Phys.org August 19, 2024 Researchers in Spain explored the design of a space habitat thermally controlled using phase change materials (PCMs) to maintain a suitable, habitable temperature inside the habitat by isolating it from the external solar radiation. They studied the system numerically considering only diffusive heat transport scenario with practical application to microgravity or reduced gravity environments. The system dynamics were explored for a wide range of governing parameters, including the length of the PCM cell L, the thermo-optical properties at the external boundary of the habitat wall exposed to solar radiation, the eclipse fraction of the solar cycle, […]
Tag Archives: Phase change materials
Researchers develop phase-change key for new hardware security
Nanowerk November 18, 2022 An international team of researchers (Singapore, UK, South Korea) has developed a new type of hardware security device called physical unclonable function (PUF) using phase-change materials. They fabricated devices switch reversibly between the glassy amorphous state and crystal orderly state. Then they used the variation in the device’s electrical conductance to construct the PUF due to the inherent randomness arising from the manufacturing process, which is not shown by conventional silicon-based devices. They modelled the characteristics of actual phase-change devices to generate a simulation of many phase-change-based PUFs and tested their security using machine learning. They […]