process parameter and is
200 ~ 300 degree of temperature, 12 ~ 24 hours processing times, degassing keeps pressure in jacket to be 1.0 × 10-2~5.0×10-2Pa。
Preferably, step（6）In, described high temperature insostatic pressing (HIP) jacket degreasing degassing includes second stage ungrease treatment parameter and is
400 ~ 800 degree of temperature, 12 ~ 24 hours processing times, degassing keeps pressure in jacket to be 1.0 × 10-2~5.0×10-2Pa。
Preferably, step（6）In, described high temperature insostatic pressing (HIP) jacket degreasing degassing includes phase III degassing process parameter and is
200 ~ 300 degree of temperature, 12 ~ 24 hours processing times, degassing keeps pressure in jacket to be 1.0 × 10-3~5.0×10-3Pa。
Step（7）In, described HIP sintering technique is 100 ~ 170MPa of sintering pressure, sintering temperature is 1000 ~
1400 DEG C, sintering time is 2 ~ 10 hours.
Preferably, step（7）In, described HIP sintering technique is 140 ~ 170MPa of sintering pressure, sintering temperature
For 1100 ~ 1300 DEG C, sintering time is 2 ~ 4 hours.
Step（9）In, described density measuring instrument is Archimedes's drainage density of solid detector.
Step（9）In, described purity detecting instrument is inductively coupled plasma atomic emission spectrometer.
Step（9）In, described friction coefficient measuring apparatus device is coefficient of friction detector.
Step（9）In, described crystallite dimension measuring instrument is SEM.
Step（9）In, described bending strength measuring instrument measures testing machine for three-point bending.
Step（9）In, described hardness measurement instrument is Vickers.
Step（9）In, the relative density of described zirconium oxide tungsten disulfide composite self-lubricating ceramics is 99 ~ 100%.
Step（9）In, the purity of described zirconium oxide tungsten disulfide composite self-lubricating ceramics is 99.9 ~ 99.999%.
Step（9）In, the coefficient of friction of described zirconium oxide tungsten disulfide composite self-lubricating ceramics is 0.03 ~ 0.2.
Step（9）In, the crystallite dimension of described zirconium oxide tungsten disulfide composite self-lubricating ceramics is 0.5 ~ 20 micron.
Step（9）In, the bending strength of described zirconium oxide tungsten disulfide composite self-lubricating ceramics is 1000 ~ 1600MPa.
Step（9）In, the hardness of described zirconium oxide tungsten disulfide composite self-lubricating ceramics is HV1200 ~ 2000.
Embodiment
The present invention relates to a kind of high-purity high-strength high-ductility zirconium oxide tungsten disulfide composite self-lubricating ceramics and preparation method thereof, tool
Body implementation steps are as follows.
（1）From the yttrium stable zirconium oxide powder that yittrium oxide molar percentage is 3%, by weight yttrium stable zirconium oxide powder：Two
Vulcanize tungsten powder=9:1 weighs nano level yttrium stable zirconium oxide powder and curing tungsten powder, and the primary particle size of yttrium stable zirconium oxide powder is
40 nanometers, the primary particle size of curing tungsten powder is 50 nanometers, and the purity of yttrium stable zirconium oxide powder is 99.99%, curing tungsten powder
Purity is 99.99%, and two kinds of nano powders are put into ball grinder, and high-energy ball milling is carried out with high energy ball mill and is handled 8 hours.
（2）In step（1）Polyvinyl alcohol, polyethylene glycol and deionized water are put into the good mixed powder of middle ball milling, continues ball
Mill 8 hours, obtains mixed powder slurry.
（3）By step（2）Middle acquisition mixed powder slurry, which is put into centrifugal spraying granulator, carries out granulation as D50=57
The pelletizing of micron.
（4）By step（3）The pelletizing of middle acquisition is put into progress isostatic cool pressing processing in polyurethane isostatic cool pressing gum cover, place
Reason pressure is 380MPa, and the dwell time is 12 minutes.
（5）By step（4）Middle acquisition isostatic cool pressing blank is put into steel capsule, and high temperature insostatic pressing (HIP), which is made, with argon arc welding welding uses
Jacket.
（6）By step（5）The high temperature insostatic pressing (HIP) jacket of middle acquisition carries out degreasing degassing process, first stage degassing process parameter
For 260 degree of temperature, 12 hours processing times, degassing keeps pressure in jacket to be 1.0 × 10-2~5.0×10-2Pa, second stage
Ungrease treatment parameter is 580 degree of temperature, and 18 hours processing times, degassing keeps pressure in jacket to be 1.0 × 10-2~5.0×10- 2Pa, phase III degassing process parameter be 260 degree of temperature, 18 hours processing times, degassing keep jacket in pressure be 1.0 ×
10-3~5.0×10-3Pa。
（7）By step（6）Jacket after the degassing of middle acquisition is put into progress HIP sintering processing in hot isostatic press,
HIP sintering technique is sintering pressure 150MPa, and sintering temperature is 1150 DEG C, and sintering time is 5 hours.
（8）By step（7）The ceramic ingot that middle HIP sintering is finished takes out, and removes jacket, produces high-purity high-strength high
Tough zirconium oxide tungsten disulfide composite self-lubricating ceramics.
（9）Measuring process（8）The relative density of middle zirconium oxide tungsten disulfide composite self-lubricating ceramics is 99.6%, and purity is
99.9691%, coefficient of friction is 0.08, and grain size is 4.7 microns, and bending strength is 1221MPa, and hardness is HV1608.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent change or modification that Spirit Essence is made, should all cover within the scope of the present invention.
Claims (10)
1. a kind of high-purity high-strength high-ductility zirconium oxide tungsten disulfide composite self-lubricating ceramics and preparation method thereof, it is characterised in that specific
Step is as follows：
（1）Nano level yttrium stable zirconium oxide powder and curing tungsten powder are weighed, two kinds of nano powders are put into ball grinder and use high energy
Ball mill carries out high-energy ball milling processing；
（2）In step（1）Binding agent, dispersant and deionized water are put into the good mixed powder of middle ball milling, continues ball milling, is mixed
Close powdery pulp；
（3）By step（2）Middle acquisition mixed powder slurry is put into progress granulation processing in centrifugal spraying granulator；
（4）By step（3）The pelletizing of middle acquisition is put into progress isostatic cool pressing processing in isostatic cool pressing gum cover；
（5）By step（4）Middle acquisition isostatic cool pressing blank is put into steel capsule, and high temperature insostatic pressing (HIP) jacket is made；
（6）By step（5）The high temperature insostatic pressing (HIP) jacket of middle acquisition carries out degreasing degassing process；
（7）By step（6）Jacket after the degassing of middle acquisition is put into progress HIP sintering processing in hot isostatic press；
（8）By step（7）The ceramic ingot that middle HIP sintering is finished, which takes out, removes jacket；
（9）Measuring process（8）The density of middle zirconium oxide tungsten disulfide composite self-lubricating ceramics, purity, coefficient of friction, crystal grain chi
Very little, bending strength and hardness.
2. high-purity high-strength high-ductility zirconium oxide tungsten disulfide composite self-lubricating ceramics according to claim 1 and its preparation side
Method, it is characterised in that：Step（1）In, the percentage by weight of described yttrium stable zirconium oxide powder is 80% ~ 99.9%, and surplus is two
Tungsten sulfide.
3. high-purity high-strength high-ductility zirconium oxide tungsten disulfide composite self-lubricating ceramics according to claim 1 and its preparation side
Method, it is characterised in that：Step（1）In, the purity of described yttrium stable zirconium oxide powder is 99.9 ~ 99.999%.
4. high-purity high-strength high-ductility zirconium oxide tungsten disulfide composite self-lubricating ceramics according to claim 1 and its preparation side
Method, it is characterised in that：Step（1）In, the purity of described curing tungsten powder is 99.9 ~ 99.999%.
5. high-purity high-strength high-ductility zirconium oxide tungsten disulfide composite self-lubricating ceramics according to claim 1 and its preparation side
Method, it is characterised in that：Step（9）In, the relative densities of described zirconium oxide tungsten disulfide composite self-lubricating ceramics for 99 ~
100%。
6. high-purity high-strength high-ductility zirconium oxide tungsten disulfide composite self-lubricating ceramics according to claim 1 and its preparation side
Method, it is characterised in that：Step（9）In, the purity of described zirconium oxide tungsten disulfide composite self-lubricating ceramics for 99.9 ~
99.999%。
7. high-purity high-strength high-ductility zirconium oxide tungsten disulfide composite self-lubricating ceramics according to claim 1 and its preparation side
Method, it is characterised in that：Step（9）In, the coefficient of frictions of described zirconium oxide tungsten disulfide composite self-lubricating ceramics for 0.03 ~
0.2。
8. high-purity high-strength high-ductility zirconium oxide tungsten disulfide composite self-lubricating ceramics according to claim 1 and its preparation side
Method, it is characterised in that：Step（9）In, the crystallite dimension of described zirconium oxide tungsten disulfide composite self-lubricating ceramics is 0.5 ~ 20
Micron.
9. high-purity high-strength high-ductility zirconium oxide tungsten disulfide composite self-lubricating ceramics according to claim 1 and its preparation side
Method, it is characterised in that：Step（9）In, the bending strengths of described zirconium oxide tungsten disulfide composite self-lubricating ceramics for 1000 ~
1600MPa。
10. high-purity high-strength high-ductility zirconium oxide tungsten disulfide composite self-lubricating ceramics according to claim 1 and its preparation side
Method, it is characterised in that：Step（9）In, the hardness of described zirconium oxide tungsten disulfide composite self-lubricating ceramics for HV1200 ~
2000。
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109554693A (en) * | 2018-12-12 | 2019-04-02 | 山东大学 | A kind of metal surface wear resistant friction reducing zirconia ceramics coating and preparation method thereof |
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|---|---|---|---|---|
| JPH034100A (en) * | 1989-06-01 | 1991-01-10 | Toshiba Corp | Lubrication mechanism |
| CN2140444Y (en) * | 1993-02-08 | 1993-08-18 | 包维兴 | Ceramic bearing having surface specially treated |
| CN1412150A (en) * | 2002-11-19 | 2003-04-23 | 中国科学院兰州化学物理研究所 | Self-lubricating ceramic composite material and its preparation process |
| CN104439247A (en) * | 2014-12-30 | 2015-03-25 | 山东昊轩电子陶瓷材料有限公司 | Molybdenum alloy target preparation method |
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2017
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH034100A (en) * | 1989-06-01 | 1991-01-10 | Toshiba Corp | Lubrication mechanism |
| CN2140444Y (en) * | 1993-02-08 | 1993-08-18 | 包维兴 | Ceramic bearing having surface specially treated |
| CN1412150A (en) * | 2002-11-19 | 2003-04-23 | 中国科学院兰州化学物理研究所 | Self-lubricating ceramic composite material and its preparation process |
| CN104439247A (en) * | 2014-12-30 | 2015-03-25 | 山东昊轩电子陶瓷材料有限公司 | Molybdenum alloy target preparation method |
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| CN109554693A (en) * | 2018-12-12 | 2019-04-02 | 山东大学 | A kind of metal surface wear resistant friction reducing zirconia ceramics coating and preparation method thereof |
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