A novel aqueous ceramic suspension for ceramic stereolithography

Purpose – The purpose of this paper is to present a new ceramic suspension to fabricate complex ceramic parts by stereolithography (SL).Design/methodology/approach – The process consists of preparation of aqueous ceramic suspensions, building ceramic parts, drying, subsequent binder removal, and sintering. Highly concentrated aqueous ceramic suspensions with a suitable viscosity are prepared, then a wet green ceramic part fabricated in a SL machine according to a 3D model is dried in polyethylene glycol. After binder removal sintering in a high temperature‐sintering furnace, a complex ceramic part is obtained.Findings – The dispersant, volume fraction of ceramic powder and powder diameter could influence the viscosity of suspension. The cured depth is inversely proportional to the scanning speed of laser spot when the laser power keeps a constant and proportional to the concentration of monomer. The penetration depth and critical exposure are 0.27 mm and 231.2 mJ/cm2 from the experimental result of the wi...

[1]  P. Marchal,et al.  Rheological properties of PZT suspensions for stereolithography , 2002 .

[2]  S. Pilgrim,et al.  Preparation and Characterization of Barium Titanate Suspensions for Stereolithography , 2004 .

[3]  John W. Halloran,et al.  Influence of Residual Monomer on Cracking in Ceramics Fabricated by Stereolithography , 2011 .

[4]  Antonio Greco,et al.  Stereolitography of ceramic suspensions , 2001 .

[5]  Rémy Glardon,et al.  An innovative method to build support structures with a pulsed laser in the selective laser melting process , 2012 .

[6]  O. Dufaud,et al.  Oxygen diffusion in ceramic suspensions for stereolithography , 2003 .

[7]  J. Halloran,et al.  Freeform fabrication of ceramics , 1999 .

[8]  C. E. Corcione,et al.  Laser stereolithography of ZrO2 toughened Al2O3 , 2004 .

[9]  John W. Halloran,et al.  SCATTERING OF ULTRAVIOLET RADIATION IN TURBID SUSPENSIONS , 1997 .

[10]  Carola Esposito Corcione,et al.  Free form fabrication of silica moulds for aluminium casting by stereolithography , 2006 .

[11]  Thierry Chartier,et al.  Ceramic suspensions suitable for stereolithography , 1998 .

[12]  T. Chartier,et al.  Stereolithography for the fabrication of ceramic three‐ dimensional parts , 1998 .

[13]  O. Dufaud,et al.  Stereolithography of PZT ceramic suspensions , 2002 .

[14]  J. Halloran,et al.  Photopolymerization monitoring of ceramic stereolithography resins by FTIR methods , 2005 .

[15]  John W. Halloran,et al.  Integrally Cored Ceramic Mold Fabricated by Ceramic Stereolithography , 2011 .

[16]  John W. Halloran,et al.  Freeform Fabrication of Ceramics via Stereolithography , 2005 .

[17]  Zhongmin Jin,et al.  Design and fabrication of a novel porous implant with pre-set channels based on ceramic stereolithography for vascular implantation , 2011, Biofabrication.

[18]  J. Halloran,et al.  Suspension polymerization casting of lead zirconate titanate, part I: Acrylamide hydrogel system , 2003 .

[19]  Francesco Montagna,et al.  Silica moulds built by stereolithography , 2005 .

[20]  M. J. Edirisinghe,et al.  Solid freeform fabrication of ceramics , 2003 .

[21]  Thierry Chartier,et al.  Stereolithography of structural complex ceramic parts , 2002 .

[22]  Dichen Li,et al.  The influence of ingredients of silica suspensions and laser exposure on UV curing behavior of aqueous ceramic suspensions in stereolithography , 2011 .

[23]  C. E. Corcione,et al.  Laser stereolithography of ZrO 2 toughened Al 2 O 3 , 2004 .

[24]  J. Halloran,et al.  Photopolymerization of powder suspensions for shaping ceramics , 2011 .

[25]  John W. Halloran,et al.  Stereolithography of ceramics. , 1995 .

[26]  John W. Halloran,et al.  Stereolithography of ceramic suspensions , 1997 .