2016
DOI: 10.1016/j.jmmm.2016.06.041
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Effect of 60Co gamma irradiation on dielectric and complex impedance properties of Dy3+ substituted Ni–Zn nanoferrites

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Cited by 36 publications
(12 citation statements)
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“…This inuence may be due to the movement of gamma rays inside the materials, transporting its power in a compact time interval within exible contact with particles, 53 which leads to modication in the irradiated material by forcing the atoms from their initial conditions, and dividing particles. 54 Additionally, with increase in irradiation dose the samples showed a tendency to become amorphous ( Fig. 5) and this is because the crystallite size is independent of the crystallinity of the sample.…”
Section: Methodsmentioning
confidence: 96%
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“…This inuence may be due to the movement of gamma rays inside the materials, transporting its power in a compact time interval within exible contact with particles, 53 which leads to modication in the irradiated material by forcing the atoms from their initial conditions, and dividing particles. 54 Additionally, with increase in irradiation dose the samples showed a tendency to become amorphous ( Fig. 5) and this is because the crystallite size is independent of the crystallinity of the sample.…”
Section: Methodsmentioning
confidence: 96%
“…The enhanced activity of the prepared nanocomposite against all tested microorganisms aer gamma irradiation was due to the reduction in crystallite size (from 44.2 nm to 17.4 nm) aer 100 kGy irradiation. 53,54 The XRD patterns of nonirradiated and gamma-irradiated Co x Ni 1Àx Fe 2 O 4 /SiO 2 /TiO 2 ; x ¼ 0.9 nanocomposite with different doses (25 kGy, 50 kGy and 100 kGy) are shown in Fig. 5.…”
Section: Methodsmentioning
confidence: 99%
“…Para cada catalisador foram ilustradas as curvas acumulativas da faixa de distribuição das partículas (curvas em formato de 'S') e o histograma de frequência da distribuição das populações de partículas com mesmo diâmetro. A distribuição do tamanho das partículas dos catalisadores apresentaram comportamento monomodal e levemente assimétrico, pois todos os valores centrais da média d (4,3), mediana d50 e moda foram muito próximos, evidenciando uma pequena assimetria para todas as amostras dos catalisadores. O catalisador sem tratamento térmico (amostra S1) apresentou tamanho de aglomerados de partículas com distribuição larga, compreendida entre 30 e 180 nm, com diâmetro médio de 66,6 nm.…”
Section: Resultsunclassified
“…As nanopartículas (NPs) de ferritas do tipo espinélio são materiais estáveis térmica e quimicamente, de baixo custo, de fácil processamento, com boas propriedades magnéticas, baixa perda dielétrica e elevada resistividade elétrica. Possuem amplas aplicações tecnológicas, tais como produção de sensores eletrônicos, dispositivos de memória, gravação magnética, portadores de drogas na biomedicina, dispositivos de ressonância magnética, ferrofluido e na produção de catalisadores [1][2][3]. As propriedades estruturais, elétricas e magnéticas das ferritas dependem fortemente do controle da síntese, pois, devido à elevada energia de superfície, as nanopartículas de ferritas podem facilmente se aglomerar de forma irregular.…”
Section: Introductionunclassified
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