| dc.description.abstract | Nd-Fe-B bonded magnet is made by mixing the NeodymiumIron Boron (Nd-Fe-B)
magnet powder type MQP 16-7B+ with binder material, celluna WE-518 which
has non-magnetic characteristic. The composition of powder and binder is 97:3 %
in weight of the total mass of the sample which is 3 grams. The mixing process is
done with hand mixing method. This mixed materials then casted by using hand
press with the pressure 30.000 kPa and drained in varies temperature of 100ºC,
150ºC, 180ºC and 200ºC for an hour and used varies of restraint time in 30
minutes, 1 hour, 2 hours and 4 hours for temperature 100ºC in vacuum and
atmosphere condition. Physic characteristic tested is 6,715 g/cm3 of bulk density;
and surface microstructure can be seen by using the Scanning Electron
Microscope (SEM) which is not contrast in microstructure while making bonded.
The magnetic characteristic is done by measuring the magnetic force with
Gaussmeter and the hysteretic curve measured by using the Vibrating Sample
Magnetometer. Coercivity of NdFeB-type magnet powders MQP-B + is 485.6
kOe. | en_US |
