"

Cookies ussage consent

I agree.

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

Enhanced microwave absorption properties of Y doped LaMnO 3 prepared by a solid state reaction method

WEIHONG MA1,* , QUANXI CAO1, BO WANG1, ZI YANG1, TAIPENG ZHOU1, QUN ZHAO1

Affiliation

  1. School of Advanced Materials and Nanotechnology, Xidian University, Xi’an, Shaanxi 710126, China Y

Abstract

Y doped LaMnO3 powders with doping ratios of 5%, 10%, and 15% were prepared by a solid state reaction method and tested as microwave absorption material. X-ray diffraction measuring results indicated that the powders possess a perovskite struc ture at all doping ratios. The average size of the powders was approximately 3 μm according to scanning electron microscopy. The complex permittivity and permeability were measured at X band (8.2-12.4 GH z) by a vector network analyzer. The dielectric loss ta ngent (tan δ ε), magnetic loss tangent (tan δ μ ), and reflectivity frequency curves a re presented. 10 at% Y doped LaMnO3 with a thickness of 0.8 mm had an effective 10 dB bandwidth of 3 GHz, and the highest absorption peak (45 dB); this is comparable to the chara cteristics of other advanced manganate based microwave absorption materials..

Keywords

Ydoped LaMnO3, Microwave absorption material, Electromagnetic loss.

Citation

WEIHONG MA, QUANXI CAO, BO WANG, ZI YANG, TAIPENG ZHOU, QUN ZHAO, Enhanced microwave absorption properties of Y doped LaMnO 3 prepared by a solid state reaction method, Optoelectronics and Advanced Materials - Rapid Communications, 10, 3-4, March-April 2016, pp.180-184 (2016).

Submitted at: March 21, 2015

Accepted at: April 5, 2016