CN109957375A - A kind of oxidation wave absorbing agent and preparation method thereof - Google Patents
A kind of oxidation wave absorbing agent and preparation method thereof Download PDFInfo
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- CN109957375A CN109957375A CN201711404808.6A CN201711404808A CN109957375A CN 109957375 A CN109957375 A CN 109957375A CN 201711404808 A CN201711404808 A CN 201711404808A CN 109957375 A CN109957375 A CN 109957375A
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- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 45
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 42
- 230000003647 oxidation Effects 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000011259 mixed solution Substances 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 28
- 239000000243 solution Substances 0.000 claims abstract description 12
- 230000001476 alcoholic effect Effects 0.000 claims abstract description 11
- 238000010301 surface-oxidation reaction Methods 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims description 61
- 238000006243 chemical reaction Methods 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 8
- 230000010355 oscillation Effects 0.000 claims description 8
- BDERNNFJNOPAEC-UHFFFAOYSA-N n-propyl alcohol Natural products CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 7
- 230000035484 reaction time Effects 0.000 claims description 7
- -1 iron aluminum silicon Chemical compound 0.000 claims description 3
- 239000011863 silicon-based powder Substances 0.000 claims description 3
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 9
- 239000002184 metal Substances 0.000 abstract description 9
- 230000033228 biological regulation Effects 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 9
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 229960000935 dehydrated alcohol Drugs 0.000 description 7
- 239000000428 dust Substances 0.000 description 5
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000000047 product Substances 0.000 description 3
- 238000002310 reflectometry Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 241000656145 Thyrsites atun Species 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/14—Treatment of metallic powder
- B22F1/145—Chemical treatment, e.g. passivation or decarburisation
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Soft Magnetic Materials (AREA)
- Hard Magnetic Materials (AREA)
Abstract
The present invention provides a kind of oxidation wave absorbing agents and preparation method thereof, and this method includes mixing alcoholic solution with hydrogen peroxide, obtain mixed solution；And wave absorbing agent is added in mixed solution, so that wave absorbing agent is carried out surface oxidation reaction, obtain oxidation wave absorbing agent, wherein the dielectric constant for aoxidizing wave absorbing agent is less than the dielectric constant of wave absorbing agent.The method of the regulation wave absorbing agent dielectric constant provided through the invention, greatly reduces the dielectric constant of magnetic metal wave absorbing agent, and improve the absorbing property of magnetic metal wave absorbing agent.
Description
Technical field
The present invention relates to electro-magnetic wave absorption fields, more particularly, to a kind of oxidation wave absorbing agent and preparation method thereof.
Background technique
Magnetic metallic powder is a kind of common material obsorbing radar waves, due to its two-dimensional structure have big shape respectively to
The opposite sex can break through the Snoek limit to the magnetic conductivity with higher in 2~18GHz frequency range, therefore have preferable electromagnetism
Wave absorbent properties.But magnetic metallic powder is generally prepared by ball-milling method, however the sheet-like magnetic gold of this method preparation
Belonging to wave absorbing agent has biggish microwave permittivity, is far longer than its microwave magnetic permeability, makes its impedance in radar wave frequency range
It matches poor, influences the further promotion of its absorbing property.
Currently, the main method of the dielectric constant of regulation magnetic metal wave absorbing agent is to coat one on magnetic metallic powder surface
Layer insulating shell layer, such as SiO2、ZnO、MnO2、SnO2、Y2O3Deng so that its sheet resistance reduces, so that it is normal to reduce its micro-wave dielectric
Number.But this method has the shortcomings that preparation process is complicated, at high cost.
Summary of the invention
In view of the above problems, the present invention provides a kind of methods of regulation magnetic metal wave absorbing agent dielectric constant.
The present invention provides a kind of preparation methods for aoxidizing wave absorbing agent, comprising: mixes alcoholic solution with hydrogen peroxide, is mixed
Close solution；And wave absorbing agent is added in the mixed solution, so that the wave absorbing agent is carried out surface oxidation reaction, obtains oxidation and inhale
Wave agent,
Wherein, the dielectric constant of the oxidation wave absorbing agent is less than the dielectric constant of the wave absorbing agent.
In above method, the mass fraction of the hydrogen peroxide is 25~35%, the alcoholic solution and the hydrogen peroxide
Volume ratio is 1~10:1~2.
In above method, the mass ratio of the mixed solution and the wave absorbing agent is 40~70:5~15.
In above method, the reaction time of the surface oxidation reaction is 1~2h, the reaction of the surface oxidation reaction
Temperature is room temperature.
In above method, the wave absorbing agent is magnetic metallic powder.
In above method, the magnetic metallic powder includes one of iron aluminum silicon powder, carbonyl iron dust, nickel powder and cobalt powder
Or it is a variety of.
In above method, the alcoholic solution includes one of dehydrated alcohol, propyl alcohol, isopropanol and butanol or a variety of.
In above method, it is added after the wave absorbing agent, is vibrated in the mixed solution.
In above method, the frequency of the oscillation is 3~60Hz.
The present invention also provides a kind of oxidation wave absorbing agents prepared according to above method.
The method of regulation wave absorbing agent dielectric constant provided by the invention, the dielectric for greatly reducing magnetic metal wave absorbing agent are normal
Number, improves the absorbing property of magnetic metal wave absorbing agent, and this method have the advantages that it is simple and easy, at low cost.
Detailed description of the invention
Fig. 1 is the scanning electron microscope (SEM) photograph of the sheet FeSiAl powder in comparative example 1.
Fig. 2A and Fig. 2 B is in the sheet FeSiAl powder and comparative example 1 of the surface low-level oxidation in Examples 1 and 2 respectively
The curve graph of the real and imaginary parts of the dielectric constant of sheet FeSiAl powder.
Fig. 3 A and Fig. 3 B are in the sheet FeSiAl powder and comparative example 1 of the surface low-level oxidation in Examples 1 and 2 respectively
The curve graph of the real and imaginary parts of the magnetic conductivity of sheet FeSiAl powder.
Fig. 4 is with the sheet in the sheet FeSiAl powder of the surface low-level oxidation in Examples 1 and 2 and comparative example 1
FeSiAl powder is the curve graph of the absorbing property of the microwave absorbing coating of wave absorbing agent.
Specific embodiment
The following examples can make those skilled in the art that the present invention be more fully understood, but not limit in any way
The present invention.
The present invention provides a kind of preparation methods for aoxidizing wave absorbing agent (that is, regulating and controlling magnetic metal wave absorbing agent dielectric constant
Method), this method includes mixing alcoholic solution and hydrogen peroxide with volume ratio (1~10:1~2) (mass fraction is 25~35%)
Uniformly, mixed solution is obtained, magnetic metallic powder is then added into the mixed solution, vibrates (frequency of oscillation is 3~60Hz),
So that magnetic metallic powder is fully dispersed in mixed solution, place into later ultrasonic wave separating apparatus (power is 60~90W) or
Surface low-level oxidation is carried out under room temperature in person's oscillator (frequency is 3~60Hz) and reacts 1~2h, after reaction, by product nothing
Water-ethanol washing is centrifuged, after 60~80 DEG C of dry 6~10h with the revolving speed of 200~300r/min, obtains change in dielectric constant
Surface low-level oxidation magnetic metallic powder, wherein magnetic metallic powder includes but is not limited to iron aluminum silicon powder (FeSiAl powder), carbonyl iron
Powder, nickel powder and cobalt powder.
In above method, the mass fraction of hydrogen peroxide is 25~35%, and the volume ratio of dehydrated alcohol and hydrogen peroxide is 1
~10:1~2, if the excessive concentration of hydrogen peroxide, the surface low-level oxidation degree of magnetic metallic powder is too high, limits its suction
Wave performance further increases, and if the concentration of hydrogen peroxide is too low, the surface low-level oxidation degree of magnetic metallic powder is too low,
So that its change in dielectric constant is unobvious, its absorbing property not can effectively improve.
In above method, the reaction time of control surface low-level oxidation reaction is 1~2h, if the reaction time is too long,
So that the degree of oxidation of magnetic metallic powder is too high, even more so that the entirety of powder is oxidized, the magnetic metallic powder is limited
Absorbing property raising；And if the reaction time is too short, the surface oxidation degree of magnetic metallic powder is too low, cannot improve
The dielectric constant of the magnetic metallic powder, it is thus impossible to improve the absorbing property of magnetic metallic powder.
In above method, the mass ratio of mixed solution and magnetic metallic powder is 40~70:5~15, works as magnetic metal
When the content of powder is too low, oxidation reaction degree can not be preferably controlled, may make to react the too fast entirety for making powder by oxygen
Change；When magnetic metallic powder is too high, magnetic metallic powder cannot preferably disperse in mixed solution, and cannot be preferable
It is contacted with mixed solution and is mixed solution oxide and be therefore unfavorable for the surface low-level oxidation of magnetic metallic powder, and then unfavorable
In the reduction of the dielectric constant of magnetic metallic powder.
In above method, alcoholic solution includes one of dehydrated alcohol, propyl alcohol, isopropanol and butanol or a variety of, double
Alcoholic solution is added in oxygen water can effectively slow down reaction rate, so that reaction can be controlled only on the surface of magnetic metallic powder,
If not adding alcoholic solution, reaction of the magnetic metallic powder in hydrogen peroxide will do it too fast and make magnetic metallic powder
Degree of oxidation is too high, and then limits the raising of the absorbing property of the magnetic metallic powder.
Below by taking sheet FeSiAl powder as an example.
Embodiment 1
The hydrogen peroxide that dehydrated alcohol and mass fraction are 30% is uniformly mixed with volume ratio 1:1, obtains mixed solution, so
The mass ratio of addition sheet FeSiAl powder in the backward mixed solution, mixed solution and sheet FeSiAl powder is 60:10, is vibrated,
So that sheet FeSiAl powder is fully dispersed in mixed solution, place into oscillator that surface low-level oxidation is carried out under room temperature is anti-later
1h is answered, after reaction, after product is washed with dehydrated alcohol, is centrifuged, is dry, obtains the sheet FeSiAl of surface low-level oxidation
Powder.
Embodiment 2
It is consistent with the preparation method of embodiment 1, the difference is that the surface low-level oxidation reaction time of embodiment 2 is 2h.
Embodiment 3
It is consistent with the preparation method of embodiment 1, the difference is that the surface low-level oxidation reaction time of embodiment 3 is 1.5h.
Embodiment 4
It is consistent with the preparation method of embodiment 1, the difference is that the mass fraction of hydrogen peroxide is 25% in embodiment 3, and nothing
The volume ratio of water-ethanol and hydrogen peroxide is 3:2.
Embodiment 5
It is consistent with the preparation method of embodiment 1, the difference is that the mass fraction of hydrogen peroxide is 35% in embodiment 3, and nothing
The volume ratio of water-ethanol and hydrogen peroxide is 10:1.
Embodiment 6
It is consistent with the preparation method of embodiment 1, the difference is that the mass fraction of hydrogen peroxide is 25% in embodiment 3, and nothing
The volume ratio of water-ethanol and hydrogen peroxide is 1:2.
Embodiment 7
The hydrogen peroxide that propyl alcohol and mass fraction are 30% is uniformly mixed with volume ratio 1:1, obtains mixed solution, then to
It is added carbonyl iron dust in the mixed solution, the mass ratio of mixed solution and carbonyl iron dust is 40:5, oscillation, so that carbonyl iron dust exists
It is fully dispersed in mixed solution, it is placed into oscillator later and carries out low-level oxidation reaction 1h in surface under room temperature, it after reaction, will
After product is washed with dehydrated alcohol, is centrifuged, is dry, the carbonyl iron dust of surface low-level oxidation is obtained.
Embodiment 8
The hydrogen peroxide that isopropanol and mass fraction are 35% is uniformly mixed with volume ratio 5:1, obtains mixed solution, then
It is added nickel powder into the mixed solution, the mass ratio of mixed solution and nickel powder is 70:15, oscillation, so that nickel powder is in mixed solution
In it is fully dispersed, place into later in oscillator carry out room temperature lower surface low-level oxidation reaction 1h, after reaction, by product nothing
After water-ethanol washing, centrifugation, drying, the nickel powder of surface low-level oxidation is obtained.
Embodiment 9
The hydrogen peroxide that isopropanol and butanol (volume ratio 1:1) and mass fraction are 35% is mixed with volume ratio 8:1
It is even, mixed solution is obtained, is then added cobalt powder into the mixed solution, the mass ratio of mixed solution and cobalt powder is 65:12, vibration
It swings, so that cobalt powder is fully dispersed in mixed solution, is placed into oscillator later and carry out low-level oxidation reaction 1h in surface under room temperature,
After reaction, after product being washed with dehydrated alcohol, be centrifuged, being dry, the cobalt powder of surface low-level oxidation is obtained.
Comparative example 1
The sheet FeSiAl powder of surface low-level oxidation is not carried out.
Pass through the magnetic metallic powder of the surface low-level oxidation into embodiment 9 of method testing example 1 commonly used in the art
And the dielectric constant and magnetic conductivity of the sheet FeSiAl powder in comparative example 1, and prepared with embodiment 1 into embodiment 9
The magnetic metallic powder of surface low-level oxidation and the sheet FeSiAl powder in comparative example 1 are wave absorbing agent (filling rate 80~90%) system
For at microwave absorbing coating, its absorbing property is surveyed by method commonly used in the art, test result is as follows shown in table 1:
Table 1
By the result of embodiment 1,2 and comparative example 1 and by Fig. 2A to Fig. 3 B it is found that in no progress surface low-level oxidation
Before, the real part of permittivity and imaginary part of sheet FeSiAl powder are relatively high (as shown in Figure 2 A and 2 B), at 1GHz frequency
Real part of permittivity and imaginary part are respectively 175 and 46, are far longer than its microwave magnetic permeability (as shown in Figure 3A and Figure 3B), make its
Impedance matching in radar wave frequency range is poor, influences the further promotion of its absorbing property.When by means of the present invention by piece
Shape FeSiAl powder is put into the mixed liquor of dehydrated alcohol and hydrogen peroxide after oscillation a period of time, and micro- oxygen occurs for the surface FeSiAl
Change, apparent decline (as shown in Figure 2 A and 2 B) has occurred in dielectric constant, after oscillation aoxidizes 1h, at 1GHz frequency
Dielectric constant drop to 130 and 35 respectively；After oscillation aoxidizes 2h, the dielectric constant at 1GHz drops to 112 respectively
With 28；This is because the mixed solution of dehydrated alcohol and hydrogen peroxide is capable of the surface of low-level oxidation sheet FeSiAl powder, sheet
FeSiAl powder by surface low-level oxidation processing after, dielectric constant is decreased obviously, and magnetic conductivity variation less (such as Fig. 3 A with
Shown in Fig. 3 B), improve its impedance matching in radar wave frequency range, absorbing property, which has, to be obviously improved.
By the suction wave of 2mm microwave absorbing coating made of the sheet FeSiAl powder of surface low-level oxidation of the embodiment 1 into embodiment 2
Performance be compared with the absorbing property of 2mm microwave absorbing coating made of the sheet FeSiAl powder in comparative example 1 it is found that such as Fig. 4 and
Before upper table 1 is not it is found that carry out surface low-level oxidation, FeSiAl coating reflectivity < -5dB bandwidth is 0.62GHz；The micro- oxygen in surface
After changing 1h, FeSiAl coating reflectivity < -5dB bandwidth is 0.86GHz；After the low-level oxidation 2h of surface, FeSiAl coating reflectivity <-
The bandwidth of 5dB is 1.11GHz；As a result illustrate that surface low-level oxidation can effectively regulate and control magnetic metal wave absorbing agent dielectric constant, into
And improve the absorbing property of sheet FeSiAl powder.
It can in addition, embodiment 3, embodiment 4 to 6 and embodiment 7 to 9 are compared with the result of Examples 1 and 2
Know, the variation of hydrogen peroxide concentration, variation of the time in 1~2h of low-level oxidation reaction, magnetic metallic powder type (such as carbonyl iron
Powder, nickel powder and cobalt powder) variation and mixed solution and magnetic metallic powder variation of the mass ratio in 40~70:5~15,
The dielectric constant of corresponding magnetic metallic powder can be reduced, this is because still ensure that corresponding when changing in the range
Magnetic metallic powder surface low-level oxidation, thus reduce the dielectric constant of corresponding magnetic metallic powder, and then improve
The absorbing property of corresponding magnetic metallic powder.
It will be understood by those skilled in the art that above embodiments are only exemplary embodiments, without departing substantially from spirit of the invention
In the case where range, a variety of variations can be carried out, replaced and changed.
Claims (10)
1. a kind of preparation method for aoxidizing wave absorbing agent characterized by comprising
Alcoholic solution is mixed with hydrogen peroxide, obtains mixed solution；And
Wave absorbing agent is added in the mixed solution, the wave absorbing agent is made to carry out surface oxidation reaction, obtains oxidation wave absorbing agent,
Wherein, the dielectric constant of the oxidation wave absorbing agent is less than the dielectric constant of the wave absorbing agent.
2. preparation method according to claim 1, which is characterized in that the mass fraction of the hydrogen peroxide is 25~35%,
The volume ratio of the alcoholic solution and the hydrogen peroxide is 1~10:1~2.
3. preparation method according to claim 1, which is characterized in that the mass ratio of the mixed solution and the wave absorbing agent
For 40~70:5~15.
4. preparation method according to claim 1, which is characterized in that the reaction time of surface oxidation reaction is 1~
The reaction temperature of 2h, the surface oxidation reaction are room temperature.
5. preparation method according to claim 1, which is characterized in that the wave absorbing agent is magnetic metallic powder.
6. preparation method according to claim 5, which is characterized in that the magnetic metallic powder includes iron aluminum silicon powder, carbonyl
One of base iron powder, nickel powder and cobalt powder are a variety of.
7. preparation method according to claim 1, which is characterized in that the alcoholic solution includes dehydrated alcohol, propyl alcohol, isopropyl
One of pure and mild butanol is a variety of.
8. preparation method according to claim 1, which is characterized in that be added in the mixed solution wave absorbing agent it
Afterwards, it is vibrated.
9. preparation method according to claim 8, which is characterized in that the frequency of the oscillation is 3~60Hz.
10. the oxidation wave absorbing agent of method preparation according to any one of claim 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711404808.6A CN109957375A (en) | 2017-12-22 | 2017-12-22 | A kind of oxidation wave absorbing agent and preparation method thereof |
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| CN201711404808.6A CN109957375A (en) | 2017-12-22 | 2017-12-22 | A kind of oxidation wave absorbing agent and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113321885A (en) * | 2021-05-31 | 2021-08-31 | 广东海粤新材料有限公司 | Preparation method of wave-absorbing material with corrosion resistance |
| CN113856575A (en) * | 2021-11-17 | 2021-12-31 | 攀枝花学院 | Core-shell type magnetic metal micro powder and preparation method and application thereof |
| CN115368133A (en) * | 2022-09-20 | 2022-11-22 | 中国科学院长春应用化学研究所 | Preparation method and application of high-temperature ceramic powder |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113321885A (en) * | 2021-05-31 | 2021-08-31 | 广东海粤新材料有限公司 | Preparation method of wave-absorbing material with corrosion resistance |
| CN113856575A (en) * | 2021-11-17 | 2021-12-31 | 攀枝花学院 | Core-shell type magnetic metal micro powder and preparation method and application thereof |
| CN115368133A (en) * | 2022-09-20 | 2022-11-22 | 中国科学院长春应用化学研究所 | Preparation method and application of high-temperature ceramic powder |
| CN115368133B (en) * | 2022-09-20 | 2023-10-10 | 中国科学院长春应用化学研究所 | Preparation method and application of high-temperature ceramic powder |
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