Abstract
Nanoparticles of nickel-zinc ferrite have been prepared by using the citrate precursor method. According to scanning electron microscopy (SEM), the particle size is nanometric for the powder calcined at 350 {sup o}C/3.5 h. The phase formation has been studied by applying different calcining atmospheres, such as air and argon. Pure Ni-Zn ferrite has been observed when calcined in argon at the temperature of 350 {sup o}C. Hysteresis analyses have been done with magnetization of 53.01 emu/g at 350 {sup o}C and obtaining 84.62 emu/g at 1100 {sup o}C due to an optimization of domains formation at high temperature. Measures of reflectivity of Ni-Zn ferrite/epoxy composite have been obtained below 21% at 350 {sup o}C and above 96% at 1100 {sup o}C with a coercive field of 26.61 Oe. Low value of coercive field increased the mobilization of domains wall and increased the radiation absorption.
Lima, U R;
Nasar, M C;
[1]
Nasar, R.S. , E-mail: nasar@terra.com.br;
[1]
Rezende, M C;
[2]
Araujo, J H
[3]
- Departamento de Quimica, UFRN, Natal/RN 59078-970 (Brazil)
- CTA/IAE, Divisao de Materiais, S. J. Campos/SP 12228-904 (Brazil)
- Departamento de Fisica Teorica e Experimental, UFRN, Natal/RN 59078-970 (Brazil)
Citation Formats
Lima, U R, Nasar, M C, Nasar, R.S. , E-mail: nasar@terra.com.br, Rezende, M C, and Araujo, J H.
Ni-Zn nanoferrite for radar-absorbing material.
Netherlands: N. p.,
2008.
Web.
doi:10.1016/j.jmmm.2008.01.022.
Lima, U R, Nasar, M C, Nasar, R.S. , E-mail: nasar@terra.com.br, Rezende, M C, & Araujo, J H.
Ni-Zn nanoferrite for radar-absorbing material.
Netherlands.
https://doi.org/10.1016/j.jmmm.2008.01.022
Lima, U R, Nasar, M C, Nasar, R.S. , E-mail: nasar@terra.com.br, Rezende, M C, and Araujo, J H.
2008.
"Ni-Zn nanoferrite for radar-absorbing material."
Netherlands.
https://doi.org/10.1016/j.jmmm.2008.01.022.
@misc{etde_21122731,
title = {Ni-Zn nanoferrite for radar-absorbing material}
author = {Lima, U R, Nasar, M C, Nasar, R.S. , E-mail: nasar@terra.com.br, Rezende, M C, and Araujo, J H}
abstractNote = {Nanoparticles of nickel-zinc ferrite have been prepared by using the citrate precursor method. According to scanning electron microscopy (SEM), the particle size is nanometric for the powder calcined at 350 {sup o}C/3.5 h. The phase formation has been studied by applying different calcining atmospheres, such as air and argon. Pure Ni-Zn ferrite has been observed when calcined in argon at the temperature of 350 {sup o}C. Hysteresis analyses have been done with magnetization of 53.01 emu/g at 350 {sup o}C and obtaining 84.62 emu/g at 1100 {sup o}C due to an optimization of domains formation at high temperature. Measures of reflectivity of Ni-Zn ferrite/epoxy composite have been obtained below 21% at 350 {sup o}C and above 96% at 1100 {sup o}C with a coercive field of 26.61 Oe. Low value of coercive field increased the mobilization of domains wall and increased the radiation absorption.}
doi = {10.1016/j.jmmm.2008.01.022}
journal = []
issue = {10}
volume = {320}
place = {Netherlands}
year = {2008}
month = {May}
}
title = {Ni-Zn nanoferrite for radar-absorbing material}
author = {Lima, U R, Nasar, M C, Nasar, R.S. , E-mail: nasar@terra.com.br, Rezende, M C, and Araujo, J H}
abstractNote = {Nanoparticles of nickel-zinc ferrite have been prepared by using the citrate precursor method. According to scanning electron microscopy (SEM), the particle size is nanometric for the powder calcined at 350 {sup o}C/3.5 h. The phase formation has been studied by applying different calcining atmospheres, such as air and argon. Pure Ni-Zn ferrite has been observed when calcined in argon at the temperature of 350 {sup o}C. Hysteresis analyses have been done with magnetization of 53.01 emu/g at 350 {sup o}C and obtaining 84.62 emu/g at 1100 {sup o}C due to an optimization of domains formation at high temperature. Measures of reflectivity of Ni-Zn ferrite/epoxy composite have been obtained below 21% at 350 {sup o}C and above 96% at 1100 {sup o}C with a coercive field of 26.61 Oe. Low value of coercive field increased the mobilization of domains wall and increased the radiation absorption.}
doi = {10.1016/j.jmmm.2008.01.022}
journal = []
issue = {10}
volume = {320}
place = {Netherlands}
year = {2008}
month = {May}
}