Attractive force of castable iron-platinum magnetic alloys

摘要

Objective: The objective of this study was to examine the attractive force of cast Fe-Pt alloys of varying compositions to dental iron- neodymium-boron magnets. Methods: Ingots of Fe-40 at/100Pt, Fe-38 at/100Pt, Fe-37 at/100Pt alloys were cast in pattern molds for dental magnetic Attachment keepers. The attractive forces of the cast Fe-Pt alloy keepers and magnetic stainless steel keepers to dental Fe_14Nd_2B magnets (MAGFIT and HICOREX) were measured and statistically evaluated. The saturation magnetization of each Fe-Pt alloy was determined by recording the hysteresis loop using a vibrating sample magnetometer under a magnetic field of 1.6 MA/m.