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Dirk Lehmhus   Dr.  Senior Scientist or Principal Investigator 
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Dirk Lehmhus published an article in August 2017.
Research Keywords & Expertise See all
0 A
0 Epoxy
0 Heat Treatment
0 Mechanical Properties
0 Melting
0 Microspheres
Top co-authors See all
John Banhart

185 shared publications

Institute of Applied Materials, Helmholtz-Zentrum-Berlin, 14109 Berlin, Germany

Sybrand Van Der Zwaag

120 shared publications

Novel Aerospace Materials group, Faculty of Aerospace Engineering, Delft University of Technology; 2629HS Delft The Netherlands

Thomas Fiedler

95 shared publications

Centre for Mass and Thermal Transport in Engineering Materials, School of Engineering, The University of Newcastle, Callaghan, NSW, 2308, Australia

Irina Hussainova

88 shared publications

Department of Mechanical and Industrial Engineering, Tallinn University of Technology, Tallinn, Estonia

Marcus Bäumer

84 shared publications

University of Bremen, Institute of Applied and Physical Chemistry, Center for Environmental Research and Sustainable Technology, MAPEX Center for Materials and Processes, 28359 Bremen, Germany

30
Publications
52
Reads
0
Downloads
124
Citations
Publication Record
Distribution of Articles published per year 
(2002 - 2017)
Total number of journals
published in
 
20
 
Publications See all
Article 0 Reads 3 Citations From Stochastic Foam to Designed Structure: Balancing Cost and Performance of Cellular Metals Dirk Lehmhus, Matej Vesenjak, Sven Schampheleire, Thomas Fie... Published: 08 August 2017
Materials, doi: 10.3390/ma10080922
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Over the past two decades, a large number of metallic foams have been developed. In recent years research on this multi-functional material class has further intensified. However, despite their unique properties only a limited number of large-scale applications have emerged. One important reason for this sluggish uptake is their high cost. Many cellular metals require expensive raw materials, complex manufacturing procedures, or a combination thereof. Some attempts have been made to decrease costs by introducing novel foams based on cheaper components and new manufacturing procedures. However, this has often yielded materials with unreliable properties that inhibit utilization of their full potential. The resulting balance between cost and performance of cellular metals is probed in this editorial, which attempts to consider cost not in absolute figures, but in relation to performance. To approach such a distinction, an alternative classification of cellular metals is suggested which centers on structural aspects and the effort of realizing them. The range thus covered extends from fully stochastic foams to cellular structures designed-to-purpose.
Article 3 Reads 0 Citations Effect of Fly-Ash Cenospheres on Properties of Clay-Ceramic Syntactic Foams Kristine Rugele, Dirk Lehmhus, Irina Hussainova, Julite Pecu... Published: 19 July 2017
Materials, doi: 10.3390/ma10070828
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A low-density clay ceramic syntactic foam (CSF) composite material was successfully synthesized from illitic clay added by fly ash cenospheres (CS) using the semi-dry formation method. The content of CS varied in the range of 10, 30, 50 and 60 vol %. Furthermore, reference samples without cenospheres were produced for property comparison. The materials comprising different amount of the additives were fired at temperatures of 600, 950, 1000, 1050, 1100, 1150 and 1200 °C. Firing times were kept constant at 30 min. Processing characteristics of the materials were evaluated in terms of density achieved and shrinkage observed as functions of both the CS content and the sintering temperature. The compressive strength and water uptake were determined as application-oriented properties. Except for the reference and the low CS level samples, the materials show an increase in strength with the increase in firing temperature, and a decrease of mechanical reliability with a decrease in density, which is typical for porous materials. Exceptions are the samples with no or low (10 vol %) content of cenospheres. In this case, the maximum strength is obtained at an intermediate sintering temperature of 1100 °C. At a low density (1.10 and 1.25 g/cm3), the highest levels of strength are obtained after sintering at 1200 °C. For nominal porosity levels of 50 and 60 vol %, 41 and 26 MPa peak stresses, respectively, are recorded under compressive load.
Article 3 Reads 1 Citation Mechanical Behavior of Particulate Aluminium-Epoxy Hybrid Foams Based on Cold-Setting Polymers Jörg Weise, André Felipe Queiroz Barbosa, Olga Yezerska, Dir... Published: 08 May 2017
Advanced Engineering Materials, doi: 10.1002/adem.201700090
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Article 2 Reads 5 Citations Vibration-Assisted Sputter Coating of Cenospheres: A New Approach for Realizing Cu-Based Metal Matrix Syntactic Foams Andrei Shishkin, Maria Drozdova, Viktor Kozlov, Irina Hussai... Published: 07 January 2017
Metals, doi: 10.3390/met7010016
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Article 2 Reads 2 Citations Data Evaluation in Smart Sensor Networks Using Inverse Methods and Artificial Intelligence (AI): Towards Real-Time Capab... Stefan Bosse, Armin Lechleiter, Dirk Lehmhus Published: 01 October 2016
Advances in Science and Technology, doi: 10.4028/www.scientific.net/ast.101.55
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Article 2 Reads 7 Citations Customized Smartness: A Survey on Links between Additive Manufacturing and Sensor Integration Dirk Lehmhus, Claus Aumund-Kopp, Frank Petzoldt, Dirk Godlin... Published: 01 January 2016
Procedia Technology, doi: 10.1016/j.protcy.2016.08.038
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