Bulk Metallic Glasses and Matrix Composites (BMG-MCs)

Our laboratory is at the forefront of developing and processing Bulk Metallic Glasses (BMGs) and their Matrix Composites (BMG-MCs), which are advanced materials defined by their disordered, amorphous internal structure. Unlike traditional crystalline metals, BMGs lack grain boundaries and dislocations, granting them extraordinary mechanical strength, high hardness, and superior elastic limits.

Research Pillars

  • Overcoming Size Limitations via Thermoplastic Joining: One of the main challenges for BMGs is the casting size constraint dictated by high required cooling rates. We have developed a simple and scalable thermoplastic joining method using uniaxial compression within the supercooled liquid region (SLR). This technique exploits the unique viscous flow behavior of BMGs to achieve metallic bonding at the atomic scale, effectively creating larger, seamless functional components.
  • Additive Manufacturing & FFF Technology: We are adapting Fused Filament Fabrication (FFF)—typically used for polymers—to process metallic glasses. By utilizing alloys with wide supercooled liquid regions (up to 117 °C) and high thermal stability, we enable the 3D printing of complex metallic geometries at lower costs than traditional laser-based methods.
  • High-Performance Composites & Biomedical Applications: To improve the inherent brittleness of pure glasses, we fabricate in situ BMG-matrix composites where nanocrystalline phases are embedded in an amorphous matrix. These materials are being evaluated for next-generation medical implants, such as stents and artificial joints, due to their excellent biocorrosion resistance in physiological fluids and low cytotoxicity to human cells.
  • Biały, M., Łaszcz, A., Chęcmanowski, J. & Hasiak, M. Seamless thermoplastic joining of ZrCu-based bulk metallic glasses via simple high-strain uniaxial compression. Materials & Design 261, 115392 (2026). https://doi.org/10.1016/j.matdes.2025.115392
  • Hasiak, M., Sobieszczańska, B., Łaszcz, A., Biały, M., Chęcmanowski, J. & Zatoński, T. Fabrication and comprehensive evaluation of Zr-based bulk metallic glass matrix composites for biomedical applications. Science China Materials 67(12), 4087–4100 (2024). https://doi.org/10.1007/s40843-024-3059-6
  • Biały, M., Hasiak, M. & Łaszcz, A. A novel approach to analysis of complex crystallization behavior in Zr-based bulk metallic glass by non-isothermal kinetics studies. Metallurgical and Materials Transactions A 54, 1428–1442 (2023). https://doi.org/10.1007/s11661-023-06997-y
  • Hasiak, M., Sobieszczańska, B., Łaszcz, A., Biały, M., Chęcmanowski, J., Zatoński, T., Bożemska, E. & Wawrzyńska, M. Production, Mechanical Properties and Biomedical Characterization of ZrTi-Based Bulk Metallic Glasses in Comparison with 316L Stainless Steel and Ti6Al4V Alloy. Materials 15, 252 (2022). https://doi.org/10.3390/ma15010252
  • Hasiak, M., Tkaczyk, M., Łaszcz, A. & Olszewski, J. Effect of Alloying Additions on Microstructure, Mechanical and Magnetic Properties of Rapidly Cooled Bulk Fe-B-M-Cu (M = Ti, Mo and Mn) Alloys. Metallurgical and Materials Transactions A 53, 556–572 (2022). https://doi.org/10.1007/s11661-021-06530-z
  • Hasiak, M., Kaleta, J., Biały, M. & Łaszcz, A. Crystallization kinetics and mechanical properties of rapidly quenched Zr50Ti5Cu10Ni10Be25 alloy for additive manufacturing. Proceedings IRF2020: 7th International Conference Integrity-Reliability-Failure, 59-60 (2020). https://paginas.fe.up.pt/~irf/Proceedings_IRF2020/
Amadeusz Łaszcz
Amadeusz Łaszcz
Researcher