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Andreas Mortensen

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Publications associées (138)

Fifth International Conference on High Temperature Capillarity HTC-2007, Alicante, Spain Preface

Andreas Mortensen

2008

High-temperature wettability of aluminum nitride during liquid metal infiltration

Andreas Mortensen, Ludger Weber, Maryam Bahraini Hasani, Masahiro Kida

The high-temperature wettability of AlN particle preforms with pure molten Cu, Al and Ph is quantified by means of drainage curves measured during pressure infiltration. By integrating the drainage curves obtained in this study, the work of immersion for e ...

2008

Coordination measurements in compacted NaCl irregular powders using X-ray microtomography

Andreas Mortensen

X-ray microtomography and three-dimensional (3D) image analysis are used to quantify the structural evolution during cold isostatic compaction of two irregularly shaped NaCl powders having different mean particle sizes (75 and 400 mu m) and somewhat differ ...

2008

Age-Hardening Response of Replicated Microcellular Al-4.5%Cu

Andreas Mortensen, Yves Conde

We study the response to age hardening of Al-4.5%Cu replicated foams with 75 and 400 pm cell sizes and with varying relative densities. The 400 mu m cell size foams have a similar behavior to the bulk alloy, whereas the 75 pm cell size foams with relative ...

Destech Publications, Inc, 439 Duke Street, Lancaster, Pa 17602-4967 Usa2008

Direct measurement of drainage curves in infiltration of SiC particle preforms: influence of interfacial reactivity

Andreas Mortensen, Ludger Weber, Maryam Bahraini Hasani

We present dynamic measurement of drainage curves in two systems having relevance to metal matrix composite processing, namely SiC/Al and SiC/Al-12.2at%Si. Data show that liquid/solid chemical reactions that cause a lowering of the contact angle do indeed ...

Springer US2008

Thermal conductivity of Al-SiC composites with monomodal and bimodal particle size distribution

Andreas Mortensen, Ludger Weber

The thermal conductivity of aluminum matrix composites having a high volume fraction of SiC particles is investigated by comparing data for composites fabricated by infiltrating liquid aluminum into preforms made either from a single particle size, or by m ...

2008

Direct measurement of drainage curves in infiltration of SiC particle preforms

Andreas Mortensen, Ludger Weber, Maryam Bahraini Hasani

Drainage curves (plots of the non-wetting fluid saturation versus applied pressure) for infiltration of SiC particle preforms with Al and Al-12.2 at.% Si are measured at 1023 K (750 degrees C) with a pressure infiltration apparatus adapted for direct track ...

2008

Age-hardening Response of Replicated Microcellular Al-4.5%Cu

Andreas Mortensen, Yves Conde

2008

Fracture toughness of TiAl alloys: A comparison of two gamma-a2 structures

Andreas Mortensen, Nicolas Vincent Barbi, Frédéric Diologent

Toughness measurements of a Ti-45Al-2N4u-2Nb + 0.8%vol TiB2 alloy with a. near fully lamellar microstructure and a Ti-46Al-8Nb alloy with a convoluted microstructure are performed at 650 degrees C under vacuum according to ASTM Standard E1820. Respective v ...

MINERALS, METALS & MATERIALS SOC2008

Tensile flow stress of ceramic particle-reinforced metal in the presence of particle cracking

Randoald Müller, Andreas Mortensen, Ludger Weber, Andreas Rossoll

A simplified model is proposed to quantity the effect of damage in the form of particle cracking on the elastic and plastic behaviour of particle-reinforced metal matrix composites under uniaxial tensile loading: cracked particles are simply replaced, in a ...

2008

Infiltration of graphite preforms with Al-Si eutectic alloy and mercury

Andreas Mortensen, Ludger Weber, Maryam Bahraini Hasani

2007

On measuring wettability in infiltration processing

Andreas Mortensen, Véronique Michaud

Capillary pressures encountered in composite processing are often evaluated by measuring infiltration rates as a function of applied pressure. Such data are generally interpreted assuming slug-flow. Using the Brooks-Corey correlations we relax this assumpt ...

2007

Influence of the infiltration pressure on the structure and properties of replicated aluminium foams

Jean-François Despois, Andreas Mortensen

2007

Spherical pore replicated Microcellular Aluminium

Andreas Mortensen

A method is presented that extends the replication process for the manufacture of open-celled metallic foams to include foams with spherical cells. Such foams are produced to a wide range of relative densities, tested for mechanical behaviour and resistanc ...

Japan Institute of Metals, Sendai, Japan2007

On the steady-state creep of microcellular metals

Randoald Müller, Andreas Mortensen, Frédéric Diologent, Sébastien Philippe Soubielle

2007

Diffusion-limited reactive wetting: effect of interfacial reaction behind the advancing triple line

Andreas Mortensen

2007

Introductory article

Andreas Mortensen

Elsevier Science2007

Microcellular aluminium? Child's play!

Andreas Mortensen

An innovation (patent pending) in the NaCl-based replication process for the manufacture of microcellular aluminium is presented that overcomes the limitations with the conventional method regarding large pore sizes (because large salt particles are often ...

2007

Increasing the strength/toughness combination of high volume fraction particulate metal matrixComposites using an Al-Ag matrix alloy

Randoald Müller, Andreas Mortensen

2006

Corrélation entre la forme d'inclusions intergranulaires et l'énergie de joints de grains dans un alliage Cu-1Pb

Andreas Mortensen, Vincent Laporte, Frédéric Diologent

2006

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