Flexible temperature sensors can work in an environment of 1200 ℃

Recently, a new research achievement from the field of micro and nano manufacturing has provided new ideas for flexible sensors to break through the bottleneck of high-temperature applications. Dr. Liu Zhaojun, Professor Tian Bian, Academician Jiang Zhuangde, and their collaborative team from the Precision Engineering Research Institute of the School of Mechanical Engineering at Xi'an Jiaotong University have developed a high-temperature flexible temperature sensor with good temperature sensitivity for the first time.
The temperature sensor mainly consists of two parts, a temperature sensitive layer made of two different materials and a flexible substrate.

In the actual operation of preparing sensors, Tian Bian, Liu Zhaojun, and others used organic adhesives to mix functional powders to complete the slurry configuration, and used high-temperature heat treatment to remove excess organic substances such as epoxy resin and terpineol from the film. At the same time, the team also achieved specific curved preparation of functional films based on the advantages of deformability and conformability of flexible materials for different application surfaces.

The prepared flexible temperature sensor can be attached to different curvature surfaces, such as blades. At the same time, it also has the advantages of ultra-thin and ultra-light. This study is the first to achieve flexible sensors operating in the extremely wide temperature range of -190 ℃ to -1200 ℃, and the testing sensitivity has also reached a considerable 226.7 microvolts per degree Celsius（ μ V/℃).