A Rapid Quenching Technique for the Preparation of Thin Uniform Films of Amorphous Solids

Observation of Inclusion in Aluminum Deoxidized Iron.

“…In both experiments, the iron-oxygen alloy was deoxidized with aluminum deoxidizer while heating at 1 873 K. The deoxidized iron was solidified using 3 different cooling methods: (1) the ultra-rapid cooling using twin rollers (ultra-rapid cooling), (2) the quenching of iron into copper mold, and (3) the quenching of the iron-bearing crucible in a water bath. The most rapid cooling rate achieved with (1), which was probably about 10 5 K/s, 12) followed (2) and (3).…”

“…The most rapid cooling rate which could be achieved with the ultra-rapid cooling method that was probably about 10 5 K/s 12) followed by the copper mold quenching and water quenching in this order.…”

Effect of heat treatment on the shape of the hyperfine field induction distributions and magnetic properties of amorphous soft magnetic Fe62Co10Y8B20 alloy

“…These materials are characterized by almost zero magnetostriction, low total core losses during the magnetization process, a low value of the coercive fi eld, and high initial magnetic permeability and magnetic saturation [3]. Initially, such alloys were prepared only in the form of thin tapes, having an approximate thickness of 40 microns, which greatly limited their applications [4]. The systematic preparation of bulk amorphous alloys became possible when A. Inoue and colleagues developed three empirical criteria, described as follows.…”

Evaluation of the Microstructure and Magnetic Properties of Fe73Me5Y3B19 (Where Me = Ti or Nb) Amorphous Alloys

“…The first amorphous materials, in the form of a ribbon were obtained in the 1960s by three research groups, led by Pond and Maddin, Chen, Miller and Masumoto, and again Maddin [1,2]. The fabricated material, in the form of a ribbon with thickness of a few micrometres started a revolution in the basic research of amorphous materials exhibiting soft magnetic properties.…”