Marcel Porta
YOU?
Author Swipe
View article: Elastocaloric, barocaloric and magnetocaloric effects in spin crossover polymer composite films
Elastocaloric, barocaloric and magnetocaloric effects in spin crossover polymer composite films Open
View article: Precursor nanoscale strain textures: from cross-hatched to mottled structure
Precursor nanoscale strain textures: from cross-hatched to mottled structure Open
We present a theoretical of study the influence of the elastic anisotropy on structural patterns observed in cubic materials.
View article: A Heterogeneous Stress-Induced R-Phase Transformation in Ti50Ni48.5Fe1.5 with Enhanced Elastocaloric Effect
A Heterogeneous Stress-Induced R-Phase Transformation in Ti50Ni48.5Fe1.5 with Enhanced Elastocaloric Effect Open
View article: Caloric Effects Induced by Uniform and Non-uniform Stress in Shape-Memory Materials
Caloric Effects Induced by Uniform and Non-uniform Stress in Shape-Memory Materials Open
A Ginzburg–Landau model is developed that is adequate to describe a square-to-rectangle martensitic transition with associated shape-memory and superelastic properties. Using this model we study caloric effects in the vicinity of the marte…
View article: Flexocaloric effect in superelastic materials
Flexocaloric effect in superelastic materials Open
We present a combined theoretical–experimental study of flexocaloric effects in superelastic materials exhibiting structural transitions. We study a Ginzburg–Landau model combined with a vibrational model for a beam near a ferroelastic tra…
View article: Flexocaloric effect near a ferroelastic transition
Flexocaloric effect near a ferroelastic transition Open
A Ginzburg-Landau model embedded into a vibrational model is used to study the flexocaloric effect in a beam near a ferroelastic transition. The caloric response upon bending is characterized by the isothermal entropy change and the adiaba…
View article: Influence of the number of orientational domains on avalanche criticality in ferroelastic transitions
Influence of the number of orientational domains on avalanche criticality in ferroelastic transitions Open
We study the relationship between avalanche criticality and the number of orientational domains in ferroelastic transitions. To this end, we use a general Ginzburg-Landau model appropriate for displacive transitions of the square lattice. …
View article: Intermittent dynamics in externally driven ferroelastics and strain glasses
Intermittent dynamics in externally driven ferroelastics and strain glasses Open
The interplay of elastic anisotropy and disorder dictates many of the properties of ferroic materials, specifically martensites. We use a phase-field model for ferroelastic athermal materials to study their response to an increasing extern…
View article: Multiferroic and Related Hysteretic Behavior in Ferromagnetic Shape Memory Alloys
Multiferroic and Related Hysteretic Behavior in Ferromagnetic Shape Memory Alloys Open
We combine a Ginzburg–Landau model for a ferroelastic transition with the theory of micromagnetism to study the magnetostructural behavior leading to multicaloric effects in ferromagnetic shape memory alloys. We analyze the ferroelastic tr…
View article: Asymptotic analysis of hierarchical martensitic microstructure
Asymptotic analysis of hierarchical martensitic microstructure Open
We consider a hierarchical nested microstructure, which also contains a point of singularity (disclination) at the origin, observed in lead orthovanadate. We show how to exactly compute the energy cost and associated displacement field wit…