CN102584193A - Preparation method of bismuth ferrate barium titanate solid solution composite material with high magnetization intensity and high polarization intensity - Google Patents

Preparation method of bismuth ferrate barium titanate solid solution composite material with high magnetization intensity and high polarization intensity Download PDF

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CN102584193A
CN102584193A CN2012100233568A CN201210023356A CN102584193A CN 102584193 A CN102584193 A CN 102584193A CN 2012100233568 A CN2012100233568 A CN 2012100233568A CN 201210023356 A CN201210023356 A CN 201210023356A CN 102584193 A CN102584193 A CN 102584193A
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barium titanate
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CN102584193B (en
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林营
杨海波
杨艳艳
朱建锋
王芬
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Shaanxi University of Science and Technology
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Abstract

The invention provides a preparation method of a bismuth ferrate barium titanate solid solution composite material with high magnetization intensity and high polarization intensity. BiY2Fe5O12 powder and 0.7BiFeO3-0.3BaTiO3 powder are prepared; the 0.7BiFeO3-0.3BaTiO3 powder is evenly mixed with the BiY2Fe5O12 powder, and then a polyvinyl alcohol (PVA) adhesive is added to an obtained mixture to obtain mixed powder of the needed composite material; and the mixed powder of the composite material is pressed to be formed according to requirements, heated to remove the adhesive PVA, and then sintered to ceramic to obtain the bismuth ferrate barium titanate solid solution composite material with high magnetization intensity and high resistivity. By adopting the preparation method, the saturation magnetization intensity of bismuth ferrate barium titanate solid solution ceramic can be increased from 0.03emu/g to 4.4emu/g; and meanwhile, the remnant polarization intensity of the bismuth ferrate barium titanate solid solution ceramic can be obviously increased from 18.6 C/cm2 to 20.1 C/cm2.

Description

The preparation method of the ferrous acid bismuth barium titanate sosoloid matrix material of a kind of high magnetic intensity and polarizability
Technical field
The invention belongs to material science, be specifically related to the preparation method of the ferrous acid bismuth barium titanate sosoloid matrix material of a kind of high magnetic intensity and polarizability.
Background technology
Multi-ferroic material (multiferroic) is a kind ofly to integrate ferroelectric, magnetic order, thus ferroelectricity and magnetic coexistence and material with magneto-electric coupled character.The deficiency of ferroelectric or (anti--) ferromagnetic material of this material is complementary pure (anti--) and present the order of electricity and magnetic simultaneously; Because the coexistence of ferroelectricity and magnetic makes this material to be induced by electric field and produces magnetic field; Iron electric polarization also can be brought out in magnetic field simultaneously, and this character is called as magnetoelectric effect.Electric field can be induced magnetic polarization, and magnetic field can be induced this special functional materials of iron electric polarization will have widely and used, and concrete the application is mainly reflected in following several respects: modulate amplitude, polarization and the position of light wave mutually (1); (2) magnetoelectricity data storage and conversion; (3) optical diode; (4) spin wave producer; (5) amplification of spin wave and frequency inverted; (6) wide band magnetic detection and multi-function electronic device such as transmitter, stopper, inductor block, transmodulator etc.; (7) electric current, voltage bidirectional transducer etc.The ferrous acid bismuth is as a kind of typical single phase multi-iron material; Have Tc and Ne&1&el temperature far above room temperature; Be present unique single phase multi-iron material that has ferroelectricity and parasitic weak ferromagnetism at ambient temperature simultaneously, therefore, caused numerous investigators' very big concern.Yet the shortcoming of ferrous acid bismuth is that the existence owing to ferrous ion and oxygen room causes big leakage conductance electric current and owing to antiferroelectric essence causes weak magnetic.Above shortcoming has seriously limited the practical application of ferrous acid bismuth material.Though, in the ferrous acid bismuth, introduce barium titanate formation sosoloid and can reduce its leakage current raising ferroelectricity to a certain extent.But the magnetic of the ferrous acid bismuth barium titanate sosoloid that forms still a little less than.In ferrous acid bismuth pottery, introducing ferromagnetic ferrite can significantly improve, yet, because vectolite (CoFe commonly used 2O 4) and the resistivity of nickel-zinc ferrite (NiZn ferrite) lower; If being incorporated into above ferrous acid bismuth barium titanate sosoloid, these two kinds of ferrites form matrix material; Though can improve the magnetic property of ferrous acid bismuth barium titanate sosoloid, further reduce polarizability and worsen ferroelectricity thereby can reduce its resistivity.
Summary of the invention
The object of the present invention is to provide the preparation method of the ferrous acid bismuth barium titanate sosoloid matrix material of simple high magnetic intensity of a kind of preparation technology and polarizability.
For achieving the above object, the technical scheme that the present invention adopts is:
1) by the chemical general formula BiY that mixes bismuth ferrous acid yttrium 2Fe 5O 12, take by weighing analytically pure Bi 2O 3, Y 2O 3, and Fe 2O 3Preparation back ball milling 4 hours, oven dry is sieved then, and briquetting through 900 ℃ of pre-burnings 3 hours, was pulverized 120 mesh sieves with the gained bulk sample then and was obtained BiY 2Fe 5O 12Powder;
2) press the chemical general formula 0.7BiFeO of ferrous acid bismuth barium titanate sosoloid 3-0.3BaTiO 3, take by weighing analytically pure BaCO 3, TiO 2, Bi 2O 3And Fe 2O 3Preparation back ball milling 4 hours, oven dry is sieved then, and briquetting through 840 ℃ of pre-burnings 3 hours, is crossed 120 mesh sieves with gained bulk sample pulverizing back then and is obtained 0.7BiFeO 3-0.3BaTiO 3Powder;
3) press chemical general formula xBiY 2Fe 5O 12/ (1-x) (0.7BiFeO 3-0.3BaTiO 3) with 0.7BiFeO 3-0.3BaTiO 3Powder and BiY 2Fe 5O 12Powder mixes, and wherein x is BiY 2Fe 5O 12Mass percent, and 0.05≤x≤0.2;
4) the PVA tackiness agent that in mixed powder, adds mixed powder quality 8%～15% obtains the mixed powder of required matrix material;
5) with the mixed powder compression moulding on demand of matrix material; At 550 ℃; Be incubated 4 hours and get rid of tackiness agent PVA, became porcelain in 0.5～2 hour, obtain the ferrous acid bismuth barium titanate sosoloid matrix material of high magnetic intensity and polarizability at 1000～1050 ℃ of following sintering.
It is 5% polyvinyl alcohol water solution granulation after 60 orders and 120 eye mesh screens sieve processes that described PVA tackiness agent adopts mass concentration.
The present invention can be increased to 4.4emu/g from the 0.03emu/ gram with the saturation magnetization of ferrous acid bismuth barium titanate solid solution ceramic.Simultaneously, can with the remnant polarization of ferrous acid bismuth barium titanate solid solution ceramic from 18.6 microcoulombs/centimetre 2Be increased to 20.1 microcoulombs/centimetre 2
Description of drawings
Fig. 1 is incubated 0.5 hour pure phase 0.7BiFeO of sintering gained down at 1000 ℃ 3-0.3BaTiO 3The magnetic hysteresis loop of pottery.
Fig. 2 works as 0.7BiFeO 3-0.3BaTiO 3Mass ratio be 95%, BiY 2Fe 5O 12Mass ratio be 5%, 1050 ℃ the insulation 0.5 hour sintering gained matrix material magnetic hysteresis loops.
Fig. 3 works as 0.7BiFeO 3-0.3BaTiO 3Mass ratio be 90%, BiY 2Fe 5O 12Mass ratio be 10%, 1050 ℃ the insulation 1 hour sintering gained matrix material magnetic hysteresis loops.
Fig. 4 works as 0.7BiFeO 3-0.3BaTiO 3Mass ratio be 80%, BiY 2Fe 5O 12Mass ratio be 20%, 1050 ℃ the insulation 2 hours sintering gained matrix materials magnetic hysteresis loops.
Fig. 5 is incubated 0.5 hour pure 0.7BiFeO of sintering gained down at 1000 ℃ 3-0.3BaTiO 3The ferroelectric hysteresis loop of pottery.
Fig. 6 works as 0.7BiFeO 3-0.3BaTiO 3Mass ratio be 95%, BiY 2Fe 5O 12Mass ratio be 5%, 1050 ℃ the insulation 0.5 hour sintering gained matrix material ferroelectric hysteresis loops.
Fig. 7 works as 0.7BiFeO 3-0.3BaTiO 3Mass ratio be 90%, BiY 2Fe 5O 12Mass ratio be 10%, 1050 ℃ the insulation 1 hour sintering gained matrix material ferroelectric hysteresis loops.
Fig. 8 works as 0.7BiFeO 3-0.3BaTiO 3Mass ratio be 80%, BiY 2Fe 5O 12Mass ratio be 20%, 1000 ℃ the insulation 2 hours sintering gained matrix materials ferroelectric hysteresis loops.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further explain.
Embodiment 1:
1) by the chemical general formula BiY that mixes bismuth ferrous acid yttrium 2Fe 5O 12, take by weighing analytically pure Bi 2O 3, Y 2O 3, and Fe 2O 3Preparation back ball milling 4 hours, oven dry is sieved then, and briquetting through 900 ℃ of pre-burnings 3 hours, was pulverized 120 mesh sieves with the gained bulk sample then and was obtained BiY 2Fe 5O 12Powder;
2) press the chemical general formula 0.7BiFeO of ferrous acid bismuth barium titanate sosoloid 3-0.3BaTiO 3, take by weighing analytically pure BaCO 3, TiO 2, Bi 2O 3And Fe 2O 3Preparation back ball milling 4 hours, oven dry is sieved then, and briquetting through 840 ℃ of pre-burnings 3 hours, is crossed 120 mesh sieves with gained bulk sample pulverizing back then and is obtained 0.7BiFeO 3-0.3BaTiO 3Powder;
3) press chemical general formula xBiY 2Fe 5O 12/ (1-x) (0.7BiFeO 3-0.3BaTiO 3) with 0.7BiFeO 3-0.3BaTiO 3Powder and BiY 2Fe 5O 12Powder mixes, and wherein x is BiY 2Fe 5O 12Mass percent, and x=0.05;
4) the PVA tackiness agent that in mixed powder, adds mixed powder quality 8% obtains the mixed powder of required matrix material;
It is 5% polyvinyl alcohol water solution granulation after 60 orders and 120 eye mesh screens sieve processes that described PVA tackiness agent adopts mass concentration;
5) with the mixed powder compression moulding on demand of matrix material,, be incubated 4 hours and get rid of tackiness agent PVA, became porcelain in 0.5 hour, obtain the ferrous acid bismuth barium titanate sosoloid matrix material of high magnetic intensity and polarizability at 1050 ℃ of following sintering at 550 ℃.
The magnetic that can find out pure phase bismuth ferric barium titanate solid solution ceramic by Fig. 1 very a little less than, saturation magnetization is the 0.03emu/ gram.Can find out that by Fig. 2 the saturation magnetization of this matrix material is 1.1emu/g.
Embodiment 2:
1) by the chemical general formula BiY that mixes bismuth ferrous acid yttrium 2Fe 5O 12, take by weighing analytically pure Bi 2O 3, Y 2O 3, and Fe 2O 3Preparation back ball milling 4 hours, oven dry is sieved then, and briquetting through 900 ℃ of pre-burnings 3 hours, was pulverized 120 mesh sieves with the gained bulk sample then and was obtained BiY 2Fe 5O 12Powder;
2) press the chemical general formula 0.7BiFeO of ferrous acid bismuth barium titanate sosoloid 3-0.3BaTiO 3, take by weighing analytically pure BaCO 3, TiO 2, Bi 2O 3And Fe 2O 3Preparation back ball milling 4 hours, oven dry is sieved then, and briquetting through 840 ℃ of pre-burnings 3 hours, is crossed 120 mesh sieves with gained bulk sample pulverizing back then and is obtained 0.7BiFeO 3-0.3BaTiO 3Powder;
3) press chemical general formula xBiY 2Fe 5O 12/ (1-x) (0.7BiFeO 3-0.3BaTiO 3) with 0.7BiFeO 3-0.3BaTiO 3Powder and BiY 2Fe 5O 12Powder mixes, and wherein x is BiY 2Fe 5O 12Mass percent, and x=0.1;
4) the PVA tackiness agent that in mixed powder, adds mixed powder quality 10% obtains the mixed powder of required matrix material;
It is 5% polyvinyl alcohol water solution granulation after 60 orders and 120 eye mesh screens sieve processes that described PVA tackiness agent adopts mass concentration;
5) with the mixed powder compression moulding on demand of matrix material,, be incubated 4 hours and get rid of tackiness agent PVA, became porcelain in 1 hour, obtain the ferrous acid bismuth barium titanate sosoloid matrix material of high magnetic intensity and polarizability at 1050 ℃ of following sintering at 550 ℃.
Can find out that by Fig. 3 the saturation magnetization of matrix material this moment is the 2.1emu/ gram.
Embodiment 3:
1) by the chemical general formula BiY that mixes bismuth ferrous acid yttrium 2Fe 5O 12, take by weighing analytically pure Bi 2O 3, Y 2O 3, and Fe 2O 3Preparation back ball milling 4 hours, oven dry is sieved then, and briquetting through 900 ℃ of pre-burnings 3 hours, was pulverized 120 mesh sieves with the gained bulk sample then and was obtained BiY 2Fe 5O 12Powder;
2) press the chemical general formula 0.7BiFeO of ferrous acid bismuth barium titanate sosoloid 3-0.3BaTiO 3, take by weighing analytically pure BaCO 3, TiO 2, Bi 2O 3And Fe 2O 3Preparation back ball milling 4 hours, oven dry is sieved then, and briquetting through 840 ℃ of pre-burnings 3 hours, is crossed 120 mesh sieves with gained bulk sample pulverizing back then and is obtained 0.7BiFeO 3-0.3BaTiO 3Powder;
3) press chemical general formula xBiY 2Fe 5O 12/ (1-x) (0.7BiFeO 3-0.3BaTiO 3) with 0.7BiFeO 3-0.3BaTiO 3Powder and BiY 2Fe 5O 12Powder mixes, and wherein x is BiY 2Fe 5O 12Mass percent, and x=0.2;
4) the PVA tackiness agent that in mixed powder, adds mixed powder quality 12% obtains the mixed powder of required matrix material;
It is 5% polyvinyl alcohol water solution granulation after 60 orders and 120 eye mesh screens sieve processes that described PVA tackiness agent adopts mass concentration;
5) with the mixed powder compression moulding on demand of matrix material,, be incubated 4 hours and get rid of tackiness agent PVA, became porcelain in 2 hours, obtain the ferrous acid bismuth barium titanate sosoloid matrix material of high magnetic intensity and polarizability at 1050 ℃ of following sintering at 550 ℃.
Can find out that by Fig. 4 the saturation magnetization of matrix material this moment is the 4.4emu/ gram.
Embodiment 4:
1) by the chemical general formula BiY that mixes bismuth ferrous acid yttrium 2Fe 5O 12, take by weighing analytically pure Bi 2O 3, Y 2O 3, and Fe 2O 3Preparation back ball milling 4 hours, oven dry is sieved then, and briquetting through 900 ℃ of pre-burnings 3 hours, was pulverized 120 mesh sieves with the gained bulk sample then and was obtained BiY 2Fe 5O 12Powder;
2) press the chemical general formula 0.7BiFeO of ferrous acid bismuth barium titanate sosoloid 3-0.3BaTiO 3, take by weighing analytically pure BaCO 3, TiO 2, Bi 2O 3And Fe 2O 3Preparation back ball milling 4 hours, oven dry is sieved then, and briquetting through 840 ℃ of pre-burnings 3 hours, is crossed 120 mesh sieves with gained bulk sample pulverizing back then and is obtained 0.7BiFeO 3-0.3BaTiO 3Powder;
3) press chemical general formula xBiY 2Fe 5O 12/ (1-x) (0.7BiFeO 3-0.3BaTiO 3) with 0.7BiFeO 3-0.3BaTiO 3Powder and BiY 2Fe 5O 12Powder mixes, and wherein x is BiY 2Fe 5O 12Mass percent, and x=0.05;
4) the PVA tackiness agent that in mixed powder, adds mixed powder quality 15% obtains the mixed powder of required matrix material;
It is 5% polyvinyl alcohol water solution granulation after 60 orders and 120 eye mesh screens sieve processes that described PVA tackiness agent adopts mass concentration;
5) with the mixed powder compression moulding on demand of matrix material,, be incubated 4 hours and get rid of tackiness agent PVA, became porcelain in 1 hour, obtain the ferrous acid bismuth barium titanate sosoloid matrix material of high magnetic intensity and polarizability at 1050 ℃ of following sintering at 550 ℃.
By Fig. 5 can find out the remnant polarization of pure phase bismuth ferric barium titanate solid solution ceramic be 18.7 microcoulombs/centimetre 2
By Fig. 6 can find out this moment matrix material remnant polarization be 20.1 microcoulombs/centimetre 2
Embodiment 5:
1) by the chemical general formula BiY that mixes bismuth ferrous acid yttrium 2Fe 5O 12, take by weighing analytically pure Bi 2O 3, Y 2O 3, and Fe 2O 3Preparation back ball milling 4 hours, oven dry is sieved then, and briquetting through 900 ℃ of pre-burnings 3 hours, was pulverized 120 mesh sieves with the gained bulk sample then and was obtained BiY 2Fe 5O 12Powder;
2) press the chemical general formula 0.7BiFeO of ferrous acid bismuth barium titanate sosoloid 3-0.3BaTiO 3, take by weighing analytically pure BaCO 3, TiO 2, Bi 2O 3And Fe 2O 3Preparation back ball milling 4 hours, oven dry is sieved then, and briquetting through 840 ℃ of pre-burnings 3 hours, is crossed 120 mesh sieves with gained bulk sample pulverizing back then and is obtained 0.7BiFeO 3-0.3BaTiO 3Powder;
3) press chemical general formula xBiY 2Fe 5O 12/ (1-x) (0.7BiFeO 3-0.3BaTiO 3) with 0.7BiFeO 3-0.3BaTiO 3Powder and BiY 2Fe 5O 12Powder mixes, and wherein x is BiY 2Fe 5O 12Mass percent, and x=0.1;
4) the PVA tackiness agent that in mixed powder, adds mixed powder quality 9% obtains the mixed powder of required matrix material;
It is 5% polyvinyl alcohol water solution granulation after 60 orders and 120 eye mesh screens sieve processes that described PVA tackiness agent adopts mass concentration;
5) with the mixed powder compression moulding on demand of matrix material,, be incubated 4 hours and get rid of tackiness agent PVA, became porcelain in 1 hour, obtain the ferrous acid bismuth barium titanate sosoloid matrix material of high magnetic intensity and polarizability at 1050 ℃ of following sintering at 550 ℃.
By Fig. 7 can find out this moment matrix material remnant polarization be 17.4 microcoulombs/centimetre 2
Embodiment 6:
1) by the chemical general formula BiY that mixes bismuth ferrous acid yttrium 2Fe 5O 12, take by weighing analytically pure Bi 2O 3, Y 2O 3, and Fe 2O 3Preparation back ball milling 4 hours, oven dry is sieved then, and briquetting through 900 ℃ of pre-burnings 3 hours, was pulverized 120 mesh sieves with the gained bulk sample then and was obtained BiY 2Fe 5O 12Powder;
2) press the chemical general formula 0.7BiFeO of ferrous acid bismuth barium titanate sosoloid 3-0.3BaTiO 3, take by weighing analytically pure BaCO 3, TiO 2, Bi 2O 3And Fe 2O 3Preparation back ball milling 4 hours, oven dry is sieved then, and briquetting through 840 ℃ of pre-burnings 3 hours, is crossed 120 mesh sieves with gained bulk sample pulverizing back then and is obtained 0.7BiFeO 3-0.3BaTiO 3Powder;
3) press chemical general formula xBiY 2Fe 5O 12/ (1-x) (0.7BiFeO 3-0.3BaTiO 3) with 0.7BiFeO 3-0.3BaTiO 3Powder and BiY 2Fe 5O 12Powder mixes, and wherein x is BiY 2Fe 5O 12Mass percent, and x=0.2;
4) the PVA tackiness agent that in mixed powder, adds mixed powder quality 13% obtains the mixed powder of required matrix material;
It is 5% polyvinyl alcohol water solution granulation after 60 orders and 120 eye mesh screens sieve processes that described PVA tackiness agent adopts mass concentration;
5) with the mixed powder compression moulding on demand of matrix material,, be incubated 4 hours and get rid of tackiness agent PVA, became porcelain in 2 hours, obtain the ferrous acid bismuth barium titanate sosoloid matrix material of high magnetic intensity and polarizability at 1000 ℃ of following sintering at 550 ℃.
By Fig. 8 can find out this moment matrix material remnant polarization be 14.8 microcoulombs/centimetre 2
Embodiment 7:
1) by the chemical general formula BiY that mixes bismuth ferrous acid yttrium 2Fe 5O 12, take by weighing analytically pure Bi 2O 3, Y 2O 3, and Fe 2O 3Preparation back ball milling 4 hours, oven dry is sieved then, and briquetting through 900 ℃ of pre-burnings 3 hours, was pulverized 120 mesh sieves with the gained bulk sample then and was obtained BiY 2Fe 5O 12Powder;
2) press the chemical general formula 0.7BiFeO of ferrous acid bismuth barium titanate sosoloid 3-0.3BaTiO 3, take by weighing analytically pure BaCO 3, TiO 2, Bi 2O 3And Fe 2O 3Preparation back ball milling 4 hours, oven dry is sieved then, and briquetting through 840 ℃ of pre-burnings 3 hours, is crossed 120 mesh sieves with gained bulk sample pulverizing back then and is obtained 0.7BiFeO 3-0.3BaTiO 3Powder;
3) press chemical general formula xBiY 2Fe 5O 12/ (1-x) (0.7BiFeO 3-0.3BaTiO 3) with 0.7BiFeO 3-0.3BaTiO 3Powder and BiY 2Fe 5O 12Powder mixes, and wherein x is BiY 2Fe 5O 12Mass percent, and x=0.08;
4) the PVA tackiness agent that in mixed powder, adds mixed powder quality 11% obtains the mixed powder of required matrix material;
It is 5% polyvinyl alcohol water solution granulation after 60 orders and 120 eye mesh screens sieve processes that described PVA tackiness agent adopts mass concentration;
5) with the mixed powder compression moulding on demand of matrix material,, be incubated 4 hours and get rid of tackiness agent PVA, became porcelain in 0.5 hour, obtain ferrous acid bismuth barium titanate sosoloid matrix material at 1030 ℃ of following sintering at 550 ℃.
Embodiment 8:
1) by the chemical general formula BiY that mixes bismuth ferrous acid yttrium 2Fe 5O 12, take by weighing analytically pure Bi 2O 3, Y 2O 3, and Fe 2O 3Preparation back ball milling 4 hours, oven dry is sieved then, and briquetting through 900 ℃ of pre-burnings 3 hours, was pulverized 120 mesh sieves with the gained bulk sample then and was obtained BiY 2Fe 5O 12Powder;
2) press the chemical general formula 0.7BiFeO of ferrous acid bismuth barium titanate sosoloid 3-0.3BaTiO 3, take by weighing analytically pure BaCO 3, TiO 2, Bi 2O 3And Fe 2O 3Preparation back ball milling 4 hours, oven dry is sieved then, and briquetting through 840 ℃ of pre-burnings 3 hours, is crossed 120 mesh sieves with gained bulk sample pulverizing back then and is obtained 0.7BiFeO 3-0.3BaTiO 3Powder;
3) press chemical general formula xBiY 2Fe 5O 12/ (1-x) (0.7BiFeO 3-0.3BaTiO 3) with 0.7BiFeO 3-0.3BaTiO 3Powder and BiY 2Fe 5O 12Powder mixes, and wherein x is BiY 2Fe 5O 12Mass percent, and x=0.15;
4) the PVA tackiness agent that in mixed powder, adds mixed powder quality 14% obtains the mixed powder of required matrix material;
It is 5% polyvinyl alcohol water solution granulation after 60 orders and 120 eye mesh screens sieve processes that described PVA tackiness agent adopts mass concentration;
5) with the mixed powder compression moulding on demand of matrix material,, be incubated 4 hours and get rid of tackiness agent PVA, became porcelain in 1.5 hours, obtain ferrous acid bismuth barium titanate sosoloid matrix material at 1020 ℃ of following sintering at 550 ℃.

Claims (2)

1. the preparation method of the ferrous acid bismuth barium titanate sosoloid matrix material of high magnetic intensity and polarizability is characterized in that may further comprise the steps:
1) by the chemical general formula BiY that mixes bismuth ferrous acid yttrium 2Fe 5O 12, take by weighing analytically pure Bi 2O 3, Y 2O 3, and Fe 2O 3Preparation back ball milling 4 hours, oven dry is sieved then, and briquetting through 900 ℃ of pre-burnings 3 hours, was pulverized 120 mesh sieves with the gained bulk sample then and was obtained BiY 2Fe 5O 12Powder;
2) press the chemical general formula 0.7BiFeO of ferrous acid bismuth barium titanate sosoloid 3-0.3BaTiO 3, take by weighing analytically pure BaCO 3, TiO 2, Bi 2O 3And Fe 2O 3Preparation back ball milling 4 hours, oven dry is sieved then, and briquetting through 840 ℃ of pre-burnings 3 hours, is crossed 120 mesh sieves with gained bulk sample pulverizing back then and is obtained 0.7BiFeO 3-0.3BaTiO 3Powder;
3) press chemical general formula xBiY 2Fe 5O 12/ (1-x) (0.7BiFeO 3-0.3BaTiO 3) with 0.7BiFeO 3-0.3BaTiO 3Powder and BiY 2Fe 5O 12Powder mixes, and wherein x is BiY 2Fe 5O 12Mass percent, and 0.05≤x≤0.2;
4) the PVA tackiness agent that in mixed powder, adds mixed powder quality 8%～15% obtains the mixed powder of required matrix material;
5) with the mixed powder compression moulding on demand of matrix material; At 550 ℃; Be incubated 4 hours and get rid of tackiness agent PVA, became porcelain in 0.5～2 hour, obtain the ferrous acid bismuth barium titanate sosoloid matrix material of high magnetic intensity and polarizability at 1000～1050 ℃ of following sintering.
2. the preparation method of the ferrous acid bismuth barium titanate sosoloid matrix material of high magnetic intensity according to claim 1 and polarizability is characterized in that: it is 5% polyvinyl alcohol water solution granulation after 60 orders and 120 eye mesh screens sieve processes that described PVA tackiness agent adopts mass concentration.
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CN104557029A (en) * 2015-01-14 2015-04-29 陕西科技大学 BiY2F25O12/BaTiO3 lamellar ferroelectric composite material as well as preparation method thereof
CN107417267A (en) * 2017-08-09 2017-12-01 歌尔股份有限公司 Bismuth ferrite multiferroic ceramics and preparation method thereof
CN109516796A (en) * 2018-11-30 2019-03-26 江西科技学院 A kind of multiferroic solid solution ceramic and preparation method thereof
CN111253151A (en) * 2020-03-14 2020-06-09 杭州电子科技大学 Bismuth ferrite barium titanate-based ceramic with high energy storage density and high power density and preparation method thereof

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