Acoustic emission and energy dissipation during front propagation in a stress-driven martensitic transition

Bonnot, Erell; Vives, Eduard; Mañosa, Lluı́s; Planes, Antoni; Romero, Ricardo

doi:10.1103/physrevb.78.094104

Cited by 40 publications

(25 citation statements)

References 18 publications

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“…[92][93][94][95][96]). It proved much harder, however, to observe the jerky elastic response in an elastic measurement such as using the dynamic elastic Analyser (DMA).…”

Section: Phase Transitions 663mentioning

confidence: 97%

On the dynamics of ferroelastic domain boundaries under thermal and elastic forcing

Salje

2010

Phase Transitions

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Experimental observations and some theoretical models for the propagation of ferroelastic domain boundaries and phase fronts are reviewed. While the static configurations of domains and domain walls are reasonably well understood in ferroelastics (and specifically in shape memory alloys), one finds that the dynamic features have been less thoroughly investigated. In most cases, a smooth movement of domain walls in the ballistic limit is observed, accelerated propagation seems not to exist in the time and space limits of most experiments. Pattern formation occurs when the local order parameter is conserved over a length scale which is different from the ferroelastic correlation length. Currently, only few spiky elastic measurements and domain wall jamming in ferroelastics have been reported. Emphasis is given to disordered systems in which the occurrence of 'jerky elasticity' can be expected.

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“…[92][93][94][95][96]). It proved much harder, however, to observe the jerky elastic response in an elastic measurement such as using the dynamic elastic Analyser (DMA).…”

Section: Phase Transitions 663mentioning

confidence: 97%

On the dynamics of ferroelastic domain boundaries under thermal and elastic forcing

Salje

2010

Phase Transitions

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“…The key observation is that domain wall movements are rarely a smooth function of the applied field but occur as sudden movements of pinning and un‐pinning events. Such sudden events are akin to Barkhausen jumps in magnetism and relate to avalanche formations inside the domain patterns . A typical measure is the energy of domain movements (often called “jerks” J) under the applied field.…”

Section: Four Domain Glass Temperaturesmentioning

confidence: 99%

Domain glasses: Twin planes, Bloch lines, and Bloch points

Salje

Carpenter

2015

Physica Status Solidi (b)

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Ferroelastic materials can develop complex domain structures, which have properties of glassy systems (non-ergodicity, glass dynamics, glass transitions, and freezing). Four characteristic temperatures are defined for such domain glasses: the dynamical nucleation temperature T d where local correlated clusters can form glass states within a (tweed-) nano structure, T o the Vogel-Fulcher temperature of these precursor nanostructures, T pt the phase transition temperature where the (ferroelastic) transition occurs, and T K the Kauzmann temperature where the complex domain structure freezes. T d exists in most ferroelastic materials whereas the other transitions depend on the complexity of the domain patterns and hence on their thermal history. Shear collapse and rapid thermal quench of ferroelastic crystals preferentially lead to domain glasses whereas slow anneal produces mostly highly correlated pattern such as stripe patterns or single domain crystals. Domain glasses are compared with structural glasses and several examples for domain glass features are discussed.

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“…These changes in the strain field give rise to the AE waves, which carry the dissipated energy in the process. 7 Indeed, an applied field could modify these barriers and thus influence the nucleation and growth processes.…”

Section: An Acoustic Emission Study Of the Effect Of A Magnetic Fieldmentioning

confidence: 99%

An acoustic emission study of the effect of a magnetic field on the martensitic transition in Ni2MnGa

Ludwig

Strothkaemper

Klemradt

et al. 2009

Applied Physics Letters

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Acoustic emission measurements during the martensitic transition of a Ni–Mn–Ga magnetic shape-memory alloy reveal the intermittent and jerky character of the transition. The distribution of the amplitude of the acoustic emission events shows power law behavior, which reflects the absence of characteristic scales in the process. In this paper we show that the distribution is affected by an applied magnetic field, which proves that the transition dynamics is strongly influenced by magnetostructural coupling taking place at multiple length scales. The martensitic start temperature and the power law exponent of the amplitude distribution are measured in dependence of the applied field.

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Acoustic emission and energy dissipation during front propagation in a stress-driven martensitic transition

Cited by 40 publications

References 18 publications

On the dynamics of ferroelastic domain boundaries under thermal and elastic forcing

On the dynamics of ferroelastic domain boundaries under thermal and elastic forcing

Domain glasses: Twin planes, Bloch lines, and Bloch points

An acoustic emission study of the effect of a magnetic field on the martensitic transition in Ni2MnGa

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