Biomedical Engineering Reference
In-Depth Information
Reactive mechanical milling can be realized by reacting two
chemical compounds A and B in a solid-state synthesis that
yields a distinct chemical compound C. This is termed mechanical
synthesis or mechanosynthesis. Reactive milling can also be
conducted by milling metal powders in ball mills filled with a
reactive gas.
4.1.1.3 Mechanicalalloying
Mechanical alloying, the main mechanical process, was developed
in the 1970s at the International Nickel Co as a technique for
dispersing nanosize inclusions into nickel-based alloys (Fig. 4.4)
[3]. During the last years, the MA process has been successfully used
to prepare a variety of alloy powders including powders exhibiting
supersaturated solid solutions, quasicrystals, amorphous phases,
and nano-intermetallic compounds [25, 45]. MA technique has been
proved a novel and promising method for alloy formation [26, 36,
42, 44].
Figure 4.4
Mechanical alloying process [3].
