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Method for preparing bismuth calcium vanadium garnet ferrite material
The invention relates to a method for preparing a bismuth-calcium-vanadium garnet ferrite material, which comprises the following steps of: preparing the bismuth-calcium-vanadium garnet ferrite material from the following components in parts by mole: 1.1 to 1.3 parts of Bi, 1.7 to 1.9 parts of Ca, 1.0 to 1.2 parts of V, 0.25 to 0.35 part of Zr, 0.35 to 0.45 part of In and 3.1 to 3.2 parts of Fe; the preparation method comprises the following steps: metering and preparing the raw materials according to the weight calculated according to the formula, carrying out wet mixing through a ball mill, drying and pre-sintering to obtain a pre-sintered material, carrying out wet ball-milling crushing on the pre-sintered material, discharging and drying after a certain particle size is reached, adding a certain amount of PVA solution into the obtained powder, uniformly mixing, carrying out steps of pre-press molding, crushing and granulating, and carrying out dry pressing molding, oxygenation sintering and precise grinding processing on the obtained granules to obtain the bismuth calcium vanadium garnet ferrite material magnet. The method has the characteristics of advanced process technology, good magnetic performance parameters, low insertion loss of devices used in the microwave circulator isolator, high working temperature, good working stability and the like, and provides a good and stable rotating magnetic field for the microwave circulator isolator.
本发明涉及一种制造铋钙钒石榴石铁氧体材料的方法，步骤如下：配方按摩尔份计，Bi：1.1～1.3份、Ca：1.7～1.9份、V：1.0～1.2份、Zr：0.25～0.35份、In：0.35～0.45份、Fe：3.1～3.2份；将原料按配方计算的重量进行计量配制，经球磨机进行湿法混合、烘干后进行预烧，得到预烧料后，将所述预烧料进行湿法球磨粉碎，达到一定粒度后出料烘干，将得到的粉料加入一定量的PVA溶液混合均匀，经过预压成型，破碎造粒，得到粒径均匀的颗粒料后进行干压成型、充氧烧结、精密磨加工的到铋钙钒石榴石铁氧体材料磁体。本发明具有工艺技术先进，磁性能参数好，在微波环行器隔离器中使用器件插入损耗低，工作温度高，工作稳定性好等特点，为微波环行器隔离器提供了良好稳定的旋磁场。
Method for preparing bismuth calcium vanadium garnet ferrite material
The invention relates to a method for preparing a bismuth-calcium-vanadium garnet ferrite material, which comprises the following steps of: preparing the bismuth-calcium-vanadium garnet ferrite material from the following components in parts by mole: 1.1 to 1.3 parts of Bi, 1.7 to 1.9 parts of Ca, 1.0 to 1.2 parts of V, 0.25 to 0.35 part of Zr, 0.35 to 0.45 part of In and 3.1 to 3.2 parts of Fe; the preparation method comprises the following steps: metering and preparing the raw materials according to the weight calculated according to the formula, carrying out wet mixing through a ball mill, drying and pre-sintering to obtain a pre-sintered material, carrying out wet ball-milling crushing on the pre-sintered material, discharging and drying after a certain particle size is reached, adding a certain amount of PVA solution into the obtained powder, uniformly mixing, carrying out steps of pre-press molding, crushing and granulating, and carrying out dry pressing molding, oxygenation sintering and precise grinding processing on the obtained granules to obtain the bismuth calcium vanadium garnet ferrite material magnet. The method has the characteristics of advanced process technology, good magnetic performance parameters, low insertion loss of devices used in the microwave circulator isolator, high working temperature, good working stability and the like, and provides a good and stable rotating magnetic field for the microwave circulator isolator.
本发明涉及一种制造铋钙钒石榴石铁氧体材料的方法，步骤如下：配方按摩尔份计，Bi：1.1～1.3份、Ca：1.7～1.9份、V：1.0～1.2份、Zr：0.25～0.35份、In：0.35～0.45份、Fe：3.1～3.2份；将原料按配方计算的重量进行计量配制，经球磨机进行湿法混合、烘干后进行预烧，得到预烧料后，将所述预烧料进行湿法球磨粉碎，达到一定粒度后出料烘干，将得到的粉料加入一定量的PVA溶液混合均匀，经过预压成型，破碎造粒，得到粒径均匀的颗粒料后进行干压成型、充氧烧结、精密磨加工的到铋钙钒石榴石铁氧体材料磁体。本发明具有工艺技术先进，磁性能参数好，在微波环行器隔离器中使用器件插入损耗低，工作温度高，工作稳定性好等特点，为微波环行器隔离器提供了良好稳定的旋磁场。
Method for preparing bismuth calcium vanadium garnet ferrite material
一种制造铋钙钒石榴石铁氧体材料的方法
LU YANGCHENG (author) / YANG HUI (author) / LEI QINGSONG (author)
2021-12-17
Patent
Electronic Resource
Chinese
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