CN102603198A - Inorganic electromagnetic wave absorbing material and preparation method thereof - Google Patents
Inorganic electromagnetic wave absorbing material and preparation method thereof Download PDFInfo
- Publication number
- CN102603198A CN102603198A CN201210057821XA CN201210057821A CN102603198A CN 102603198 A CN102603198 A CN 102603198A CN 201210057821X A CN201210057821X A CN 201210057821XA CN 201210057821 A CN201210057821 A CN 201210057821A CN 102603198 A CN102603198 A CN 102603198A
- Authority
- CN
- China
- Prior art keywords
- electromagnetic wave
- inorganic
- powder
- frit
- radio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011358 absorbing material Substances 0.000 title abstract description 19
- 238000002360 preparation method Methods 0.000 title abstract description 14
- 238000000465 moulding Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000006096 absorbing agent Substances 0.000 claims abstract description 13
- 238000005245 sintering Methods 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims description 36
- 239000000463 material Substances 0.000 claims description 35
- 238000010521 absorption reaction Methods 0.000 claims description 25
- 230000002745 absorbent Effects 0.000 claims description 20
- 239000002250 absorbent Substances 0.000 claims description 20
- 235000015895 biscuits Nutrition 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- 238000010304 firing Methods 0.000 claims description 13
- 238000005469 granulation Methods 0.000 claims description 10
- 230000003179 granulation Effects 0.000 claims description 10
- 239000000919 ceramic Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 238000005303 weighing Methods 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 5
- 238000000498 ball milling Methods 0.000 claims description 5
- 239000002041 carbon nanotube Substances 0.000 claims description 5
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 229910000859 α-Fe Inorganic materials 0.000 claims description 5
- 239000011812 mixed powder Substances 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 239000004615 ingredient Substances 0.000 claims description 2
- 238000007873 sieving Methods 0.000 claims description 2
- 238000002791 soaking Methods 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 239000011521 glass Substances 0.000 abstract description 24
- 238000002156 mixing Methods 0.000 abstract description 13
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 description 7
- 239000002131 composite material Substances 0.000 description 5
- 238000000227 grinding Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000001938 differential scanning calorimetry curve Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229940087654 iron carbonyl Drugs 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 229920002449 FKM Polymers 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 229960004424 carbon dioxide Drugs 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 239000000156 glass melt Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002431 hydrogen Chemical group 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910002075 lanthanum strontium manganite Inorganic materials 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000013001 point bending Methods 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- -1 thomel Substances 0.000 description 1
Images
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Hard Magnetic Materials (AREA)
Abstract
The invention discloses a high-strength high-temperature-resistant inorganic electromagnetic wave absorbing material and a preparation method thereof; the formula is characterized in that the raw material components and the mass percentage of each component in the total amount of the raw materials are respectively as follows: glass frit: 20-95%; electromagnetic wave absorber: 5 to 80 percent. The preparation process mainly comprises the following steps: proportioning, mixing, granulating, molding and sintering. The invention overcomes the defect of poor temperature resistance and weather resistance of a high molecular substrate, and has the characteristics of simple process, high strength, good wave absorbing performance, high temperature resistance, good oxidation resistance and low cost.
Description
Technical field
The present invention relates to the research field of electromagnetic wave absorbent material, specifically, relate to inorganic electromagnetic wave absorbent material of a kind of high-strength high temperature-resistant and preparation method thereof.
Background technology
Electromagnetic wave absorbent material has important effect and application prospect at the aspects such as Electro Magnetic Compatibility that solve electromagnetic radiation pollution, anti-EMI and raising electronic machine and equipment.Electromagnetic wave absorbent material normally is made up of polymer organic matrixs such as absorption agent and plastics, rubber, tackiness agent and coating; Absorption agent provides absorption of electromagnetic wave needed electromagnetic performance; The polymer organic matrix is the carrier of absorption agent, is the key component of performances such as decision absorbing material heatproof, weather-proof, anti-environment and moisture-proof heat.Radio-radar absorber is divided into two types by loss mechanism: (1) dielectric absorption agent, like carbon black, barium titanate, thomel, graphite, SiC, charcoal fiber and SiC fiber etc.; (2) magnetic absorption agent is like ferrite, carbonyl iron dust, carbonyl nickel powder, ferrous alloy, nickel-base alloy and other magneticmetal micro mists etc.
Absorbing material must convert microwave energy into heat energy behind the absorption microwave power, heating and temperature rise are inevitable and inevitable (Chinese patent, application numbers: 201010588886.8) to the superpower absorbing material down in working order.Electromagnetic wave absorbent material has vital role in phase pattern that improves array antenna and amplitude directivity characteristics; The resistance toheat of General Purpose Rubber matrix absorbing material generally is not higher than 150 ℃; But the communication system target seeker is when the reentry atmospheric layer; The array antenna position can produce very high temperature (can reach 300 ℃), and common absorbing material can not bear such high temperature, not only can not play the effect that improves electric property; Can endanger safety (Chinese patent, the Granted publication number: CN 101056530 B) of total system owing to burning, charing on the contrary.Therefore, develop high temperature resistant absorbing material and have crucial meaning and application prospect.
(Granted publication number: CN 101056530 B) disclose a kind of is the high temperature resistant electromagnetic wave absorbent material film preparation method of matrix with the viton to Chinese patent, and this material has certain tension set, belongs to flexible absorbing material.Yet, flexible electromagnetic wave absorbent material in actual use, its shape, thickness and size etc. change receiving external force to do the time spent easily, thereby cause its absorbing property to be affected.Chinese patent (application number: 201010588886.8) disclose a kind of LSMO of comprising material and SiO
2The high temperature resistant electromagnetic wave absorbent material of ceramic bonding agent, but this matrix material is a pulverulence, can not directly or after simply processing use as absorbing material.
Summary of the invention
Technical problem to be solved by this invention is that to provide a kind of for the deficiency of improving prior art be the inorganic electromagnetic wave absorbent material of the high-strength high temperature-resistant of matrix with the inorganics, and another object of the present invention provides the preparation method of above-mentioned materials.
Technical scheme of the present invention is: a kind of inorganic electromagnetic wave absorbent material is characterized in that the quality percentage composition of its feed composition and each ingredients constitute raw material total amount is respectively: frit: 20～95%; Radio-radar absorber: 5～80%.
The softening temperature that preferred said frit is is 500～940 ℃ a glass powder; Described radio-radar absorber is a kind of in inorganic dielectric absorption agent or the inorganic magnetic absorption agent at least; Preferred described inorganic dielectric absorption agent is carbon nanotube or silit; The inorganic magnetic absorption agent is carbonyl iron dust, carbonyl nickel powder or W type ferrite.
The mean particle size range of preferred glass material is 0.1～10 micron; The mean particle size range of radio-radar absorber is 0.01～10 micron.
The present invention also provides the preparation method of above-mentioned inorganic electromagnetic wave absorbent material, and its concrete steps are following:
1) batching
According to formulating of recipe, by weight weighing frit and radio-radar absorber;
2) mix
Load weighted frit and radio-radar absorber be put in the ball mill mix, with the powder oven dry that mixes;
3) granulation and moulding
Mixed powder after the oven dry is mixed with sticker, and sieving obtains prilling powder; (according to product size, take by weighing prilling powder, put into mould) moulding on press obtains biscuit;
4) burn till
Adopt ceramic sintering process at the atmosphere kiln roasting biscuit after the moulding, obtain inorganic electromagnetic wave absorbent material.
Preferred described ball mill is a planetary mills, the mill that rolls, stir a kind of in mill or the vibration mill; Ball material weight ratio is 1～5: 1; Rotating speed is 60～450r/min, and the ball milling time is 2～12 hours.
Preferred described sticker is a kind of among PVA, PVB or the CMC; The mass concentration of sticker is 2～10wt%; The weight ratio of mixed powder and sticker is: 95/5～85/15.
Preferred described firing temperature is higher 50～150 ℃ than the softening point temperature of frit; Soaking time is 10～80 minutes under the firing temperature; Atmosphere in the atmosphere furnace is at least a kind of in air, argon gas, nitrogen or the hydrogen.
Beneficial effect:
(1) the present invention is owing to be the matrix of electromagnetic wave absorbent material with the frit; Adopt the ceramic post sintering method to prepare the inorganic electromagnetic wave absorbent material of high-strength high temperature-resistant; Thereby overcome the shortcoming of macromolecule matrix heatproof and weathering resistance difference effectively, had also simultaneously that absorbing property is good, a good in oxidation resistance, low cost and other advantages.
(2) the three-point bending resistance intensity of the prepared inorganic electromagnetic wave absorbent material of high-strength high temperature-resistant of the present invention can satisfy the requirement of later stage mechanical workout to intensity greater than 30MPa.Absorbing material can be under 200～400 ℃ high temperature life-time service.
(3) preparation technology of the present invention is simple to operate, and production cost is low, good reproducibility.
Description of drawings
Fig. 1 is the SEM image of instance 1;
Fig. 2 is the TG-DSC curve of instance 1;
Fig. 3 is the absorbing property curve of instance 1;
Fig. 4 is the absorbing property curve of instance 2;
Fig. 5 is the absorbing property curve of instance 3;
Fig. 6 is the absorbing property curve of instance 4;
Fig. 7 is the absorbing property curve of instance 5.
Embodiment
Embodiment 1:
This instance uses 560g carbonyl iron dust and 440g glass powder in the rolling grinding machine, to mix, and the median size of carbonyl iron dust is 1 micron, and the median size of glass powder is 6 microns; The glass powder softening temperature is 500 ℃; Ball material weight ratio is 5: 1, and the ball milling time is 12 hours, and rotating speed is 80r/min.In the powder of mixing, adding 136g concentration is the CMC mixing of 4wt%, crosses 60 mesh sieves and obtains the granulation powder.According to product size, take by weighing the granulation powder, put into mould, moulding obtains biscuit on press.Adopt ceramic sintering process at the atmosphere kiln roasting biscuit after the moulding, atmosphere is nitrogen, and firing temperature is 550 ℃, burns till insulation and is incubated 40 minutes down.
The intensity of the iron carbonyl/glass composite wave-suction material of the present invention's preparation is 52MPa, satisfies the requirement of later stage mechanical workout; SEM figure sees that Fig. 1, spheroidal particle are carbonyl iron dust, can know that by figure glass melt has wettability preferably to carbonyl iron dust; Fig. 2 is the TG-DSC curve of iron carbonyl/glass absorbing material, can find out, the temperature that absorbing material begins oxidation is 400 ℃, explain absorbing material can be under 200～400 ℃ high temperature life-time service; Shown in the suction ripple curve of Fig. 3, absorbing material has absorbing property preferably at 6～8.5GHz, at 7.2GHz maximum absorption band is arranged, and maximum absorption is-47.5dB.
Embodiment 2:
This instance uses 50g carbon nanotube and 950g glass powder in agitator mill, to mix, and the mean sizes of carbon nanotube is 0.01 micron, and the median size of glass powder is 0.1 micron, and the glass powder softening temperature is 650 ℃, and mixing time is 2 hours, and rotating speed is 450r/min.In the powder of mixing, adding 53g concentration is the PVB mixing of 10wt%, crosses 100 mesh sieves and obtains the granulation powder.According to product size, take by weighing the granulation powder, put into mould, moulding obtains biscuit on press.Adopt ceramic sintering process at the atmosphere kiln roasting biscuit after the moulding, atmosphere is high-purity argon gas, and firing temperature is 730 ℃, and firing temperature is incubated 10 minutes down.
The intensity of the carbon nanotube/glass composite wave-suction material of the present invention's preparation is 42MPa, satisfies the requirement of later stage mechanical workout; Can be known that by Fig. 4 absorbing material has absorbing property preferably at 3.4～4.1GHz, at 3.6GHz maximum absorption band is arranged, maximum absorption is-19.8dB.
Embodiment 3:
This instance uses 300g silit and 700g glass powder in planet mill, to mix, and the median size of silit is 10 microns, and the median size of glass powder is 2 microns; The glass powder softening temperature is 750 ℃; Ball material weight ratio is 2: 1, and rotating speed is 200r/min, and the ball milling time is 6 hours.In the powder of mixing, adding 87g concentration is the PVA mixing of 5wt%, crosses 40 mesh sieves and obtains the granulation powder.According to product size, take by weighing the granulation powder, put into mould, moulding obtains biscuit on press.Adopt ceramic sintering process at globars high temperature kiln roasting the biscuit after the moulding, atmosphere is air, and firing temperature is 850 ℃, and firing temperature is incubated 20 minutes down.
The intensity of the carbonization silicon/glass composite wave-suction material of the present invention's preparation is 45MPa, satisfies the requirement of later stage mechanical workout; Can be known that by Fig. 5 absorbing material has absorbing property preferably at 6.2～7.9GHz, at 6.8GHz maximum absorption band is arranged, maximum absorption is-6.9dB.
Embodiment 4:
This instance uses 650gW type BaZn
1.5Co
0.5Fe
16O
27Ferrite and 350g glass powder mix in the rolling grinding machine, and ferritic median size is 2 microns, and the median size of glass powder is 8 microns, and the glass powder softening temperature is 940 ℃, and ball material weight ratio is 1: 1, and rotating speed is 60r/min, and the ball milling time is 10 hours.In the powder of mixing, adding 87g concentration is the PVA mixing of 5wt%, crosses 40 mesh sieves and obtains prilling powder.According to product size, take by weighing prilling powder, put into mould, moulding obtains biscuit on press.Adopt ceramic sintering process at globars high temperature kiln roasting the biscuit after the moulding, atmosphere is air, and firing temperature is 1090 ℃, and firing temperature is incubated 80 minutes down.
The intensity of the ferrite/glass composite wave-suction material of the present invention's preparation is 62MPa, satisfies the requirement of later stage mechanical workout; Can be known that by Fig. 6 absorbing material has absorbing property preferably at 4.3～12.9GHz, at 11.5GHz maximum absorption band is arranged, maximum absorption is-22.3dB.
Embodiment 5:
This instance uses 800g carbonyl nickel powder and 200g glass powder in the vibrations grinding machine, to mix, and the median size of carbonyl nickel powder is 4 microns, and the median size of glass powder is 10 microns; The glass powder softening temperature is 860 ℃; Ball material weight ratio is 5: 1, and rotating speed is 350r/min, and mixing time is 4 hours.In the powder of mixing, adding 111g concentration is the CMC mixing of 2wt%, crosses 80 mesh sieves and obtains the granulation powder.According to product size, take by weighing the granulation powder, put into mould, moulding obtains biscuit on press.Adopt ceramic sintering process at the atmosphere kiln roasting biscuit after the moulding, atmosphere is hydrogen, and firing temperature is 980 ℃, and firing temperature is incubated 40 minutes down.
The intensity of the nickle carbonoxide/glass composite wave-suction material of the present invention's preparation is 38MPa, satisfies the requirement of later stage mechanical workout; Can be known that by Fig. 7 absorbing material has absorbing property preferably at 2.6～4.4GHz, at 3.1GHz maximum absorption band is arranged, maximum absorption is-11.5dB.
Claims (8)
1. an inorganic electromagnetic wave absorbent material is characterized in that the quality percentage composition of its feed composition and each ingredients constitute raw material total amount is respectively: frit: 20～95%; Radio-radar absorber: 5～80%.
2. inorganic electromagnetic wave absorbent material according to claim 1, the softening temperature that it is characterized in that said frit is 500～940 ℃; Described radio-radar absorber is a kind of in inorganic dielectric absorption agent or the inorganic magnetic absorption agent at least.
3. radio-radar absorber according to claim 2 is characterized in that described inorganic dielectric absorption agent is carbon nanotube or silit; The inorganic magnetic absorption agent is carbonyl iron dust, carbonyl nickel powder or W type ferrite.
4. method according to claim 1, the mean particle size range that it is characterized in that frit is 0.1～10 micron; The mean particle size range of radio-radar absorber is 0.01～10 micron.
5. method for preparing inorganic electromagnetic wave absorbent material as claimed in claim 1, its concrete steps are following:
1) batching
According to formulating of recipe, by weight weighing frit and radio-radar absorber;
2) mix
Load weighted frit and radio-radar absorber be put in the ball mill mix, with the powder oven dry that mixes;
3) granulation and moulding
Mixed powder after the oven dry is mixed with sticker, and sieving obtains prilling powder; Moulding obtains biscuit on press;
4) burn till
Adopt ceramic sintering process at the atmosphere kiln roasting biscuit after the moulding, obtain inorganic electromagnetic wave absorbent material.
6. method according to claim 5 is characterized in that the ball mill described in the step 2 is a planetary mills, the mill that rolls, stirs a kind of in mill or the vibration mill; Ball material weight ratio is 1～5: 1; Rotating speed is 60～450r/min, and the ball milling time is 2～12 hours.
7. method according to claim 5 is characterized in that in the step 3: described sticker is a kind of among PVA, PVB or the CMC; The mass concentration of sticker is 2～10wt%; The weight ratio of mixed powder and sticker is: 95/5～85/15.
8. method according to claim 5 is characterized in that the firing temperature described in the step 4 is higher 50～150 ℃ than the softening point temperature of frit; Soaking time is 10～80 minutes under the firing temperature; Atmosphere in the atmosphere furnace is at least a kind of in air, argon gas, nitrogen or the hydrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210057821XA CN102603198A (en) | 2012-03-07 | 2012-03-07 | Inorganic electromagnetic wave absorbing material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210057821XA CN102603198A (en) | 2012-03-07 | 2012-03-07 | Inorganic electromagnetic wave absorbing material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102603198A true CN102603198A (en) | 2012-07-25 |
Family
ID=46521058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210057821XA Pending CN102603198A (en) | 2012-03-07 | 2012-03-07 | Inorganic electromagnetic wave absorbing material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102603198A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325133A (en) * | 2014-11-14 | 2015-02-04 | 武汉钢铁(集团)公司 | Nano iron powder sintering body containing nano ferroferric oxide and preparation method of nano iron powder sintering body |
| CN104445934A (en) * | 2014-11-11 | 2015-03-25 | 中国人民解放军国防科学技术大学 | High-temperature-resistant wedge-shaped microwave absorbing material and preparation method thereof |
| CN104668550A (en) * | 2014-04-10 | 2015-06-03 | 广东美的厨房电器制造有限公司 | Microwave absorbing material, method for manufacturing same, special container for microwave oven |
| CN105170971A (en) * | 2015-08-25 | 2015-12-23 | 苏州睿智同策广告有限公司 | Preparation method of wave-absorbing material |
| CN106278277A (en) * | 2016-08-21 | 2017-01-04 | 南京洛普科技有限公司 | A kind of sharp cone distal silicon carbide ceramics absorber and preparation method thereof |
| CN108218240A (en) * | 2018-01-29 | 2018-06-29 | 湖南航天磁电有限责任公司 | A kind of unorganic glass base complex ferrite absorbing material and preparation method thereof |
| CN108484155A (en) * | 2018-04-11 | 2018-09-04 | 中南大学 | It is a kind of magnetic to inhale wave brick and preparation method thereof |
| CN110683849A (en) * | 2019-10-11 | 2020-01-14 | 太原科技大学 | Preparation method of ceramic matrix composite wave-absorbing material |
| CN110982421A (en) * | 2019-11-08 | 2020-04-10 | 航天科工武汉磁电有限责任公司 | High-temperature-resistant wave-absorbing coating and preparation method thereof |
| CN111423712A (en) * | 2020-04-03 | 2020-07-17 | 睿惢思工业科技（苏州）有限公司 | Low-frequency wave-absorbing material |
| CN114956827A (en) * | 2022-05-09 | 2022-08-30 | 深圳市宁鹏时代科技有限公司 | Preparation method of ceramic printing material, 3D printing method and ceramic product |
| CN116282195A (en) * | 2023-05-17 | 2023-06-23 | 南京邮电大学 | Double-component ceramic heat-conducting wave-absorbing material for near-earth satellite communication frequency band and preparation thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6312106A (en) * | 1986-07-03 | 1988-01-19 | Toshiba Glass Co Ltd | Wave absorber |
| CN1286474A (en) * | 2000-06-26 | 2001-03-07 | 中国人民解放军空军工程设计研究局 | Foam glass type material obsorbing radar waves |
-
2012
- 2012-03-07 CN CN201210057821XA patent/CN102603198A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6312106A (en) * | 1986-07-03 | 1988-01-19 | Toshiba Glass Co Ltd | Wave absorber |
| CN1286474A (en) * | 2000-06-26 | 2001-03-07 | 中国人民解放军空军工程设计研究局 | Foam glass type material obsorbing radar waves |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104668550A (en) * | 2014-04-10 | 2015-06-03 | 广东美的厨房电器制造有限公司 | Microwave absorbing material, method for manufacturing same, special container for microwave oven |
| CN104668550B (en) * | 2014-04-10 | 2016-11-23 | 广东美的厨房电器制造有限公司 | Microwave absorbing material and preparation method thereof, microwave oven special container |
| CN104445934A (en) * | 2014-11-11 | 2015-03-25 | 中国人民解放军国防科学技术大学 | High-temperature-resistant wedge-shaped microwave absorbing material and preparation method thereof |
| CN104325133B (en) * | 2014-11-14 | 2016-09-21 | 武汉钢铁(集团)公司 | Nanometer iron powder sintered body containing nano ferriferrous oxide and preparation method thereof |
| CN104325133A (en) * | 2014-11-14 | 2015-02-04 | 武汉钢铁(集团)公司 | Nano iron powder sintering body containing nano ferroferric oxide and preparation method of nano iron powder sintering body |
| CN105170971A (en) * | 2015-08-25 | 2015-12-23 | 苏州睿智同策广告有限公司 | Preparation method of wave-absorbing material |
| CN106278277A (en) * | 2016-08-21 | 2017-01-04 | 南京洛普科技有限公司 | A kind of sharp cone distal silicon carbide ceramics absorber and preparation method thereof |
| CN106278277B (en) * | 2016-08-21 | 2019-05-24 | 南京洛普科技有限公司 | A kind of sharp cone distal silicon carbide ceramics absorber and preparation method thereof |
| CN108218240B (en) * | 2018-01-29 | 2020-11-27 | 湖南航天磁电有限责任公司 | Inorganic glass-based composite ferrite wave-absorbing material and preparation method thereof |
| CN108218240A (en) * | 2018-01-29 | 2018-06-29 | 湖南航天磁电有限责任公司 | A kind of unorganic glass base complex ferrite absorbing material and preparation method thereof |
| CN108484155A (en) * | 2018-04-11 | 2018-09-04 | 中南大学 | It is a kind of magnetic to inhale wave brick and preparation method thereof |
| CN108484155B (en) * | 2018-04-11 | 2021-08-27 | 中南大学 | Magnetic wave-absorbing brick and preparation method thereof |
| CN110683849A (en) * | 2019-10-11 | 2020-01-14 | 太原科技大学 | Preparation method of ceramic matrix composite wave-absorbing material |
| CN110982421A (en) * | 2019-11-08 | 2020-04-10 | 航天科工武汉磁电有限责任公司 | High-temperature-resistant wave-absorbing coating and preparation method thereof |
| CN110982421B (en) * | 2019-11-08 | 2021-07-30 | 航天科工武汉磁电有限责任公司 | High-temperature-resistant wave-absorbing coating and preparation method thereof |
| CN111423712A (en) * | 2020-04-03 | 2020-07-17 | 睿惢思工业科技（苏州）有限公司 | Low-frequency wave-absorbing material |
| CN114956827A (en) * | 2022-05-09 | 2022-08-30 | 深圳市宁鹏时代科技有限公司 | Preparation method of ceramic printing material, 3D printing method and ceramic product |
| CN116282195A (en) * | 2023-05-17 | 2023-06-23 | 南京邮电大学 | Double-component ceramic heat-conducting wave-absorbing material for near-earth satellite communication frequency band and preparation thereof |
| CN116282195B (en) * | 2023-05-17 | 2023-07-21 | 南京邮电大学 | Double-component ceramic heat-conducting wave-absorbing material for near-earth satellite communication frequency band and preparation thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102603198A (en) | Inorganic electromagnetic wave absorbing material and preparation method thereof | |
| CN102758164B (en) | Temperature-resistant thermal-spray radar absorbing coating and preparation method of spraying powder thereof | |
| CN101531505B (en) | Anti-radiation ceramics and preparation method thereof | |
| CN100369842C (en) | Preparation method of foam glass | |
| CN102206088B (en) | Infrared radiation coating and preparation method thereof | |
| CN110526702A (en) | A kind of preparation method of the compound manganese-zinc ferrite wideband wave absorbing material of carbon | |
| CN107793128A (en) | Low expansion ceramic blank and its preparation method and application | |
| CN102617127A (en) | Low-temperature sintered lithium-zinc-titanium series microwave dielectric ceramic and preparation method thereof | |
| CN106966599B (en) | A kind of structure gradient tailing microcrystal glass and preparation method thereof using microwave heating preparation | |
| CN107325787A (en) | Hollow carbon nano-particles and wave-absorbing material prepared from same | |
| CN106205935A (en) | A kind of amorphous state soft magnetism composite magnetic powder core and preparation method thereof | |
| CN108610071B (en) | A kind of self-bonding Tercod and its liquid-phase sintering preparation method | |
| CN110148509B (en) | High-reliability FeSiCr integrally-formed inductance particle material and preparation method thereof | |
| CN101767984B (en) | Fused silica ceramic material containing holmium oxide and preparation method thereof | |
| CN111620568B (en) | Glass preparation method and photovoltaic glass plate | |
| CN102898027A (en) | Ceramic powder for electronic component packaging material and production method for ceramic powder | |
| CN115650635B (en) | High-performance rare earth nano paint prepared from polishing powder waste and preparation method thereof | |
| WO2004065489A1 (en) | Composite deelectric material and substrate | |
| CN111269717A (en) | Composite perovskite red fluorescent powder for white light LED and preparation method thereof | |
| CN101591196B (en) | Glaze layer material for broadband ceramic matrix composite material and preparation method thereof | |
| KR20190124653A (en) | Method for manufacturing composite sheet for preventing heat and shielding electromagnetic interference | |
| CN103172955A (en) | Substrate material and preparation method thereof | |
| CN102167624A (en) | Microwave sintering method of coated superfine sulphide selenide cadmium red pigment for ceramic glaze | |
| KR100548737B1 (en) | Manufacturing method of electromagnetic wave absorptive material composed of ferrite composite material | |
| CN101740755B (en) | Production method of lithium cobalt oxide |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120725 |