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首页> 外文会议>Researches in Powder Metallurgy >New Composite Materials, Obtained from Ashes Wastes, with Potential Applications for Electromagnetic Shielding
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New Composite Materials, Obtained from Ashes Wastes, with Potential Applications for Electromagnetic Shielding

机译：从灰烬废物中获得的新型复合材料及其在电磁屏蔽中的潜在应用

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摘要

By an appropriate processing of the pyritic ashes (resulted as residue in the fabrication process of the sulphuric acid) can be valorised the metallic elements. The paper presents the magnetic characteristics of the powders before and after the thermal annealing, and also the flowability and the granulometric characteristics of these powders. Starting from a very low magnetization, a = 3.65 emu/g, the Fe amount of the powders is dramatically increased, after an appropriate thermal treatment, to approx. 34 %, corresponding to σ=128 emu/g. The Fe-enriched powders, embedded in epoxy resin matrix, generate a composites material, which can be used as electromagnetic shields, based on their materials properties (permittivity, permeability and electrical conductivity) in the 1000 - 2500 MHz range.
机译：通过适当处理黄铁矿灰（在硫酸制造过程中作为残留物产生），可以使金属元素增值。本文介绍了粉末在热退火之前和之后的磁特性，以及这些粉末的流动性和粒度特性。从极低的磁化强度（a = 3.65 emu / g）开始，经过适当的热处理，粉末中的Fe含量显着增加。 34％，对应于σ＝ 128emu / g。嵌入到环氧树脂基体中的富铁粉末可生成复合材料，该复合材料可根据其在1000-2500 MHz范围内的材料特性（介电常数，磁导率和电导率）用作电磁屏蔽。

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  • 来源
    《Researches in Powder Metallurgy》|2009年|p.245-250|共6页
  • 会议地点 Craiova(RO);Craiova(RO)
  • 作者

    Wilhelm Kappel; Mirela Maria Codescu; Eugen Manta; Eros Alexandru Patroi; Cristian Morari; Remus Erdei;

  • 作者单位

    RD National Institute for Electrical Engineering ICPE-CA Bucharest,313 Splaiul Unirii, sector 3, Bucharest- 030138, Romania;

    RD National Institute for Electrical Engineering ICPE-CA Bucharest,313 Splaiul Unirii, sector 3, Bucharest- 030138, Romania,Romanian Society for Magnetic Materials, 313 Splaiul Unirii, sector 3,Bucharest - 030138, Romania;

    RD National Institute for Electrical Engineering ICPE-CA Bucharest,313 Splaiul Unirii, sector 3, Bucharest- 030138, Romania,Romanian Society for Magnetic Materials, 313 Splaiul Unirii, sector 3,Bucharest - 030138, Romania;

    RD National Institute for Electrical Engineering ICPE-CA Bucharest,313 Splaiul Unirii, sector 3, Bucharest- 030138, Romania,Romanian Society for Magnetic Materials, 313 Splaiul Unirii, sector 3,Bucharest - 030138, Romania;

    RD National Institute for Electrical Engineering ICPE-CA Bucharest,313 Splaiul Unirii, sector 3, Bucharest- 030138, Romania;

    RD National Institute for Electrical Engineering ICPE-CA Bucharest,313 Splaiul Unirii, sector 3, Bucharest- 030138, Romania,Romanian Society for Magnetic Materials, 313 Splaiul Unirii, sector 3,Bucharest - 030138, Romania;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 粉末冶金（金属陶瓷工艺）;
  • 关键词

    magnetic materials; EM shielding; recovering; ashes wastes;

    机译：磁性材料电磁屏蔽恢复灰烬浪费;

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