Matches in SemOpenAlex for { <https://semopenalex.org/work/W2148138405> ?p ?o ?g. }
Showing items 1 to 77 of
77
with 100 items per page.
- W2148138405 abstract "Solid freeform fabrication is the near-net-shape manufacturing of components by sequentially stacking thin layers of material until complicated three dimensional shapes are produced. The operation is computer controlled and requires no molds. This exciting new field of technology provides engineers with the ability to rapidly produce prototype parts directly from CAD drawings and oftentimes little or no machining is necessary after fabrication. Techniques for freeform fabrication with several types of plastics and metals are already quite advanced and maybe reviewed in references 1 and 2. Very complicated plastic models can be fabricated by stereolithography, selective laser sintering, fused deposition modeling, or three-dimensional ink jet printing. Metals may be freeformed by the LENS{trademark} technique and porous ceramic bodies by three dimensional printing into a porous powder bed. However, methods for freeform fabrication that utilize particulate slurries to build dense ceramics and composites are not as well developed. The techniques that are being developed for the freeform fabrication of dense structural ceramics primarily revolve around the sequential layering of ceramic loaded polymers or waxes. Laminated Object Manufacturing and CAM-LEM processing use controlled stacking and laser cutting of ceramic tapes [2,3]. Similar to fused deposition modeling, ceramic loaded polymer/wax filaments are being usedmore » for the fused deposition of ceramics [2,4]. Extrusion freeform fabrication uses high pressure extrusion to deposit layers of ceramic loaded polymer/wax systems[1]. Modified stereolithographic techniques are also being developed using ceramic loaded ultraviolet curable resins [2]. Pre-sintered parts made with any of these techniques typically have 40-55 vol.% polymeric binder. In this regard, these techniques are analogous to powder injection molding of ceramics. Very long and complicated burnout heat treatments are necessary to produce a dense ceramic, free of organics. Heating rates of 0.2 degrees Celsius per minute are common. [5] Thus, while a part maybe rapidly prototype within a few hours, it takes several days to densify. In contrast, robocasting is a freeform fabrication technique developed at Sandia National Labs that utilizes particulate slurries but does not require organic binders. Since binder burnout is not an issue, a dense ceramic part maybe freeformed, dried, and sintered in less than 24 hours. In some regards, robocasting is analogous to the ceramic near-net-shape processing techniques, slip casting and gel casting [6]; however, robocasting is moldless and fabrication times can be quicker.« less" @default.
- W2148138405 created "2016-06-24" @default.
- W2148138405 creator A5015226372 @default.
- W2148138405 date "1999-10-28" @default.
- W2148138405 modified "2023-09-23" @default.
- W2148138405 title "Robocasting of Ceramics and Composites Using Fine Particle Suspensions" @default.
- W2148138405 hasPublicationYear "1999" @default.
- W2148138405 type Work @default.
- W2148138405 sameAs 2148138405 @default.
- W2148138405 citedByCount "3" @default.
- W2148138405 countsByYear W21481384052012 @default.
- W2148138405 countsByYear W21481384052018 @default.
- W2148138405 crossrefType "journal-article" @default.
- W2148138405 hasAuthorship W2148138405A5015226372 @default.
- W2148138405 hasConcept C134132462 @default.
- W2148138405 hasConcept C136525101 @default.
- W2148138405 hasConcept C142724271 @default.
- W2148138405 hasConcept C159985019 @default.
- W2148138405 hasConcept C191897082 @default.
- W2148138405 hasConcept C192562407 @default.
- W2148138405 hasConcept C204787440 @default.
- W2148138405 hasConcept C2777581544 @default.
- W2148138405 hasConcept C2777759229 @default.
- W2148138405 hasConcept C2778958987 @default.
- W2148138405 hasConcept C2779154291 @default.
- W2148138405 hasConcept C2780329122 @default.
- W2148138405 hasConcept C521977710 @default.
- W2148138405 hasConcept C523214423 @default.
- W2148138405 hasConcept C524769229 @default.
- W2148138405 hasConcept C54237361 @default.
- W2148138405 hasConcept C6648577 @default.
- W2148138405 hasConcept C71924100 @default.
- W2148138405 hasConceptScore W2148138405C134132462 @default.
- W2148138405 hasConceptScore W2148138405C136525101 @default.
- W2148138405 hasConceptScore W2148138405C142724271 @default.
- W2148138405 hasConceptScore W2148138405C159985019 @default.
- W2148138405 hasConceptScore W2148138405C191897082 @default.
- W2148138405 hasConceptScore W2148138405C192562407 @default.
- W2148138405 hasConceptScore W2148138405C204787440 @default.
- W2148138405 hasConceptScore W2148138405C2777581544 @default.
- W2148138405 hasConceptScore W2148138405C2777759229 @default.
- W2148138405 hasConceptScore W2148138405C2778958987 @default.
- W2148138405 hasConceptScore W2148138405C2779154291 @default.
- W2148138405 hasConceptScore W2148138405C2780329122 @default.
- W2148138405 hasConceptScore W2148138405C521977710 @default.
- W2148138405 hasConceptScore W2148138405C523214423 @default.
- W2148138405 hasConceptScore W2148138405C524769229 @default.
- W2148138405 hasConceptScore W2148138405C54237361 @default.
- W2148138405 hasConceptScore W2148138405C6648577 @default.
- W2148138405 hasConceptScore W2148138405C71924100 @default.
- W2148138405 hasLocation W21481384051 @default.
- W2148138405 hasOpenAccess W2148138405 @default.
- W2148138405 hasPrimaryLocation W21481384051 @default.
- W2148138405 hasRelatedWork W1486055293 @default.
- W2148138405 hasRelatedWork W1606592423 @default.
- W2148138405 hasRelatedWork W165305200 @default.
- W2148138405 hasRelatedWork W1979844303 @default.
- W2148138405 hasRelatedWork W1981003742 @default.
- W2148138405 hasRelatedWork W1998953395 @default.
- W2148138405 hasRelatedWork W1999323383 @default.
- W2148138405 hasRelatedWork W2087960686 @default.
- W2148138405 hasRelatedWork W2094123423 @default.
- W2148138405 hasRelatedWork W2250464 @default.
- W2148138405 hasRelatedWork W2532606581 @default.
- W2148138405 hasRelatedWork W2784326945 @default.
- W2148138405 hasRelatedWork W2788713114 @default.
- W2148138405 hasRelatedWork W2885344615 @default.
- W2148138405 hasRelatedWork W2974321938 @default.
- W2148138405 hasRelatedWork W3092193080 @default.
- W2148138405 hasRelatedWork W75894390 @default.
- W2148138405 hasRelatedWork W1954100732 @default.
- W2148138405 hasRelatedWork W281439790 @default.
- W2148138405 hasRelatedWork W30732355 @default.
- W2148138405 isParatext "false" @default.
- W2148138405 isRetracted "false" @default.
- W2148138405 magId "2148138405" @default.
- W2148138405 workType "article" @default.