Efek Waktu Milling Menggunakan Hem (High Energy Milling) Pada Pembuatan Magnet Bonded Pr-Fe-B

Abstract

Powder Praseodymium Iron Boron (PrFeB) Bonded magnetheve been made with the effect of milling time on the microstructure and magnetic properties of powder PrFeB. The raw material used is powder Pr-Fe-B with type-MQEP 16-7 that uses high energy milling with a variation of milling time and milling different conditions .Variation milling times are 0.5 minute, 1 minute, 5 minute,research results obtained average diameter of the smallest powder dry milling treatment of 10 minutes is 14,63µm, the highest density values also 10 minute powder dry milling is 7.84 g / cm ³, and of the highest bulk density testing can dry milling of treatment at 10 min milling time is 5.810 g / cm ³ and most powerful magnetic fields as high as 2136.5 G.