Sintering temperature dependence on evolving microstructure and magnetic characteristics of cobalt ferrites

Pauzi, Nurul Atiqah Mohd; Nazlan, Rodziah; Anuar, N.M.K.; Jusoh, Mohamad Ashry; Ibrahim, Idza Riati; Shafiee, Farah Nabilah

doi:10.1016/j.matpr.2021.11.640

Cited by 2 publications

(2 citation statements)

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“…Nonetheless, the saturation value is improved by the enlarged grains and possibly the higher densification of the film. [2,29] The increase of M S and the concurrent decrease of the coercive field exclude the possibility of a significant effect of secondary phases generated by Si ions substitutions on the magnetic properties. [49]…”

Section: Magnetic Propertiesmentioning

confidence: 94%

“…It is a spinel ferrite possessing a unique combination of high magnetization, chemical stability, and magnetostriction properties. [1][2][3] These features make cobalt ferrite an ideal candidate for various technological applications, including magnetic storage media, microwave devices, magnetic sensors, and spintronics. [4][5][6][7] However, the successful deposition of cobalt ferrite films with controlled properties remains a challenge, and conventional deposition techniques often involve high-temperature processing, limiting the choice of compatible substrates and additional integration possibilities.…”

Section: Introductionmentioning

confidence: 99%

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Inkjet Printing of Cobalt Ferrite for Hard Ferromagnetic Thick Films Manufacturing

Mariani,

Cervellera,

Migliori

et al. 2024

Adv Eng Mater

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Inkjet printing is a versatile and cheap technique for the fabrication of films, offering unique advantages in terms of scalability, precision, and customization. In recent years, there has been a growing interest in utilizing inkjet printing technology for the deposition of magnetic films with tailored properties. Cobalt ferrite (CoFe2O4) stands out due to its exceptional magnetic properties, including high coercivity, saturation magnetization, and excellent chemical stability. This paper presents a comprehensive study on the inkjet printing of cobalt ferrite magnetic films, focusing on the manufacturing process, especially on the different factors that could lead to stable multilayer depositions to achieve high thicknesses: ink solid loading, drop spacing, substrate temperature, and interlayers drying. Finally, the microstructure of the samples is investigated to identify the occurring defects after sintering between 800 and 1000 °C. The magnetic properties of the films are determined, revealing a maximum coercivity of 1.98 kOe and a magnetic saturation of 78.25 emu cm−3.

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Section: Magnetic Propertiesmentioning

confidence: 94%