CN115557789A - Preparation method and application of flexible transition metal oxide lanthanum strontium manganese oxygen ferromagnetism thick film - Google Patents

Preparation method and application of flexible transition metal oxide lanthanum strontium manganese oxygen ferromagnetism thick film Download PDF

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CN115557789A
CN115557789A CN202211310300.0A CN202211310300A CN115557789A CN 115557789 A CN115557789 A CN 115557789A CN 202211310300 A CN202211310300 A CN 202211310300A CN 115557789 A CN115557789 A CN 115557789A
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thick film
metal oxide
powder
mno
flexible
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陈立明
徐立智
周健
丁健翔
孙正明
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Anhui University of Technology AHUT
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Abstract

The invention relates to the technical field of ferromagnetic materials, in particular to a flexible transition metal oxide lanthanum strontium manganese oxygen ferromagnetic thick film, a preparation method and application thereof. The LSMO thick film is also a perovskite type oxide, oxygen ions and transition metal ions interact, so that the electronic behavior of the LSMO thick film has a plurality of characteristics, particularly good conductivity, a new idea can be provided for potential application of a metal oxide electrode, and the LSMO thick film has more possibilities for application due to influences of an electric field, a magnetic field, an interface and the like.

Description

Preparation method and application of flexible transition metal oxide lanthanum strontium manganese oxygen ferromagnetism thick film
Technical Field
The invention relates to the technical field of ferromagnetic materials, in particular to a flexible transition metal oxide lanthanum strontium manganese oxygen ferromagnetic thick film, a preparation method and application thereof.
Background
In this increasingly developing society, computers are rapidly developed, the information transmission speed is faster, the transmission range is wider, and human beings enter the information age, so that the development of the age is further required to be kept up with our devices. Since their advent, semiconductor transistors have been found in a wide variety of industrial products due to their unique characteristics. Televisions, automobiles, air conditioners, and the like, which are commonly used in daily life, particularly, semiconductor devices in memories, are widely used. The conventional large-scale information industry has not met the requirements of the current era, and microelectronic devices have gradually been developed towards miniaturization and integration. However, the semiconductor technology is slowly developed nowadays, so that a new material or a new process is required to meet the requirements of people of the present generation. Transition metal oxides are considered to be a novel material capable of substituting for next-generation semiconductor devices of silicon due to their excellent properties.
The transition metal oxide is a perovskite type oxide, and due to interaction between oxygen ions and transition metal ions, charges, spins, orbitals and lattices are mutually coupled, so that ferromagnetism is induced. In which the spin of an electron has two orientations, up and down, respectively, which can serve as a medium for information storage and processing in ferromagnetic materials. Ferromagnetic materials are also widely concerned due to unique physical properties, so that a new research direction is brought to magnetoelectric coupling and electric field regulation and control magnetization dynamics, and the ferromagnetic materials have important significance in both basic research and practical application.
In view of the above-mentioned drawbacks, the inventors of the present invention have finally obtained the present invention through a long period of research and practice.
Disclosure of Invention
The invention aims to solve the problem of how to obtain a ferromagnetic material with good ferromagnetism and conductivity and excellent performance, and provides a flexible transition metal oxide lanthanum strontium manganese oxygen ferromagnetism thick film, a preparation method and application thereof.
In order to achieve the purpose, the invention discloses a flexible transition metal oxide lanthanum strontium manganese oxygen ironThe magnetic thick film is characterized in that the chemical general formula of the flexible transition ferromagnetic metal oxide lanthanum strontium manganese oxygen ferromagnetic thick film is La 0.7 Sr 0.3 MnO 3 。
The thickness of the flexible transition ferromagnetic metal oxide lanthanum strontium manganese oxygen ferromagnetic thick film is 10-20 μm.
The invention also discloses a preparation method of the flexible transition ferromagnetic metal oxide lanthanum strontium manganese oxygen ferromagnetic thick film, which comprises the following steps:
s1, lanthanum oxide, strontium carbonate and manganese oxide are mixed according to the flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 Weighing a chemical formula of the thick film, mixing the mixed powder, a ball milling medium and alcohol, and performing ball milling;
s2, drying the ball-milled powder obtained in the step S1, pre-sintering and preserving heat on the dried powder, grinding the powder, and drying to obtain a flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 Powder;
s3, mixing the flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 The powder and the organic solvent are fully mixed to obtain the flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 A thick film paste;
s4, removing bubbles from the slurry obtained in the step S3, then casting the slurry into a film, and drying to obtain the flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 And (3) thick film.
The ball milling medium in the step S1 is agate balls, and the diameters of the agate balls are 2-10 mm.
During ball milling in the step S1, the mass ratio of the mixed powder to the ball milling medium to the alcohol is 1.5.
In the step S2, the drying temperature is 60-100 ℃, and the drying time is 6-12 h.
In the step S2, the pre-sintering temperature is 650-1050 ℃, the heat preservation time is 2-8 h, the ball milling time is 24h, and the drying time is 6-12 h.
In the step S3, firstly, the flexible ferromagnetic metal oxide L is put intoa 0.7 Sr 0.3 MnO 3 Mixing the powder with an organic solvent, a dispersing agent and zirconia balls, uniformly mixing for 200-300 min to obtain a primary slurry, mixing with a binder and a homogenizing agent, and uniformly mixing for 200-300 min to obtain a final slurry, wherein the organic solvent is toluene-ethanol, the dispersing agent is triolein, the binder is polyethylene glycol, and the homogenizing agent is butyl phthalate.
And in the step S4, defoaming is carried out through a vacuum defoaming machine, wherein the defoaming time is 25-60 min.
The invention also discloses the application of the flexible transition metal oxide lanthanum strontium manganese oxygen ferromagnetism thick film in a semiconductor device.
Compared with the prior art, the invention has the beneficial effects that: the LSMO thick film prepared by the tape casting method has the advantages of compactness, good ductility and stronger plasticity. The preparation process is simple, and the prepared thick film has good ferromagnetism, a colossal magnetoresistance effect, conductivity and the like due to mutual coupling among spin, charge, a track and crystal lattices in the LSMO, so that the prepared device has the advantages of low energy consumption, high reading speed and long service life. The prepared thick film has good ferromagnetism, a colossal magnetoresistance effect, conductivity and the like due to mutual coupling among spin, charge, tracks and lattices in the LSMO. The flexible ferromagnetic metal oxide LSMO thick film prepared by the invention is also a perovskite type oxide, and the electronic behavior of the flexible ferromagnetic metal oxide LSMO thick film has a plurality of characteristics due to the interaction of oxygen ions and transition metal ions. Particularly, the conductive film has good conductivity, a new idea can be provided for potential application of the metal oxide electrode, and the film can be applied more possibly due to the influence of an electric field, a magnetic field, an interface and the like.
Drawings
FIG. 1 shows a flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 XRD patterns of the thick film at different pre-sintering temperatures;
FIG. 2 shows a flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 SEM images of thick films at different prefiring temperatures and comparative example 3;
FIG. 3 shows flexibilityFerromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 The thick film is subjected to energy spectrum charts of the comparative example 3 at different pre-sintering temperatures;
FIG. 4 shows a flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 Thick film and comparative examples 1,2,3 hysteresis curves at 10K;
FIG. 5 shows a flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 M-T curves for thick films and comparative examples 1, 2.
Detailed Description
The above and further features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.
Example 1
The present embodiment provides a flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 Thick film of, in which, a flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 The preparation method of the thick film comprises the following steps:
s1: preparation of La 0.7 Sr 0.3 MnO 3 And (3) powder.
S2: preparation of La 0.7 Sr 0.3 MnO 3 And (4) thick film.
According to one example of the present invention, the specific operation of S1 is as follows:
s101: according to the chemical general formula, lanthanum oxide (99.99%), strontium carbonate (99%), manganese dioxide (99.8%), barium titanate (99%), titanium dioxide powder (100%) are weighed, and after weighing, the powder is weighed as follows: ball milling media (agate balls): alcohol =1:1.5:1 in a ball milling tank, setting the rotating speed of the planetary ball mill to 400rpm, wherein the ball milling time is 24h. Wherein the diameter of the agate balls is 2-10mm, and the agate balls have different sizes.
S102: after ball milling, the mixture is taken out and placed in an oven to be dried for 9 hours, and the drying temperature is 80 ℃.
S103: pre-sintering the dried mixed powder, putting the powder into an alumina crucible, then putting the alumina crucible into a tubular furnace, introducing oxygen, setting the temperature to be between room temperature and 650 ℃, keeping the temperature for 4 hours, and cooling the powder to the room temperature along with the furnace when the temperature is reduced to 500 ℃, wherein the heating rate is 3 ℃/min and the cooling rate is 5 ℃/min.
S104: pre-burning the La 0.7 Sr 0.3 MnO 3 The powder was taken out and triturated with an agate mortar, following the powder: ball milling media (agate balls): alcohol =1:1.5:1 in a ball mill jar. The rotation speed of the planetary ball mill is set to be 400rpm, wherein the ball milling time is 24h. Wherein the diameter of the used agate balls is 2-10mm, and the agate balls have different sizes.
S105: after ball milling, the mixture is taken out and placed in an oven to be dried for 9 hours, and the drying temperature is 80 ℃. Drying to obtain dried La 0.7 Sr 0.3 MnO 3 And (3) powder.
According to an example of the present invention, the specific operation of S2 is as follows:
s201: mixing the dried powder with an organic solvent toluene-ethanol and a dispersant triolein, adding zirconia balls, and putting into a three-dimensional powder mixer for mixing, wherein the mass of the powder is as follows: the mass of the zirconia balls is as follows: and (3) the mass of the solvent: dispersant mass =18:27:25:2. mixing for 240min to obtain primary slurry
S202: adding polyethylene glycol, phthalic diester and polyvinyl butyl acetal into the primary slurry, wherein the mass ratio of the original powder: polyethylene glycol: phthalic acid diester: polyvinyl butyl acetal =18:10:3:5. then mixing the powder for 360min to obtain the final slurry.
S203: removing bubbles from the slurry by using a vacuum bubble removing machine for 40min, casting the bubble-removed slurry into a film by using a casting machine, adjusting the cutter to be 200 at a casting speed of 20cm/min, and drying at room temperature for 4h to obtain the La 0.7 Sr 0.3 MnO 3 And (3) thick film.
Example 2
The present embodiment provides a flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 Thick film of, in which, a flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 The thick film was prepared as follows:
s1: preparation of La 0.7 Sr 0.3 MnO 3 And (3) powder.
S2: preparation of La 0.7 Sr 0.3 MnO 3 And (4) thick film.
According to one example of the present invention, the specific operation of S1 is as follows:
s101: according to the chemical general formula, lanthanum oxide (99.99%), strontium carbonate (99%), manganese dioxide (99.8%), barium titanate (99%), titanium dioxide powder (100%) are weighed, and then the weight percentages are as follows: ball milling media (agate balls): alcohol =1:1.5:1 in a ball milling tank, setting the rotating speed of the planetary ball mill to 400rpm, wherein the ball milling time is 24h. Wherein the diameter of the agate balls is 2-10mm, and the agate balls have different sizes.
S102: after ball milling, the mixture is taken out and placed in an oven to be dried for 9 hours, and the drying temperature is 80 ℃.
S103: pre-sintering the dried mixed powder, putting the powder into an alumina crucible, then putting the alumina crucible into a tubular furnace, introducing oxygen, setting the temperature to be between room temperature and 750 ℃, keeping the temperature for 4 hours, and cooling the powder to the room temperature along with the furnace when the temperature is reduced to 500 ℃, wherein the heating rate is 3 ℃/min and the cooling rate is 5 ℃/min.
S104: pre-burning the La 0.7 Sr 0.3 MnO 3 The powder was taken out and triturated with an agate mortar, following the powder: ball milling media (agate balls): alcohol =1:1.5:1 in a ball mill jar. The rotation speed of the planetary ball mill is set to be 400rpm, wherein the ball milling time is 24h. Wherein the diameter of the agate balls is 2-10mm, and the agate balls have different sizes.
S105: after ball milling, the mixture is taken out and placed in an oven to be dried for 9 hours, and the drying temperature is 80 ℃. Drying to obtain dried La 0.7 Sr 0.3 MnO 3 And (3) powder.
According to an example of the present invention, the specific operation of S2 is as follows:
s201: mixing the dried powder with an organic solvent toluene-ethanol and a dispersant triolein, adding zirconia balls, and putting into a three-dimensional powder mixer for mixing, wherein the powder mass is as follows: the mass of the zirconia balls is as follows: and (3) the mass of the solvent: dispersant mass =18:27:25:2. mixing for 240min to obtain primary slurry
S202: adding polyethylene glycol, diester phthalate and polyvinyl butyl acetal into the primary slurry, wherein the mass ratio of the original powder: polyethylene glycol: phthalic acid diester: polyvinyl butyl acetal =18:10:3:5. then mixing the powder for 360min to obtain the final slurry.
S203: carrying out defoaming treatment on the slurry by using a vacuum defoaming machine for 40min, carrying out tape casting on the defoamed slurry to form a film by using a tape casting machine, adjusting the tape casting speed to be 200, and drying at room temperature for 4h to obtain the La 0.7 Sr 0.3 MnO 3 And (3) thick film.
Example 3
The present embodiment provides a flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 Thick film of, in which, a flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 The thick film was prepared as follows:
s1: preparation of La 0.7 Sr 0.3 MnO 3 And (3) powder.
S2: preparation of La 0.7 Sr 0.3 MnO 3 And (3) thick film.
According to an example of the present invention, the specific operation of S1 is as follows:
s101: according to the chemical general formula, lanthanum oxide (99.99%), strontium carbonate (99%), manganese dioxide (99.8%), barium titanate (99%), titanium dioxide powder (100%) are weighed, and then the weight percentages are as follows: ball milling media (agate balls): alcohol =1:1.5:1 in a ball milling tank, setting the rotating speed of a planetary ball mill to 400rpm, wherein the ball milling time is 24h. Wherein the diameter of the agate balls is 2-10mm, and the agate balls have different sizes.
S102: after ball milling, the mixture is taken out and placed in an oven to be dried for 9 hours, and the drying temperature is 80 ℃.
S103: pre-burning the dried mixed powder, putting the mixed powder into an alumina crucible, then putting the alumina crucible into a tubular furnace, introducing oxygen, setting the temperature to be between room temperature and 850 ℃, keeping the temperature for 4 hours, and cooling the mixed powder to the room temperature along with the furnace when the temperature is reduced to 500 ℃, wherein the heating rate is 3 ℃/min and the cooling rate is 5 ℃/min.
S104: pre-burning the La 0.7 Sr 0.3 MnO 3 The powder was taken out and triturated with an agate mortar, following the powder: ball milling media (agate balls): alcohol =1:1.5:1 in a ball mill jar. The rotation speed of the planetary ball mill is set to be 400rpm, wherein the ball milling time is 24h. Wherein the diameter of the used agate balls is 2-10mm, and the agate balls have different sizes.
S105: after ball milling, the mixture is taken out and placed in an oven to be dried for 9 hours, and the drying temperature is 80 ℃. Drying to obtain dried La 0.7 Sr 0.3 MnO 3 And (3) powder.
According to an example of the present invention, the specific operation of S2 is as follows:
s201: mixing the dried powder with an organic solvent toluene-ethanol and a dispersant triolein, adding zirconia balls, and putting into a three-dimensional powder mixer for mixing, wherein the mass of the powder is as follows: the mass of the zirconia balls is as follows: and (3) the mass of the solvent: dispersant mass =18:27:25:2. mixing for 240min to obtain primary slurry
S202: adding polyethylene glycol, phthalic diester and polyvinyl butyl acetal into the primary slurry, wherein the mass ratio of the original powder: polyethylene glycol: phthalic acid diester: polyvinyl butyl acetal =18:10:3:5. then mixing the powder for 360min to obtain the final slurry.
S203: carrying out defoaming treatment on the slurry by using a vacuum defoaming machine for 40min, carrying out tape casting on the defoamed slurry to form a film by using a tape casting machine, adjusting the tape casting speed to be 200, and drying at room temperature for 4h to obtain the La 0.7 Sr 0.3 MnO 3 And (4) thick film.
Example 4
The present embodiment provides a flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 Thick film of, in which, a flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 The preparation method of the thick film comprises the following steps:
s1: preparation of La 0.7 Sr 0.3 MnO 3 And (3) powder.
S2: preparation of La 0.7 Sr 0.3 MnO 3 And (3) thick film.
According to one example of the present invention, the specific operation of S1 is as follows:
s101: according to the chemical general formula, lanthanum oxide (99.99%), strontium carbonate (99%), manganese dioxide (99.8%), barium titanate (99%), titanium dioxide powder (100%) are weighed, and after weighing, the powder is weighed as follows: ball milling media (agate balls): alcohol =1:1.5:1 in a ball milling tank, setting the rotating speed of the planetary ball mill to 400rpm, wherein the ball milling time is 24h. Wherein the diameter of the agate balls is 2-10mm, and the agate balls have different sizes.
S102: after ball milling, the mixture is taken out and placed in an oven to be dried for 9 hours, and the drying temperature is 80 ℃.
S103: pre-burning the dried mixed powder, putting the mixed powder into an alumina crucible, then putting the alumina crucible into a tubular furnace, introducing oxygen, setting the temperature to be between room temperature and 950 ℃, keeping the temperature for 4 hours, and cooling the mixed powder to the room temperature along with the furnace when the temperature is reduced to 500 ℃, wherein the heating rate is 3 ℃/min and the cooling rate is 5 ℃/min.
S104: pre-burning the La 0.7 Sr 0.3 MnO 3 The powder was taken out and triturated with an agate mortar, following the powder: ball milling media (agate balls): alcohol =1:1.5:1 in a ball mill jar. The rotation speed of the planetary ball mill is set to be 400rpm, wherein the ball milling time is 24h. Wherein the diameter of the agate balls is 2-10mm, and the agate balls have different sizes.
S105: after ball milling, the mixture is taken out and placed in an oven to be dried for 9 hours, and the drying temperature is 80 ℃. Drying to obtain dried La 0.7 Sr 0.3 MnO 3 And (3) powder.
According to an example of the present invention, the specific operation of S2 is as follows:
s201: mixing the dried powder with an organic solvent toluene-ethanol and a dispersant triolein, adding zirconia balls, and putting into a three-dimensional powder mixer for mixing, wherein the mass of the powder is as follows: the mass of the zirconia ball is as follows: and (3) the mass of the solvent: dispersant mass =18:27:25:2. mixing for 240min to obtain primary slurry
S202: adding polyethylene glycol, phthalic diester and polyvinyl butyl acetal into the primary slurry, wherein the mass ratio of the original powder: polyethylene glycol: phthalic acid diester: polyvinyl butyl acetal =18:10:3:5. then mixing the powder for 360min to obtain the final slurry.
S203: removing bubbles from the slurry by using a vacuum bubble removing machine for 40min, casting the bubble-removed slurry into a film by using a casting machine, adjusting the cutter to be 200 at a casting speed of 20cm/min, and drying at room temperature for 4h to obtain the La 0.7 Sr 0.3 MnO 3 And (3) thick film.
Example 5
The present embodiment provides a flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 Thick film of, in which, a flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 The thick film was prepared as follows:
s1: preparation of La 0.7 Sr 0.3 MnO 3 And (3) powder.
S2: preparation of La 0.7 Sr 0.3 MnO 3 And (4) thick film.
According to an example of the present invention, the specific operation of S1 is as follows:
s101: according to the chemical general formula, lanthanum oxide (99.99%), strontium carbonate (99%), manganese dioxide (99.8%), barium titanate (99%), titanium dioxide powder (100%) are weighed, and after weighing, the powder is weighed as follows: ball milling media (agate balls): alcohol =1:1.5:1 in a ball milling tank, setting the rotating speed of the planetary ball mill to 400rpm, wherein the ball milling time is 24h. Wherein the diameter of the agate balls is 2-10mm, and the agate balls have different sizes.
S102: after ball milling, the mixture is taken out and placed in an oven to be dried for 9 hours, and the drying temperature is 80 ℃.
S103: and pre-sintering the dried mixed powder, putting the powder into an alumina crucible, putting the alumina crucible into a tubular furnace, introducing oxygen, setting the temperature to be between room temperature and 1050 ℃, keeping the temperature for 4 hours, and cooling the powder to the room temperature along with the furnace when the temperature is reduced to 500 ℃, wherein the heating rate is 3 ℃/min and the cooling rate is 5 ℃/min.
S104: pre-burning the La 0.7 Sr 0.3 MnO 3 The powder was taken out and triturated with an agate mortar, following the powder: ball milling media (agate balls): alcohol =1:1.5:1 in a ball mill jar. The rotation speed of the planetary ball mill is set to be 400rpm, wherein the ball milling time is 24h. Wherein the diameter of the agate balls is 2-10mm, and the agate balls have different sizes.
S105: after ball milling, the mixture is taken out and placed in an oven to be dried for 9 hours, and the drying temperature is 80 ℃. Drying to obtain dried La 0.7 Sr 0.3 MnO 3 And (3) powder.
According to an example of the present invention, the specific operation of S2 is as follows:
s201: mixing the dried powder with an organic solvent toluene-ethanol and a dispersant triolein, adding zirconia balls, and putting into a three-dimensional powder mixer for mixing, wherein the powder mass is as follows: the mass of the zirconia ball is as follows: and (3) the mass of the solvent: dispersant mass =18:27:25:2. mixing for 240min to obtain primary slurry
S202: adding polyethylene glycol, phthalic diester and polyvinyl butyl acetal into the primary slurry, wherein the mass ratio of the original powder: polyethylene glycol: phthalic acid diester: polyvinyl butyl acetal =18:10:3:5. then mixing the powder for 360min to obtain the final slurry.
S203: carrying out defoaming treatment on the slurry by using a vacuum defoaming machine for 40min, carrying out tape casting on the defoamed slurry to form a film by using a tape casting machine, adjusting the tape casting speed to be 200, and drying at room temperature for 4h to obtain the La 0.7 Sr 0.3 MnO 3 And (4) thick film.
Comparative example 1
The present embodiment provides a ferromagnetic metal oxide La 0.5 Sr 0.5 MnO 3 Thick film of ferromagnetic metal oxide La 0.5 Sr 0.5 MnO 3 Preparation of thick filmsThe preparation method comprises the following steps:
s1: preparation of La 0.5 Sr 0.5 MnO 3 And (3) powder.
S2: preparation of La 0.5 Sr 0.5 MnO 3 And (4) thick film.
According to an example of the present invention, the specific operation of S1 is as follows:
s101: according to the chemical general formula, lanthanum oxide (99.99%), strontium carbonate (99%), manganese dioxide (99.8%), barium titanate (99%), titanium dioxide powder (100%) are weighed, and then the weight percentages are as follows: ball milling media (agate balls): alcohol =1:1.5:1 in a ball milling tank, setting the rotating speed of the planetary ball mill to 400rpm, wherein the ball milling time is 24h. Wherein the diameter of the agate balls is 2-10mm, and the agate balls have different sizes.
S102: after ball milling, the mixture is taken out and placed in an oven to be dried for 9 hours, and the drying temperature is 80 ℃.
S103: pre-sintering the dried mixed powder, putting the powder into an alumina crucible, then putting the alumina crucible into a tubular furnace, introducing oxygen, setting the temperature to be between room temperature and 850 ℃, keeping the temperature for 4 hours, and cooling the powder to the room temperature along with the furnace when the temperature is reduced to 500 ℃, wherein the heating rate is 3 ℃/min and the cooling rate is 5 ℃/min.
S104: pre-burning the La 0.5 Sr 0.5 MnO 3 The powder was taken out and triturated with an agate mortar, following the powder: ball milling media (agate balls): alcohol =1:1.5:1 in a ball mill jar. The rotation speed of the planetary ball mill is set to be 400rpm, wherein the ball milling time is 24h. Wherein the diameter of the used agate balls is 2-10mm, and the agate balls have different sizes.
S105: after ball milling, the mixture is taken out and placed in an oven to be dried for 9 hours, and the drying temperature is 80 ℃. Drying to obtain dried La 0.5 Sr 0.5 MnO 3 And (3) powder.
According to an example of the present invention, the specific operation of S2 is as follows:
s201: mixing the dried powder with an organic solvent toluene-ethanol and a dispersant triolein, adding zirconia balls, and putting into a three-dimensional powder mixer for mixing, wherein the powder mass is as follows: the mass of the zirconia balls is as follows: and (3) the mass of the solvent: dispersant mass =18:27:25:2. mixing for 240min to obtain primary slurry
S202: adding polyethylene glycol, phthalic diester and polyvinyl butyl acetal into the primary slurry, wherein the mass ratio of the original powder: polyethylene glycol: phthalic acid diester: polyvinyl butyl acetal =18:10:3:5. then mixing the powder for 360min to obtain the final slurry.
S203: removing bubbles from the slurry by using a vacuum bubble removing machine for 40min, casting the bubble-removed slurry into a film by using a casting machine, adjusting the cutter to be 200 at a casting speed of 20cm/min, and drying for 4h to obtain the La 0.5 Sr 0.5 MnO 3 And (3) thick film.
Comparative example 2
The present embodiment provides a flexible ferromagnetic metal oxide La 0.2 Sr 0.8 MnO 3 Thick film of ferromagnetic metal oxide La 0.2 Sr 0.8 MnO 3 The preparation method of the thick film comprises the following steps:
s1: preparation of La 0.2 Sr 0.8 MnO 3 And (3) powder.
S2: preparation of La 0.2 Sr 0.8 MnO 3 And (3) thick film.
According to one example of the present invention, the specific operation of S1 is as follows:
s101: according to the chemical general formula, lanthanum oxide (99.99%), strontium carbonate (99%), manganese dioxide (99.8%), barium titanate (99%), titanium dioxide powder (100%) are weighed, and after weighing, the powder is weighed as follows: ball milling media (agate balls): alcohol =1:1.5:1 in a ball milling tank, setting the rotating speed of a planetary ball mill to 400rpm, wherein the ball milling time is 24h. Wherein the diameter of the agate balls is 2-10mm, and the agate balls have different sizes.
S102: after ball milling, the mixture is taken out and placed in an oven to be dried for 9 hours, and the drying temperature is 80 ℃.
S103: pre-sintering the dried mixed powder, putting the powder into an alumina crucible, then putting the alumina crucible into a tubular furnace, introducing oxygen, setting the temperature to be between room temperature and 850 ℃, keeping the temperature for 4 hours, and cooling the powder to the room temperature along with the furnace when the temperature is reduced to 500 ℃, wherein the heating rate is 3 ℃/min and the cooling rate is 5 ℃/min.
S104: pre-burning the La 0.2 Sr 0.8 MnO 3 The powder was taken out and triturated with an agate mortar, following the powder: ball milling media (agate balls): alcohol =1:1.5:1 in a ball mill jar. The rotation speed of the planetary ball mill is set to be 400rpm, wherein the ball milling time is 24h. Wherein the diameter of the agate balls is 2-10mm, and the agate balls have different sizes.
S105: after ball milling, the mixture is taken out and placed in an oven to be dried for 9 hours, and the drying temperature is 80 ℃. Drying to obtain dried La 0.2 Sr 0.8 MnO 3 And (3) powder.
According to an example of the present invention, the specific operation of S2 is as follows:
s201: mixing the dried powder with an organic solvent toluene-ethanol and a dispersant triolein, adding zirconia balls, and putting into a three-dimensional powder mixer for mixing, wherein the powder mass is as follows: the mass of the zirconia balls is as follows: and (3) the mass of the solvent: dispersant mass =18:27:25:2. mixing for 240min to obtain primary slurry
S202: adding polyethylene glycol, phthalic diester and polyvinyl butyl acetal into the primary slurry, wherein the mass ratio of the original powder: polyethylene glycol: phthalic acid diester: polyvinyl butyl acetal =18:10:3:5. then mixing the powder for 360min to obtain the final slurry.
S203: carrying out defoaming treatment on the slurry by using a vacuum defoaming machine for 40min, carrying out tape casting on the defoamed slurry to form a film by using a tape casting machine, adjusting the cutter to be 200, carrying out tape casting at the tape casting speed of 20cm/min, and drying for 12h to obtain La 0.2 Sr 0.8 MnO 3 And (4) thick film.
Comparative example 3
This comparative example provides a ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 Ceramic, wherein the ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 Ceramic materialThe preparation method comprises the following steps:
s1: la prepared in the above example 1 0.7 Sr 0.3 MnO 3 The thick film is cut into 5 x 5mm in size, and the method is characterized in that the substrate is a zirconia plate, and the film can be pressed on the substrate in a hot pressing mode, wherein the pressure is 80MPa, the time is 40min, and the temperature is 65 ℃.
S2: and (3) putting the pressed film in a tube furnace, introducing oxygen, and keeping the temperature at 600 ℃ for 300min at a heating rate of 3 ℃/min and a cooling rate of 5 ℃/min.
S3: and (3) sintering the film after the glue is discharged in a tube furnace under the condition of introducing oxygen, setting the temperature to be from room temperature to 1200 ℃, setting the temperature rising speed to be 3 ℃/min, the heat preservation time to be 500min, setting the temperature reduction speed to be 5 ℃/min, and cooling to the room temperature along with the furnace when the temperature is reduced to 500 ℃. Obtaining the flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 And (6) ceramic plates.
FIG. 1 shows a flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 XRD patterns of the thick film at different pre-sintering temperatures are shown in figure 1, and the flexible ferromagnetic metal oxide La prepared by the method is 0.7 Sr 0.3 MnO 3 The thick film is a perovskite type oxide and no significant impurity is generated.
FIG. 2 shows a flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 Thick film and comparative La at different pre-firing temperatures 0.7 Sr 0.3 MnO 3 SEM image of the ceramic wafer, as can be seen from FIG. 2, the flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 When the pre-sintering temperature of the thick film is continuously increased, the particles are more closely arranged, and the compactness is good. The morphology was best at 850 ℃, after which the sample appeared porous and less dense with increasing temperature. And La 0.7 Sr 0.3 MnO 3 The SEM of the ceramic is formed by thick film sintering at 850 deg.C. The ceramic sheet has good compactness, thereby showing that the flexible ferromagnetic metal oxide La prepared by the invention 0.7 Sr 0.3 MnO 3 The thick film has good processability, and good moldability.
FIG. 3 (a) - (e)Is a flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 Thick films at different prefiring temperatures and FIG. 3 (f) comparative example La 0.7 Sr 0.3 MnO 3 The energy spectrum diagram of the ceramic chip is undistorted, and the data is reliable.
As shown in FIG. 4 and FIG. 5, the flexible thick film of ferromagnetic metal oxide LSMO prepared by the present invention has good ferromagnetism and good stability in a wide temperature range. It can also be seen that it exhibits a significant hysteresis curve at ambient temperature. Comparative examples 1,2 thick films of different compositions of LSMO, it is evident that the thick films prepared in example 3 exhibit better ferromagnetic properties in comparison to the hysteresis curves of comparative examples 1,2, while the ceramics prepared in example 3 also exhibit good ferromagnetic properties. From another aspect, the ferromagnetic metal oxide La prepared by the present invention is also embodied 0.7 Sr 0.3 MnO 3 The thick film has strong processability and certain flexibility. As can be seen from FIG. 5, example 3 has a higher Curie temperature, illustrating the flexible ferromagnetic metal oxide La prepared in accordance with the present invention 0.7 Sr 0.3 MnO 3 The thick film has better ferromagnetism, and simultaneously embodies the flexible ferromagnetic metal oxide La prepared by the invention 0.7 Sr 0.3 MnO 3 The thick film has good research prospect, and provides a new idea for the preparation and research of ferromagnetic materials.
The foregoing is merely a preferred embodiment of the invention, which is intended to be illustrative and not limiting. It will be understood by those skilled in the art that various changes, modifications and equivalents may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. The flexible transition metal oxide lanthanum strontium manganese oxygen ferromagnetism thick film is characterized in that the chemical general formula of the flexible transition metal oxide lanthanum strontium manganese oxygen ferromagnetism thick film is La 0.7 Sr 0.3 MnO 3 。
2. The flexible transition metal oxide lanthanum strontium manganese oxygen ferromagnetic thick film of claim 1, wherein the thickness of the flexible transition ferromagnetic thick film is 10-20 μ ι η.
3. A method for preparing a flexible thick film of transition metal oxide lanthanum strontium manganese oxygen ferromagnetism as claimed in claim 1 or 2, characterized by comprising the following steps:
s1, lanthanum oxide, strontium carbonate and manganese oxide are mixed according to the flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 Weighing a chemical formula of the thick film, mixing the mixed powder, a ball milling medium and alcohol, and performing ball milling;
s2, drying the ball-milled powder obtained in the step S1, pre-burning and preserving heat the dried powder, grinding the powder, and drying to obtain the flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 Powder;
s3, mixing the flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 Fully and uniformly mixing the powder with an organic solvent to obtain the flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 A thick film paste;
s4, removing bubbles from the slurry obtained in the step S3, then casting the slurry into a film, and drying to obtain the flexible ferromagnetic metal oxide La 0.7 Sr 0.3 MnO 3 And (4) thick film.
4. The method according to claim 3, wherein the ball-milling medium in step S1 is agate balls, and the diameter of the agate balls is 2-10 mm.
5. The method for preparing a flexible thick film of transition metal oxide lanthanum strontium manganese oxygen ferromagnetism according to claim 3, wherein during ball milling in the step S1, the mass ratio of the mixed powder, the ball milling medium and the alcohol is 1.5.
6. The method according to claim 3, wherein the drying temperature in step S2 is 60-100 ℃ and the drying time is 6-12 h.
7. The method according to claim 3, wherein the pre-sintering temperature in step S2 is 650-1050 ℃, the holding time is 2-8 h, the ball milling time is 24h, and the drying time is 6-12 h.
8. The method according to claim 3, wherein in step S3, the flexible thick film of lanthanum strontium manganese oxygen ferromagnetic is first prepared by 0.7 Sr 0.3 MnO 3 Mixing the powder with an organic solvent, a dispersing agent and zirconia balls, uniformly mixing for 200-300 min to obtain a primary slurry, then mixing with a binder and a homogenizing agent, and uniformly mixing for 200-300 min to obtain a final slurry, wherein the organic solvent is toluene-ethanol, the dispersing agent is triolein, the binder is polyethylene glycol, and the homogenizing agent is butyl phthalate.
9. The method according to claim 3, wherein the defoaming in step S4 is performed by a vacuum defoaming machine for 25-60 min.
10. Use of a flexible thick film of transition metal oxide lanthanum strontium manganese oxygen ferromagnetism as defined in claim 1 or 2 in a semiconductor device.
CN202211310300.0A 2022-10-25 2022-10-25 Preparation method and application of flexible transition metal oxide lanthanum strontium manganese oxygen ferromagnetism thick film Pending CN115557789A (en)

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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040021397A1 (en) * 2002-02-04 2004-02-05 Oakland University Magnetoelectric effects of magnetostrictive and piezoelectric layered composites
CN1872794A (en) * 2006-06-27 2006-12-06 哈尔滨工业大学 Improved coating method for preparing membrane of oxide ceramics
JP2009164496A (en) * 2008-01-10 2009-07-23 Nagoya Institute Of Technology Conductive material, and paste for thick film resistor and manufacturing method thereof
CN101734915A (en) * 2008-11-25 2010-06-16 北京有色金属研究总院 Lanthanum strontium manganate (LSMO) -based intelligent thermal-radiating material and preparation method thereof
CN102509763A (en) * 2011-11-02 2012-06-20 西南交通大学 Method for preparing high-temperature superconducting coating conductor LaSrMnO3 buffering layer film
CN105732034A (en) * 2016-02-22 2016-07-06 电子科技大学 Ultra-low-specific-resistance low-B-value NTC thermosensitive resistance material and preparation method thereof
CN106242567A (en) * 2016-07-13 2016-12-21 西安科技大学 A kind of lanthanum molybdate-based thick-film material of high oxide ion conduction and preparation method thereof
CN107141021A (en) * 2016-03-01 2017-09-08 中国人民解放军军械工程学院 A kind of X-band resistive film type high temperature Meta Materials wave-absorber
CN109273255A (en) * 2018-09-18 2019-01-25 陕西科技大学 A kind of LSMO film of high-ferromagnetic and preparation method thereof
CN110981527A (en) * 2019-11-28 2020-04-10 中国矿业大学(北京) Flexible ceramic current-collecting layer film green body
CN113061313A (en) * 2021-03-31 2021-07-02 华中科技大学 Flexible perovskite scintillator thick film and preparation method thereof
CN113150554A (en) * 2021-05-25 2021-07-23 南京邮电大学 PDMS-based flexible energy storage composite membrane and preparation method thereof

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040021397A1 (en) * 2002-02-04 2004-02-05 Oakland University Magnetoelectric effects of magnetostrictive and piezoelectric layered composites
CN1872794A (en) * 2006-06-27 2006-12-06 哈尔滨工业大学 Improved coating method for preparing membrane of oxide ceramics
JP2009164496A (en) * 2008-01-10 2009-07-23 Nagoya Institute Of Technology Conductive material, and paste for thick film resistor and manufacturing method thereof
CN101734915A (en) * 2008-11-25 2010-06-16 北京有色金属研究总院 Lanthanum strontium manganate (LSMO) -based intelligent thermal-radiating material and preparation method thereof
CN102509763A (en) * 2011-11-02 2012-06-20 西南交通大学 Method for preparing high-temperature superconducting coating conductor LaSrMnO3 buffering layer film
CN105732034A (en) * 2016-02-22 2016-07-06 电子科技大学 Ultra-low-specific-resistance low-B-value NTC thermosensitive resistance material and preparation method thereof
CN107141021A (en) * 2016-03-01 2017-09-08 中国人民解放军军械工程学院 A kind of X-band resistive film type high temperature Meta Materials wave-absorber
CN106242567A (en) * 2016-07-13 2016-12-21 西安科技大学 A kind of lanthanum molybdate-based thick-film material of high oxide ion conduction and preparation method thereof
CN109273255A (en) * 2018-09-18 2019-01-25 陕西科技大学 A kind of LSMO film of high-ferromagnetic and preparation method thereof
CN110981527A (en) * 2019-11-28 2020-04-10 中国矿业大学(北京) Flexible ceramic current-collecting layer film green body
CN113061313A (en) * 2021-03-31 2021-07-02 华中科技大学 Flexible perovskite scintillator thick film and preparation method thereof
CN113150554A (en) * 2021-05-25 2021-07-23 南京邮电大学 PDMS-based flexible energy storage composite membrane and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
黄宇阳: "掺杂钙钛矿锰氧化物La1-xAExMnO3（AE=Ca，Sr，Pb）的微结构、磁性及电输运性能研究" *

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