Quasicrystal–polymer composites for selective laser sintering technology

Kenzari, Samuel; Bonina, David; Dubois, Jean‐Marie; Fournée, V.

doi:10.1016/j.matdes.2011.10.032

Cited by 81 publications

(50 citation statements)

References 23 publications

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“…A patent was lled to secure this invention [12]. The invention has now passed the initial steps of intellectual property rights [13]. Marketing of products derived from this technology is now under way by a small and medium size enterprise † † located close to our laboratory.…”

Section: Properties and Resultsmentioning

confidence: 99%

Quasicrystal-Polymer Composites for Additive Manufacturing Technology

et al. 2014

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We present a new niche application of quasicrystalline powders that leads to a commercially successful development of polymer-matrix composites. The process is based upon selective laser sintering, which is one of the current most powerful additive manufacturing technologies in use in the mechanical industries. Characteristics of the materials produced, such as porosity, friction and wear against hard steel, are evaluated and compared to the state of the art. Insight into the production of metal-matrix composites, using a variant of the technology, is also given.

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Section: Properties and Resultsmentioning

confidence: 99%

Quasicrystal-Polymer Composites for Additive Manufacturing Technology

et al. 2014

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“…Since the 1980s, when additive manufacture was invented, the industry has been growing and expanding, with new machines, processes and methods being developed every month. Selective Laser Sintering (SLS) [9,10,11] is a process which involves starting with an initial powder bed and then generating complex parts by Selective melting the cross section of a part layer by layer. The input of thermal energy via a laser beam provides the means by which the power both melts and consolidates together.…”

Section: Additive Manufacture and Laser Sintering Processmentioning

confidence: 99%

What triggers a microcrack in printed engineering parts produced by selective laser sintering on the first place?

et al. 2015

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The proximity of un-melted particles within Selective Laser Sintered (SLS) printed engineering parts made of nylon-12 is found as a major triggering effect for cracking and ultimately failure. The numerical investigation, by means of the eXtended Finite Element Method (XFEM), was performed over samples with different arrangements of un-melted particles obtained experimentally . The onset and propagation of microcracks was simulated. This included inherently how the degree of particle melt (DPM) in SLS parts affects and controls both crack initiation and propagation. The results evidenced that a microcrack started invariably between the two closest un-melted particles in all numerical tests performed considering different arrangements of un-melted particles.

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“…The laser sintering process allows complex 3D objects to be built by selectively fusing together successive layers of powdered material. Theoretically, the wide range of material choices is a major advantage of SLS technology, because any powder that can be bonded after heating can be applied in SLS technology, but in practical applications, powder materials that can be successfully used are scarce [3][4][5][6][7][8]. The main reason for this scarcity is that SLS technology requires high-performance powder materials.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of novel PA6/SiO2 composite microsphere applied for selective laser sintering

Wang¹,

Liu²,

Zhang³

et al. 2018

Express Polym. Lett.

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Abstract. The high cost and less variety of raw materials has greatly restricted the wide application of selective laser sintering (SLS) technology. In order to make the material cheaper and more diverse, PA6 is the most preferable material. In this work, a new PA6/SiO 2 composite microsphere used for SLS was designed and fabricated. To construct the material, PA6 porous microspheres with diameters of 20-80 µm and a certain pore volume were firstly prepared by the dissolution precipitation method. Then, SiO 2 was generated in situ in the PA6 porous microsphere framework, thus achieving a special structured PA6/SiO 2 composite microsphere. These microspheres with much well dispersed SiO 2 in PA6 matrices formed a powder with high bulk density and good electron conductivity. The particle size and weight fraction of the two components can be well controlled by adjusting the experimental conditions. Differential scanning calorimetry (DSC) data showed that the composite powder had a larger sintering window, which would be beneficial for SLS processing. The introduction of SiO 2 reduced the rate of water absorption in the composite powder, which could improve the accuracy of SLS forming. This work has certain significance as a reference for the design and development of SLS polymer-based composite materials.

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Quasicrystal–polymer composites for selective laser sintering technology

Cited by 81 publications

References 23 publications

Quasicrystal-Polymer Composites for Additive Manufacturing Technology

Quasicrystal-Polymer Composites for Additive Manufacturing Technology

What triggers a microcrack in printed engineering parts produced by selective laser sintering on the first place?

Preparation and characterization of novel PA6/SiO2 composite microsphere applied for selective laser sintering

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