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Low-temperature sintering soft magnetic ferrite material and preparation method thereof

A soft ferrite and low-temperature sintering technology, applied in the direction of the magnetic properties of inorganic materials, can solve the problems of large influence on the electromagnetic properties of materials and grain growth, and achieve the effects of reducing production costs, low pre-sintering temperature, and lowering sintering temperature.

Inactive Publication Date: 2019-10-25
SHANDONG GREEN TEC MOTOR DRIVEN TECH
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Problems solved by technology

[0006] Add Bi 2 o 3 Although the cost is low, the cooling effect is good, and the operation is convenient; but Bi 2 o 3 It has a great influence on the electromagnetic properties of materials, and it is easy to cause abnormal grain growth, and Bi is a heavy metal element, which is less and less used

Method used

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  • Low-temperature sintering soft magnetic ferrite material and preparation method thereof
  • Low-temperature sintering soft magnetic ferrite material and preparation method thereof

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Embodiment Construction

[0025] The present invention adopts the Fe of analytical purity 2 o 3 , NiO, ZnO, and CuO as raw materials to prepare the main crystal phase, and the purity is the analytically pure CaCO 3 、H 3 BO 3 , SiO 2 Prepare CBS glass, carry out doping, the specific implementation method is as follows:

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Abstract

The invention discloses a low-temperature sintering soft magnetic ferrite material and a preparation method thereof, and belongs to the technical field of electronic information functional materials and devices. Iron-nickel-zinc-copper oxide is used as a main component composition, CBS glass is used as a sintering aid, and the low-temperature sintering soft magnetic ferrite material is prepared bya solid-phase reaction method and prepared by ball milling, drying, pre-sintering, secondary ball milling, drying and pulverization and sieving and the other processes. The low-temperature sinteringsoft magnetic ferrite material has the characteristics of low sintering temperature, high self-resonance frequency, high quality factor and high impedance and can be used for manufacturing peak magnetic beads and chip inductors, and the problem that a magnetic body and a silver electrode cannot co-sinter well is solved.

Description

technical field [0001] The invention belongs to the technical field of electronic information functional materials and devices, and specifically relates to a soft magnetic ferrite material with the characteristics of low sintering temperature, high self-resonant frequency, high quality factor and high impedance and a preparation method thereof. It can be used to make spike magnetic beads, chip inductors, and solve the problem that magnets and silver electrodes cannot be co-fired well. Background technique [0002] At present, FeNiCuZn and FeMgCuZn are the main soft ferrite materials for low-temperature sintered multilayer chip inductors at home and abroad. Because they need to be co-sintered with pure silver inner conductors at about 900 ° C, different quantities are generally added in the formula design. and other burning aids, and the most commonly used burning aid is Bi 2 o 3 . [0003] (1) Add Bi 2 o 3 The working principle of burning aid: because Bi 2 o 3 The mel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/30C04B35/626C04B35/64H01F1/36
CPCC04B35/265C04B35/62605C04B35/64H01F1/36C04B2235/3279C04B2235/3281C04B2235/3284C04B2235/365C04B2235/656C04B2235/6567C04B2235/77
Inventor 王明东戴文金
Owner SHANDONG GREEN TEC MOTOR DRIVEN TECH
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