The influence of polymer on Fe 3O 4 by high energy ball milling Fe 3O 4/polymer system is investigated by using 57Fe Mssbauer spectroscopy and XRD,and superparamagnetic α-Fe 2O 3 is found in the products.
A coal tar pitch-derived carbonaceous mesophase(CM) was treated in a high energy ball mill apparatus. The structures for the raw and the as-milled CMs were characterized by X ray diffraction and Laser-Raman spectroscopic techniques,and the frictional behavior for the CMs were investigated by using a SRV high temperature friction and wear tester.
A 50Fe + 25Al + 25Si powder mixture was mechanically alloyed in a high-energy ball mill, and the products of the solid-state reactions were characterized by x-ray diffraction and magnetic measurements.
The process of mechanical alloying consists of intimate mixing and mechanical working of elemental powders in a high-energy ball mill.
The ordered f c c intermetallic compound Ni3Si was mechanically milled in a high-energy ball mill.
In this work, aluminium powder AA6061 is mixed with silicon and aluminium nitrides in a conventional mixer and in a high-energy ball mill to obtain composite powders that are subsequently uniaxially cold pressed and hot extruded.
The as-cast material was then rapidly solidified by melt spinning and mechanically milled using a high-energy ball mill.