Chen, T.; Lu, W.; Li, J.; Chen, S.; Li, C.; Weng, G. J.: Tailoring tensile ductility of thin film by grain size graded substrates. International Journal of Solids and Structures 166, pp. 124 - 134 (2019)
Liu, C.; Lu, W.; Weng, G. J.; Li, J.: A cooperative nano-grain rotation and grain-boundary migration mechanism for enhanced dislocation emission and tensile ductility in nanocrystalline materials. Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing 756, pp. 284 - 290 (2019)
Li, J.; Weng, G. J.; Chen, S.; Wu, X.: On strain hardening mechanism in gradient nanostructures. International Journal of Plasticity 88, pp. 89 - 107 (2017)
International researcher team presents a novel microstructure design strategy for lean medium-manganese steels with optimized properties in the journal Science
The goal of this project is the investigation of interplay between the atomic-scale chemistry and the strain rate in affecting the deformation response of Zr-based BMGs. Of special interest are the shear transformation zone nucleation in the elastic regime and the shear band propagation in the plastic regime of BMGs.
Oxides find broad applications as catalysts or in electronic components, however are generally brittle materials where dislocations are difficult to activate in the covalent rigid lattice. Here, the link between plasticity and fracture is critical for wide-scale application of functional oxide materials.
The fracture toughness of AuXSnY intermetallic compounds is measured as it is crucial for the reliability of electronic chips in industrial applications.
Within this project we investigate chemical fluctuations at the nanometre scale in polycrystalline Cu(In,Ga)Se2 and CuInS2 thin-flims used as absorber material in solar cells.