Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of textured Z-type Ba0.52Sr2.48Co2Fe24O41 hexagonal ferrite
The invention discloses a preparation method of textured Z-type Ba0.52Sr2.48Co2Fe24O41 hexagonal ferrite, wherein the preparation method comprises the steps: uniformly mixing barium carbonate, strontium carbonate, cobalt oxide and ferric oxide raw materials in a certain stoichiometric ratio, grinding, tabletting, placing in a box-type furnace at high temperature, and calcining to synthesize a phase A; placing the phase A in a tubular furnace, and performing annealing treatment in a flowing oxygen atmosphere to obtain a sample B; grinding the sample B into powder, dispersing a certain amount of powder into a premixed solution of polyvinyl alcohol and deionized water to prepare slurry, transferring the slurry into an alloy mold, treating for a period of time under a magnetic field condition, and applying pressure to perform forming treatment on the slurry to obtain a biscuit sample C; and removing the magnetic field, taking out the sample C, and putting the sample C into a box-type furnace for high-temperature sintering treatment to obtain the textured Ba0.52Sr2.48Co2Fe24O41 material. When the textured Ba0.52Sr2.48Co2Fe24O41 material prepared by the method is used for a single-phase multiferroic material, the textured Ba0.52Sr2.48Co2Fe24O41 material has the remarkable advantages of high magnetoelectric coupling temperature and high coupling strength.
本发明公开了一种织构化Z型Ba0.52Sr2.48Co2Fe24O41六角铁氧体的制备方法，将一定化学计量比的碳酸钡、碳酸锶、氧化钴、氧化铁原材料均匀混合、研磨、压片后，置于箱式炉里高温煅烧，合成物相A；将物相A置于管式炉中，于流动的氧气气氛下退火处理，得到样品B；将样品B研磨成粉体，取一定量的粉体分散在聚乙烯醇与去离子水的预混液中，制备其浆料，再把浆料转移到合金模具中，待磁场条件下处理一段时间后，施加压力对浆料成型处理，获得素坯样品C；撤去磁场，取出样品C，把其放在箱式炉里高温烧结处理，获得织构化Ba0.52Sr2.48Co2Fe24O41材料。本发明制备的织构化Ba0.52Sr2.48Co2Fe24O41材料用于单相多铁性材料时，具有磁电耦合温度高、耦合强度大的显著优势。
Preparation method of textured Z-type Ba0.52Sr2.48Co2Fe24O41 hexagonal ferrite
The invention discloses a preparation method of textured Z-type Ba0.52Sr2.48Co2Fe24O41 hexagonal ferrite, wherein the preparation method comprises the steps: uniformly mixing barium carbonate, strontium carbonate, cobalt oxide and ferric oxide raw materials in a certain stoichiometric ratio, grinding, tabletting, placing in a box-type furnace at high temperature, and calcining to synthesize a phase A; placing the phase A in a tubular furnace, and performing annealing treatment in a flowing oxygen atmosphere to obtain a sample B; grinding the sample B into powder, dispersing a certain amount of powder into a premixed solution of polyvinyl alcohol and deionized water to prepare slurry, transferring the slurry into an alloy mold, treating for a period of time under a magnetic field condition, and applying pressure to perform forming treatment on the slurry to obtain a biscuit sample C; and removing the magnetic field, taking out the sample C, and putting the sample C into a box-type furnace for high-temperature sintering treatment to obtain the textured Ba0.52Sr2.48Co2Fe24O41 material. When the textured Ba0.52Sr2.48Co2Fe24O41 material prepared by the method is used for a single-phase multiferroic material, the textured Ba0.52Sr2.48Co2Fe24O41 material has the remarkable advantages of high magnetoelectric coupling temperature and high coupling strength.
本发明公开了一种织构化Z型Ba0.52Sr2.48Co2Fe24O41六角铁氧体的制备方法，将一定化学计量比的碳酸钡、碳酸锶、氧化钴、氧化铁原材料均匀混合、研磨、压片后，置于箱式炉里高温煅烧，合成物相A；将物相A置于管式炉中，于流动的氧气气氛下退火处理，得到样品B；将样品B研磨成粉体，取一定量的粉体分散在聚乙烯醇与去离子水的预混液中，制备其浆料，再把浆料转移到合金模具中，待磁场条件下处理一段时间后，施加压力对浆料成型处理，获得素坯样品C；撤去磁场，取出样品C，把其放在箱式炉里高温烧结处理，获得织构化Ba0.52Sr2.48Co2Fe24O41材料。本发明制备的织构化Ba0.52Sr2.48Co2Fe24O41材料用于单相多铁性材料时，具有磁电耦合温度高、耦合强度大的显著优势。
Preparation method of textured Z-type Ba0.52Sr2.48Co2Fe24O41 hexagonal ferrite
一种织构化Z型Ba0.52Sr2.48Co2Fe24O41六角铁氧体的制备方法
ZHANG MIN (Autor:in) / YE YIFENG (Autor:in) / YI JIALONG (Autor:in)
13.07.2021
Patent
Elektronische Ressource
Chinesisch
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