Session Co-Chairs:
- Laura Patel, Fluor
- Bill Smith, LLNL
Schedule:
| PRESENTATION | SPEAKER |
| Direct-Ink Writing of Designer Materials | Cheng Zhu, LLNL |
| Work Processes in the Mining Industry | Jonathon Brown, Fluor |
|
|
Jim Honeyman, CH2M Hill
|
Direct-Ink Writing of Designer Materials
Cheng Zhu, Eric B. Duoss, Joshua D. Kuntz, Christopher M. Spadaccini, LLNL
3D printing is an emerging additive manufacturing technique, one which has been successfully commercialized for both prototyping and distributed manufacturing with industrial applications in architectures, automobile, aerospace, engineering, food, and biomedical areas. Direct-ink writing is a rapid and low-cost 3D printing route that enables design and patterning of planar and three-dimensional (3D) structures with functional ink materials. In this filamentary printing approach, a concentrated ink with tailored rheological properties is extruded through a micronozzle(s) that is translated using a three-axis positioning stage. The ink rapidly solidifies to maintain its shape so that spanning or free-standing structures can be deposited both in- and out-of-plane. With this approach, we aim to demonstrate multi-scale (e.g., from the nano- to macro- length scales) assembly of arbitrarily complex, hierarchical 3D structures composed of multiple materials (e.g., polymers, metals, and ceramics). Here, we present an overview of our recent work on developing functional inks for printing 3D microstructures with designs that have been optimized for structural and functional properties.
Work Processes in the Mining Industry
Jonathon Brown, Fluor
From the time a potential exploration target is identified by a Geologist until the time the processing facilities are put into operation can be a long drawn out affair as the Owners, among other concerns, secure funds, obtain permits, and identify the optimum processing route. The identification of the preferred process route involves a significant number of studies while laboratory and pilot plant testing is conducted with the aim of maximizing the plant’s performance and generating sufficient engineering data to properly establish the project’s Process Design Criteria. In this session the speaker will discuss the process development route most commonly adopted by process engineers in the Minerals industry and discuss the interfaces with other disciplines.
US Government's Technology Development Approach with Application to Process Development for K-Basin Sludge Processing at the Hanford Nuclear Site
Jim Honeyman, CH2M Hill
The successful and timely environmental cleanup of a complex site such as the Hanford Site requires the careful selection of the best technologies. In many cases the required technology does not exist, or if a technology appears to be appropriate, it was designed for other purposes. How can these technologies be evaluated? Or in the case of no existing relevant technology, how can the technology be developed? Experience at the Hanford Site, as well as other DOE operations, has resulted in the use of a systematic process development approach. The methodology is also used by NASA and the Department of Defense for the development or adaptation of processes to meet to the specific needs or requirements of their missions. The methodology is formal and approaches the technology development in specific stages.