Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High-performance ferric-based nano-crystalline soft magnetic alloy and preparation method thereof

An iron-based nanocrystalline and soft magnetic alloy technology, applied in magnetic materials, magnetic objects, electrical components, etc., can solve the problems of deteriorating soft magnetic properties, long holding time, and high annealing temperature, improving corrosion resistance and reducing secondary The effect of high yield and strong amorphous forming ability

Inactive Publication Date: 2013-02-27
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
View PDF6 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the current mainstream iron-based soft tape material such as (1K107) has a high annealing temperature (535°C) and a long holding time (1h). If C is used instead of B, NbC and Fe will be formed during annealing. 3 C, opposite diffuse distribution of NbC and Fe 3 The precipitation of C phase will pin the magnetic domains and deteriorate its soft magnetic properties

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
  • High-performance ferric-based nano-crystalline soft magnetic alloy and preparation method thereof
  • High-performance ferric-based nano-crystalline soft magnetic alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The present invention will be further described through the preparation and performance testing of several sets of examples and a set of comparative examples (FINEMT alloy), but the present invention is not limited to these examples.

[0020] Within the composition range of the iron-based nanocrystalline soft magnetic alloy of the present invention, we have prepared multiple groups of embodiments, wherein representative 3 groups of embodiments and comparative ratios are shown in the appendix figure 2 .

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
radiusaaaaaaaaaa
Login to View More

Abstract

The invention provides a high-performance ferric-based nano-crystalline soft magnetic alloy and a preparation method thereof, and belongs to the field of preparation of soft magnetic alloy of functional materials. Chemical elements of the nano-crystalline soft magnetic alloy can be represented by FeaPbCcSidAleCrfCug, wherein a, b, c, d, e and f are the atomic percentage of corresponding elements, which are in a range as follows: b is 4-10, c is 5-9, c is 0-6, e is 0.5-1, f is 0.3-0.5, g is 0-2, and a is (100-b-c-d-e-f-g). A soft magnetic amorphous alloy ribbon made by a rotary quenching method according to an ingredient proportion requirement of the invention is provided with good amorphous forming ability and annealing process performance, and particularly can keep a rather low coercive force within a rather wide annealing temperature range. And the nano-crystalline soft magnetic alloy provided by the invention has a great potential application prospect because of relatively low cost and excellent soft magnetic performance.

Description

technical field [0001] The invention belongs to the technical field of soft magnetic alloys in functional materials, and in particular relates to an iron-based nanocrystalline soft magnetic alloy with excellent soft magnetic properties and a wide annealing temperature range and a preparation method thereof. Background technique [0002] In 1988, Yoshizawa developed FINEMET iron-based nanocrystalline soft magnetic alloy, which opened a new page in the development history of soft magnetic alloys. Academic and industrial circles have carried out extensive and in-depth research on this new type of alloy with excellent soft magnetic properties. The excellent soft magnetic properties of iron-based nanocrystalline soft magnetic alloys are attributed to the fact that the amorphous matrix and the uniform distribution of nanocrystalline grains on the matrix A special two-phase composite structure, the nano-grains effectively reduce the magnetocrystalline anisotropy of the alloy throug...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/147C22C38/18C22C38/34C22C38/36C21D1/26C21D1/773
Inventor 王寅岗陈夫刚
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com