Influence of annealing on nanocrystal formation in Ni amorphous alloy

Photovoltaic effect in metal foils and crystals of topological insulators

“…These foil samples were annealed in air at 573 K, 623 K, and 673 K temperatures in a special furnace with a temperature gradient less than 1 K cm −1 . 30 Bi foil samples were 12 × 3 × (0.04–0.090) mm 3 . Cross sections of the Ni alloy and Bi foils were prepared by breaking the samples in liquid nitrogen.…”

“…The amorphous alloy formed as a foil with a 60 μm thickness, 15 mm width, and 30 m length. 30 Bi and Sb semimetals of 99.9999% purity were used as source materials to obtain the bulk single crystals and polycrystalline foils. Before using the Bi charge, it was purified by drop cleaning in vacuum.…”

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“…Е.О. Патона разработана технология и создано оборудование для получения аморфных и нанокристаллических материалов с использованием плазменно-дугового источника плавления металла методом спиннингования [34][35][36][37][38]. Плавка осуществляется в медном водоохлаждаемом тигле, который выполнен в виде перевернутого усеченного конуса.…”

Fabrication of Bismuth Films by a Melt Spinning Method and the Influence of Annealing on Their Microstructure

“…It is assumed that quantum effects in Bi can be detected at the nanostructure sizes of ~50 nm, which are larger than in other metals and semiconductors [11], resulting in intensive analysis of properties and development of fabrication methods of nanocrystalline Bi in the form of wires and ribbons [12,13]. Nanocrystals can be obtained by annealing of amorphous metal alloys [14,15]. Generally, amorphous metal alloys are fabricated by a melt spinning method; however, the data on application of this method to pure metals are limited [16,17].…”