Characteristics of a Fe-Co Alloy-Dispersed Al2O3 Nanocomposite Powder Synthesized by a Solution Chemistry Route
- 1. Seoul National University of Science and Technology, Seoul (Korea, Republic of)
- 2. Pusan National University, Busan (Korea, Republic of)
- 3. Kangwon National University, Samcheok (Korea, Republic of)
Description
An optimum route to synthesize a Fe-Co alloy-dispersed Al2O3 nano composite powders and their magnetic properties were investigated. Nano composite powders of Al2O3 and Fe-Co alloys were prepared by the solution chemistry method using Al2O3 and metal nitrates powders. Al2O3/Fe-Co alloy powders were sythesized by calcination at 350℃ and hydrogen reduction at 700℃ of Al2O3, Fe- and Ninitrate powders. Microstructural analysis for the nano composite powders synthesized by ball milling and a hydrogen reduction process showed that the Fe-Co alloy particles with an average size of 20 nm were well distributed on the surface of the Al2O3 powders. The ferromagnetism of the nano-sized Fe-Co alloy contributed to the magnetic properties of the nano composite powders. The increase in coercive force was explained as being due to nano-sized particles of the Fe-Co alloy.
Additional details
Publishing Information
- Journal Title
- Journal of the Korean Institute of Metals and Materials
- Journal Volume
- 51
- Journal Issue
- 2
- Series
- 15 refs, 6 figs
- Journal Page Range
- p. 101-104
- ISSN
- 1738-8228
INIS
- Country of Publication
- Korea, Republic of
- Country of Input or Organization
- Korea, Republic of
- INIS RN
- 48067106
- Subject category
- S36: MATERIALS SCIENCE; S77: NANOSCIENCE AND NANOTECHNOLOGY;
- Descriptors DEI
- ALUMINIUM OXIDES; IRON ALLOYS; MAGNETIC PROPERTIES; NANOSTRUCTURES; REDUCTION; SOLUTIONS; SYNTHESIS
- Descriptors DEC
- ALLOYS; ALUMINIUM COMPOUNDS; CHALCOGENIDES; CHEMICAL REACTIONS; DISPERSIONS; HOMOGENEOUS MIXTURES; MIXTURES; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; TRANSITION ELEMENT ALLOYS