CN112062589A - Method for realizing diffusion bonding of alumina ceramic based on alumina-titanium-nickel - Google Patents
Method for realizing diffusion bonding of alumina ceramic based on alumina-titanium-nickel Download PDFInfo
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- CN112062589A CN112062589A CN202010775193.3A CN202010775193A CN112062589A CN 112062589 A CN112062589 A CN 112062589A CN 202010775193 A CN202010775193 A CN 202010775193A CN 112062589 A CN112062589 A CN 112062589A
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- C04B37/00—Joining burned ceramic articles with other burned ceramic articles or other articles by heating
- C04B37/003—Joining burned ceramic articles with other burned ceramic articles or other articles by heating by means of an interlayer consisting of a combination of materials selected from glass, or ceramic material with metals, metal oxides or metal salts
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- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
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- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/02—Aspects relating to interlayers, e.g. used to join ceramic articles with other articles by heating
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- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/02—Aspects relating to interlayers, e.g. used to join ceramic articles with other articles by heating
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Abstract
The invention discloses a method for realizing diffusion bonding of alumina ceramic based on alumina-titanium-nickel, which prepares pure Ti foil, pure Ni foil and Al with square structures2O3Tablets, then with concentrated HNO3Washing pure Ti foil, pure Ni foil and Al foil with HCl solution with concentration of 10%2O3Sheet is prepared by mixing pure Ti foil, pure Ni foil and Al2O3Made into sheet of Al2O3‑Ti‑Ni‑Ti‑Al2O3A diffusion couple of the structure; then, graphite sheets are used for applying pressure to the two sides of the diffusion couple for fixing; and the diffusion connection of the alumina ceramics is realized through annealing treatment. The invention can reliably combine two materials, fully utilizes respective excellent performance, and has stable quality at the joint and high connection strength.
Description
Technical Field
The invention belongs to the technical field of welding, and particularly relates to a method for realizing diffusion bonding of alumina ceramics based on alumina-titanium-nickel.
Background
In the production of new materials, problems of the material itself or the connection to other materials are often encountered. Especially some alloys like ceramics, intermetallics, amorphous materials and single crystal alloys have poor weldability and it is difficult to achieve a reliable connection using conventional fusion welding methods.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a method for realizing diffusion bonding of alumina ceramic based on alumina-titanium-nickel, which is used for researching the interface reaction of nickel, titanium and alumina by controlling the bonding temperature and the heat preservation time, optimizing the interface structure, further improving the mechanical property of the metal ceramic composite material and preparing Al with excellent performance2O3-Ti-Ni-Ti-Al2O3A sample of the structure.
The invention adopts the following technical scheme:
method for realizing diffusion bonding of alumina ceramic based on alumina-titanium-nickel, and concentrated HNO3Washing pure Ti foil, pure Ni foil and Al foil with HCl solution with concentration of 10%2O3Sheet is prepared by mixing pure Ti foil, pure Ni foil and Al2O3Made into sheet of Al2O3-Ti-Ni-Ti-Al2O3A diffusion couple of the structure; then, graphite sheets are used for applying pressure to the two sides of the diffusion couple for fixing; and the diffusion connection of the alumina ceramics is realized through annealing treatment.
Specifically, pure Ni foil: the thickness ratio of the pure Ti foil was 1.0: 1.0.
Specifically, the applied pressure is 1-5 kPa.
Specifically, the fixed graphite mold is placed into a high vacuum carbon tube furnace for annealing treatment.
Further, the temperature rise rate of annealing treatment is 5-10 ℃/min, the reaction temperature is 1350-1500 ℃, and the heat preservation time is 2-10 h.
Specifically, pure Ti foil, pure Ni foil and Al2O3The size of the sheet is 20mm multiplied by 20mm, the thickness of the pure Ti foil and the pure Ni foil is 0.05-1 mm, and Al2O3The thickness of the sheet is 1 to 5 mm.
Compared with the prior art, the invention has at least the following beneficial effects:
the invention relates to a method for realizing diffusion bonding of alumina ceramics based on alumina-titanium-nickel, which can realize the welding bonding of metal and ceramic materials under the condition of not reducing the performance of a matrix.
Further, Ni: the thickness ratio of Ti was 1.0: 1.0. The purpose is to form the NiTi intermetallic compound with excellent performance on one hand and to conveniently observe the product after reaction on the other hand.
Further, pressure is applied to ensure Ni, Ti and Al2O3The two parts are in close contact with each other, so that the effective contact area of the matrix is enlarged, and the plastic deformation of the joint surface is promoted.
Furthermore, oxygen in the furnace chamber is removed, the sample is prevented from being oxidized, and the performance of the weldment is improved.
Furthermore, the temperature is selected to be below the melting point of the base metal, solid diffusion is carried out, the diffusion rate is high, and the strength of a welding joint is good.
In conclusion, the invention can reliably combine two materials, fully utilize respective excellent performances, and has stable quality at the joint and high connection strength.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 shows Al in example 1 of the present invention2O3-Ti-Ni-Ti-Al2O3SEM image of the interface reaction layer;
FIG. 2 shows Al in example 1 of the present invention2O3-Ti-Ni-Ti-Al2O3EDS picture of interfacial reaction layer.
Detailed Description
The Ni element is beneficial to reducing the melting point of Ti, reducing the reaction temperature and difficulty and promoting the diffusion. Through a Ni-Ti binary phase diagram, liquid phases of Ni and Ti can appear at a lower temperature, so that the welding seam can be filled up, the compactness of the welding seam is improved, and the reaction is promoted.
The invention relates to a method for realizing diffusion bonding of alumina ceramics based on alumina-titanium-nickel, which comprises the following steps:
s1, using Al2O3The sheet and the Ni and Ti foils are tightly adhered together to form Al2O3-Ti-Ni-Ti-Al2O3A diffusion couple of the structure;
pure Ti foil, pure Ni foil and Al2O3The sheet has a square structure, the size of the sheet is 20mm multiplied by 20mm, the thickness of the pure Ti foil and the pure Ni foil is 0.05-1 mm, and Al is added2O3The thickness of the sheet is 1-5 mm, and the Ni content in the nickel-titanium is as follows: the thickness ratio of Ti was 1.0: 1.0.
S2, placing the diffusion couple in a graphite mold, and fastening the diffusion couple by using a fixed-torque wrench, wherein the applied pressure is 1-5 kPa;
s3, placing the graphite mold into a vacuum carbon tube furnace filled with argon for annealing reaction, wherein the heating rate is 5-10 ℃/min, the reaction temperature is 1350-1500 ℃, and the heat preservation time is 2-10 h, so that the diffusion connection of the alumina ceramic is realized.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Ni and Ti sheets with thickness of 0.05mm and 0.05mm are respectively placed on two pieces of Al with thickness of 1mm2O3Making Al in ceramic plates2O3-Ti-Ni-Ti-Al2O3The sample of (1); then, the graphite is placed in a graphite mold, fastened by a fixed torque wrench, applied with pressure of 5kPa, annealed in a vacuum carbon tube furnace filled with argon, the reaction temperature is 1350 ℃ and the heat preservation time is 6 h.
Referring to FIGS. 1 and 2, the diffusion is uniform and Al is present2O3And (3) diffusing the medium Al, simultaneously diffusing the Ni and the Ti, cutting the sample along the direction vertical to the interface, and performing SEM and EDS tests on the interface. The results show that nickel, titanium and alumina react chemically to produce Ni3Ti (Al/O) solid solution and TiO.
Example 2
Ni and Ti sheets with the thickness of 0.06mm and 0.06mm respectively are placed on two pieces of Al with the thickness of 2mm respectively2O3Making Al in ceramic plates2O3-Ti-Ni-Ti-Al2O3The sample of (1); then, the graphite is placed in a graphite mould and fastened by a fixed torque wrench, the pressure is applied to be 4kPa, the annealing reaction is carried out in a vacuum carbon tube furnace which is introduced with argon, the reaction temperature is 1400 ℃, and the heat preservation time is 10 hours.
The sample was cut perpendicular to the interface direction and SEM and EDS tests were performed on the interface. The results show that nickel, titanium and alumina react chemically to produce Ni3Ti (Al/O) solid solution and TiO.
Example 3
Ni and Ti sheets with thickness of 0.08mm and 0.08mm respectively are placed on two pieces of Al with thickness of 3mm respectively2O3Making Al in ceramic plates2O3-Ti-Ni-Ti-Al2O3The sample of (1); then, the graphite is placed in a graphite mold, fastened by a fixed torque wrench, applied with pressure of 3kPa, and annealed in a vacuum carbon tube furnace filled with argon, the reaction temperature is 1450 ℃, and the heat preservation time is 4 hours.
The sample was cut perpendicular to the interface direction and SEM and EDS tests were performed on the interface. The results show that nickel, titanium and alumina react chemically to produce Ni3Ti (Al/O) solid solution and TiO.
Example 4
Placing Ni and Ti sheets with thickness of 1mm and 1mm respectively on two Al sheets with thickness of 5mm respectively2O3Making Al in ceramic plates2O3-Ti-Ni-Ti-Al2O3The sample of (1); then, the graphite is placed in a graphite mould and is fastened by a fixed torque wrench, the pressure is applied to be 2kPa, the annealing reaction is carried out in a vacuum carbon tube furnace which is introduced with argon,the reaction temperature is 1500 ℃, and the heat preservation time is 2 h.
The sample was cut perpendicular to the interface direction and SEM and EDS tests were performed on the interface. The results show that nickel, titanium and alumina react chemically to produce Ni3Ti (Al/O) solid solution and TiO.
The above four examples show that Al is present in this temperature and time interval2O3Interdiffusion occurs between the ceramic and metal atoms to form a strong metallurgical bond.
In conclusion, the diffusion bonding method for realizing the alumina ceramic based on the alumina-titanium-nickel reliably combines the alumina with the nickel and titanium metals, not only exerts the hardness of the alumina ceramic, but also has the toughness of the nickel and titanium, and has stable quality at the joint and high bonding strength.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (6)
1. A method for realizing diffusion bonding of alumina ceramics based on alumina-titanium-nickel is characterized in that concentrated HNO is used3Washing pure Ti foil, pure Ni foil and Al foil with HCl solution with concentration of 10%2O3Sheet is prepared by mixing pure Ti foil, pure Ni foil and Al2O3Made into sheet of Al2O3-Ti-Ni-Ti-Al2O3A diffusion couple of the structure; then, graphite sheets are used for applying pressure to the two sides of the diffusion couple for fixing; and the diffusion connection of the alumina ceramics is realized through annealing treatment.
2. The method for achieving alumina ceramic diffusion bonding based on alumina-titanium-nickel as claimed in claim 1, wherein the pure Ni foil: the thickness ratio of the pure Ti foil was 1.0: 1.0.
3. The method for realizing the diffusion bonding of the alumina ceramic based on the alumina-titanium-nickel as claimed in claim 1, wherein the applied pressure is 1 to 5 kPa.
4. The method for realizing the diffusion bonding of the alumina ceramic based on the alumina-titanium-nickel as claimed in claim 1, wherein the graphite mold after the fixation is put into a high vacuum carbon tube furnace for annealing treatment.
5. The method for realizing the diffusion bonding of the alumina ceramic based on the alumina-titanium-nickel as claimed in claim 4, wherein the temperature rise rate of the annealing treatment is 5-10 ℃/min, the reaction temperature is 1350-1500 ℃, and the holding time is 2-10 h.
6. The method for diffusion bonding alumina-based ceramic on alumina-titanium-nickel as claimed in claim 1, wherein the pure Ti foil, the pure Ni foil and Al are used2O3The size of the sheet is 20mm multiplied by 20mm, the thickness of the pure Ti foil and the pure Ni foil is 0.05-1 mm, and Al2O3The thickness of the sheet is 1 to 5 mm.
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| CN202010775193.3A CN112062589A (en) | 2020-08-03 | 2020-08-03 | Method for realizing diffusion bonding of alumina ceramic based on alumina-titanium-nickel |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101333116A (en) * | 2008-07-30 | 2008-12-31 | 哈尔滨工业大学 | Method of Brazing ceramic and ceramic-based composite material with titan alloy |
| CN103044058A (en) * | 2013-01-24 | 2013-04-17 | 哈尔滨工业大学 | Diffusion connection method of carbide ceramic |
| CN107353008A (en) * | 2017-06-20 | 2017-11-17 | 西安交通大学 | A kind of preparation method of laminated metal ceramic composite part |
| CN110370754A (en) * | 2019-06-28 | 2019-10-25 | 厦门理工学院 | A kind of high damage tolerance ceramic-metal composites and preparation method thereof |
| EP3650425A1 (en) * | 2017-07-05 | 2020-05-13 | Universidad De Alicante | Foam materials with pores interconnected with guest phases, process for preparing these materials and uses thereof |
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2020
- 2020-08-03 CN CN202010775193.3A patent/CN112062589A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101333116A (en) * | 2008-07-30 | 2008-12-31 | 哈尔滨工业大学 | Method of Brazing ceramic and ceramic-based composite material with titan alloy |
| CN103044058A (en) * | 2013-01-24 | 2013-04-17 | 哈尔滨工业大学 | Diffusion connection method of carbide ceramic |
| CN107353008A (en) * | 2017-06-20 | 2017-11-17 | 西安交通大学 | A kind of preparation method of laminated metal ceramic composite part |
| EP3650425A1 (en) * | 2017-07-05 | 2020-05-13 | Universidad De Alicante | Foam materials with pores interconnected with guest phases, process for preparing these materials and uses thereof |
| CN110370754A (en) * | 2019-06-28 | 2019-10-25 | 厦门理工学院 | A kind of high damage tolerance ceramic-metal composites and preparation method thereof |
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Application publication date: 20201211 |