Synthesis, characterization and microwave properties of Ni-Co-P hollow spheres

被引：31

作者：

Li, Zhibin ^{[1
,2
]}

Deng, Yida ^{[1
]}

Shen, Bin ^{[1
]}

Liu, Lei ^{[1
]}

Hu, Wenbin ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200030, Peoples R China

[2] Shaoxing Univ, Dept Phys & Informat Engn, Shaoxing 312000, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 491卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

Metals; Chemical synthesis; Magnetic measurements; ABRASIVE WEAR-RESISTANCE; ABSORPTION PROPERTIES; COATINGS; TEMPLATE; BEHAVIOR; POWDER;

D O I：

10.1016/j.jallcom.2009.10.198

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ni-Co-P hollow spheres (HSs) with different component ratios were fabricated by autocatalytic reduction method. With an increase of cobalt content, coercivity of hollow spheres increased because of Co hcp structure with high magnetocrystal anisotropy. The microwave properties of Ni-Co-P HSs were investigated in the range of 2-18 GHz. Both permittivity and permeability ofspheres-wax composites increased with the increase of cobalt content. For the Ni-Co-P hollow spheres, the minimum reflection loss (RL) (-41.7 dB)was found at 6.3 GHz with a thickness of 2.5 mm. Additionally, with the increase of cobalt content, the minimal reflection loss increases obviously, which means that introducing Co into Ni improves the microwave absorption capability. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：406 / 410

页数：5

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