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Magnetic resonance mutation spectrum material and preparation method thereof

A magnetic resonance and spectroscopy technology, applied in the direction of magnets, magnetic objects, electrical components, etc.

Active Publication Date: 2016-02-24
SHENZHEN LEAGUER ANTI COUNTERFEITING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are few reports on obtaining magnetic resonance variation spectrum materials by changing the crystal form of nanomaterials

Method used

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  • Magnetic resonance mutation spectrum material and preparation method thereof
  • Magnetic resonance mutation spectrum material and preparation method thereof
  • Magnetic resonance mutation spectrum material and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0030] The invention provides a method for preparing a magnetic resonance variation spectrum material, comprising the following steps:

[0031] 1) Sample loading: put iron-platinum powder in a heat-resistant crucible, put it in an induction compound heating powder making device, fill it with argon after vacuuming, and keep the argon pressure at 1KPa;

[0032] In this step, the induction compound heating powder making device is changed to a self-adjusting laser-induction compound heating powder making device. The induction compound heating powder making device includes a vacuum reactor, a laser generator, an ultrasonic generator, a heat-resistant crucible, and a nozzle. ; Its radiation source has been improved and added an ultrasonic radiation source; the heat-resistant crucible is preferably Al 2 o 3 heat-resistant crucible;

[0033] 2) Melting: start the high-frequency induction power supply heating, the input power is 10KW, and heat until the iron and platinum powder melt;...

Embodiment 1

[0039] A method for preparing a magnetic resonance variation spectrum material, comprising the steps of:

[0040] 1) Sample loading: put iron-platinum powder in a heat-resistant crucible, put it in an induction compound heating powder making device, fill it with argon after vacuuming, and keep the argon pressure at 1KPa;

[0041] 2) Melting: start the high-frequency induction power supply heating, the input power is 10KW, and heat until the iron and platinum powder melt;

[0042] 3) Irradiation: Introduce ultrasonic-laser composite source, ultrasonic 25Khz, laser power 2900W, spot diameter 5mm, adjust the distance between the argon shielding gas nozzle and the metal liquid surface to 20mm, generate plasma arc, and receive ultrasonic irradiation and laser The irradiated iron-platinum fume is cooled on the cooling wall to obtain black powder, which is the magnetic resonance variation spectrum material.

[0043] The magnetic resonance variation spectrum material that embodiment ...

Embodiment 2

[0045] A method for preparing a magnetic resonance variation spectrum material, comprising the steps of:

[0046] 1) Sample loading: put iron-platinum powder in a heat-resistant crucible, put it in an induction compound heating powder making device, fill it with argon after vacuuming, and keep the argon pressure at 1KPa;

[0047] 2) Melting: start the high-frequency induction power supply heating, the input power is 10KW, and heat until the iron and platinum powder melt;

[0048] 3) Irradiation: Introduce an ultrasonic source, ultrasonic 25Khz, adjust the distance between the argon shielding gas nozzle and the metal liquid surface to 20mm, generate a plasma arc, and cool the iron-platinum fume irradiated by ultrasonic and laser on the cooling wall , to obtain black powder, that is, magnetic resonance variation spectrum material.

[0049] The magnetic resonance variation spectrum material that embodiment 2 obtains is analyzed its appearance through JSM-35C type transmission el...

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Abstract

The invention provides a magnetic resonance mutation spectrum material and a preparation method thereof, and in particular, the preparation method of the magnetic resonance mutation spectrum material comprises the following steps: 1) sample loading: iron platinum powder is put in an induction composite heating powder preparation device containing a heat resisting crucible; argon is charged after vacuumizing; and the pressure of the argon is kept at 1 KPa; 2) melting: a high-frequency induction power supply is started for heating to melt the iron platinum powder; and the input power is 10 KW; and 3) irradiation:an ultrasonic source or an ultrasonic wave-laser composite source radiation source is leaded in to adjust a distance between an argon shielding gas nozzle and a molten metal level as 20-25 mm to obtain black powder, namely the magnetic resonance mutation spectrum material. The magnetic resonance mutation spectrum material with different crystal form ratios is obtained through changing a laser-induction composite heating powder preparation device.

Description

technical field [0001] The invention relates to the field of magnetic resonance materials, in particular to a magnetic resonance material and a preparation method thereof. Background technique [0002] NMR applications can basically be divided into two categories: one is NMR spectroscopy (spectroscopy); the other is NMR imaging (scanners). Both types of applications require a strong and stable magnetic field B0. They are based on common physical and mathematical principles, and share many data acquisition and data processing technologies, but the application focus and ultimate goal of the two are different. To avoid confusion, using academic and industrial terminology, in the description of the present invention, "NMR" stands for nuclear magnetic resonance spectroscopy (Nuclear Magnetic Spectrometer), and "MRI" stands for Nuclear Magnetic Resonance Imaging (Nuclear Magnetic Scanner). NMR is often used in chemical, physical and pharmaceutical laboratories to obtain the nucl...

Claims

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Application Information

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IPC IPC(8): B22F9/06H01F7/00
CPCB22F9/06B22F2009/065B22F2999/00H01F7/00B22F2202/11
Inventor 焦鑫吴克墀叶丽芬柳振宇粱娟
Owner SHENZHEN LEAGUER ANTI COUNTERFEITING TECH
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