Using a Phillips PANalytical X & # 39;
Pert Pro diffractometer (
Working wavelength of 1.
CuK alpha male)
Collect arc melting polishing spindle X-ray powder diffraction (
Data, by scanning electron microscope and micrograph (
, the use of Zeiss Ultra field-emission microscope, X - and use Oxford instrument
Max EDX silicon drift detector is used to detect the additional elements (
To check the qualitative composition of elements.
Then through the soft magnetic alloy under the environmental pressure and pressure induction melting and melt spinning (
Arc melting casting to produce the ribbon.
Argon jet (
Overpressure is 1 bar)
Used in quartz from small bottle contained in the molten liquid.
Using the typical experimental parameters and conditions are: length of 60 mm, inner diameter is 8 millimeter, diameter of 0.
2 mm quartz small bottle, starting ingot quality as 1 g, the nozzle and wheel vertical Angle of 20 degrees, nozzle spacing for about 1 mm with grinding wheel, wheel diameter is 90 mm, 50 - wheel speed
210 m / s。
Use these general conditions, the thickness of the ribbon is about 20 microns, the total length of about 6 meters (
A single discrete ribbon 10 cm in length)
, width is about 1 mm.
Use the guide magnetometer (quantum interferometer
At room temperature within + / - 5 T induction measuring carbon produced with in-plane saturation magnetization.
Take carbon sample installed on the long diamagnetic PE pipe.
In response to the second derivative of the gradient points collected data, there is no automatic tracking.
B - SQUID with magnetic analysis
H circuit tracer can be measured with the coercive force of (