研究目的
Investigating the influence of Q-switched pulsed Nd:YAG laser interference heating on the microstructure and magnetic properties of amorphous Fe80Si11B9 alloy.
研究成果
The study concluded that laser interference heating of amorphous Fe80Si11B9 alloy produces periodically distributed crystallized micro-areas in an amorphous matrix, with the laser modified regions exhibiting a perpendicular magnetic anisotropy. The as-cast ribbon and laser light irradiated samples are magnetically soft materials.
研究不足
The study is limited to the effects of laser interference heating on the microstructure and magnetic properties of amorphous Fe80Si11B9 alloy, with a focus on the influence of pulse energy and number of consecutive pulses.
1：Experimental Design and Method Selection
The study used Q-switched pulsed Nd:YAG laser interference heating with 120 mJ pulse energy and a variable number of consecutive pulses to examine the microstructure and magnetic properties of amorphous Fe80Si11B9 alloy.
2：Sample Selection and Data Sources
The material used was a 30 lm thick, 25 mm wide ribbon of the amorphous Fe80Si11B9 alloy, prepared by single wheel melt spinning.
3：List of Experimental Equipment and Materials
Q-switched Nd:YAG laser, light microscopy (LM, using 3D KH 8700 Hirox), scanning electron microscopy (SEM, using HITACHI S-3500 N), transmission electron microscopy (TEM, using a JEOL JEM 200 CX and a Tecnai G2 F20), vibrating sample magnetometer (Lake Shore 7300), M?ssbauer spectrometer.
4：Experimental Procedures and Operational Workflow
The pulsed laser interference heating was carried out using a Q-switched Nd:YAG laser. Microstructural analysis was performed using light, scanning, and transmission electron microscopy. Magnetic properties were measured with a vibrating sample magnetometer, and M?ssbauer spectroscopy was used for further analysis.
5：Data Analysis Methods
The data was analyzed using various microscopy techniques and magnetic property measurements to understand the effects of laser interference heating on the amorphous Fe80Si11B9 alloy.
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Transmission electron microscopy
JEOL JEM 200 CX
JEOL
Microstructural analysis
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High-resolution transmission electron microscopy
Tecnai G2 F20
FEI
Detailed investigation of ultra-microstructures
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Vibrating sample magnetometer
Lake Shore 7300
Lake Shore
Measurement of magnetic properties
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Scanning electron microscopy
HITACHI S-3500 N
Hitachi
Examination of surface morphology
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Q-switched Nd:YAG laser
TEM00
Nd:YAG
Laser interference heating of amorphous Fe80Si11B9 alloy
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Light microscopy
3D KH 8700 Hirox
Hirox
Examination of surface morphology
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M?ssbauer spectrometer
Measurement of magnetic properties
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