CN-121992255-A - Preparation method of carbon fiber reinforced aluminum/glass bead composite metal material

Abstract

The invention relates to a preparation method of a carbon fiber reinforced aluminum/glass bead composite metal material. According to the method, nickel-plated carbon fibers are added into aluminum/glass bead powder suspension in a stirring state, and then the aluminum/glass bead powder suspension is subjected to hot pressing sintering through a graphite mold, so that nickel and aluminum on the surfaces of the nickel-plated carbon fibers tend to form continuous and uniform Al 3 Ni film-shaped interface layers at the interfaces, thereby preventing the formation of Al 4 C 3 brittle phases and realizing the transition of load from a matrix to the carbon fibers. According to the invention, the proportion of the nickel-plated carbon fiber, the aluminum powder and the glass bead can be properly adjusted according to different purposes, and the material obtained after hot-pressed sintering has uniform component distribution and excellent performance.

Inventors

• JI PUGUANG
• MENG XIANZHANG
• WANG QINGZHOU
• YU HUI
• LIU ZHIYI
• WANG HAITAO
• HE ZHIHUI
• ZHANG HAO
• QI LIYA

Assignees

• 河北工业大学

Dates

Publication Date

20260508

Application Date

20260211

Claims (5)

1. 1. The preparation method of the carbon fiber reinforced aluminum/glass bead composite metal material is characterized by comprising the following steps of: (1) Preparation of aluminum/glass bead powder suspension Mixing aluminum powder and glass bead powder to obtain a mixed material, adding absolute ethyl alcohol to stir, and stirring for 1-2 hours to obtain aluminum/glass bead powder suspension; Wherein the volume of the glass bead powder is 30-70% of the volume of the mixed material, and the volume of the absolute ethyl alcohol is 0.5-1 times of the volume of the mixed material; (2) Preparation of nickel-plated carbon fiber/aluminum/glass microsphere powder suspension Adding nickel-plated carbon fiber into the aluminum/glass bead powder suspension in a stirring state, and stirring for 10-15min to obtain nickel-plated carbon fiber/aluminum/glass bead powder suspension; wherein, the nickel plating carbon fiber accounts for 0.1% -1% of the total volume of the aluminum powder and the glass bead powder; (3) Drying nickel-plated carbon fiber/aluminum/glass bead powder suspension Carrying out suction filtration on absolute ethyl alcohol in nickel-plated carbon fiber/aluminum/glass bead powder suspension, and then drying for 2-4 hours at 100-120 ℃ to obtain dried nickel-plated carbon fiber/aluminum/glass bead powder; (4) Preparation of carbon fiber reinforced aluminum/glass bead composite metal material And (3) loading the dried nickel-plated carbon fiber/aluminum/glass bead powder obtained in the previous step into a graphite mold filled with graphite paper, and then obtaining the carbon fiber reinforced aluminum/glass bead composite metal material through a hot-pressing sintering process.
2. 2. The method for preparing a carbon fiber reinforced aluminum/glass bead composite metal material according to claim 1, wherein the particle size of the aluminum powder is 1-150 μm, and the particle size of the glass bead is 20-100 μm.
3. 3. The method for preparing the carbon fiber reinforced aluminum/glass bead composite metal material according to claim 1, wherein the diameter of the nickel-plated carbon fiber monofilament is 5-10 μm, and the thickness of the nickel layer is 180-220nm.
4. 4. The method for preparing the carbon fiber reinforced aluminum/glass bead composite metal material according to claim 1, wherein the stirring speed of the stirring in a Z-axis reciprocating manner is 200-300 rpm, and the up-and-down reciprocating movement speed is 3-7 mm/s.
5. 5. The method for preparing the carbon fiber reinforced aluminum/glass bead composite metal material according to claim 1, wherein in the step (4), the parameters of the hot press sintering process are that the temperature is 580-620 ℃, the hot press sintering pressure is 5-25MPa, the heat preservation time is 1-2h, the heating rate is 10-15 ℃ per minute, and the vacuum degree is below 5X 10 -2 Pa.

Description

Preparation method of carbon fiber reinforced aluminum/glass bead composite metal material Technical Field The invention relates to the field of metal composite materials, in particular to a preparation method of a carbon fiber reinforced aluminum/glass bead composite metal material. Background With the spanned development of aerospace equipment, ocean engineering, and defense technology, military protection systems are facing unprecedented performance challenges. Taking armor structures and transportation protective materials as examples, the core requirements have been upgraded from pure penetration resistance to multi-modal dynamic energy dissipation. Particularly, military equipment facing extreme service conditions such as mechanical vibration (20-2000 Hz), high g value impact (more than or equal to 100 g/ms), complex inertial load (transverse/longitudinal swing +/-30 DEG) and the like is exposed to a remarkable short plate due to the specific working conditions of high transportation frequency and long storage period, and statistical data show that about 37% of damage in the equipment transportation process is caused by a multidimensional vibration coupling effect, and the failure rate of electronic devices caused by extreme impact is up to 21%. This highlights the strategic value of developing new composite protective materials. Based on this, leading edge material science proposes a multi-gradient structural solution, aluminum-based composite foam. The innovation point is that the limitation of single-phase energy absorption of the traditional solid material is broken through, and a hollow microsphere prefabricated controllable pore structure (the porosity is adjustable by 30-65%) is introduced. Experiments prove that the material shows excellent strain rate strengthening effect in a quasi-static compression test, has a longer compression platform and has stronger energy absorption capacity. Patent CN 115305377B, a preparation method of an aluminum-based porous hollow glass bead porous composite material, discloses a preparation method of a porous composite material with 2024 aluminum alloy as a matrix and hollow glass beads as reinforcements, and the technology realizes the light weight of the material through the combination of the aluminum alloy matrix and the beads, but because the glass beads are brittle ceramic materials, local crushing and crushing are extremely easy to occur when the glass beads are subjected to compressive load, and further improvement of peak strength and energy absorption capacity of the glass beads is limited. Disclosure of Invention The invention aims to solve the problem that the porosity and density of a composite material are reduced and the density is increased when the strength of the composite material is improved by simply increasing the wall thickness or reducing the particle size of the composite material, and provides a preparation method of a nickel-plated carbon fiber reinforced aluminum/glass bead composite metal material. According to the method, nickel-plated carbon fibers are added into aluminum/glass bead powder suspension in a stirring state, and then the aluminum/glass bead powder suspension is subjected to hot pressing sintering through a graphite die, so that nickel and aluminum in the nickel-plated carbon fibers tend to form continuous and uniform Al 3 Ni film-shaped interface layers at the interface, the generation of an Al 4C3 brittle phase is prevented, and the transition of load from a matrix to the carbon fibers is realized. According to the invention, the proportion of the nickel-plated carbon fiber, the aluminum powder and the glass bead can be properly adjusted according to different purposes, and the material obtained after hot-pressed sintering has uniform component distribution and excellent performance. The technical scheme adopted by the invention is as follows: a preparation method of a carbon fiber reinforced aluminum/glass bead composite metal material comprises the following steps: (1) Preparation of aluminum/glass bead powder suspension Mixing aluminum powder and glass bead powder to obtain a mixed material, adding absolute ethyl alcohol to stir, and stirring for 1-2 hours to obtain aluminum/glass bead powder suspension; Wherein the volume of the glass bead powder is 30-70% of the volume of the mixed material, and the volume of the absolute ethyl alcohol is 0.5-1 times of the volume of the mixed material; the particle size range of the aluminum powder is 1-150 mu m, and the particle size range of the glass beads is 20-100 mu m; (2) Preparation of nickel-plated carbon fiber/aluminum/glass microsphere powder suspension Adding nickel-plated carbon fiber into the aluminum/glass bead powder suspension in a stirring state, and stirring for 10-15min to obtain nickel-plated carbon fiber/aluminum/glass bead powder suspension; wherein, the nickel plating carbon fiber accounts for 0.1% -1% of the total volume of the aluminum powder and the g