Preparation and characterization of barium hexaferrite powders produced by decomposition of organometallic complexes

Journal Article · Wed Dec 31 23:00:00 EST 1986 · Advanced Ceramic Materials; (USA)

DOI:https://doi.org/10.1111/j.1551-2916.1987.tb00055.x· OSTI ID:6015903

Chandrasekhar, R; Charles, S W; O'Grady, K ^[1]; Moerup, S; van Wonterghem, J ^[2]

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1. Univ. College of North Wales, Bangor (England)
2. Technical Univ. of Denmark, Lyngby (Denmark)

Barium hexaferrite (BaFe{sub 12}O{sub 19}) particles have been prepared by the decomposition of an organometallic salt. The properties of the ferrite particles have been investigated by x-ray diffractometry, Moessbauer spectroscopy, scanning electron microscopy, and magnetic measurements. The size of the particles produced lie between 0.1 and 0.5 {mu}m. To form the hexaferrite the decomposition product must be heated to > 620{degree}C. Typical values of the saturation magnetization, coercivity, and remanence ratio of the hexaferrite particles are 333 kA{center dot}m{sup {minus}1} (63 emu/g{sup {minus}1}), 320 kA{center dot}m{sup {minus}1} (4 kOe), and 0.49, respectively.

• OSTI ID: 6015903
• Journal Information: Advanced Ceramic Materials; (USA), Journal Name: Advanced Ceramic Materials; (USA) Vol. 2:1; ISSN 0883-5551; ISSN ACEME
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
656002 -- Condensed Matter Physics-- General Techniques in Condensed Matter-- (1987-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHEMICAL PREPARATION
COHERENT SCATTERING
DATA
DIFFRACTION
ELECTRON MICROSCOPY
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
FERRIMAGNETIC MATERIALS
FERRITES
INFORMATION
INTERMEDIATE MASS NUCLEI
IRON 57
IRON COMPOUNDS
IRON ISOTOPES
ISOTOPES
MAGNETIC MATERIALS
MAGNETIC PROPERTIES
MATERIALS
MICROSCOPY
MOESSBAUER EFFECT
NUCLEI
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
OXYGEN COMPOUNDS
PARTICLE SIZE
PHYSICAL PROPERTIES
SCANNING ELECTRON MICROSCOPY
SCATTERING
SIZE
STABLE ISOTOPES
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION