# Kinetics of Intrinsic Stress in Nanocrystalline Films Source: [Kinetics of Intrinsic Stress in Nanocrystalline Films]() Collection index: [llms.txt]() Data updated: 2025-10-25T08:23:05.142Z Authors: Enrique Vasco, Mar\\'ia J. Ram\\'irez-Peral, Alfredo Jacas-Rodr\\'iguez, Celia Polop, ((1) Instituto de Ciencia de Materiales de Madrid-CSIC, (2) Departamento de F\\'isica de la Materia Condensada-Universidad Aut\\'onoma de Madrid, (3) Condensed Matter Physics Center-Universidad Aut\\'onoma de Madrid, (4) Instituto Universitario de Ciencia de Materiales Nicol\\'as Cabrera-Universidad Aut\\'onoma de Madrid) Published: 2021-02-02T22:01:48.000Z ## Abstract Conventional polycrystalline materials acquire high levels of intrinsic mechanical stress (ranging from MPa to a few GPa) during preparation and use, but this stress decays quickly (~minutes) to small residual values (~kPa) under standard resting conditions. Nanocrystalline materials reach similar or even higher levels of intrinsic stress, but surprisingly retain a significant portion of this stress over much longer time scales (~hours). This behavior directly contradicts current theoretical models that predict stress relaxation through diffusive currents. Diffusive currents, which flow mainly on the surfaces of grains, are expected to produce faster relaxation kinetics when the stress to be released is higher. In this work, we study the kinetics of intrinsic stress relaxation in nanocrystalline films and identify the limitations of this process as a preliminary step towards designing a strategy for high-stress stabilization in nanostructured systems. ## Recorded benchmark results A research result applies to its stated dataset, split, metric and evaluation configuration. Compare like-for-like settings, preserve the metric's unit and direction, and distinguish paper-reported results from independent reproduction. The best result recorded here is not a claim of exhaustive, current global coverage. ## Original sources and implementation [Original paper]() [PDF]()