Material capable of regulating and controlling magnetism and related magnetic effects through bending or twisting, preparation method of material and application of material
A technology related to magnetism and magnetism, which is applied in the direction of magnetic materials, magnetic objects, and the magnetism of inorganic materials, can solve the problems of complex pressure application methods, poor controllability, and application limitations, and achieve good magnetocaloric effect, strong torsion controllability, The effect of simple pressure application
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[0045] Example 1
[0046] A material whose magnetism and related magnetic effects can be tuned by bending or twisting, its chemical formula is Ni 35 Co 15 Mn 33 Fe 2 Ti 15 , the material preparation method comprises the following steps:
[0047] (1) Ingredients: Weigh high-purity raw materials Ni, Mn, Fe, Co, Ti according to the proportions in the chemical formula, and carefully polish off the oxide layer on the surface of the required transition metal elements before ingredients.
[0048] Taking Mn as an example, cleaning and smelting are required before ingredients to ensure the purity of the raw materials. The specific steps are as follows: 1) Put a certain amount of Mn in the beaker, and then pour the diluted 1:1 water by volume into the beaker. Dilute hydrochloric acid solution to make a chemical reaction, and use a glass rod to stir quickly during the reaction; 2) When the oxide disappears and the surface of Mn shows a bright metallic luster, quickly pour out the re...
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[0054] Example 2
[0055] A material whose magnetism and related magnetic effects can be tuned by bending or twisting, its chemical formula is Ni 38 Co 12 Mn 35 Sn 5 , the material preparation method comprises the following steps:
[0056] (1) Ingredients: Weigh high-purity raw materials Ni, Mn, Co and Sn according to the proportions in the chemical formula, and carefully polish off the oxide layer on the surface of the required transition metal elements before ingredients.
[0057] (2) Smelting: smelting is carried out in a water-cooled copper crucible electric arc furnace, and the electric arc furnace is cooled by a circulating water cooling system. The prepared raw materials are carefully placed in the bottom center of the copper crucible, and the positions of different samples are recorded, and then Lower the furnace cover. Before smelting, the furnace must be evacuated. The vacuuming process is divided into two stages: first, use a mechanical pump to pump to about 5...
Example Embodiment
[0061] Example 3
[0062] A material whose magnetism and related magnetic effects can be tuned by bending or twisting, its chemical formula is Ni 34 Co a Mn 30 Fe 5 Ge 10 , the material preparation method comprises the following steps:
[0063] (1) Ingredients: Weigh high-purity raw materials Ni, Mn, Fe, Co and Ge according to the proportions in the chemical formula, and carefully polish off the oxide layer on the surface of the required transition metal elements before ingredients.
[0064] (2) Smelting: smelting is carried out in a water-cooled copper crucible electric arc furnace, and the electric arc furnace is cooled by a circulating water cooling system. The prepared raw materials are carefully placed in the bottom center of the copper crucible, and the positions of different samples are recorded, and then Before lowering the furnace cover to start smelting, the furnace must be evacuated. The vacuuming process is divided into two stages: first, use a mechanical pum...
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