Supercharge Your Innovation With Domain-Expert AI Agents!

Soft-magnetic magnetostrictive ferrite material and manufacturing method thereof

A ferrite material and magnetostriction technology, applied in the field of magnetic materials, to achieve the effect of both market competitiveness, high reliability, and negative magnetostriction coefficient

Inactive Publication Date: 2015-04-08
HENGDIAN GRP DMEGC MAGNETICS CO LTD
View PDF4 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention mainly solves the problem of energy transfer of a soft ferrite bar at a specific output frequency (40-43) KHz, and at the same time solves the problem of the saturation magnetization Ms and negative magnetostriction coefficient λs of the ferrite bar , providing a soft magnetostrictive ferrite material with a high saturation magnetization Ms and a negative magnetostriction coefficient λs and a manufacturing method thereof

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Soft-magnetic magnetostrictive ferrite material and manufacturing method thereof
  • Soft-magnetic magnetostrictive ferrite material and manufacturing method thereof
  • Soft-magnetic magnetostrictive ferrite material and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Proportion the main components and additives in specified amounts as shown in Table 1.

[0023] The preparation method is:

[0024] (1) Primary ball milling: the main components are mixed according to the ratio, and the obtained mixture is wet-processed primary ball milling, and the average particle size of the granular material after the primary ball milling is 0.8-1.5 μm.

[0025] (2) Pre-burning: Pre-burning the pellets after primary ball milling in the air, the pre-burning temperature is controlled at 1050° C., and kept for 4 hours.

[0026] (3) Secondary ball milling: perform wet secondary ball milling on the calcined granules together with the additives, and the average particle size of the granules after the secondary ball milling is 0.8-1.2 μm.

[0027] (4) Molding and sintering: dry the granules after secondary ball milling, add a polyvinyl alcohol solution with a concentration of 12% of 11wt% of pre-fired material, mix evenly, spray granulate, and press to fo...

Embodiment 2

[0038] The main components and additives are proportioned according to the specified amounts shown in Table 2.

[0039] The preparation method is:

[0040] (1) Primary ball milling: the main components are mixed according to the ratio, and the obtained mixture is wet-processed primary ball milling, and the average particle size of the granular material after the primary ball milling is 0.8-1.5 μm.

[0041] (2) Pre-burning: Pre-burn the pellets after primary ball milling in the air, the pre-burning temperature is controlled at 1050° C., and the temperature is kept for 0.5 hours.

[0042] (3) Secondary ball milling: perform wet secondary ball milling on the calcined granules together with the additives, and the average particle size of the granules after the secondary ball milling is 0.8-1.2 μm.

[0043] (4) Molding and sintering: dry the granules after the secondary ball milling, add a polyvinyl alcohol solution with a concentration of 10wt% of 13wt% of the weight of the pre-fir...

Embodiment 3

[0054] The main components and additives were mixed in predetermined amounts as shown in Table 3.

[0055] The preparation method is:

[0056] (1) Primary ball milling: the main components are mixed according to the ratio, and the obtained mixture is wet-processed primary ball milling, and the average particle size of the granular material after the primary ball milling is 0.8-1.5 μm.

[0057] (2) Pre-burning: Pre-burn the pellets after primary ball milling in the air, the pre-burning temperature is controlled at 1110° C., and the temperature is kept for 2.5 hours.

[0058] (3) Secondary ball milling: perform wet secondary ball milling on the calcined granules together with the auxiliary components, and the average particle size of the granules after the secondary ball milling is 0.8-1.2 μm.

[0059] (4) Molding and sintering: dry the granules after secondary ball milling, add a polyvinyl alcohol solution with a concentration of 12wt% of the weight of pre-sintered material, m...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Average particle sizeaaaaaaaaaa
Outer diameteraaaaaaaaaa
The inside diameter ofaaaaaaaaaa
Login to View More

Abstract

The invention discloses a soft-magnetic magnetostrictive ferrite material with high saturation magnetization Ms and a negative magnetostriction coefficient lambda s and a manufacturing method thereof. The soft-magnetic magnetostrictive ferrite material comprises main components and additives. The main components comprise 50-58mol% of Fe2O3, 36-42mol% of NiO, 0.1-4.5mol% of ZnO, 1-8mol% of CuO and 0.2-8mol% of Co2O3. The additives comprise more than two of Mn3O4, SiO2, Bi2O3, TiO2 and CaCO3. The soft-magnetic magnetostrictive ferrite material can be used in a frequency scope of 40-43KHz, has high saturation magnetization Ms and a negative magnetostriction coefficient lambda s and has the characteristics of 1, large deformation amount and large stress, 2, fast response speed, 3, soft magnetism, 4, drivability in a low magnetic field, 5, high Curie temperature, 6, no magnetostrictive characteristic sensibility to temperature change in a use atmosphere, 7, high reliability and 8, good environmental friendliness and market competitiveness.

Description

technical field [0001] The invention relates to the related technical field of magnetic materials, in particular to a soft magnetic magnetostrictive ferrite material and a manufacturing method thereof. Background technique [0002] Since the length of the magnetostrictive material can be repeatedly elongated and shortened with the alternation of the external magnetic field, it can generate mechanical waves, so it can realize the interaction between electrical energy (or electromagnetic information) and mechanical energy, acoustic energy (or mechanical displacement information, acoustic information). Conversion, so it is widely used in power electro-acoustic transducers, electro-mechanical transducers, sensors and electronic devices. [0003] As far as application is concerned, what currently competes in the market is piezoelectric ceramic devices with price advantages, but compared with the performance of traditional piezoelectric ceramics (PZT), magnetostrictive materials h...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C04B35/26C04B35/622
Inventor 陈军林陈新彬
Owner HENGDIAN GRP DMEGC MAGNETICS CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com