CN108314427A - It is a kind of with nanoporous flexible screen test black ceramic plate preparation and production technology - Google Patents
It is a kind of with nanoporous flexible screen test black ceramic plate preparation and production technology Download PDFInfo
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Abstract
The present invention is prepared for the black ceramic plate of the laser positioning with nanoporous flexible screen, flexible battery plate processing positioning, includes the following steps：First, in accordance with SrCO3、Y2O3、Co3O4, CuO amount press Sr：Y：Co：The molar ratio of Cu is 3:1:(4‑x):xRatio weigh SrCO3、Y2O3、Co3O4, CuO makes it grind 1 ~ 2h after mixing to obtain mixed-powder；Then obtained mixed-powder is subjected to tabletting；Finally, the mixed-powder after tabletting is sintered in high-temperature vacuum furnace, Sr is just obtained after sintering3YCo4‑x Cu x O10.5Porous ceramics.It is of the present invention, whereinxValue is 0 ~ 0.4.In order to realize that the brightness of porous ceramics reaches 0.1 grade, the scratch of flexible circuit board, flexible screen is not interfered with, then the powdered frit of 1 ~ 2um of plasma spray on its plank is sintered 800 degree again, soaking time is 8 ~ 12h.The processing on surface is carried out after coming out of the stove using Twp-sided polishing machine.
Description
Technical field
The present invention relates to a kind of positioning of the laser precision machining of super-thin electronic flexible screen, flexible circuit board and platform absorption
Testing field, and in particular to a kind of isostatic pressed, vacuum drying oven are sintered the preparation process being combined, and flexible ceramic plate is made to have
There is the porous flexible ceramic wafer for the open pores that cross one another.
Technical background
With the development of aerospace field, more stringent requirements are proposed to thermally protective materials and structure for aerospace craft,
Need novel thermal protection material of the development with more operation at high temperature, smaller density, more preferable heat-proof quality and stronger mechanical property
Material, high temperature resistant porous ceramics is the important candidate material of one kind therein.Porous ceramics is a kind of new ceramics functional material,
It is a kind of energy saving and environment friendly material, is a kind of ceramic material using stomata as main phase, development starts from 19th-century 70 years
Generation.
Ceramics itself have the advantages that stable physico-chemical property, such as wear-resistant, high temperature resistant, corrosion-resistant, therefore porous pottery
Porcelain equally also has the general advantage of ceramics.In addition to this, since porous ceramics has the higher porosity, it can also be used
It is used as filtering, sound insulation, heat-barrier material etc..Porous ceramics has that density is low, large specific surface area, thermal conductivity are small and resistance to height
The good characteristics such as warm, corrosion-resistant, therefore it is widely used in the necks such as metallurgy, chemical industry, environmental protection, the energy, biology, food, medicine
Domain, as filtering, separation, diffusion, gas distribution, heat-insulated, sound absorption, chemical filler, bioceramic, chemical sensor, catalyst carrier
Equal element materials.It is especially used at anti-/ heat-insulated aspect, is other porous materials (such as C/C composite materials, porous metals)
It is incomparable, show the peculiar advantage of porous ceramic film material.Therefore, it the exploitation of high-performance porous ceramic film material and grinds
Study carefully a hot spot of always heat-barrier material research in recent years.
Due to preparing the difference of porous ceramics method and raw material, lead to porosity, the difference of the mechanical performances such as intensity,
Thus their function is also not quite similar, and the porous ceramics for having different performance has different applications in different aspect.Particle
Accumulation molding method is directed to that the identical subparticle of constituent is added in aggregate, and subparticle generates under conditions of high temperature
Liquid phase, is easy to be sintered, and porous structure is interconnected to form so as to cause aggregate.The porous ceramics prepared using the method, hole
Diameter size is directly proportional to particles of aggregates diameter, and particles of aggregates is bigger, and the average pore size of the porous ceramics of formation is bigger.
Addition pore creating material method is that pore creating material is added in ceramic batch, occupies certain space in green body using pore creating material, then pass through
The methods of high temperature sintering, plastic removal allow the pore creating material to leave matrix and prepare porous ceramics to form hole.Add the side of pore creating material
The product of complex-shaped, various air hole structures can be made in method, but gas cell distribution inhomogeneities is poor, laser can not position at all,
It is unable to reach high-end ultrathin flexible wiring board flexible screen test request.Foam process method is existed using the substance for being also easy to produce bubble
Stomata is formed in slurry, the aperture of stomata is relatively uniform, and after drying then porous ceramics is made in sintered body.But foaming
Suitable for producing the product in hole of holding one's breath, but to ingredient requirement height, and process conditions are not easy to control.Sol-gel method is primarily used to
Micropore ceramics material is manufactured, is especially used for manufacturing microporous membrane.It is the colloidal ion using colloidal sol during gelatinization
Between be interconnected together space net structure, solution is filled in these netted holes, solution can steam in sintering process
Hair, leaves many slight voids, these holes are mostly nanoscale, can prepare the ceramic material of hole very little, but productivity
Low, raw material and article shape are restricted.With the development of 3D printing technique, present porous ceramics can also equally use 3D printing
Prepared by technology, 3D printing technique can improve processing and the preparation efficiency of porous ceramics, pore size and porosity can be by electricity
Brain is controlled, but can't a step prepare the porous ceramics of high intensity, and cost is higher.Discharge plasma sintering
The features such as method is a kind of Fast Sintering technology, has heating rate fast, and sintering time is short, and controllability is strong.
Due to many excellent characteristics, the further development of modern science and technology so that novel possessed by porous ceramics
Porous ceramic film material is concerned by people.Porous ceramics all makes porous in the research and development of energy saving and filtering etc.
Ceramics have broad application prospects as environment-friendly material.
Invention content
The purpose of the present invention is to provide a kind of, and laser positioning, flexible battery plate processing with nanoporous flexible screen are fixed
The preparation of the black ceramic plate of position and production technology.The preparation process can by the reaction method of isostatic cool pressing, high-temperature vacuum furnace
Porous ceramic film material is ensured in the case of multiphase, realizes that its pore structure is evenly distributed, and can be according to the formula tune of powder
The size in whole aperture.
The present invention proposes the preparation method of the ceramic wafer of porous flexible screen test, includes the following steps：
(1) SrCO is weighed3、Y2O3、Co3O4, CuO makes it grind 1~2h after mixing to obtain mixed-powder；
(2) mixed-powder obtained in step (1) is subjected to tabletting, the condition of tabletting is：The pressure of tabletting increases from 0MPa
It is added to 16~20MPa, and often increases by 2~4MPa pressurizes, 1~5min；Using the preparation process of isostatic cool pressing, the first step is
Powder is granulated, and second step is granulated for powder black color masterbatch, and the raw material used is granulated color masterbatch for German pottery black.
(3) mixed-powder after tabletting is sintered in high-temperature vacuum furnace, Sr3YCo is just obtained after sintering4- xCuxO10.5Porous ceramics, wherein sintering temperature be 1150~1250 DEG C, soaking time be 15~for 24 hours.
(4) in order to realize that the brightness of porous ceramics reaches 0.1 grade, flexible circuit board is not interfered with, flexible screen is scraped
Then wound, the powdered frit of 1~2um of plasma spray on its plank are sintered 800 DEG C again, soaking time is 8~12h.
(5) processing on surface is carried out after coming out of the stove using Twp-sided polishing machine.
SrCO of the present invention3、Y2O3、Co3O4, CuO amount press Sr：Y：Co：The molar ratio of Cu is 3:1:(4-x):X's
Ratio weighs, and wherein x values are 0~0.4.
Using a kind of preparation method of porous ceramics proposed by the present invention, following advantageous effect can be obtained：
(1) Sr when the doping of copper is x=0~0.43YCo4-xCuxO10.5It is single-phase；
(2) increase with Cu contents can be realized in the case where ensuring that it is single-phase, lattice constant gradually increases,
Crystal grain is gradually grown up, hole number gradually decreases this regularity variation.
(3) by the sintering processing of vacuum, pore-size distribution very uniformly meets 2~2.5mu of flexible circuitry screen
Description of the drawings
Fig. 1 is the Sr of sintering for 24 hours of the invention at 1200 DEG C3YCo4O10.5The SEM spectrum of porous ceramics；
Specific implementation mode
With reference to embodiment, the present invention will be further described, but the present invention is not limited to following embodiments.
Embodiment 1
Formula：Sr3YCo4O10.5
(1) Sr is pressed：Y：The molar ratio of Co is 3：1：4 weigh SrCO3、Y2O3、Co3O4Make it grind 2h after mixing to obtain
To mixed-powder；
(2) mixed-powder obtained in step (1) is subjected to tabletting, the condition of tabletting is：By the pressure of tablet press machine from
0MPa increases to 20MPa, and often increases 2MPa pressurizes 2min；Using the preparation process of isostatic cool pressing, the first step is powder
It is granulated, second step is granulated for powder black color masterbatch, and the raw material used is granulated color masterbatch for German pottery black.
(3) mixed-powder after tabletting is sintered in high-temperature vacuum furnace, porous ceramics material is just obtained after sintering
Material, wherein sintering temperature is 1200 DEG C, and soaking time is for 24 hours.
(4) in order to realize that the brightness of porous ceramics reaches 0.1 grade, flexible circuit board is not interfered with, flexible screen is scraped
Then wound, the powdered frit of 1~2um of plasma spray on its plank are sintered 800 DEG C again, soaking time is 8~12h.
(5) processing on surface is carried out after coming out of the stove using Twp-sided polishing machine.
The Sr that the present embodiment is prepared3YCo4O10.5Porous ceramic film material, SEM scheme visible Fig. 1.
Embodiment 2
Formula：Sr3YCo3.8Cu0.2O10.5
(1) Sr is pressed：Y：Co：The molar ratio of Cu is 3：1：3.8：0.2 weighs SrCO3、Y2O3、Co3O4, CuO keep its mixing equal
Grinding 1h obtains mixed-powder after even；
(2) by the mixed-powder obtained in step (1) carry out tabletting, a diameter of 2cm, the thickness 4mm of piece, tabletting
Condition is：The pressure of tablet press machine is increased into 16MPa from 0MPa, and often increases 4MPa pressurizes 5min；Using isostatic cool pressing
Preparation process, the first step is that powder is granulated, and second step is the granulation of powder black color masterbatch, and the raw material used is black for German pottery
Color is granulated color masterbatch.
(3) mixed-powder after tabletting is sintered in high-temperature vacuum furnace, is just obtained after sintering
Sr3YCo3.8Cu0.2O10.5Porous ceramic film material, wherein sintering temperature is 1150 DEG C, soaking time 15h.
(4) in order to realize that the brightness of porous ceramics reaches 0.1 grade, flexible circuit board is not interfered with, flexible screen is scraped
Then wound, the powdered frit of 1~2um of plasma spray on its plank are sintered 800 DEG C again, soaking time is 8~12h.
(5) processing on surface is carried out after coming out of the stove using Twp-sided polishing machine.
Embodiment 3
Formula：Sr3YCo3.6Cu0.4O10.5
(1) Sr is pressed：Y：Co：The molar ratio of Cu is 3：1：3.6：0.4 weighs SrCO3、Y2O3、Co3O4, CuO keep its mixing equal
Grinding 2h obtains mixed-powder after even；
(2) by the mixed-powder obtained in step (1) carry out tabletting, a diameter of 2cm, the thickness 4mm of piece, tabletting
Condition is：The pressure of tablet press machine is increased into 18MPa from 0MPa, and often increases 3MPa pressurizes 1min；Using isostatic cool pressing
Preparation process, the first step is that powder is granulated, and second step is the granulation of powder black color masterbatch, and the raw material used is black for German pottery
Color is granulated color masterbatch.
(3) mixed-powder after tabletting is sintered in high-temperature vacuum furnace, is just obtained after sintering
Sr3YCo3.6Cu0.4O10.5Porous ceramics, wherein sintering temperature is 1250 DEG C, soaking time 20h.
(4) in order to realize that the brightness of porous ceramics reaches 0.1 grade, flexible circuit board is not interfered with, flexible screen is scraped
Then wound, the powdered frit of 1~2um of plasma spray on its plank are sintered 800 degree again, soaking time is 8~12h.
(5) processing on surface is carried out after coming out of the stove using Twp-sided polishing machine.
Claims (1)
1. a kind of novel black ceramic plate with the test of nanoporous flexible screen is prepared from, include the following steps：
(1) SrCO is weighed3、Y2O3、Co3O4, CuO makes it grind 1~2h after mixing to obtain mixed-powder；
(2) mixed-powder obtained in step (1) is subjected to tabletting, the condition of tabletting is：The pressure of tabletting increases to from 0MPa
16~20MPa, and often increase by 2~4MPa pressurizes, 1~5min；Using the preparation process of isostatic cool pressing, the first step is powder
It is granulated, second step is granulated for powder black color masterbatch, and the raw material used is granulated color masterbatch for German pottery black.
(3) mixed-powder after tabletting is sintered in high-temperature vacuum furnace, Sr is just obtained after sintering3YCo4-xCuxO10.5It is more
Hole ceramics, wherein sintering temperature be 1150~1250 DEG C, soaking time be 15~for 24 hours.SrCO of the present invention3、Y2O3、
Co3O4, CuO amount press Sr：Y：Co：The molar ratio of Cu is 3:1:(4-x):The ratio of x weighs, and wherein x values are 0~0.4.
(4) in order to realize that the brightness of porous ceramics reaches 0.1 grade, the scratch of flexible circuit board, flexible screen is not interfered with,
Then the powdered frit of 1~2um of plasma spray on its plank is sintered 800 DEG C again, soaking time is 8~12h.
(5) processing on surface is carried out after coming out of the stove using Twp-sided polishing machine.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810102136.1A CN108314427A (en) | 2018-02-01 | 2018-02-01 | It is a kind of with nanoporous flexible screen test black ceramic plate preparation and production technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810102136.1A CN108314427A (en) | 2018-02-01 | 2018-02-01 | It is a kind of with nanoporous flexible screen test black ceramic plate preparation and production technology |
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| Publication Number | Publication Date |
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| CN108314427A true CN108314427A (en) | 2018-07-24 |
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| CN201810102136.1A Pending CN108314427A (en) | 2018-02-01 | 2018-02-01 | It is a kind of with nanoporous flexible screen test black ceramic plate preparation and production technology |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101265387A (en) * | 2008-05-07 | 2008-09-17 | 常州市普兰纳涂料有限公司 | Black general-purpose color masterbatch for automobile repairing paint |
| CN103641465A (en) * | 2013-12-02 | 2014-03-19 | 昆明理工大学 | Preparation method of porous ceramics |
-
2018
- 2018-02-01 CN CN201810102136.1A patent/CN108314427A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101265387A (en) * | 2008-05-07 | 2008-09-17 | 常州市普兰纳涂料有限公司 | Black general-purpose color masterbatch for automobile repairing paint |
| CN103641465A (en) * | 2013-12-02 | 2014-03-19 | 昆明理工大学 | Preparation method of porous ceramics |
Non-Patent Citations (1)
| Title |
|---|
| LI SIWEN ET AL.: "THE ELECTRICAL AND MAGNETIC PROPERTIES OF LANTHANIDE ALKALINE-EARTH TRANSITION-METAL OXIDES", 《MATERIALS RESEARCH BULLETIN》 * |
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Application publication date: 20180724 |