The purpose of The 11th International Conference on Key Engineering Materials (ICKEM 2021) is to bring together researchers, engineers and practitioners interested in the whole range of fields related to the materials that underpin modern technologies. Papers presenting original work were invited in the areas listed below.

1. Biomaterials in Different Applications
2. Novel Composite Materials in Vivid Applications
3. Application of Novel Materials in Civil Engineering
4. Advances in Materials and Manufacturing Technology
5. Materials and Technologies in Environmental Engineering
6. Studies on Corrosion, Coating, and Aspects of Chemical Engineering
7. Electrical, Electronic, and Optoelectronic Materials: Synthesis and Applications
8. Trends in the Development of Nanomaterials, Nanocomposites and Nanotechnology