This collection brings together engineers, scientists, scholars, and entrepreneurs to present their novel and innovative contributions in the domain specific to metal-matrix composites and on aspects specific to  modeling, analysis, measurements, and observations specific to microstructural advances. Topics include but are not limited to:·         Metals and metal-matrix composites·         Nano-metal based composites·         Intermetallic-based composites Contributions in the above topics connect to applications in industry-relevant areas: automotive, energy applications, aerospace, failure analysis, biomedical and healthcare, and heavy equipment and machinery.