Production and structural characterization of tailored made open-cell alumina–vanadia foams

Stergioudi, F.; Karelis, G.; Paulidou, E.; Michailidis, Nikolaos

doi:10.1016/j.ceramint.2013.03.078

Cited by 8 publications

(3 citation statements)

References 24 publications

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“…The major goal of this paper is to synthesize a new type of composite for SLS 3D printing based on epoxy resin-coated Al 2 O 3 . As the most widely used ceramic matters, alumina ceramic has been used in thick film integrated circuit, molten filter, high-temperature catalyst carrier, refractories and heatinsulation application (Tilugan et al, 2014;Stergioudi et al, 2013;Faure et al, 2011;Shen et al, 2012;Lo et al, 2011;Delbrücke et al, 2013) because of its low thermal conductivity (Wang and Zhao, 2017), high mechanical strength and hightemperature resistance.…”

Section: Introductionmentioning

confidence: 99%

The synthesis of epoxy resin coated Al₂O₃composites for selective laser sintering 3D printing

Yang

Zhai

et al. 2018

RPJ

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Purpose To prepare a new type of composite for selective laser sintering 3D printing, the surface of Al2O3 nanoparticles was modified by the coupling agent (3-methacryloxypropyl)-trimethoxy silane (KH570) before coated with thermoplastic epoxy resin (TER). Design/methodology/approach Laser diffraction confirmed that the size distribution of prepared powder materials in this study ranged between 20 to 80 µm. Thermogravimetric analysis (TGA) showed that the loading of organic matter was below 5 per cent. Fourier transform infrared spectroscopy indicated that the silane coupling agent molecule bound strongly with the alumina. X-ray diffraction confirmed the prepared powder materials to be α-alumina. Through the angle of repose (AOR) test, the AOR = 18.435º was obtained, suggesting the high flowability of prepared powder materials. Scanning electron microscopy (SEM) observation demonstrated that the shape of the prepared powder materials was sphere-like grains. Findings Molding properties of prepared powder materials were studied on the basis of particle size distribution, particle size, sphericity, crystal structure and the reaction mode of the TER. This prepared powder materials can be well applied to the production of epoxy resin-coated Al2O3 composite parts with high precision and good mechanical performance. Originality/value This composite can be well applied to the production of epoxy resin-coated Al2O3 composite parts with high precision and good mechanical performance.

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Section: Introductionmentioning

confidence: 99%

The synthesis of epoxy resin coated Al₂O₃composites for selective laser sintering 3D printing

Yang

Zhai

et al. 2018

RPJ

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“…At present, carbamide [20], K 2 CO 3 [17], NaCl [21] are widely used as a pore-forming agent, even NaF [22],sugar [23], starch [24] and magnesium powders [25] have been tried to use as pore-forming agents in powder metallurgy techniques. However, the melting point of carbamide is low, thus it must be removed from the green compact through water leaching before sintering.…”

Section: Introductionmentioning

confidence: 99%

Fabrication, Structure and Property of Copper Foam

Guo

Sun

Zhou

et al. 2018

MSF

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Copper foams by using CaCl2 as space holder were successfully manufactured by sintering and dissolution process. The porosity ranges from 75% to 91%, and cell size from 0.3mm to 3.0m. The volume fraction of CaCl2 and sintering temperature are the main factors that affect porosity of copper foam. The yield plateau stress of copper foams with porosity between 75.88% and 90.19% is in range of 12.1~1.2MPa. The yield plateau stress decreases with the increase of porosity. The energy absorption per unit volume (W) copper foams with porosity between 75.88% and 90.19% is in range of 6.17~0.63MJ/m3. Under the condition of identical porosity, the absorption energy per unit volume (W) of copper foam is about 43% higher than aluminum foam. The maximum ideal energy absorption efficiency of copper foam is about 0.74, it indicates that the copper foam can be used as a good absorbing material.

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“…NaCl has been employed to make Ti 2 AlC foams, however pore shape became elliptical and oriented, rather than the cubic-like shape of NaCl particles, as a consequence of deformation of the particles during cold press loading [18]. Foams have also been produced employing crystalline carbohydrate as a space-holder and soaking in water under controlled conditions before sintering [26][27][28][29][30][31][32][33], however, MAX phase foams have not been previously produced using this method. These studies have reported that employing sugar as space holder the internal architecture of the foam is controlled as well as porosities and pore size.…”

Section: Introductionmentioning

confidence: 99%

MAX phase Ti2AlC foams using a leachable space-holder material

Velasco

Gordo

Tsipas

2015

Journal of Alloys and Compounds

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MAX phase foams from commercial Ti 2 AlC powder were prepared by a novel powder processing method using raw sugar as space-holder. Manufacturing MAX phase foams using this method involves mixing Ti 2 AlC powder with raw sugar, pressing the mixture to form a green body followed by space-holder removal and sintering. Green bodies were formed using cold uniaxial pressing and porosity was controlled varying the size and amount of the raw sugar space-holder. Three different space-holder particles sizes in the range of 250-1000 µm and four different volume amounts (20%, 40%, 60% and 80%) of space-holder were studied. The foams produced were characterized, and the size distribution and amount of resulting porosity was compared with the theoretically expected values. Optimal conditions using this novel processing technique for this material were established aiming towards controlling the final microstructures and properties, of porous Ti 2 AlC MAX phase.

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Production and structural characterization of tailored made open-cell alumina–vanadia foams

Cited by 8 publications

References 24 publications

The synthesis of epoxy resin coated Al₂O₃composites for selective laser sintering 3D printing

The synthesis of epoxy resin coated Al₂O₃composites for selective laser sintering 3D printing

Fabrication, Structure and Property of Copper Foam

MAX phase Ti2AlC foams using a leachable space-holder material

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Production and structural characterization of tailored made open-cell alumina–vanadia foams

Cited by 8 publications

References 24 publications

The synthesis of epoxy resin coated Al2O3composites for selective laser sintering 3D printing

The synthesis of epoxy resin coated Al2O3composites for selective laser sintering 3D printing

Fabrication, Structure and Property of Copper Foam

MAX phase Ti2AlC foams using a leachable space-holder material

Contact Info

Product

Resources

About

The synthesis of epoxy resin coated Al₂O₃composites for selective laser sintering 3D printing

The synthesis of epoxy resin coated Al₂O₃composites for selective laser sintering 3D printing