New material properties discovered by researchers at the University of Miami may impact ongoing research into thermoelectric materials, which are useful in power generation, energy detection and refrigeration and cooling. Lead author Joshua Cohn, professor and chairman of the UM Department of Physics, and his colleagues report new properties of a metal known as lithium … [Read more...]
New Research Shows Unlimited Heat Conduction Potential in Graphene
An international team of scientists has found the thermal conductivity of graphene changes depending on the size of the material sample, a discovery they say challenges the fundamental laws of heat conduction for extended materials. Davide Donadio, head of a research group at the Max Planck Institute for Polymer Research (MPI-P) in Germany and his colleagues from the National … [Read more...]
Solving the Thermoelectric Mystery
Thermoelectric materials—substances that exhibit the so-called thermoelectric effect, in which a temperature difference creates an electric potential or vice versa—have been known for decades and employed in applications including power generation and refrigeration. Despite their commercial use, however, scientists have remained somewhat baffled as to why some of these … [Read more...]
Waste Sulfur May Improve Thermal Imaging Lenses
The discovery of a new use for waste material left over refining fossil fuels could lead to benefits for the thermal imaging industry. A University of Arizona-led international team has found that the sulfur left over from the refining process can be transformed into inexpensive, lightweight plastic lenses for infrared detection devices. "We have for the first time a polymer … [Read more...]
Polymer-Based Thermal Interface Material Cools Devices at 200°C
Scientists have developed a new polymer-based thermal interface material (TIM) capable of conducing heat 20 times better than conventional polymer. Reliable in temperatures of up to 200°C, the modified material can be fabricated on heat sinks and heat spreaders and adheres well to components in servers, LEDs and mobile devices. “Thermal management schemes can get more … [Read more...]
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