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Method for synthesizing NiCoMnIn magnetic memory alloy through combustion reaction at high temperature

A technology of combustion reaction and magnetic memory, which is applied in the field of high temperature synthesis of NiCoMnIn magnetic memory alloy by combustion reaction, can solve the problems of high brittleness of magnetic memory alloy, and achieve the effects of high toughness, mild conditions and easy realization.

Active Publication Date: 2018-12-07
DALIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problems of high brittleness and one-way shape memory effect of the existing NiCoMnIn series magnetic memory alloys, a new method for synthesizing NiCoMnIn magnetic memory alloys at high temperature through combustion reaction

Method used

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  • Method for synthesizing NiCoMnIn magnetic memory alloy through combustion reaction at high temperature
  • Method for synthesizing NiCoMnIn magnetic memory alloy through combustion reaction at high temperature
  • Method for synthesizing NiCoMnIn magnetic memory alloy through combustion reaction at high temperature

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Embodiment 1

[0019] In this embodiment, four kinds of magnetic memory alloys are prepared. The preparation method is the same, and the difference is only in the atomic percentage. These four kinds of magnetic memory alloys are respectively:

[0020] Ni 48 mn 34 In 16 co 2 : 48 parts of Ni powder, 34 parts of Mn powder, 16 parts of In powder and 2 parts of Co powder;

[0021] Ni 47 mn 34 In 16 co 3 : 47 parts of Ni powder, 34 parts of Mn powder, 16 parts of In powder and 3 parts of Co powder;

[0022] Ni 46 mn 34 In 16 co 4 : 46 parts of Ni powder, 34 parts of Mn powder, 16 parts of In powder and 4 parts of Co powder;

[0023] Ni 45 mn 34 In 16 co 5 : 45 parts of Ni powder, 34 parts of Mn powder, 16 parts of In powder and 5 parts of Co powder.

[0024] The preparation method of the high-strength and high-plasticity NiCoMnIn magnetic memory alloy of the present embodiment is prepared according to the following method: take Ni powder, Mn powder, In powder and Co powder with a...

Embodiment 2

[0026] In this embodiment, four kinds of magnetic memory alloys are prepared. The preparation method is the same, and the difference is only in the atomic percentage. These four kinds of magnetic memory alloys are respectively:

[0027] Ni 48 mn 34 In 16 co 2 : 48 parts of Ni powder, 34 parts of Mn powder, 16 parts of In powder and 2 parts of Co powder;

[0028] Ni 47 mn 34 In 16 co 3 : 47 parts of Ni powder, 34 parts of Mn powder, 16 parts of In powder and 3 parts of Co powder;

[0029] Ni 46 mn 34 In 16 co 4 : 46 parts of Ni powder, 34 parts of Mn powder, 16 parts of In powder and 4 parts of Co powder;

[0030] Ni 45 mn 34 In 16 co 5 : 45 parts of Ni powder, 34 parts of Mn powder, 16 parts of In powder and 5 parts of Co powder.

[0031]The preparation method of the high-strength and high-plasticity NiCoMnIn magnetic memory alloy of the present embodiment is prepared according to the following method: take Ni powder, Mn powder, In powder and Co powder with a ...

Embodiment 3

[0033] In this embodiment, four kinds of magnetic memory alloys are prepared. The preparation method is the same, and the difference is only in the atomic percentage. These four kinds of magnetic memory alloys are respectively:

[0034] Ni 48 mn 34 In 16 co 2 : 48 parts of Ni powder, 34 parts of Mn powder, 16 parts of In powder and 2 parts of Co powder;

[0035] Ni 47 mn 34 In 16 co 3 : 47 parts of Ni powder, 34 parts of Mn powder, 16 parts of In powder and 3 parts of Co powder;

[0036] Ni 46 mn 34 In 16 co 4 : 46 parts of Ni powder, 34 parts of Mn powder, 16 parts of In powder and 4 parts of Co powder;

[0037] Ni 45 mn 34 In 16 co 5 : 45 parts of Ni powder, 34 parts of Mn powder, 16 parts of In powder and 5 parts of Co powder.

[0038] The preparation method of the high-strength and high-plasticity NiCoMnIn magnetic memory alloy of the present embodiment is prepared according to the following method: take Ni powder, Mn powder, In powder and Co powder with a...

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Abstract

The invention relates to a method for synthesizing a NiCoMnIn magnetic memory alloy through a combustion reaction at high temperature. The method for preparing the NiCoMnIn magnetic memory alloy comprises the following steps that 45-48 parts of Ni powder, 34 parts of Mn powder, 16 parts of In powder and 2-5 parts of Co powder are taken according to the atomic percent, the metal powder is stirred and mixed to be uniform through a stirrer, and then the metal powder is poured into a pressure forming mold; and the powder is compacted into cylindrical samples through a jack and placed in a chamberelectric furnace to be sintered, the product is cooled to room temperature along with the furnace and taken out, and the NiCoMnIn magnetic memory alloy is obtained. The prepared NiCoMnIn magnetic memory alloy has the beneficial effects of being good in toughness, high in strength, fine in structure and the like.

Description

technical field [0001] The invention relates to a method for synthesizing NiCoMnIn magnetic memory alloy by combustion reaction at high temperature. Background technique [0002] Smart materials are an important field of material research. At present, there are more researches on piezoelectric materials, magnetostrictive materials and shape memory alloys. Piezoelectric ceramics represented by PZT and magnetostrictive materials represented by Terfenol-D can Under the action of an applied electric field / magnetic field, it exhibits reversible strain, with a response frequency of 10KHz, but the maximum output strain is small (only about 0.2%), and the output stress is low (only a few MPa), while the traditional shape memory alloy represented by TiNi alloy Through thermomechanical training, it can have two-way shape memory effect, large output strain (4%), and high output force (tens of MPa), but its response frequency is low (several Hz) limited by the temperature field, which i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/04C22C30/00C22C19/03
CPCB22F2998/10C22C1/0433C22C19/005C22C19/03C22C30/00C22C2202/02B22F1/0003B22F3/02B22F3/10
Inventor 董桂馥王通王珍
Owner DALIAN UNIV
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