Maria L. Nó

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Shape memory alloys undergo reversible transformations between two distinct phases in response to changes in temperature or applied stress. The creation and motion of the internal interfaces between these phases during such transformations dissipates energy, making these alloys effective mechanical damping materials. Although it has been shown that(More)
" Thermomechanical behavior at the nanoscale and size effects in shape memory alloys. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story(More)
Convergent-beam electron diffraction (CBED) and large-angle convergent-beam electron diffraction (LACBED) techniques are well adapted to the characterization of several types of crystal defects. In fact, dislocations, grain boundaries and stacking faults have already been successfully characterized with these methods. In the present paper, we describe the(More)
Measurements o f internal f r ic t ion and modulus a t low temperature for d i f ferent amounts o f hydrogen have shorn that the a'component of the a peak i n Iron can appear simultaneously with the S-K(H) peak for a large range of amount o f hydrogen. These r e s u l t s allow u s t o conclude t ha t the geometrical kink mobility on screw dislocat ions i s(More)
  • Paula Simas, M. Castillo-Rodríguez, +4 authors J. San Juan
  • 2014
This work focuses on the high-temperature mechanic properties of a 3 mol % yttria zirconia polycrystals (3YTZP), fabricated by hot-pressureless sintering. Systematic measurements of mechanical loss as a function of temperature and frequency were performed. An analytical method, based on the generalised Maxwell rheological model, has been used to analyse the(More)
Shape-memory alloys capable of a superelastic stress-induced phase transformation and a high displacement actuation have promise for applications in micro-electromechanical systems for wearable healthcare and flexible electronic technologies. However, some of the fundamental aspects of their nanoscale behaviour remain unclear, including the question of(More)
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