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Thermal Diffusivity Measurement of Laser‐ Deposited AISI H13 Tool Steel and Impact on Cooling Performance of Hot Stamping Tools
(MDPI, 2020-01-20)
Additive manufacturing is a technology that enables the repair and coating of high‐addedvalue
parts. In applications such as hot stamping, the thermal behavior of the material is essential
to ensure the proper operation ...
Measurement of the thermal conductivity of fluids using laser spot lock-in thermography
(Elsevier, 2020-03-25)
In this work, we propose a new method to retrieve the thermal conductivity of fluids, kf, using laser spot
lock-in infrared thermography. The measurement cell consists in two paralepidid blocks separated by a
narrow gap ...
Measuring the in-plane thermal diffusivity of moving samples using laser spot lock-in thermography
(Elsevier, 2020-01-21)
In this work we deal with samples that move at constant speed and are illuminated by a modulated and focused
laser beam. We have obtained a general expression for the surface temperature of these moving samples: it is
valid ...
Measurement of in-plane thermal diffusivity of solids moving at constant velocity using laser spot infrared thermography
(Elsevier, 2018-11-07)
In this work, an infrared thermography setup is proposed to measure the in-plane thermal diffusivity of
(an)isotropic samples that are moving at constant velocity, as it is the case of in-line production or in-line
quality ...
Thermal effusivity measurements of thermal insulators using the photopyroelectric technique in the front configuration
(Elsevier, 2018-03-21)
In the photopyroelectric (PPE) technique in the front configuration one surface of a pyroelectric sensor is illuminated by a modulated laser beam, whereas the other surface is in contact with the sample under study. A ...
Effect of high-energy ball-milling on the magnetostructural properties of a Ni45Co5Mn35Sn15 alloy
(Elsevier, 2020-12-23)
[EN] The effect of high-energy ball-milling on the magnetostructural properties of a Ni45Co5Mn35Sn15 alloy in austenitic phase at room temperature has been analyzed by neutron and high-resolution X-ray diffraction. The ...
Magnetocaloric effect enhancement driven by intrinsic defects in Ni-Mn-Sn- Co alloys
(Elsevier, 2019-02-05)
[EN] The influence of mechanically-induced defects on the magnetostructural properties is analyzed in a Ni-Co-Mn-Sn alloy subjected to soft milling and subsequent annealing treatments. It is found that, opposite to what ...
119Sn Mössbauer Spectroscopy for assessing the local stress and defect state towards the tuning of Ni-Mn-Sn alloys
(AIP, 2017-05-02)
[EN] The influence of defects and local stresses on the magnetic properties and martensitic transformation in Ni50Mn35Sn15 is studied at macroscopic and atomic scale levels. We show that both the structural and magnetic ...
Identification of Ni-vacancy defect in Ni-Mn-Z (Z = Ga, Sn, In): An experimental and DFT positron annihilation study
(APS, 2019-02-21)
[EN] By means of experimental positron-annihilation-lifetime measurements and theoretical density functional theory (DFT) positron-lifetime calculations, vacancy-type defects in Ni50Mn50−xSnx (x=25, 20,15,13,10) and ...
Observation of a charge delocalization from Se vacancies in Bi2Se3: A positron annihilation study of native defects
(APS, 2016-07-27)
[EN] By means of positron annihilation lifetime spectroscopy, we have investigated the native defects present in Bi2Se3, which belongs to the family of topological insulators. We experimentally demonstrate that selenium ...