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Nano-porous material prepared through selective corrosion of Zr-Ti-Cu alloy and preparation method thereof

A zr-ti-cu, nano-porous technology, applied in the field of nano-materials, can solve problems such as the difficulty in preparing nano-porous materials with uniform pore size, and achieve the effect of good mechanical integrity and good toughness

Active Publication Date: 2019-11-12
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the limitations of the alloying system applicable to the dealloying method and the difficulty in preparing nano-porous materials with uniform and suitable pore diameters, and provide a method for preparing nano-porous materials by selectively corroding Zr-Ti-Cu alloys. its preparation method

Method used

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  • Nano-porous material prepared through selective corrosion of Zr-Ti-Cu alloy and preparation method thereof
  • Nano-porous material prepared through selective corrosion of Zr-Ti-Cu alloy and preparation method thereof
  • Nano-porous material prepared through selective corrosion of Zr-Ti-Cu alloy and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Select Cu 5 Zr 25 Ti 25 As the target alloy, the atomic ratio (at.%) of Ti, Zr, and Cu is 25:25:50, and it is converted into mass percentage to accurately and accurately weigh pure Ti (99.99%), pure Zr (99.99%) %) and pure Cu (99.99%), put the configured metal into WKI series non-consumable vacuum melting under the protection of high-purity argon (purity: 99.999%) to obtain a master alloy ingot with uniform composition.

[0031] After putting the crushed master alloy into ultrasonic cleaning, take 3g of master alloy and place it in a quartz tube with a bottom opening of 1 mm, and pump the vacuum shaker to a high vacuum (3.0×10 -3 Pa) after being filled with high-purity argon protection, when the induction current is added to 18A, the master alloy is completely melted, and the molten alloy is sprayed onto a high-speed rotating (3500r / min) copper roller under a pressure difference of 0.02MPa. An amorphous ribbon with a thickness of 20 μm and a width of 1.2 μm was obtai...

Embodiment 2

[0034] Select Cu 50 Zr 25 Ti 25 As the target alloy, the atomic ratio (at.%) of Ti, Zr, and Cu is 25:25:50, and it is converted into mass percentage to accurately and accurately weigh pure Ti (99.99%), pure Zr (99.99%) %) and pure Cu (99.99%), put the configured metal into WKI series non-consumable vacuum melting under the protection of high-purity argon (purity: 99.999%) to obtain a master alloy ingot with uniform composition.

[0035] After putting the crushed master alloy into ultrasonic cleaning, take 3g of master alloy and place it in a quartz tube with a bottom opening of 1 mm, and pump the vacuum shaker to a high vacuum (3.0×10 -3 Pa) after being filled with high-purity argon protection, when the induction current is added to 18A, the master alloy is completely melted, and the molten alloy is sprayed onto a high-speed rotating (3500r / min) copper roller under a pressure difference of 0.02MPa. An amorphous ribbon with a thickness of 20 μm and a width of 1.2 μm was obta...

Embodiment 3

[0038] Select Cu 50 Zr 25 Ti 25As the target alloy, the atomic ratio (at.%) of Ti, Zr, and Cu is 25:25:50, and it is converted into mass percentage to accurately and accurately weigh pure Ti (99.99%), pure Zr (99.99%) %) and pure Cu (99.99%), put the configured metal into WKI series non-consumable vacuum melting under the protection of high-purity argon (purity: 99.999%) to obtain a master alloy ingot with uniform composition.

[0039] After putting the crushed master alloy into ultrasonic cleaning, take 3g of master alloy and place it in a quartz tube with an opening of about 1 mm at the bottom end, and pump the vacuum shaker to a high vacuum (3.0×10 -3 Pa) back filled with high-purity argon protection, when the induction current is added to 18A, the master alloy is completely melted, and the molten alloy is sprayed onto the high-speed rotating (3500r / min) copper roller at a pressure difference of about 0.02MPa, A thin amorphous ribbon having a thickness of 20 μm and a wid...

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Abstract

The invention discloses a nano-porous material prepared through selective corrosion of a Zr-Ti-Cu alloy and a preparation method thereof. The material takes ZrxTiyCuz as a substrate, wherein x, y andz refer to atom percentage; x is more than 0 and less than 50; y is more than 0 and less than 50; z=50; and x+y=50. A nano-porous copper layer of the porous material is 1 to 3[mu]m in thickness, 20 to40nm in ligament width, and 11 to 30nm in aperture size. In the preparation method, a chemical dealloying method is adopted after smelting; Ti and Zr atoms are removed through selective corrosion with HF acid; and copper atoms are diffused, recombined and agglomerated to form a three-dimensional dual-continuous nano-porous material with a uniform netlike structure. Compared with the prior art, the preparation method only uses a HF solution without any other acid, so that the operation steps are simplified.

Description

technical field [0001] The invention mainly belongs to the field of nanometer materials, in particular to a method for selectively corroding Zr-Ti-Cu amorphous alloys to prepare nanoporous materials. Background technique [0002] Nanoporous materials are a hotspot in the field of new materials. Due to their high specific surface area, low density, high permeability, high electrical and thermal conductivity, and flexible and adjustable structure, they have great potential in the fields of energy, catalysis, separation, and sensing. Because of its important application potential, it has attracted extensive attention from researchers all over the world. [0003] There are many methods for preparing nanoporous materials, such as template method, Layer-by-layer self-assembly technology, powder metallurgy technology and dealloying. Among them, since dealloying has the characteristics of simple process, convenient operation and mass production, the preparation of nanoporous materi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/00C22C3/00C22C1/08C23F1/44
CPCC22C45/001C22C1/08C22C3/00C23F1/44C22C1/11
Inventor 夏超群宋光明李强杨泰宋来昂王鹏杨志道朱德民
Owner HEBEI UNIV OF TECH
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