By using EBSD, it becomes possible to analyze the causes of the deterioration of magnetic properties in soft magnetic metal powder compacts.
The magnetic cores made from soft magnetic powder through compression molding undergo an annealing treatment after compaction. Factors that change with annealing temperature were analyzed using EBSD, and the relationship with coercivity was investigated. As a result, a decrease in KAM value and an increase in average grain size were observed with rising annealing temperature, which showed a tendency for coercivity to decrease. By applying these results, it becomes possible to analyze the causes of magnetic property degradation in compressed magnetic cores made from soft magnetic metal powders using EBSD.
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basic information
Investigation Method (1) Soft magnetic powder: Fe-Si powder, average particle size D50=27.2μm (2) Sample preparation method: Coating powder with silicone resin ⇒ Compression molding (3) Annealing conditions: 500, 700, 750℃ (4) Evaluation method: Coercivity measurement (DC BH analyzer) EBSD analysis (crystal orientation (IPF), plastic strain (KAM), grain size measurement)
Price range
P3
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Applications/Examples of results
Application of magnetic property degradation investigation to high-speed motors and automotive reactors.
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Company information
Daitō Analysis Research has been advancing the establishment of an advanced think tank based on highly reliable analysis and analytical techniques accumulated in various material fields, as well as the challenges received from a wide range of industry customers. We aim to solve our customers' various issues with the least cost and the shortest delivery time. Moving forward, we would like to support our customers' research and development using the latest equipment and advanced manpower, and assist in creating products that enrich the future.
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