Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 17 of 17 for “"slip casting"”.
-
Near-Net Shaping and Additive Manufacturing of Ultra-High Temperature Ceramics via Colloidal Processing
Ceramic colloidal processing routes such as slip casting, gelcasting and direct ink writing provide valuable insight into the role of interaction forces between particles, solvents, and polymeric additives in the rheology, particle packing, and strength of a ceramic green body. For …
-
Fabrication of engineered ceramic components by the slurry-based three dimensional printing process
… is controlled by slurry stability and the slip casting rate. Capillary pressure must be controlled to produce crack-free powder beds. A critical saturation thickness (CST) was identified above which powder beds would crack. The CST increased with variables that reduced the capillary …
-
Synthesis, Microstructure and Mechanical Properties of Titanium with Controlled Levels of Porosity
… work is concerned with a study of a ceramic casting technique, slip casting, to create porous Ti products and the effect of porosity on the mechanical properties and gas permeability of Ti compacts. An optimised Ti slurry was developed from 43 vol.% of Ti powder, 0.3 dw.% of dispersant, 0.8 …
-
Reducing powder bed layer defects in slurry-based three dimensional printing
… such that they merge together prior to slip casting. Line merging differs from nozzle rastering in two ways: lines are deposited in only one direction (during the return pass the nozzle is put into a catch position), and the cycle time between depositing lines is reduced from …
-
Developing a low-cost ceramic micro-porous water filter for removal of microorganisms that cause common diseases
… therefore important to pursue. The traditional slip casting process was used develop a micro-porous ceramic water filter. The method was found to be more suitable than either extrusion or die casting for manufacturing a locally suitable, low cost ceramic water filter. Slip casting, requiring …
-
Colloidal Processing, Microstructural Evolution, and Anisotropic Properties of Textured Ultra-High Temperature Ceramics Prepared Using Weak Magnetic Fields
… UHTCs were prepared by magnetically assisted slip casting (MASC) in weak magnetic field (B ~ 0.5 T). Analytical calculations describing the balance of torques acting on the suspended particles suggested that texture would form at such low magnetic fields. The calculations include a novel …
-
Self-Replenishing, Wear-Resistant and Anti-Sticking Surfaces Based on Liquid Impregnation of Microstructured Mesoporous α-AI₂O₃ [Alpha Alumina] Matrices
… MPA samples was developed using replication and slip casting techniques. The microstructures are first replicated into polydimethylsiloxane (PDMS) membranes using excimer laser ablated polycarbonate sheets and are subsequently employed as molds in the alumina slip casting process. The developed …
-
The effect of sintering temperature on potassium feldspar addition into claytan porcelain
… potassium feldspar. The study was done using the slip casting. Slip added with potassium feldspar was poured into a plaster mold and then dried. The samples were sintered at temperature 800oC, 900oC, 1000oC and 1100oC with heating rate of 10oC/min and 1 hour holding time. The samples were …
-
Studies on Sintering Silicon Carbide-Nanostructured Ferritic Alloy Composites for Nuclear Applications
… composites were successfully fabricated through slip casting of an NFA-SiC co-suspension.
-
Synthesis and characterization of ultra violet curable renewable polymer graphite composites
… composites were prepared through a film slip casting method at room temperature wherein graphite particles of various weight loadings were mixed with mass proportion 2:1 of renewable monomer and Methylene Diphenyl Diisocyanate, MDI respectively. The main concerned was given to renewable …
-
Effect of waste plaster of Paris on physical and mechanical properties of ceramic pottery body
… and identification of its purity. Then, the slip casting technique and standard American Society for Test and Materials (ASTM) was respectively used to fabricate and characterize all of the pottery samples. In the second stage, the ceramic pottery body was fabricated using different …
-
Slurry deposition of high quality layers for 3D printing
… such that they merge together prior to slip casting. Line merging differs from nozzle rastering in two ways: the cycle time between deposited lines is reduced from approximately I second to as little as 0.1 second, and lines are deposited in one direction only. The very short cycle times …
-
Development of high energy density dielectrics for pulse power applications
… studies and was fabricated using slip casting techniques. The BDS of TiO<sub>2</sub> decreased by a factor of 2- 3 with increases in the thickness and electrode area due to the "weakest link" theory. The BDS also decreased with increasing amounts of porosity, but defects with sizes …
-
Influence of low nitrogen gas pressures (< 1.0 MPa) and additives on the nitridation, formation and densification of B and O-SiAlON ceramics produced by reaction bonding and silicothermal reduction
… route since it facilitates forming by pressing, slip casting and extrusion, and gives a greater flexibility in the size and shape of SiAlONs that can be produced. Nitrogen overpressures typically enhanced the nitridation of Si in SiAlONs. For SiAlONs that started to densify at low temperature and …
-
Novel Preparation of Porous Alumina using Ice Particles as Pore-Forming Agents
Porous ceramics have successfully been used in a wide variety of highly advanced applications. Current routes to porous ceramics are limited in the types of porosity they can create and no one process is flexible enough to create any desired structure. This study introduces the use of ice particles …
-
Effect of Calcium Phosphate Ceramic Architectural Features on the Self-Assembly of Microvessels In Vitro
… Sample production methods based on slip casting of a hydroxyapatite-gelatin slurry were explored. The most successful of these involved the use of curable silicone to produce moulds of high-resolution, three dimensional (3D) printed parts with the desired design. Parts were dried and …
-
The Porcelain Groups
My background in clay has emphasized the development of technical considerations in functional ceramics as well as the search for personal images. The past two years have seen an emphasis on the exploration of technical areas chosen to lead to the development of a familiarity with techniques and a …