Scientific Program

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Virtual poster session

Manufacturing and comparison of AlSi12 matrix unimodal and bimodal syntactic metal foams

Wednesday (07.10.2020)
18:49 - 18:52 Room 1
Part of:
Line-Up:
18:40 Virtual poster session Development of CFRP - hybrid foam composites for improved light-weight design of electric vehicles 1 Joachim Baumeister
18:43 Virtual poster session Study of the thermal conductivity of powdered microcellular polymers based on PMMA 1 Ph.D. Ismael Sánchez
18:46 Virtual poster session Manufacturing of functional aluminium matrix syntactic foams 1 Alexandra Kemény
18:49 Virtual poster session Manufacturing and comparison of AlSi12 matrix unimodal and bimodal syntactic metal foams 1 Borbála Leveles
18:52 Virtual poster session The effect of elastomer viscosity in pp/poe foams produced by core-back injection moulding over impact properties 1 Ph.D. Santiago Muñoz Pascual
18:55 Virtual poster session Modelling of the mechanisms of heat transfer in glass foams at different temperatures 1 Paula Cimavilla-Román
18:58 Virtual poster session Thermal conductivity of polyisocyanurate foams (PIR) produced using hydrofluoroolefins (HFOs) as blowing agents 1 Ph.D. Patricia Torres
19:01 Virtual poster session Multiscale modeling of biopolymer aerogels 1 Dr.-Ing. Ameya Rege
19:04 Virtual poster session On the way to mass production of unit-cell based auxetic materials 1 Angela Schwarz
19:07 Virtual poster session Wavy knits – enabling the production of auxetic materials 1 Angela Schwarz
19:10 Virtual poster session Influence of Sample Size on Dynamic Compression of Metal Syntactic Foams 1 Nima Movahedi
19:13 Virtual poster session Synthesis of new non-isocyanate polyurethane foams based on cyclic triscarbonates and diamines 1 Ph.D. Mercedes Santiago-Calvo
19:16 Virtual poster session Formation of monodisperse surfactant foams 1 Prof. Dr. Rumen Krastev
19:19 Virtual poster session Analysis of a AlMg2.5 matrix syntactic foam produced via thixoinfiltration of loosely packed and micro structured recycled balloons 1 João Paulo Paschoal
19:22 Virtual poster session In-situ observation of combustion foaming process for synthesizing porous Al3Ti by X-ray radioscopy 1 Takamasa Inukai
19:25 Virtual poster session Characterization of 3D printed PHBV+BG scaffolds for bone regeneration 1 Prof. Dr. Elida B. Hermida
19:28 Virtual poster session Rheology of a hydrogel-ink, printing fidelity and elastic behavior of 3D-printed scaffolds 1 Prof. Dr. Elida B. Hermida
19:31 Virtual poster session Keratinocytes hacat proliferation on 3D-printed chitosan-collagen scaffolds 1 Prof. Dr. Elida B. Hermida
19:34 Virtual poster session The microhardness and microstructure studies on the sintered open-cell nickel foam 0 Faeze Barzegar
19:37 Virtual poster session Characterization of porous titanium implants produced by 3D printer technique 0 Dr. Akram Salehi
19:40 Virtual poster session Adapting polymer derived ceramic membranes for emulsification process 1 Natália Cristina Fontão
19:43 Virtual poster session Poster discussion in video chat rooms 0
Session Chair


Session V.1: Session 1
Belongs to:
General Topic V: Virtual poster session


Metallic foams (MFs) are increasingly used in the automotive industry due to their relatively low weight and high specific energy absorbing capacity. MFs are materials that contain a certain amount of porosity in the base metallic material. In special MFs, called syntactic foams, the second, porosity ensuring phase is usually formed with hollow spheres or closed-wall porous materials responsible for gas intake.

During our research, metal matrix syntactic foam (MMSF) samples were produced using two grades of ceramic hollow spheres (CHSs) of different diameters as filler material. The CHSs are made of high-purity alumina ceramic with nominal diameters of Ød1=7 mm and Ød2=2.4 mm. Three types of samples were compared: MMSFs with unmixed small, large and mixed CHSs in 1:1 ratio (uniformly distributed). AlSi12 alloy was infiltrated amongst the CHSs with low-pressure infiltration to form the desired cellular material. Manufacturing parameters have a significant influence on the quality of the samples. Different preheating and melt temperatures, infiltration pressures and time was applied to reach proper infiltration. The samples were evaluated and compared based on the standardized upsetting tests. The compressive strength, plateau stress and energy-absorbing capacity values were the main comparison factors of the specimens.

The importance of this research is to develop high-performance bimodal MMSFs which have higher specific mechanical properties than conventional MFs. This helps to achieve additional weight reduction, primarily as machine bumper parts or automotive components.

Speaker:
Borbála Leveles
Budapest University of Technology and Economics
Additional Authors:
  • Alexandra Kemény
    Budapest University of Technology and Economics
  • Prof. Dr. Imre Norbert Orbulov
    Budapest University of Technology and Economics