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Method for realizing tensile elastic strain of film with surface relief of shape memory alloy

A tensile elastic strain, memory alloy technology, applied in metal material coating process, ion implantation plating, coating and other directions, can solve the problems of high cost, complex process, small deformation, etc., to achieve simple method and obvious effect Effect

Inactive Publication Date: 2014-05-14
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Usually, people use methods such as lattice mismatch or doping to realize elastic strain engineering of nano-film materials. However, most of these methods are complicated in process, high in cost, small in deformation and difficult to control.

Method used

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  • Method for realizing tensile elastic strain of film with surface relief of shape memory alloy
  • Method for realizing tensile elastic strain of film with surface relief of shape memory alloy
  • Method for realizing tensile elastic strain of film with surface relief of shape memory alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] This embodiment provides a FeNiCoTi shape memory alloy surface embossment to realize Cu 2 The method for tensile elastic strain of O nano film, it may further comprise the steps:

[0034] 1. The preparation of FeNiCoTi substrate mainly includes the following steps:

[0035] (1) Select elemental iron, elemental nickel, elemental cobalt and elemental titanium with a purity of 99.9wt.% according to the weight ratio of Fe:Ni:Co:Ti=55:31:10:4;

[0036] (2) Put elemental iron, elemental nickel, elemental cobalt and elemental titanium in a vacuum higher than 10 -1 In the smelting furnace of Pa, melt into FeNiCoTi shape memory alloy material, obtain ingot;

[0037] (3) Perform homogenization annealing on the cast ingot at 1000°C for 60 hours under the protection of inert gas;

[0038] (4) Carry out cold rolling and 950 ℃ recrystallization annealing with the cast ingot after annealing, obtain the rod material that diameter is 12mm;

[0039] (5) After the bar is heat-treated ...

Embodiment 2

[0048] This embodiment provides a FeNiCoTi shape memory alloy surface embossment to realize TiO 2 The method for stretching elastic strain of nano film, it may further comprise the steps:

[0049] 1. The preparation of FeNiCoTi substrate mainly includes the following steps:

[0050] (1) Select elemental iron, elemental nickel, elemental cobalt and elemental titanium with a purity of 99.9wt.% according to the weight ratio of Fe:Ni:Co:Ti=55:31:10:4;

[0051] (2) Put elemental iron, elemental nickel, elemental cobalt and elemental titanium in a vacuum higher than 10 -1 In the smelting furnace of Pa, melt into FeNiCoTi shape memory alloy material, obtain ingot;

[0052] (3) When the vacuum degree is higher than 10 -1 Perform homogenization annealing on the cast ingot for 30 hours in a vacuum of Pa;

[0053] (4) Carry out cold rolling and 950 ℃ recrystallization annealing with the cast ingot after annealing, obtain the rod material that diameter is 12mm;

[0054] (5) After the...

Embodiment 3

[0062] The present embodiment provides a kind of FeNiCoTi shape memory alloy surface embossment realizes the method for stretching elastic strain of ZnO nano film, it comprises the following steps:

[0063] 1. The preparation of FeNiCoTi substrate mainly includes the following steps:

[0064] (1) Select elemental iron, elemental nickel, elemental cobalt and elemental titanium with a purity of 99.9wt.% according to the weight ratio of Fe:Ni:Co:Ti=55:31:10:4;

[0065] (2) Put elemental iron, elemental nickel, elemental cobalt and elemental titanium in a vacuum higher than 10 -1 In the smelting furnace of Pa, melt into FeNiCoTi shape memory alloy material, obtain ingot;

[0066] (3) Perform homogenization annealing on the cast ingot at 1050°C for 60 hours under the protection of inert gas;

[0067] (4) Carry out cold rolling and 950 ℃ recrystallization annealing with the cast ingot after annealing, obtain the rod material that diameter is 12mm;

[0068] (5) After the bar is he...

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Abstract

The invention relates to a method for realizing a tensile elastic strain of a film with surface relief of a shape memory alloy. The method comprises the following steps that sediment is conducted on the surface of a shape memory alloy substrate, a nano film is obtained, the shape memory alloy substrate with the nano film is subjected to low-temperature subzero treatment to allow the shape memory alloy substrate to generate martensite phase transformation, relief folds are formed on the surface of the substrate, and the nano film generates the tensile elastic strain. The method adopts the surface relief of the shape memory alloy to realize the great tensile elastic strain of the nano film for the first time, and further adjusts optical and catalytical performances and the like of the nano film, the tensile strain state can exist stably at a room temperature, and the method is simple, and obvious in effect.

Description

technical field [0001] The invention relates to a method for realizing stretching and elastic strain of a film by utilizing surface embossment of a shape memory alloy, and belongs to the technical field of application of shape memory synthetic materials. Background technique [0002] Nanofilm refers to a two-dimensional material with a thickness less than 100nm deposited on the surface of a substrate by atoms, molecules or ions. It has both the superior properties of general thin films and nanomaterials. [0003] Nano-films have broad application prospects in the fields of electricity, optics, magnetism, catalysis, etc. However, due to the limitations of the physical and chemical properties of the materials themselves, the performance of nano-films cannot meet people's requirements, so people try to use doping, Lattice mismatch and other methods are used to adjust the functional properties of materials. The basis of these methods is to use doping and lattice distortion to ch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/08C23C14/28C21D6/04C21D1/26
Inventor 张利强崔立山邵阳姜大强杨峰杜敏疏郭云鹏郭方敏
Owner CHINA UNIV OF PETROLEUM (BEIJING)