CN1403624A - Electron-beam physical vapor deposition process of preparing composite nano soft magnet and ceramic film - Google Patents
Electron-beam physical vapor deposition process of preparing composite nano soft magnet and ceramic film Download PDFInfo
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- CN1403624A CN1403624A CN 01142122 CN01142122A CN1403624A CN 1403624 A CN1403624 A CN 1403624A CN 01142122 CN01142122 CN 01142122 CN 01142122 A CN01142122 A CN 01142122A CN 1403624 A CN1403624 A CN 1403624A
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Abstract
In the electron-beam physical vapor deposition process, double evaporation source and double electron-beam are used to evaporate metal and ceramic rod and the rotation speed of the substrate and the evaporation rate of both metal and ceramic are regulated to obtain nano composite film with different components. Specially, the process includes setting N6 or W on ferro-silicon alloy and Fe-Ni alloy rod, setting alloy rod and ceramic rod in two crucibles separately, installing substrate, pumping to required vacuum rotating the substrate, heating the substrate, evaporating alloy rod and ceramic rod separately, opening the baffle to deposit and other steps.
Description
The present invention belongs to the soft magnetic material film manufacturing technology for electro beam physics vapour deposition prepares soft magnetism and ceramic nano laminated film.
Iron system [iron silicon alloy (FeSi), iron-nickel alloy (FeNi) etc.] soft magnetic materials has higher saturation magnetization and magnetic permeability, lower coercive force and resistivity; Stupalith (zirconium white (ZrO
2), aluminium sesquioxide (Al
2O
3), aluminium nitride (AlN) etc.) have higher resistivity.The two is compound with the form of nano particle, and control ratio of mixture, can obtain to have the soft magnetic property of high resistance, low-coercivity, become the core material of the various soft magnetic devices of work under the high-frequency alternating magnetic field.
According to searchable data, above-mentioned compound system must adopt the radio-frequency (RF) sputtering method preparation usually.Its reason is because the high resistance of stupalith is difficult to adopt the dc magnetron sputtering method preparation.Generally speaking, the radio frequency sputtering method sedimentation rate is lower, and preparation thick film (several microns) required time is longer.
A kind of electro beam physics vapour deposition of the present invention prepares soft magnetism and ceramic nano laminated film, its objective is:
Utilize the characteristics of electron beam high speed hydatogenesis greater than 1 micron/minute (＞1 μ m/min), adopt two evaporation sources, twin-cathode ray beam technology, by control hydatogenesis processing parameter, realize that high speed deposition prepares the nano composite membrane of soft magnetism and stupalith, and by vacuum heat treatment technology, the final soft magnetic material film that obtains to have high resistance, low-coercivity.
A kind of electro beam physics vapour deposition of the present invention prepares soft magnetism and ceramic nano laminated film, and its technical scheme is as follows:
Adopt two evaporation sources, twin-cathode ray beam technology evaporated metal and ceramic charge bar, by regulating the vaporator rate of substrate rotating speed and metal and pottery, obtain the nano composite membrane of heterogeneity ratio, the material parameter of concrete employing, to reach equipment as follows:
(1), evaporation source material:
Iron silicon alloy (FeSi): silicone content is 3-9% (weight percent)
Iron-nickel alloy (FeNi): nickel content is 60-85% (weight percent)
Because iron, silicon, nickel saturated vapor pressure difference in a vacuum easily produce the composition deviation during electron beam evaporation.For preventing the generation of composition deviation, on iron silicon alloy and iron-nickel alloy charge bar, place the niobium (Nb) or the tungsten (W) of 30-150 gram, because the saturation steam of niobium (Nb), tungsten (W) forces down, the fusing point height, can form " hot pond " on the surface of charge bar, improve the temperature in electron beam irradiation molten bath, make that the composition of iron (Fe)/silicon (Si) in the film, iron (Fe)/nickel (Ni) is consistent with the composition in the charge bar;
(2), electron-beam voltage: 17-19 kilovolt (kV);
(3), electron beam current: 1.0-1.4 pacifies (A);
(4), substrate adopts copper (Cu) or aluminium (AI) or silica glass, this substrate is the plectane thin slice, diameter 340mm, thickness≤1mm, substrate temperature are room temperature～600 ℃;
(5), sedimentation rate: 0.3-1.5 micron/minute (metal);
0.3-1.5 micron/minute (pottery);
(6), iron system/ceramics component ratio: 5: 1-1: adjustable between 5;
(7), thermal treatment temp: 300 ℃-700 ℃, the time: 2-60 branch;
(8), the equipment that uses is electro beam physics vapour deposition equipment;
Its technical process is as follows:
(1), preparation iron silicon alloy (FeSi), iron-nickel alloy (FeNi), zirconium white (ZrO
2), aluminium sesquioxide (Al
2O), aluminium nitride (AlN) charge bar, specification: 50 millimeters of diameters, long 200 millimeters;
(2), with one in the alloy charge bar with ceramic charge bar in one place two crucibles respectively;
(3), installation base plate;
(4), be evacuated to required vacuum tightness [～10
-4Pascal (Pa)];
(5), the required speed of rotation of setting substrate [5～30 rev/mins (rpm)], heated substrates (～600 ℃);
(6), respectively prevapourising alloy charge bar and ceramic charge bar, and regulate electronic beam current, charge bar climbing speed [0.3～1.0 millimeter/minute (mm/min)], control steam output;
(7), draw back baffle plate, carry out hydatogenesis.
A kind of electro beam physics vapour deposition of the present invention prepares soft magnetism and ceramic nano laminated film, and its advantage is:
(1), high speed hydatogenesis;
(2), be not subjected to the restriction of the material category of evaporation source, applicable to the evaporation of any material;
(3), the composite membrane grain-size in nanometer to adjustable between the micron order.
(4), nanocrystal is stable, vacuum heat treatment is after 1 hour (to comprise 600 ℃) below 600 ℃, crystal grain is not found obviously to grow up.
Now details are as follows for embodiment:
Adopt the electro beam physics vapour deposition method to prepare iron (silicon)-zirconium dioxide nano compound film.Iron silicon alloy (FeSi) silicon (Si) content is 6.5% (weight percent), zirconium dioxide (ZrO
2) diameter of charge bar is 50 millimeters, long 200 millimeters; Substrate is copper (Cu); In vacuum tightness is 5 * 10
-4Pascal (Pa), the substrate speed of rotation is 20 rev/mins (rpm), 350 ℃ of substrate temperatures; The charge bar climbing speed is 0.6 millimeter/minute, electron-beam voltage: 18 kilovolts (kV), electron beam current: 1.4 peaces (A), substrate adopt copper (Cu), and this substrate is the plectane thin slice, diameter 340mm, and thickness equals 0.05mm, sedimentation rate: 1 micron/minute (metal); 1.2 micron/minute (pottery), iron system/ceramics component ratio: 3: 1, thermal treatment temp: 300-700 ℃, the time: 60 minutes;
Under the hydatogenesis condition, the grain-size of preparation attitude laminated film is 20-200 nanometer (nm); In follow-up vacuum annealing process, tangible refinement has taken place in crystal grain, having formed is the nano compound film that matrix, nano-magnetic α-iron (silicon) uniform crystal particles distribute with the ceramic membrane, α-iron (silicon) nanocrystalline grain size slightly increases with the rising of annealing temperature, but be no more than 20 nanometers (nm), show good high-temperature stability.The resistivity of laminated film significantly increases with the increase of initial stage annealing temperature, and the preparation attitude is 1212 μ Ω cm (micro-ohm cm), reaches maximum value after 573K (absolute temperature) annealing, is 2279 μ Ω cm (micro-ohm cm).Coercive force is＜2.5 oersteds (Oe), and saturation magnetization is not subjected to the influence of annealing temperature basically.
Claims (1)
1, a kind of electro beam physics vapour deposition prepares soft magnetism and ceramic nano laminated film, it is characterized in that: its technical scheme is as follows:
Adopt two evaporation sources, twin-cathode ray beam technology evaporated metal and ceramic charge bar, by regulating the vaporator rate of substrate rotating speed and metal and pottery, obtain the nano composite membrane of heterogeneity ratio, the material parameter of concrete employing, to reach equipment as follows:
(1), evaporation source material:
Iron silicon alloy (FeSi): silicone content is 3-9% (weight percent)
Iron-nickel alloy (FeNi): nickel content is 60-85% (weight percent)
Because iron, silicon, nickel saturated vapor pressure difference in a vacuum, easily produce the composition deviation during electron beam evaporation, for preventing the generation of composition deviation, on iron silicon alloy and iron-nickel alloy charge bar, place the niobium (Nb) or the tungsten (W) of 30-150 gram, because the saturation steam of niobium (Nb), tungsten (W) forces down, the fusing point height, can form " hot pond " on the surface of charge bar, improve the temperature in electron beam irradiation molten bath, make that the composition of iron (Fe)/silicon (Si) in the film, iron (Fe)/nickel (Ni) is consistent with the composition in the charge bar;
(2), electron-beam voltage: 17-19 kilovolt (kV);
(3), electron beam current: 1.0-1.4 pacifies (A);
(4), substrate adopts copper (Cu) or aluminium (AI) or silica glass, this substrate is the plectane thin slice, diameter 340mm, thickness≤1mm, substrate temperature are room temperature～600 ℃;
(5), sedimentation rate: 0.3-1.5 micron/minute (metal);
0.3-1.5 micron/minute (pottery);
(6), iron system/ceramics component ratio: 5: 1-1: adjustable between 5;
(7), thermal treatment temp: 300 ℃-700 ℃, the time: 2-60 branch;
(8), the equipment that uses is electro beam physics vapour deposition equipment; Its technical process is as follows:
(1), preparation iron silicon alloy (FeSi), iron-nickel alloy (FeNi), zirconium white (ZrO
2), aluminium sesquioxide (Al
2O), aluminium nitride (AlN) charge bar, specification: 50 millimeters of diameters, long 200 millimeters;
(2), with one in the alloy charge bar with ceramic charge bar in one place two crucibles respectively;
(3), installation base plate;
(4), be evacuated to required vacuum tightness [～10
-4Pascal (Pa)];
(5), 5～30 rev/mins of required speed of rotation of setting substrate, heated substrates (～600 ℃);
(6), respectively prevapourising alloy charge bar and ceramic charge bar, and regulate electronic beam current, charge bar climbing speed [0.3～1.0 millimeter/minute (mm/min)], control steam output;
(7), draw back baffle plate, carry out hydatogenesis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01142122 CN1265017C (en) | 2001-09-13 | 2001-09-13 | Electron-beam physical vapor deposition process of preparing composite nano soft magnet and ceramic film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01142122 CN1265017C (en) | 2001-09-13 | 2001-09-13 | Electron-beam physical vapor deposition process of preparing composite nano soft magnet and ceramic film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1403624A true CN1403624A (en) | 2003-03-19 |
| CN1265017C CN1265017C (en) | 2006-07-19 |
Family
ID=4676645
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01142122 Expired - Fee Related CN1265017C (en) | 2001-09-13 | 2001-09-13 | Electron-beam physical vapor deposition process of preparing composite nano soft magnet and ceramic film |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100425573C (en) * | 2004-02-27 | 2008-10-15 | 申佑芝 | Mfg. method of nano ceramics |
| CN108531956A (en) * | 2018-06-26 | 2018-09-14 | 湖州同光金属材料有限公司 | A kind of metal product and preparation method thereof with wearing layer |
-
2001
- 2001-09-13 CN CN 01142122 patent/CN1265017C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100425573C (en) * | 2004-02-27 | 2008-10-15 | 申佑芝 | Mfg. method of nano ceramics |
| CN108531956A (en) * | 2018-06-26 | 2018-09-14 | 湖州同光金属材料有限公司 | A kind of metal product and preparation method thereof with wearing layer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1265017C (en) | 2006-07-19 |
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