Microwave Beam Shaping for Processing Geometrically Complex Ceramics
Abstract
Selective volumetric material manufacturing, a type of additive manufacturing, is the creation of a solid object or surface within a volume of loose material, such as precursor powder. Interacting with the loose material is done on the length of the intended object, unlike typical additive processing techniques, which build the object path-by-path and layer-by-layer. This means that the intended volumetric object can be created with one or several discrete events as opposed to building the object using multiple mm or um layers. One example of this volumetric processing is the use of a high energy microwave to generate heat in a specified shape within a volume of loose dielectric ceramic powder. The microwave beam deposits energy into desired locations within the volume, sintering these locations into an object or surface of desired shape. Knowledge of the electromagnetic, thermal, and mechanical properties of the microwave system and precursor materials used are essential for predictively generating the desired shape and make volumetric material manufacturing non-trivial. This work is a direct extension of our previous work and represents our ongoing efforts toward manufacturing volumetric parts utilizing microwave sintering of ceramics.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 28, 2023
- Accession Number
- AD1220969
Entities
People
- A. Birnbaum
- A. Geltmacher
- Athanasios Iliopoulos
- B. Graber
- Edward P. Gorzkowski
- Evan Patterson
- G. M. Petrov
- J. Coombs
- J. Michopoulos
- J. Steuben
- Lee J Johnson
- N. Apetre
- P. Bernardt
- R. Fishcher
Organizations
- United States Naval Research Laboratory