Tailoring of structural and magnetic properties by substitution of copper in cobalt chromium ferrites

Zeeshan, Talat; Anjum, Safia; Waseem, Salma; Mustufa, Lubna

doi:10.1016/j.ceramint.2018.06.235

Cited by 20 publications

(6 citation statements)

References 25 publications

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“…The bandgap energy ( E g ) was calculated by the Tauc’s relation α h ν = A false( h ν − E g false) n where α and A denote the absorption coefficient and transition probability constant, respectively. n = 1/2 and 1 for indirect and direct band gaps, respectively . The absorption coefficient can be calculated by using the following relation a = 2.303 log ( A ′ ) t where A ′ is the absorbance and t is the width of the substance having a value of unity.…”

Section: Resultsmentioning

confidence: 99%

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Comprehensive Improvement of Various Features of Cu–Cd Ferrites (Cu_0.5Cd_0.5Fe_2–xCe_xO₄) by Cerium (Ce³⁺) Ion Substitution

Fatima,

Hasan,

Akhtar

et al. 2023

ACS Omega

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Cerium (Ce 3+ ) substitution in Cu−Cd spinel nanoferrites with the compositional formula Cu 0.5 Cd 0.5 Fe 2−x Ce x O 4 (x = 0.0, 0.0125, 0.0250, 0.0375, 0.050) was performed by the hydrothermal route. The structural, morphological, optical, electrical, and dielectric properties of Ce-substituted Cu−Cd ferrites were explored. X-ray diffraction revealed the single-phase cubic structure of all nanoferrites. The average crystallite size (72.42−11.61 nm) and lattice constant (8.419−8.449 Å) were observed for the synthesized ferrites. The surface shapes of particles were determined by scanning electron microscopy. The substitution was also verified by Fourier transform infrared spectroscopy and ultraviolet−visible spectrophotometry. The semiconducting behavior of ferrites was determined from their electrical properties, such as direct current (DC) electrical resistivity. The Curie temperature was observed at 523 K temperature for all nanoferrites. The dielectric constant and dielectric loss significantly indicated the reducing behavior with an increase in the cerium concentration. The sample Cu 0.5 Cd 0.5 Fe 1.975 Ce 0.025 O 4 resulted in the lowest optical bandgap energy, DC resistivity, and dielectric losses. The nature of the electrical resistivity and dielectric constants indicate that the designed materials are highly appropriate for the design of microwave gadgets.

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Section: Resultsmentioning

confidence: 99%

“…n = 1/2 and 1 for indirect and direct band gaps, respectively. 48 The absorption coefficient can be calculated by using the following relation…”

Section: Uv−visible Spectroscopymentioning

confidence: 99%

Comprehensive Improvement of Various Features of Cu–Cd Ferrites (Cu_0.5Cd_0.5Fe_2–xCe_xO₄) by Cerium (Ce³⁺) Ion Substitution

Fatima,

Hasan,

Akhtar

et al. 2023

ACS Omega

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“…Exemplos de ferritas com excelentes propriedades para diversas aplicações são as de cobalto e cobre. A de cobalto (CoFe 2 O 4 ) é um óxido com estrutura cristalina do tipo espinélio inverso, que apresenta moderada magnetização de saturação (cerca de 4.105 J/m 3 ), excelente estabilidade química e elevada dureza, sendo um ótimo material para mídias de gravação e outras aplicações tecnológicas (ZEESHAN, T. et al, 2018;MANE et al, 2011).…”

Section: Introductionunclassified

“…As propriedades físicas também dependem de vários outros fatores, como temperatura e tempo de sinterização, taxas de aquecimento e resfriamento, etc. (ZEESHAN et al, 2018).…”

Section: Introductionunclassified

Engenharia de materiais: materializando o futuro

Lara¹

2022

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Esta obra é licenciada por uma Licença Creative Commons: Atribuição-NãoComercial-SemDerivações 4.0 Internacional -(CC BY-NC-ND 4.0). Os termos desta licença estão disponíveis em: . Direitos para esta edição cedidos à Pimenta Cultural. O conteúdo publicado não representa a posição oficial da Pimenta Cultural.Figura 3 -(a) Macromorfologia e (b) distribuição de tamanho dos poros no scaffold. Fonte: adaptado com permissão de Zhou et al. (2015).

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“…Consequentemente, a síntese de ferrita cobalto-cobre pode apresentar uma distorção. Esse tipo deve produzir alta coercividade, o que o torna um material magnético duro, útil para a gravação de mídias (ZEESHAN et al, 2018). Mane et.…”

Section: Introductionunclassified

Uso da hidroxiapatita no tratamento superficial de implantes dentários

Couto¹,

Andrade²

2022

Engenharia De Materiais: Materializando O Futuro

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Tailoring of structural and magnetic properties by substitution of copper in cobalt chromium ferrites

Cited by 20 publications

References 25 publications

Comprehensive Improvement of Various Features of Cu–Cd Ferrites (Cu_0.5Cd_0.5Fe_2–xCe_xO₄) by Cerium (Ce³⁺) Ion Substitution

Comprehensive Improvement of Various Features of Cu–Cd Ferrites (Cu_0.5Cd_0.5Fe_2–xCe_xO₄) by Cerium (Ce³⁺) Ion Substitution

Engenharia de materiais: materializando o futuro

Uso da hidroxiapatita no tratamento superficial de implantes dentários

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Tailoring of structural and magnetic properties by substitution of copper in cobalt chromium ferrites

Cited by 20 publications

References 25 publications

Comprehensive Improvement of Various Features of Cu–Cd Ferrites (Cu0.5Cd0.5Fe2–xCexO4) by Cerium (Ce3+) Ion Substitution

Comprehensive Improvement of Various Features of Cu–Cd Ferrites (Cu0.5Cd0.5Fe2–xCexO4) by Cerium (Ce3+) Ion Substitution

Engenharia de materiais: materializando o futuro

Uso da hidroxiapatita no tratamento superficial de implantes dentários

Contact Info

Product

Resources

About

Comprehensive Improvement of Various Features of Cu–Cd Ferrites (Cu_0.5Cd_0.5Fe_2–xCe_xO₄) by Cerium (Ce³⁺) Ion Substitution

Comprehensive Improvement of Various Features of Cu–Cd Ferrites (Cu_0.5Cd_0.5Fe_2–xCe_xO₄) by Cerium (Ce³⁺) Ion Substitution