Particle and Aerosol Research Vol. 6, No. 1, March 2010 |
ISSN : 1738-8716 (Print) ISSN : 2287-8130 (Online) |
Preparation of C-plane oriented BaFe12O19 film by electrospray deposition of colloidal precursor particles
ÀÌ Çý ¹®*, ±è ¿ë Áø Çѱ¹±â°è¿¬±¸¿ø ºÎ¼³ Àç·á¿¬±¸¼Ò ±â´ÉÀç·á¿¬±¸º»ºÎ (2010³â 2¿ù 9ÀÏ Åõ°í; 2010³â 3¿ù 3ÀÏ ¼öÁ¤; 2010³â 3¿ù 5ÀÏ °ÔÀçÈ®Á¤)
Abstracts
New process consisting of electrospray and epitaxial crystal growth processes was applied to the preparation of
c-plane oriented barium ferrite (BaFe12O19) thin film for high density magnetic recording media. Sodium citrate aided
process was proper to preparation of amorphous BaFe12O19 nanoparticles with geometric mean diameter of 3 nm and
geometric standard deviation of 1.1. The electrospray was applicable to the prepare of amorphous BaFe12O19 thin film
on a substrate, and the film thickness could be controlled by adjusting the electrospray deposition time. The c-plane
oriented BaFe12O19 thin film was successfully prepared by 3 step annealing process of the BaFe12O19 amorphous film
on a sapphire(Al2O3) substrate; annealing at 350¡É for 30 min, annealing at 500¡É for 30 min, and annealing at 700¡É
for 60 min.
Keywords£ºBarium ferrite, Electrospray deposition, Epitaxial crystal growth, Magnetic nanoparticles
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