Research on Preparation and Properties of Carbon Fiber Reinforced Zinc-Based Aluminum Rich Alloy Composite

Abstract

Aiming at the problems of poor bonding between the carbon fiber and the metal matrix and the friction and wear performance of the composite material during the preparation of carbon fiber reinforced zinc-based aluminum rich alloy composites, the carbon fiber surface metallization process was studied. Taking ZA27 as the research object, a new type of zinc-based aluminum rich alloy composite material was prepared by using surface metallized chopped carbon fibers with different contents as reinforcement materials. The microscopic morphology, element distribution and phase composition of the surface metallized carbon fiber and composite materials were characterized, and the hardness and friction and wear properties of the composite materials were tested. The results show that: the surface metallization of carbon fiber effectively reduces the diffusion of carbon elements into the matrix material during the sintering process, and improves the interface bonding between the carbon fiber and the matrix material; Compared with ZA27 alloy, the hardness of 6vt% carbon fiber is increased by 29.6%, and the average friction coefficient and wear rate are reduced by about 18.4% and 96%, respectively, indicating that the carbon fiber reinforced zinc-based aluminum rich alloy composite material optimizes the friction and wear performance of traditional materials.

Prediction and Verification of Wear Resistance of In-situ Inorganic Compounds Reinforced Zinc Matrix Composites

“…In particular, the International Lead and Zinc Organization has developed corresponding standards through the long-term use of zinc and aluminium alloys. Over the years, many scholars have conducted a lot of studies on the influence of various alloying elements on the mechanical properties and technological properties of zinc alloys [5][6][7][8] and the role of adding reinforcing substances [9,10].With the development of material requirements, higher requirements have been put forward for the wear resistance of zinc-based alloys. In particular, how to further improve the wear resistance of zinc alloy while maintaining its excellent hardness has attracted the attention of material workers.…”

Cation Bimetallic MOF Anchored Carbon Fiber for Highly Efficient Microwave Absorption

“…Although the impedance matching problem has been solved and desirable MA performance was achieved, it can be noted that the mass percent of absorbers is still high compared with that of many carbon fillers used as reinforcing filler (eg, CNTs (0.1-6 wt.%), [38][39][40][41][42] graphene (0.5-5 wt.%), [43][44][45][46][47] carbon black (1-5.5 wt.%), [48,49] CF (0.5-5.5wt.%), etc. [50][51][52] ), which will inevitably lead to the deterioration of the mechanical properties of the final composite. [53][54][55][56] Herein, taking full advantage of the relatively low specific surface area and adjustable length-to-diameter ratio of CF, an excellent microwave absorber based on micron-scale 1D CF and excellent impedance matching layer of cation-doped bimetallic MOF derivatives was successfully developed.…”

The Role of Al4C3 Morphology in Tensile Properties of Carbon Fiber Reinforced 2024 Aluminum Alloy during Thermal Exposure

“…The other party believes that the formation of brittle Al 4 C 3 is detrimental to the mechanical properties of carbon materials/Al composites [30][31][32][33]. Metallizing the surface of carbon fiber can effectively reduce the diffusion of carbon elements to the matrix during sintering [34]. The results show that the addition of nickel coating is beneficial to prevent the debonding at the interface between the coating/fiber and the alloy and obtain a finer microstructure.…”