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SUMMARY:IEM Distinguished Lecturers Seminar: Advances in Additive Manufact
 uring of Architected and Functional Materials
DTSTART:20250520T131500
DTEND:20250520T140000
DTSTAMP:20260921T140801Z
UID:c6872e4880090084fa68f8bd3bac30a011091960b08615e12cd4edcc
CATEGORIES:Conferences - Seminars
DESCRIPTION:Christopher M. Spadaccini\, Ph.D.\,\nDivision Leader\, Materia
 ls Engineering Division\, Lawrence Livermore National Laboratory\, USA\n**
 *Coffee and Sweets will be served at 13:00 in the hall of BM 5202***\n\n\n
 Abstract\nIn this presentation\, we will cover some of the latest work in 
 advanced and custom additive manufacturing processes for the fabrication o
 f architected materials and functional devices. The concept of architected
  materials revolves around the notion that material properties are traditi
 onally governed by the chemical composition and spatial arrangement of con
 stituent elements at multiple length-scales. This usually limits material 
 properties with respect to each other creating trade-offs when selecting m
 aterials for specific applications. For example\, strength and density are
  inherently linked so that\, in general\, the more dense the material\, th
 e stronger it is in bulk form. We will review the latest in design methods
  such as topology optimization\, as well as advanced additive micro- and n
 anomanufacturing techniques to create new material systems with previously
  unachievable property combinations. These processes include projection mi
 crostereolithography (PuSL)\, direct ink writing (DIW)\, and electrophoret
 ic deposition (EPD) as well as new advanced concepts such as volumetric ad
 ditive manufacturing (VAM)\, computed axial lithography (CAL)\, parallel t
 wo-photon polymerization (2PP)\, liquid metal jetting (LMJ)\, and diode-ba
 sed additive manufacturing of metals (DiAM). The performance of the result
 ing material constructs is fundamentally controlled by geometry at multipl
 e length-scales\, from the nano- to the macroscale\, rather than chemical 
 composition alone. We have fabricated and will review the resulting proper
 ties of these mechanical metamaterials in polymers\, metals\, ceramics\, a
 nd combinations thereof. These new processes and concepts can also be appl
 ied to functional materials such as those for supercapacitor electrodes\, 
 optical components\, and fluidic systems. A review of these functional sys
 tems will be followed by a brief discussion of future directions.\n\nBio\n
 Christopher Spadaccini is currently the Materials Engineering Division (ME
 D) Leader in the Engineering Directorate at Lawrence Livermore National La
 boratory. He has been working in advanced additive manufacturing process d
 evelopment and architected materials for over 17 years and has over 75 pee
 r-reviewed publications including 4 book chapters\, more than 150 invited 
 presentations\, and 59 patents awarded or pending.\n\nSpadaccini founded s
 everal new fabrication laboratories at LLNL for additive manufacturing and
  process development focused on micro and nano-scale features and mixed ma
 terial printing\, as well as scale-up for higher throughput. He was the fo
 unding Director of the Center for Engineered Materials and Manufacturing p
 rior to becoming a division leader and co-led efforts to establish the Adv
 anced Manufacturing Laboratory\, a new facility in the Livermore Valley Op
 en Campus. In his role as MED division leader\, he manages an organization
  of approximately 600 staff including engineers and scientists\, post-docs
 \, students\, machinists\, and technicians\, as well as over a dozen facil
 ities. He has been a member of the LLNL technical staff for 21 years.\n\nS
 padaccini has also been a lecturer in the Chemical\, Materials\, and Biome
 dical Engineering Department at San Jose State University\, where he taugh
 t graduate courses in heat\, mass\, and momentum transport as well as an a
 djunct faculty member at the University of California\, Davis\, in the Che
 mical Engineering Department. He received his B.S.\, M.S.\, and Ph.D. degr
 ees from the Department of Aeronautics and Astronautics at MIT.\n 
LOCATION:BM 5202 https://plan.epfl.ch/?room==BM%205202 https://epfl.zoom.u
 s/j/63124898719
STATUS:CONFIRMED
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