Morphologies and magnetic properties of α-Fe<sub>2</sub>O<sub>3</sub> nanoparticles calcined at different temperatures
Xuemin He, D.-G. Chen, Kun-Yu Su, Zhen-Fei Yu, Yi Zhang, Wei Zhong
Abstract
particles were important factors affecting the coercivity. Among these, when the calcination temperature was increased from 700 °C to 800 °C, the growth rate of the particle size was significantly faster than that of the crystallite size, and the coercivity increased substantially from 1411 Oe to 2688 Oe.
Topics & Concepts
CoprecipitationCalcinationCoercivityCrystalliteMaterials scienceChemical engineeringParticle sizePolyvinylpyrrolidoneNanoparticleDispersantAntiferromagnetismNanoscopic scaleParticle (ecology)MineralogyRemanenceNanotechnologyDispersion (optics)MagnetizationMetallurgyChemistryMagnetic fieldOrganic chemistryCondensed matter physicsPolymer chemistryGeologyQuantum mechanicsPhysicsOceanographyEngineeringOpticsCatalysisIron oxide chemistry and applicationsNanoparticle-Based Drug DeliveryMagnetic Properties and Synthesis of Ferrites