Investigation of Quasicrystal-Reinforced Aluminium Metal Matrix Composite by Hot Extrusion

Passos, Tibério Andrade dos; Gomes, Rodinei Medeiros; Melo, Tadeu Antonio de Azevedo; Lima, Severino Jackson Guedes de

doi:10.4028/www.scientific.net/msf.643.125

Cited by 6 publications

(6 citation statements)

References 8 publications

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“…Metallic quasicrystal powder: alloy was produced with ingots of Aluminum (99.97% purity), electrolytic copper (99.98% purity), and iron (99.98% purity). The Al 65 Cu 23 Fe 12 alloy (% atomic) was studied by Passos et al 25 due to the low cost of the elements. The elements were melted in an induction furnace with argon atmosphere.…”

Section: Preparation Of the Samplesmentioning

confidence: 99%

Quasicrystalline Metal Powder: A Potential Filler for UHMWPE Composites

et al. 2022

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The mechanical and thermal behavior of ultra-high molecular weight polyethylene (UHMWPE)/metallic quasicrystal powder (MQP) composites are evaluated at filler volume fractions (∅ f ) of 0.01, 0.02, 0.06 and 0.15. MQP is based on an aluminum alloy, synthesized and characterized to act as a filler for UHMWPE. The preparation of the composites was conducted by compression molding. Morphological analysis reveals larger and smaller MPQ particles, being well distributed, and mechanically anchored in the matrix. The melting temperature was maintained after adding filler, while the crystallinity values decreased. When adding MQP, an improvement in thermal stability is observed by increases in both the initial and maximum weight loss rate temperatures (Tmax). However, when the temperature is about 700°C all composites present oxidation due to the MQP presence. The Pukansky model shows that the 0.06 MQP composites have better interfacial adhesion. This is confirmed by the Nicolais-Narkis equation. This contributes to an increase in the modulus of elasticity of the 0.06 MQP composite in respect to the others. The elongation at break was reduced for the 0.15 MQP composite. However, the higher volume fraction of MQP increased the stiffness of the UHMWPE, reflecting its potential for use as a reinforcement.

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Section: Preparation Of the Samplesmentioning

confidence: 99%

Quasicrystalline Metal Powder: A Potential Filler for UHMWPE Composites

et al. 2022

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“…Four different powder fillers were used: a quasicrystal alloy, aluminum, copper, and iron. These fillers were sieved using a 200 mesh sieve (average particle size of 75 mm) and composite adhesives were prepared using eight different filler=epoxy volume fractions (5,10,15,20,25,30,35, and 40 vol.%). Net epoxy resin was used as control.…”

Section: Composite Adhesivesmentioning

confidence: 99%

“…The samples were then thermally treated at 1023 K for 24 h to obtain a microstructure made up of predominantly quasicrystalline phase and a small amount of crystalline b phase. Preparation of quasicrystalline powder has been described elsewhere [5].…”

Section: Composite Adhesivesmentioning

confidence: 99%

“…Since quasicrystalline materials are very brittle, they are often used in powder as reinforcements in composites or in coating technology [4]. Some researchers have addressed the incorporation of quasicrystalline powders as reinforcement to aluminum matrix composites [5], while others have developed polymer=quasicrystal composite materials the use of epoxy resins seems to be promising option in composites [6].…”

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confidence: 99%

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The Influence of Alloying Elements on Adhesive Properties of Epoxy-Quasicrystal Composites

Altidis

Lima

Torres

et al. 2013

The Journal of Adhesion

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Quasicrystals (QC) are materials that exhibit good surface properties such as high hardness, low surface energy, low friction coefficient, and good resistance to oxidation and corrosion. Despite these properties, QC alloys are highly brittle, discouraging their uses in applications requiring mechanical stresses. Hence, the development of composites using quasicrystalline materials as reinforcement to ductile matrices is an interesting alternative. In this work, Al-Cu-Fe quasicrystals were used as a reinforcement to epoxy resin in order improve adhesion with metallic substrates. Adhesive properties were evaluated by single lap joint (SLJ) tests and the QC=epoxy interface was analyzed by scanning electron microscopy (SEM). Aluminum, copper, and iron, individual elements, were used to investigate the contribution of each element to the adhesive. Results show that it was possible to significantly enhance adhesion properties when 25% QC was added to epoxy and that the effect of QC amount on SLJ bond strength did not follow a linear trend. Moreover, the contribution of each alloying element was important to explain the influence of QC addition on adhesive properties of the epoxy-based composites.

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“…The unique atomic arrangement enables quasicrystals exhibit a combination of attractive properties such as low thermal conductivity, low electrical conductivity, good wear resistance, high hardness, low friction coefficient, good oxidation and corrosion resistance[2,5,45]. These properties make quasicrystals good candidates for various applications, including reinforcements in the MMCs[5,175]. Gas atomized Al-Cr-Fe quasicrystal powders are already commercially available.…”

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Al-Cr-Fe quasicrystals and their applications as reinforcements in the Ti based metal matrix composites

Li¹

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Investigation of Quasicrystal-Reinforced Aluminium Metal Matrix Composite by Hot Extrusion

Cited by 6 publications

References 8 publications

Quasicrystalline Metal Powder: A Potential Filler for UHMWPE Composites

Quasicrystalline Metal Powder: A Potential Filler for UHMWPE Composites

The Influence of Alloying Elements on Adhesive Properties of Epoxy-Quasicrystal Composites

Al-Cr-Fe quasicrystals and their applications as reinforcements in the Ti based metal matrix composites

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