Ni-al alloy honeycomb material and preparation method thereof

A technology of honeycomb material and alloy, applied in the field of Ni-Al alloy honeycomb material and its preparation

Active Publication Date: 2015-08-19
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are a lot of research on porous Ni-Al intermetallic compounds and their preparation methods at home and abroad 589;H.Omar,D.P.Papadopoulos,S.A.Tsipas,H.Lefakis,Aluminizing nickel foam by a slurry coating process,Materials Letters,63(2009)1387-1389;Wu Liang,He Yuehui,Dong Hongxing.Ni-Al intermetallic compound porous Preparation of materials, Powder Metallurgy Materials Science and Engineering, 14(2009) 52-56], however, there have been no reports on Ni-Al intermetallic compounds with honeycomb structure and their preparation methods

Method used

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  • Ni-al alloy honeycomb material and preparation method thereof
  • Ni-al alloy honeycomb material and preparation method thereof
  • Ni-al alloy honeycomb material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Attached image 3The preparation process shown can obtain glass or water glass bonded Ni-Al alloy honeycomb material from nickel-aluminum composite wire. First put the nickel-aluminum composite wire with an outer diameter of 10nm-10mm and a nickel layer thickness / aluminum wire outer diameter ratio of 0.05-1 into a bottomed metal sleeve (high melting point metal, material is not limited), and glass slurry or water glass The primary blank is formed by injecting into the gap of the nickel-aluminum composite wire, and the volume fraction of the binder is 1%-98%. It is dried by slowly increasing the temperature from room temperature (3 Al, β-NiAl and δ-Ni 2 al 3 One or more of them depends on the nickel layer thickness / aluminum wire outer diameter of the nickel-aluminum composite wire, and (b) the temperature and time of high-temperature diffusion treatment.

Embodiment 2

[0037] Attached Figure 4 The preparation process shown can obtain the Ni-Al alloy honeycomb material from the nickel-aluminum composite wire through drawing and high-temperature diffusion. First put the nickel-aluminum composite wire with an outer diameter of 10nm-10mm and a nickel layer thickness / aluminum wire outer diameter ratio of 0.05-1 into a metal sleeve (high melting point metal, material is not limited) and discharge it compactly, and pass it through such as Figure 4 The mold shown is drawn, so that the nickel-aluminum composite wires are in close contact to complete (a) the billet preparation process. Then put the blank into a high-temperature furnace for (b) high-temperature diffusion at a temperature of 600-1200°C, a pressure of 0.1-200MPa, and a time of 1 minute-50 hours, under vacuum, protective atmosphere or air conditions. In (b) the high-temperature diffusion treatment stage, the nickel-aluminum composite wire in the blank reacts to form a Ni-Al alloy and f...

Embodiment 3

[0039] Attached Figure 5 The preparation process shown can obtain Ni-Al alloy honeycomb materials bonded by glass or water glass from nickel-aluminum composite pipes. The implementation is exactly the same as that of Example 1, except that the nickel-aluminum composite wire in Example 1 needs to be replaced by a nickel-aluminum composite pipe with an outer diameter of 10nm-10mm and a nickel layer thickness / aluminum tube thickness ratio of 0.05-1. Likewise, its honeycomb holes are formed inside the nickel-aluminum composite wire. The alloy phases of Ni-Al alloy honeycomb materials include γ-Ni, γ’-Ni 3 Al, β-NiAl and δ-Ni 2 al 3 One or more of them depends on the nickel layer thickness / aluminum wire outer diameter of the nickel-aluminum composite wire, and (b) the temperature and time of high-temperature diffusion treatment.

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Abstract

The invention a Ni-Al alloy honeycomb material. The Ni-Al alloy honeycomb material is characterized in that a core is a pure aluminium material or an aluminum alloy material, and is a linear or tube-shaped material specifically, and an outer layer of the Ni-Al alloy honeycomb material is a coating layer made from a pure nickel or nickel base alloy material; and the radial dimension range of a cross-sectional shape is 0.001 mm-10 mm, and the proportion of the diameter of the core linear material or the wall thickness of the core tube-shaped material to the thickness of the coating layer is 0.05 to 1. The invention also relates to a preparation method of the Ni-Al alloy honeycomb material. A hollow structure is formed by utilizing a Kirkendall effect that elements Ni and Al in a nickel-aluminum composite wire or tube are diffused, so that the Ni-Al alloy honeycomb material is obtained, the preparation method solves the problem that the high temperature mechanical properties and high temperature resistance corrosion properties of the conventional metal honeycomb material are universally low, and the preparation method is suitable for large-scale manufacture.

Description

technical field [0001] The invention relates to a metal honeycomb material and its preparation technology, and in particular provides a Ni-Al alloy honeycomb material and a preparation method thereof. Background technique [0002] Metal honeycomb is a new type of metal material with metal skeleton and honeycomb holes alternated. It is named for its honeycomb-shaped through-holes inside. This material has the characteristics of light weight, sound insulation, heat insulation, energy absorption and shock absorption, etc. It is a typical structural and functional integration material. [H.N.G.Wadley, Multifunctional periodic cellular metals, Philosophical Transactions of the Royal Society A, 364(2006) 31-68]. The application fields of metal honeycomb materials involve aerospace, electronics, environmental protection, energy, construction, etc. At the same time, it is also an excellent catalyst support material [Zhang Jianguo, Jia Jingsheng, Zhang Chunxi, Wang Shudong, Pt / Al 2...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B3/12B32B1/08B32B15/01
Inventor 沈明礼朱圣龙王福会吴维
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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