Fig. 1: e-CE cycle and temperature change of GNS/HHs.
From: Shearo-caloric effect enhances elastocaloric responses in polymer composites for solid-state cooling
a |ΔTadi| of GNS/HHs on cooling process. All data were collected at a strain level of 600%. The error bars represent the average values of 6 tests under the same conditions. b Typical strain evolution (analogized from the displacement of the slide table) and the resulting temperature variation of 1GNS/HH during a single e-CE cycle. During P1–P2, the sample is stretched adiabatically by a uniaxial tension, increasing the surface temperature (Ta to Th). During P2–P3, the strain remains constant, and the thermal entropy decreases isothermally until T = Ta. During P3–P4, the specimen retracts adiabatically with the unloading of the tension, further decreasing the temperature of the specimen (Ta to Tc). During P4–P1, the thermal entropy of the material increases until T = Ta. c Infrared thermal images of 1GNS/HH at different processes were recorded using an infrared thermal imager. The dashed line describes the outlines of the sample. The scale bar is 20 mm. d The specific heat versus temperature curves tested by DSC.
