BONDING METHOD TO OVERCOME LIMIT ON CRITICAL SIZE OF BULK AMORPHOUS ALLOY

摘要

The present invention relates to a bonding method capable of producing a bulk amorphous alloy with a size larger than a critical size by bonding amorphous alloys in a bulk state regardless of the number, shape, and the like of the amorphous alloys. The bonding method includes: a preparation step of preparing the amorphous alloy in the bulk state at a size in which the smallest one among a width, a length, and a height is 0.5 mm or greater as a raw material; a heating step of heating at least one between a lower plate and an upper plate of a press device or a specimen based on a glass transition temperature (T_g) and a crystallization starting temperature (T_x) ranging from a temperature of T_g - 0.2 T_g to a temperature lower than T_x; a bonding step of placing the amorphous alloys on the press device and bonding the amorphous alloys by pressing the amorphous alloys while maintaining the heating temperature; and a cooling step of cooling the bonded amorphous alloys. The bonding method of the present invention is capable of forming the amorphous alloys with a size larger than the critical size by bonding the materials regardless of the number, the shape and the like of the amorphous alloys in the bulk state, thereby obtaining an effect of improving the utilization of the amorphous alloys as a structural material.;COPYRIGHT KIPO 2017