Synthesis, structural and magnetic characterization of soft magnetic nanocrystalline ternary FeNiCo particles

TOPARLI Ç., Ebin B., Gürmen S.

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, cilt.423, ss.133-139, 2017 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 423
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1016/j.jmmm.2016.09.005
  • Dergi Adı: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.133-139
  • Anahtar Kelimeler: FeNiCo nanoparticles, Magnetic materials, Electron microscopy, Magnetic properties, Ultrasonic spray pyrolysis, Hydrogen reduction, ULTRASONIC SPRAY-PYROLYSIS, HYDROGEN REDUCTION, ALLOY PARTICLES, NANOCOMPOSITE PARTICLES, NANOPARTICLES, MICROSTRUCTURE, SIZE
  • Orta Doğu Teknik Üniversitesi Adresli: Hayır

Özet

The present study focuses on the synthesis, microstructural and magnetic properties of ternary FeNiCo nanoparticles. Nanocrystalline ternary FeNiCo particles were synthesized via hydrogen reduction assisted ultrasonic spray pyrolysis method in single step. The effect of precursor concentration on the morphology and the size of particles was investigated. The syntheses were performed at 800 degrees C. Structure, morphology and magnetic properties of the as-prepared products were characterized through X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and vibrating sample magnetometer (VSM) studies. Scherer calculation revealed that crystallite size of the ternary particles ranged between 36 and 60 nm. SEM and TEM investigations showed that the particle size was strongly influenced by the precursor concentration and Fe, Ni, Co elemental composition of individual particles was homogeneous. Finally, the soft magnetic properties of the particles were observed to be a function of their size.