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Now showing items 11-20 of 25
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 ...
Quantifying the width and angle of inclined cracks using laser-spot lock-in thermography
(Elservier, 2021-06-30)
In this work we introduce a method to determine the width and the orientation of tilted cracks. This method
combines laser-spot lock-in thermography and calculations of the sample temperature by means of finite ...
Retrieving the thermal diffusivity and effusivity of solids from the same frequency scan using the front photopyroelectric technique
(IOP Science, 2017-09-14)
The photopyroelectric (PPE) technique in the front configuration consists in illuminating one
surface of a pyroelectric slab while the other surface is in contact with the test sample. This
method has been widely used ...
Measuring the thermal resistance of vertical interfaces separating two different media using infrared thermography
(Elsevier, 2019)
We propose a method to measure the thermal contact resistance at the vertical interface between two materials using lock-in infrared thermography with laser spot heating. We found an analytical expression for the surface ...
Magnetocaloric properties and unconventional critical behavior in (Gd,Tb)6(Fe,Mn)Bi2 intermetallics
(Elsevier, 2020-06-17)
The magnetic and magnetocaloric properties of the intermetallic family (Gd,Tb)6(Fe,Mn)Bi2 have been studied from 2 K to temperatures above the respective Curie temperatures TC. The substitution of Gd by Tb (Gd6FeBi2, ...
Comprehensive study of the magnetic phase transitions in Tb3Co combining thermal, magnetic and neutron diffraction measurements
(Elsevier, 2019-05-22)
A comprehensive study of the magnetic phase transitions in Tb3Co has been undertaken combining different techniques. Using single crystal neutron diffraction in the paramagnetic state a weak crystal structure distortion ...
Laser-spot step-heating thermography to measure the thermal diffusivity of solids
(Elsevier, 2021-06-15)
In this work we show that laser-spot step-heating thermography allows measuring the thermal diffusivity of solids accurately. It consists in illuminating the sample surface with a continuous-wave focused laser spot and ...
Crystallographic, magnetic and magnetocaloric properties in novel intermetallic materials R3CoNi (R = Tb, Dy, Ho, Er, Tm, Lu)
(Elsevier, 2021-02-04)
A family of novel intermetallic R3CoNi with heavy rare earth ions has been synthesized (R = Tb, Dy, Ho, Er, Tm, Lu) and a study of the crystal structure of these phases performed. All the compounds adopt the rhombohedral ...