Publications associées à Evaluation of static measurement in piezoelectric cantilever sensors using a charge integration technique for chemical and biological detection

Measurement of effective piezoelectric coefficients of PZT thin films for energy harvesting application with interdigitated electrodes

Paul Muralt, Andrea Mazzalai, Nachiappan Chidambaram

Interdigitated electrode (IDE) systems with lead zirconate titanate (PZT) thin films play an increasingly important role for two reasons: first, such a configuration generates higher voltages than parallel plate capacitor-type electrode (PPE) structures, a ...

Institute of Electrical and Electronics Engineers2012

Critical mechanical and electrical transition behavior of BaTiO3: The observation of mechanical double loop behavior

Dragan Damjanovic

Strain response of polycrystalline barium titanate (BaTiO3) was investigated under high unipolar electric field (0 to 4 kV/mm) and compressive stress (0 to 400 MPa) in the temperature range from 25 to 160 degrees C. In the vicinity of the Curie point (T-C) ...

American Institute of Physics2012

An experimental-numerical study of moisture absorption in an epoxy

John Botsis, Marco Lai, Joël Cugnoni, Dragan Coric

It is well known that moisture absorption impairs the mechanical and physical properties of polymers. Conventionally, the material's hygric strains are described as the product of a constant coefficient of moisture expansion (CME) and moisture concentratio ...

2012

Long-term mechanical reliability of ceramic thick-film circuits and mechanical sensors under static load

Peter Ryser, Thomas Maeder, Caroline Jacq

In this work, we study the long-term mechanical strength under static load - i.e. static fatigue performance or resistance to subcritical crack growth - of ceramic thick-film circuits, namely how the static fatigue of the substrate is affected by the prese ...

Elsevier2012

Polyimide foam-like microstructures: technology and mechanical properties

Philippe Renaud, Martinus Gijs, Sébastien Jiguet, Pierre Joris, Jagoda Anna Dobrzynska

We report a process for the realization of polyimide films with custom-designed microporosity based on the heat-induced depolymerization of polyimide-embedded polypropylene carbonate microstructures. The foam-like microstructures are up to 40 µm thick and ...

Institute of Physics2011

Highly piezoelectric AlN thin films grown on amorphous, insulating substrate

Paul Muralt, Silviu Cosmin Sandu, Alvaro Artieda

AlN thin films were grown by reactive sputtering on amorphous SiO2 thin films. Film texture, x-ray rocking curve width, mechanical stress, and the clamped piezoelectric constant d33,f were studied as a function of rf bias power and substrate roughness. A h ...

2010

Thermo mechanical effects in Ultra-High Performance Fibre Reinforced Concretes (UHPFRC) at early age

Eugen Brühwiler, Emmanuel Denarié, Hamid Sadouki, Aicha Kamen

The extremely low permeability of Ultra-High Performance Fibre Reinforced Concretes (UHPFRC) associated to their outstanding mechanical properties make them especially suitable to locally "harden" reinforced concrete structures in critical zones subjected ...

2010

Effect of substrate roughness on c-oriented AlN thin films

Paul Muralt, Alvaro Artieda, Michela Antonella Barbieri

(001)-textured AlN thin films as needed for bulk acoustic wave devices exhibit large mechanical stress variations as a function of growth substrate properties. We studied the relationship between stress and the surface morphology of a thermally oxidized si ...

2009

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Evaluation of static measurement in piezoelectric cantilever sensors using a charge integration technique for chemical and biological detection

Measurement of effective piezoelectric coefficients of PZT thin films for energy harvesting application with interdigitated electrodes

Critical mechanical and electrical transition behavior of BaTiO3: The observation of mechanical double loop behavior

An experimental-numerical study of moisture absorption in an epoxy

Long-term mechanical reliability of ceramic thick-film circuits and mechanical sensors under static load

Polyimide foam-like microstructures: technology and mechanical properties

AIN Thin Film Structures for High-Q Resonators

Highly piezoelectric AlN thin films grown on amorphous, insulating substrate

Extended cracked membrane model for the analysis of RC panels

Thermo mechanical effects in Ultra-High Performance Fibre Reinforced Concretes (UHPFRC) at early age

Effect of substrate roughness on c-oriented AlN thin films

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Chattez avec Graph Search

Measurement of effective piezoelectric coefficients of PZT thin films for energy harvesting application with interdigitated electrodes

Long-term mechanical reliability of ceramic thick-film circuits and mechanical sensors under static load

Highly piezoelectric AlN thin films grown on amorphous, insulating substrate

AIN Thin Film Structures for High-Q Resonators

Extended cracked membrane model for the analysis of RC panels

An experimental-numerical study of moisture absorption in an epoxy

Critical mechanical and electrical transition behavior of BaTiO3: The observation of mechanical double loop behavior

Polyimide foam-like microstructures: technology and mechanical properties

Thermo mechanical effects in Ultra-High Performance Fibre Reinforced Concretes (UHPFRC) at early age

Effect of substrate roughness on c-oriented AlN thin films