(BaTiO3)(1-x) + (Co0.5Ni0.5Nb0.06Fe1.94O4)(x) nanocomposites: Structure, morphology, magnetic and dielectric properties

Slimani Y., Shirsath S. E., Hannachi E., Almessiere M. A., Aouna M. M., Aldossary N. E., ...Daha Fazla

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, cilt.104, sa.11, ss.5648-5658, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 104 Sayı: 11
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1111/jace.17931
  • Dergi Adı: JOURNAL OF THE AMERICAN CERAMIC SOCIETY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Periodicals Index Online, Aerospace Database, Applied Science & Technology Source, Art Source, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, Computer & Applied Sciences, EBSCO Education Source, INSPEC, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.5648-5658
  • Anahtar Kelimeler: barium titanite, dielectric properties, morphology, nanocomposite, spinel ferrite, structure, DIELECTRIC-PROPERTIES, ELECTRICAL-PROPERTIES, BATIO3, CONDUCTIVITY, SUBSTITUTION, TEMPERATURE, COMPOSITES, FREQUENCY, IMPEDANCE, CERAMICS
  • Çukurova Üniversitesi Adresli: Evet

Özet

Two phase-based nanocomposites consisting of dielectric barium titanate (BaTiO3 or BTO) and magnetic spinel ferrite Co0.5Ni0.5Nb0.06Fe1.94O4 (CNNFO) have been synthesized through solid state route. Series of (BaTiO3)(1-)(x) + (Co0.5Ni0.5Nb0.06Fe1.94O4)(x) nanocomposites with x content of 0.00, 0.25, 0.50, 0.75, and 1.00 were considered. The structure has been examined via X-rays diffraction (XRD) and indicated the occurrence of both perovskite BTO and spinel CNNFO phases in various nanocomposites. A phase transition from tetragonal BTO structure to cubic structure occurs with inclusion of CNNFO phase. The average crystallites size of BTO phase decreases, whereas that for the CNNFO phase increases with increasing x in various nanocomposites. The morphological observations revealed that the porosity is highly reduced, and the connectivity between grains is enhanced with increasing x content. The optical properties have been investigated by UV-vis diffuse reflectance spectroscopy. The deduced band gap energy (E-g) value is found to reduce with increasing the content of spinel ferrite phase. The magnetic as well as the dielectric properties were also investigated. The analysis showed that CNNFO ferrite phase greatly affects the magnetic properties and dielectric response of BTO material. The obtained findings can be useful to enhance the performances of magneto-dielectric composite-based systems.