利用高能行星球磨仪有助于加速形成类结晶物和无定型物质的合金

The mechanical alloying process has been recognized as a novel technique in synthesizing stable and metastable alloys through solid-state reaction without involving melting. However, many invstigators are well aware that the milling time necessary to complete the formation of metastable phases is strongly dependent on the milling conditions such as the type of mill, the size and number of balls and the motion of the balls. For instance, mechanical alloying experiments have been extensively carried out on the Ni-Zr alloy system. The milling time for the completion of the amorphization for Ni:Zr--1:1 powders is distributed over 20-400 h [1-5]. This clearly indicates that the milling conditions affect very sensitively the milling time to produce a final product.