Functionally graded cylindrical structures employ continuous variations of material composition through their thickness to tailor thermal and mechanical performance under service conditions. By ...
Wire arc additive manufacturing (WAAM) offers rapid, near-net-shape production of large metal components by depositing successive layers of wire feedstock melted by an electric arc. However, the ...
When temperatures increase, most materials tend to expand, causing a change in material dimensions. When two materials that exhibit different thermal expansion behaviors are in direct contact, such as ...
Thermal-induced stress is now one of the leading causes of transistor failures, and it is becoming a top focus for chipmakers as more and different kinds of chips and materials are packaged together ...
Managing thermal and mechanical stress in multi-die assemblies will require a detailed knowledge of how and where a device will be used, how it will be packaged, and where stresses could cause ...
Perovskite solar cells are highly efficient and low cost in production. However, they still lack stability over the decades under real weather conditions. An international research collaboration has ...
A group of researchers led by Helmholtz-Zentrum Berlin (HZB) in Germany and China’s Henan University investigated repeated thermal stress cycles, reflecting diurnal cycles, on the degradation of metal ...
In the experiment, perovskite solar cells were repeatedly cooled to minus 150 degrees Celsius and then heated to plus 150 degrees Celsius. The changes in the microstructure of the perovskite layer and ...
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