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FIRST MULTI-SCALE THEORY OF SINTERING: ON THE CUTTING EDGE OF SINTERING VIRTUAL REALITY

FIRST MULTI-SCALE THEORY OF SINTERING: ON THE CUTTING EDGE OF SINTERING VIRTUAL REALITY Prof. Eugene Olevsky, San Diego State University, DMR-0313346.

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FIRST MULTI-SCALE THEORY OF SINTERING: ON THE CUTTING EDGE OF SINTERING VIRTUAL REALITY

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  1. FIRST MULTI-SCALE THEORY OF SINTERING: ON THE CUTTING EDGE OF SINTERING VIRTUAL REALITY Prof. Eugene Olevsky, San Diego State University, DMR-0313346 The first multi-level meso-macro-scale theory of sintering, is being developed. An innovative parallel computing procedure for linking different material scales has been elaborated. This allowed the reduction of a cumbersome and expensive experimental analysis of material properties at various length scales. The pore-grain structure evolution at the mesoscopic scale corresponds to the evolution of properties of each finite element at the macroscopic scale. The results of the meso-scale simulations “feed” the model of sintering at the macroscopic scale. As an example, the problem of sintering, important for the optimization of the fabrication of electronic circuitry (e.g. sintering of multi-layer composites with vias) is successfully solved in collaboration with Sandia National Laboratories. [E. Olevsky et al., Phil. Mag., 85, 2123-2146 (2005)] Meso-structure evolves within each finite element of the macroscopic body during sintering

  2. DISCOVERY TEAM APPROACHProf. Eugene Olevsky, San Diego State University, DMR-0313346 The PI collaborates with Professors of Mathematics from the SDSU Computational Sciences Center (CSC). The PI and his collaborators have established the Discovery Team structure by meeting regularly with each graduate student to monitor research progress and offer guidance and advice. Students benefit from this multidisciplinary approach to multi-scale modeling of sintering through teamwork, a strategy that better prepares them to tackle future job expectations in research laboratories following graduation. The project contributes also to the development of the two Joint Doctoral Programs: between San Diego State University and University of California, San Diego (in Applied Mechanics and Materials Science) and between San Diego State University and Claremont Graduate University (in Computational Materials Science). The students already co-authored 8 publications including 3 papers in refereed journals. Ph.D. Students B. Kushnarev, G. Brown and Master Student E. Bruce are members of the Discovery Team Ph.D. Students B. Kushnarev (SDSU-CGU JDP) and X. Wang (SDSU-UCSD JDP) explore virtual reality of sintering

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