Additive manufacturing of non plastic porcelain material by direct writing and freeze casting.

De Montfort University Open Research Archive

Show simple item record Peña del Olmo, Magali Noemi 2012-02-15T14:58:20Z 2012-02-15T14:58:20Z 2011
dc.description.abstract Two direct consolidation methods usually used for advanced ceramics have been combined in this project in order to develop a novel fabrication route for traditional ceramics. Specifically the method used is based on the Additive Manufacturing extrusion process using direct writing of high solid loading ceramic pastes and then freeze-casting to solidify the deposited material. This novel fabrication method, for which a patent has been granted, has been christened “Direct Writing Freeze-Casting” (DWFC). Although the DWFC process is the subject of investigation by other researchers for a range of different applications, including the production of medical implants with alumina, the research presented in this thesis focuses on its use in the manufacture of white wares, giftware, and applied arts and crafts in general. This new system will provide designers, potters, artists, craft makers and manufacturers with a flexible and automated way of manufacturing porcelain objects. One of the major challenges to be overcome to exploit the DWFC process is the development of suitable slurry material formulations. Initial trials demonstrated that it is not possible to use conventional clay based porcelain materials with a platelet shaped microstructure which inhibits freeze casting. In this thesis the development and characterisation of non plastic porcelain slurry, based on substitution of kaolin (clay) with a calcined clay material (molochite), which can be processed using this new method is presented. The new non plastic porcelain formulation, which has a high solid load of 75.47% wt., has been subjected to detailed analysis to assess its suitability at each stage of the process; extrusion, freeze-casting (solidification) and firing. en
dc.description.sponsorship National Consul of Sciences and Technology Mexico, CONACYT en
dc.language.iso en en
dc.publisher De Montfort University en
dc.subject freeze casting en
dc.subject direct writing en
dc.subject additive manufacturing. en
dc.title Additive manufacturing of non plastic porcelain material by direct writing and freeze casting. en
dc.type Thesis or dissertation en
dc.publisher.department Faculty of Technology en
dc.publisher.department School of Engineering en
dc.publisher.department Rapid Product Development en
dc.publisher.department Additive Manufacturing Technology Group en
dc.type.qualificationlevel Doctoral en
dc.type.qualificationname PhD en

Files in this item

This item appears in the following Collection(s)

Show simple item record