Active amorphous brazing filler metal for brazing ZrB2-SiC ceramic materials, preparation method for active amorphous brazing filler metal and brazing process

A technology of zrb2-sic and solder, which is applied in the direction of manufacturing tools, welding equipment, welding/cutting media/materials, etc., can solve the problems of high brittleness of solder and poor performance at room temperature, and achieve excellent flexibility and improve wetting ability , Intensify the effect of elemental diffusion

Inactive Publication Date: 2016-01-20
ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above-mentioned problems existing in the prior art, the present invention provides a kind of brazing ZrB 2 -Active amorphous solder of SiC ceramics and its preparation method and brazing process solve the problem of connecting ZrB with common Cu-based, Ni-based and Ag-based solders at present 2 - The problem of poor room temperature performance of SiC ultra-high temperature ceramic materials and high brittleness of the solder itself

Method used

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  • Active amorphous brazing filler metal for brazing ZrB2-SiC ceramic materials, preparation method for active amorphous brazing filler metal and brazing process

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Embodiment 1

[0045] A kind of brazing ZrB 2 -Active amorphous solder for SiC ceramics, its composition and content by atomic percentage are: Cu: 39.0%; Ti: 35.0%; Zr: 19.0%; the rest is Ni.

[0046] The preparation method is carried out according to the following steps and process:

[0047] (1) After pulverizing the electrolytic copper block (Cu), sponge titanium (Ti), zirconium iodide (Zr) and nickel sheet (Ni), weigh the raw materials on the electronic balance according to the above formula, the purity of Cu, Ti and Ni Above 99.9%, the purity of Zr reaches above 99.99%;

[0048] (2) Place the ingredients according to the above formula in the vacuum magnetron tungsten electric arc furnace in the combined equipment of DHL-500II electric arc furnace stripping machine. There are five stations (semi-spherical sockets) in the electric arc furnace, and three Alloy station (with magnetic stirring), one suction casting station, one smelting and degassing station, in which the sponge titanium sa...

Embodiment 2

[0068] A kind of brazing ZrB 2 -Active amorphous solder for SiC ceramics, its components and contents are as follows: Cu: 36.0%; Ti: 30.0%; Zr: 23.0%; the rest is Ni.

[0069] Brazing process is identical with brazing process described in embodiment 1, adopts the ZrB of this amorphous solder vacuum brazing 2 -SiC ultra-high temperature ceramic material, its room temperature shear strength can reach up to 143MPa.

Embodiment 3

[0071] A kind of brazing ZrB 2 -Active amorphous solder for SiC ceramics, its components and contents are as follows: Cu: 42.0%; Ti: 35.0%; Zr: 16.0%; the rest is Ni.

[0072] Brazing process is identical with brazing process described in embodiment 1, adopts the ZrB of this amorphous solder vacuum brazing 2 -SiC ultra-high temperature ceramic material, its room temperature shear strength can reach up to 124MPa.

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Abstract

The invention discloses active amorphous brazing filler metal for brazing ZrB2-SiC ceramic materials, a preparation method for the active amorphous brazing filler metal and a brazing process, particularly relates to Cu-Ti-Ni-Zr high-temperature active amorphous brazing filler metal for brazing ZrB2-SiC ultra-high-temperature ceramic materials, a preparation method for the Cu-Ti-Ni-Zr high-temperature active amorphous brazing filler metal and a brazing process, and belongs to brazing filler metal in the amorphous and metallurgy fields. The components of the brazing filler metal comprise, by atomic percentage, 36.0-42.0% of Cu, 30.0-35.0% of Ti, 16.0-23.0% of Zr and the balance Ni. The melting temperature of the active amorphous brazing filler metal is 1110-1150 K, and the brazing temperature is 1183-1273 K. The Cu-Ti-Ni-Zr high-temperature active amorphous brazing filler metal obtained through the rapid condensation technology has good wettability. The room temperature shearing strength of the ZrB2-SiC ultra-high-temperature ceramic materials brazed through the amorphous brazing filler metal in a vacuum brazing mode can be as high as 160 MPa and much higher than that of Cu-based and Ag-based brazing filler metal.

Description

technical field [0001] The invention relates to a brazing ZrB 2 -Active amorphous solder of SiC ceramics and its preparation method and brazing process, specifically relating to a brazing ZrB 2 - Cu-Ti-Ni-Zr high-temperature active amorphous brazing material of SiC ultra-high-temperature ceramic material and its preparation method and brazing process, which belong to the brazing material in the field of amorphous state and metallurgy. Background technique [0002] In recent years, with the rapid development and leap-forward progress of aerospace technology, hypersonic vehicles, aerospace aircraft, and reusable trans-atmospheric vehicles have become research hotspots in various countries. The service characteristics of Mach number flight put forward higher and higher requirements for the comprehensive performance of the materials of the key thermal parts of the aircraft. Among many high-temperature materials, ultra-high-temperature ceramic materials are one of the materials...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30B23K35/40C04B37/00
CPCB23K35/302B23K35/40C04B37/006C04B2237/124C04B2237/126C04B2237/127
Inventor 王刚肖平黄仲佳徐超群丁鹏飞
Owner ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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