In Situ Nanoindentation at Elevated Humidities

Abstract Nanoindentation is one of the most widespread methods to measure mechanical performance complex materials systems. As it allows for local characterization composite architectures with sub‐micron spatial features and a large range properties, nanoindentation commonly used properties biological materials. In situ nanoindentation, further development approach, powerful tool analysis plastic deformation failure Here, samples can be mechanically manipulated using indenter, while their behavior monitored resolution scanning electron microscope (SEM). Indeed, numerous studies demonstrate potential this approach studying fundamental material characteristics. However, so far, these measurements are performed in high‐vacuum conditions inherent conventional microscopy method, which irrelevant when structures that evolved perform hydrated conditions. work, ability conduct experiments under controlled humidity temperature inside an environmental SEM developed. This technique has become crucial design many domains where significant impact on performance. These include organic/polymer systems, microelectronic optoelectronic devices, catalysis, batteries, more.