首页> 外国专利> A METAL MATRIX NANOCOMPOSITE (CONDUCTING MAGNET) AND PROCESS OF SYNTHESIS OF NANOCOMPOSITE BY HIGH ENERGY BALL MILLING

A METAL MATRIX NANOCOMPOSITE (CONDUCTING MAGNET) AND PROCESS OF SYNTHESIS OF NANOCOMPOSITE BY HIGH ENERGY BALL MILLING

机译:金属基纳米复合材料(导电磁体)及高能球磨合成纳米复合材料的工艺

摘要

The present invention relates to, hitherto nonexistent, of a magnetic material which has a very high electrical conductivity.This material is essentially a metal matrix nanocomposite and shall henceforth be called conducting magnet. Invention of this conducting magnet has necessitated the invention of another novel processing technique which is the process of synthesis of nanocomposite by high energy ball milling.The invented material is one whose magnetic properties are superior to softest magnetic material like pure iron of low coercivity ; this invented material has a higher magnetization ability at much higher coercivity level .The degree of magnetization of this material is higher than the pure iron under the action of specific magnetic field, yet having higher coercivity and remnant magnetism.This magnetic material has high electrical conductivity , far greater than that of the pure iron, that is 8.65x104S/cm (lx105S/cm highly pure );invented nanocomposite is made to posses electrical conductivity three times higher than pure iron. The conductivity of the invented material is comparable to that of high conducting EC grade aluminium. This nano composite makes use of carbon nano tubes as reinforcing material in an ultra fine grained iron matrix. The microstructure of this conducting magnetic comprises of grains of almost pure iron with uniformly dispersed multi wall carbon nano tubes; the nano tubes in nanocomposite is distributed in such a way as to from a conducting channel,The electrical conductivity of this material is quite high and is in between aluminum and copper.The conducting magnet contains a threshold value of MWCNT (Multi-walled Carbon Nanotubes) content at which highest degree of magnetization is realized.The invented conducting magnet is meant for use in magnetic devices.Thus it reduces the material content of device of specific functionality which requires both magnetism and conductivity; moreover high coercivity insures a higher life of the device.
机译:迄今为止,本发明涉及具有非常高的电导率的磁性材料。该材料基本上是纳米纳米复合的金属基体,因此被称为导电磁体。这种导电磁体的发明需要发明另一种新的加工技术,即通过高能球磨合成纳米复合材料的方法。本发明的材料是一种磁性能优于低矫顽力的纯铁等最软的磁性材料;本发明的材料在较高的矫顽力水平下具有较高的磁化能力。在特定磁场的作用下,该材料的磁化程度高于纯铁,但具有较高的矫顽力和剩磁。该磁性材料具有较高的电导率,远远大于纯铁,即8.65x104S / cm(高纯1x105S / cm);本发明的纳米复合材料的电导率是纯铁的三倍。本发明材料的电导率可与高导电EC级铝的电导率相比。这种纳米复合材料利用碳纳米管作为超细晶粒铁基体中的增强材料。这种导电磁体的微观结构包括几乎纯净的铁晶粒和均匀分布的多壁碳纳米管。纳米复合材料中的纳米管以一种从导电通道分布的方式分布,这种材料的电导率很高,并且在铝和铜之间。导电磁体包含MWCNT(多壁碳纳米管)的阈值发明内容本发明的导电磁体旨在用于磁性器件中,从而减少了同时需要磁性和导电性的具有特定功能的器件的材料含量;此外,高矫顽力可确保设备的使用寿命更长。

著录项

  • 公开/公告号IN201711004204A

    专利类型

  • 公开/公告日2017-02-17

    原文格式PDF

  • 申请/专利权人

    申请/专利号IN201711004204

  • 发明设计人 MR AKSHAY KUMAR;PROF M K BARERJEE;

    申请日2017-02-06

  • 分类号B02C23/06;

  • 国家 IN

  • 入库时间 2022-08-21 13:38:28

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