Microwave-Induced Heating and Sintering of Ni-Nb-Sn Metallic Glassy Powder in a Single Mode 915 MHz Applicator

摘要

Microwave (MW)-induced heating and sintering process is emerging as an innovative and highly effective material processing method offering many advantages over conventional methods especially for sintering application. In the present study, using a gas atomized Ni59.35Nb34.45Sn6.2 metallic glassy alloy powder, microwave-induced heating and sintering was carried out by using a single mode 915 MHz microwave applicator equipped with an alumina pressure loading system in a separated magnetic (H-) field. The structure and thermal stability of the gas atomized powders and the sintered samples were investigated. A bulk sintered sample with a diameter of 30 mm was produced using a loading pressure of about 5 MPa.