Cobalt ferrite development to sensors enclosering application to RF and microwave

• Grant number: 12/01448-2
• Support type: Regular Research Grants
• Duration: July 01, 2012 - June 30, 2014
• Field of knowledge: Engineering - Aerospace Engineering - Materials and Processes for Aeronautical, Aerospace Engineering
• Principal researcher: Antonio Carlos da Cunha Migliano
• Grantee: Antonio Carlos da Cunha Migliano
• Home Institution: Instituto de Estudos Avançados (IEAv). Departamento de Ciência e Tecnologia Aeroespacial (DCTA). Ministério da Defesa (Brasil). São José dos Campos , SP, Brazil
• Assoc. researchers: Vera Lúcia Othéro de Brito ; Yasmara Conceicao de Polli Migliano

Abstract

This document presents a scientific and technological project for the development and electromagnetic characterization of cobalt ferrite, with additions of copper, barium, manganese and nickel oxides, with potential application in the aerospace area. Computer Aided-Engineering (CAE) software based on Finite Difference Time Domain (FDTD) will be used for microstructure study and evaluation, considering electromagnetic properties measured from microstructure arrangement, formed by ferrites grains and interstitials regions. Cobalt ferrites and cobalt- substituted Ba, Cu, Mn and/or Ni oxides have potential for applications on radio frequency (RF) and microwave sensors packaging. Thus, this work has the goals the development and investigation of intrinsic properties such as complex permeability and permittivity of the CuxCo1-xFe2O4 (x=0; 0,3; 0,7 e 0,9), CoxBa5-xFe24O41 (x=0; 3 e 5), Co0,6Mn0,4Fe2O4 and Co0,9Ni0,1Fe2O4 ferrites, with potential applications in aerospace, such as in RF filters, pulse current transformer, heat and electromagnetic shields (radome), etc. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

BOSS, ALAN FERNANDO NEY; BATISTA, HUDSON DE ARAUJO; FIGUEIREDO DE MELO COSTA, ANA CRISTINA; DA CUNHA MIGLIANO, ANTONIO CARLOS; WILKE, INGRID. Cobalt-Based Ferrites Characterization Using Two Different Terahertz Time-Domain Spectrometers. Journal of Infrared Millimeter and Terahertz Waves, v. 39, n. 11, p. 1127-1139, NOV 2018. Web of Science Citations: 0.

V. L. O. BRITO; S. A. CUNHA; F. F. ARAÚJO; J. P. B. MACHADO; M. R. SILVA; C. B. NUNES. Processing and characterization of a Ni-Co ferrite for sensor applications. Cerâmica, v. 61, n. 359, p. 341-349, Set. 2015.

Filed patent(s) as a result of this research project