Nanocrystalline flexible sheet and preparation method and application thereof

A nano-chip and crystal-flexible technology, applied in the field of nano-crystalline flexible sheet and its preparation, can solve the problem that the charging efficiency of MnZn ferrite and NiZn ferrite is not ideal, cannot have high saturation magnetic induction at the same time, and cannot meet the requirements of use. To achieve the effect of promoting Fe enrichment and nucleation, improving the uniformity of the microstructure, and increasing the ability to form amorphous

Pending Publication Date: 2022-01-21

GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +2

0 Cites 0 Cited by

AI-Extracted Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the unsatisfactory charging efficiency of MnZn ferrite and NiZn ferrite used as wireless charging materials in the prior art, and the large size of the iron core, w...

Method used

Small atom B, C element can form atomic radius mismatch with large atomic size Fe, Cu element, Si element and B, C also can form atomic radius mismatch, Fe element and Si element, Fe element and B element, Negative mixing heat can be formed between Fe element and C element, Si element and Cu element, and C element and Si element. The interaction of these atoms can increase the disorder degree of the nanocrystalline precursor.

[0130] In conjunction with the contents of Table 1, the test results of Comparative Example 1 and Comparative Example 2 illustrate that the present invention contributes to improving the magnetic permeability by optimizing the components of the nanocrystallin...

Abstract

The invention belongs to the technical field of wireless charging material preparation, and particularly relates to a nanocrystalline flexible sheet and a preparation method and application thereof. The nanocrystalline flexible sheet comprises the following components: Fe, Cu, Si, B, Nb, Mo and C, and further comprises rare earth metal, and the rare earth metal is at least one of Y, Dy, Gd, Tb, Ho, Er and Tm. When the nanocrystalline flexible sheet is used in the field of wireless charging, the power and efficiency of wireless charging can be improved, and the nanocrystalline flexible sheet has the advantage of being small in size and is beneficial for electronic equipment to develop towards the direction of higher frequency, higher efficiency and miniaturization; and meanwhile, the nanocrystalline flexible sheet has the condition of replacing ferrite to serve as a wireless charging material under the high-frequency working condition, and has the advantages of being high in magnetic conductivity, saturation flux density, magnetic conductivity and charging efficiency, low in temperature rise, small in size and the like at the same time.

Application Domain

Circuit arrangementsTransformers/inductances details +2

Technology Topic

Inductive chargingFerrite (magnet) +6

Image

Examples

Experimental program(12)
Comparison scheme(3)
Effect test(2)

Example Embodiment

[0054] The present invention also provides a method of preparing a nanocrystalline flexible sheet, in some embodiments, the relaxation treatment has a temperature of from 280 to 380 ° C, which may be any value of this, such as 300 ° C, 320 ° C, 350 ° C. , 360 ° C, etc., the present invention is not limited, further, when the relative treatment temperature is preferably 300-350 ° C, the obtained nanocrystalline flexible sheet is better, the relaxation treatment is 300-350 ° C. Any value between, for example, 310 ° C, 325 ° C, 335 ° C, 345 ° C, etc., the present invention is not limited thereto.

[0055] In some embodiments, the relaxation treatment is carried out at a magnetic field strength of 10-800 mT, and when the magnetic field strength is 500-800mt, the obtained nanocrystalline flexible sheet is better, and the magnetic field strength is between 500.00mm. Any value, such as 550 mt, 600 mt, 650 mt, 700mt, 750mt, etc., the present invention is not limited.

[0056] The technical solution of the present invention will be described below by way of example.

Example Embodiment

[0057] Example 1

[0058] This embodiment provides a nanocrystalline flexible sheet comprising Fe, Cu, Si, B, Nb, Mo, Cu, Si, B, Nb, Mo and Y, atomic percentage of 76.1 at%, 0.9 at%, 13.5 at%, 7.5at, respectively. %, 1.2AT%, 0.6At% and 0.2 at%, ie molecular formula Fe 76.1 Cu 0.9 Si 13.5 B 7.5 NB 1.2 Mo 0.6 Y 0.2.

[0059] The preparation method of the above nanocrystalline flexible sheet includes the steps of:

[0060] (1) Raw materials, copper raw materials, silicon feedstock, boron iron alloy ingot raw materials, molybdenum iron alloy ingot raw materials, and yttrium materials, in accordance with the percentage of the above-mentioned percentage, cooling at 1320 ° C for 45min, cooled, to obtain alloy ingots; then heating alloy ingots After the molten liquid state, the neutral nozzle is sprayed to the rotating copper bar to obtain a nano-crystal precursor (the process is fast quenching quenching); wherein the width of the nanocrystalline precursor is 60 mm, with a belt thickness of 18 μm.

[0061] (2) Put the nanocrystalline precursor into the heat treatment furnace, heated to 550 ° C, heat after 90min, and then cooled to give a nano-wafer.

[0062] (3) Get the nanocarbon with ultra-thin high temperature resin (700 ° C in organic silicone resin, model SJ-593), then broken, at 100 MT magnetic field strength, 300 ° C after relaxation treatment The time of nanocrystalline flexible sheets, relaxation treatment is 0.5 h.

Example Embodiment

[0063] Example 2

[0064] This embodiment provides a nanocrystalline flexible sheet comprising Fe, Cu, Si, B, NB, Mo, and HO, atomic percentage of 76.4 at%, 0.6 at%, 13At%, 8 at%, respectively, 1.2AT%, 0.5 at% and 0.1 at%, ie the molecular formula Fe 76.4 Cu 0.6 Si 13 B 8 NB 1.2 Mo 0.5 HO 0.1.

[0065] The preparation method of the above nanocrystalline flexible sheet is in Example 1.

PUM

Property	Measurement	Unit
Width	60.0 ~ 100.0	mm
Saturation magnetic induction	1.39	t

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.

Wearable fetus education bellyband system with fetus sound monitoring, fetus movement detection and fetus movement trajectory induction functions

InactiveCN104306018Areduce volumeeasy to wear

Owner:CHONGQING UNIV OF TECH

High-performance integrated magnetic suspension flywheel magnetic bearing digital controller

InactiveCN1719716AFlexible commissioningreduce volume

Owner:BEIHANG UNIV

Classification and recommendation of technical efficacy words

Increase power and efficiency
reduce volume

Quick heating type heat pump water heater for recovering shower waste heat

ActiveCN102607170Ashorten the timeIncrease power and efficiency

Owner:佛山市三角洲电器科技有限公司 +1

Gear head with high precision and high power

PendingCN110091202AIncrease power and efficiencyAvoid poor stability

Owner:漳州东刚精密机械有限公司

Nanocrystalline flexible sheet and preparation method and application thereof

AI-Extracted Technical Summary

Problems solved by technology

Method used

Abstract

Image

Examples

Example Embodiment

Example Embodiment

Example Embodiment

PUM

Description & Claims & Application Information

Similar technology patents

Wind generating set

Video coding apparatus

Compact range feed source suitable for indoor ultra-broadband wireless communication frequency band

Quick heating type heat pump water heater for recovering shower waste heat

Gear head with high precision and high power

Wearable fetus education bellyband system with fetus sound monitoring, fetus movement detection and fetus movement trajectory induction functions

High-performance integrated magnetic suspension flywheel magnetic bearing digital controller

Classification and recommendation of technical efficacy words

Quick heating type heat pump water heater for recovering shower waste heat

Gear head with high precision and high power

Implant release mechanism

Speed reduction box for turbine fracturing

Miniature and Multi-Band RF Coil Design

Automatic washing and dewatering combined device of rotary type mop

Optical imaging system