Our website is currently undergoing maintenance. This page provides
access to the published issues in the meantime. Article submissions are unaffected and
can be made through the
Editorial Manager.
Journal of Ceramic Science and Technology 2/2015
Vol. 6, No. 2 · May 2015
Additive Manufacturing of Bioactive Glasses and Silicate Bioceramics
R. Gmeiner, U. Deisinger, J. Schönherr, B. Lechner, R. Detsch, A. R. Boccaccini, J. Stampfl
Pages 75-86 · DOI: 10.4416/JCST2015-00001
This paper reviews the application of a broad range of additive manufacturing technologies (AMTs), including Stereolithographic Ceramic Manufacturing (SLCM/LCM), 3D-Printing, indirect and direct Selective Laser Sintering/Melting (SLS/SLM), Dispense Plotting and Inkjet Plotting on bioactive glasses (BGs) and silicate bioceramics to fabricate a variety of dense and porous structures for biomedical applications (e.g. bone replacement materials). Topical studies in the literature are complemented by recent data of the authors' own work, highlighting the state of the art of additive bioceramic prod …
Fabrication of MAX-Phase-Based Ceramics by Three-Dimensional Printing
Y. Ma, X. Yin, X. Fan, N. Travitzky, P. Greil
Pages 87-94 · DOI: 10.4416/JCST2015-00006
Three-dimensional printing (3DP) is a flexible and cost-effective method for direct digital manufacturing that provides capabilities for creating a wide range of part geometries in a broad variety of materials. Recently, a combined process of 3DP and reactive melt infiltration (RMI) has been applied to fabricate MAX-phase-based ceramics, exhibiting great potential in the fabrication of bulk compounds with complicated shape. This paper briefly summarizes the fabrication of Ti3AlC2- and Ti3SiC2-based ceramics with the combined process. 3DP facilitates the prior design of a porous preform with sp …
Additive Manufacturing to Produce Complex 3D Ceramic Parts
T. Chartier, C. Dupas, M. Lasgorceix, J. Brie, , N. Delhote, Chr. Chaput
Pages 95-104 · DOI: 10.4416/JCST2014-00040
Attempts to improve the performance of ceramic parts have recently led to advances in their design and in the processes used to tailor these parts. Thus, Additive Manufacturing (AM) technologies, initially developed in the polymers and metals industries, have become of increasing interest for shaping ceramic parts. Among AM techniques, photopolymerization (referred to as stereolithography (SLA) and micro-stereolithography) makes it possible to reach high accuracy that matches the design requirements for new applications of ceramics in a wide range of fields. The development by means of (micro) …
Porous Geopolymer Components through Inverse Replica of 3D Printed Sacrificial Templates
G. Franchin, P. Colombo, P. Colombo
Pages 105-112 · DOI: 10.4416/JCST2014-00057
Geopolymeric components with high controlled porosity were designed and produced by means of CAD/CAM and FDM (Fused Deposition Modeling) techniques. PLA sacrificial structures with different patterns were 3D printed with high accuracy and a geopolymeric slurry was used to produce close inverse replicas by means of impregnation in vacuum conditions and subsequent geopolymerization reaction and template removal in a combined chemical and thermal treatment. The FDM-manufactured sacrificial structures replicated the computationally designed porosity to be obtained in the final geopolymer component …
Slurry-Based Powder Beds for the Selective Laser Sintering of Silicate Ceramics
T. Mühler, C. Gomes, M.E. Ascheri, D. Nicolaides, J.G. Heinrich, J. Günster, J. Günster
Pages 113-118 · DOI: 10.4416/JCST2015-00007
Selective laser sintering of ceramic powders is a promising technique for the additive manufacturing of complex- and delicate-shaped ceramic parts. Most techniques have in common that the powder to be sintered is spread to a thin layer as a dry powder by means of a roller or shaker system. These layers have a relatively low density. On the other hand, appreciable densities can be reached with the use of ceramic slurries as the starting material. Therefore, the layer-wise slurry deposition (LSD) process has been developed. Layer stacks, i.e. powder beds, built up by employing the LSD technology …
Functionally Graded Ceramic Structures by Direct Thermal Inkjet Printing
P. Gingter, A.M. Wätjen, M. Kramer, R. Telle
Pages 119-124 · DOI: 10.4416/JCST2014-00033
Aqueous inks based on fine alumina and zirconia powder (3Y-TZP) with a solids content of 21 vol% were developed and adapted to a direct inkjet printing (DIP) system by optimizing the solids content, surface tension and viscosity of the inks. Using different thermal printheads for alumina and 3Y-TZP ink, dispersion ceramics and functionally graded materials (FGM) were generated via precise dropwise combination of materials on a substrate. Green and sintered specimens feature high density and accuracy with regard to drop positioning, which underlines the high potential of DIP for the fabrication …
Additive Manufacturing of Metal-Ceramic-Composites by Thermoplastic 3D-Printing (3DTP)
U. Scheithauer, T. Slawik, E. Schwarzer , H.-J. Richter, T. Moritz, A. Michaelis
Pages 125-132 · DOI: 10.4416/JCST2014-00045
In our new approach – thermoplastic 3D printing (3DTP) – high-filled ceramic and metal feedstocks based on thermoplastic binder systems were used to produce metal-ceramic-composites by means of additive manufacturing (AM). The developed AM method has some outstanding advantages compared to other methods. First, the portfolio of applicable materials is not limited. Second, it works almost independently of the properties of the dispersed material. The application of thermoplastic 3D printing with two components is in principle demonstrated with stainless-steel-zirconia composites. Different feed …
Preparation of SiC Ceramics by Laminated Object Manufacturing and Pressureless Sintering
H. Zhong, H. Zhong, X. Yao, Y. Zhu, J. Zhang, D. Jiang, J. Chen, Z. Chen, X. Liu, Z. Huang
Pages 133-140 · DOI: 10.4416/JCST2014-00049
In this paper, laminated object manufacturing (LOM) and pressureless sintering were applied to obtain complex-shaped SiC ceramic articles. The SiC green tapes measuring 0.15 mm in thickness used for LOM were prepared by means of organic-solvent-based tape casting. The influences of the binder content, plasticizer/binder ratio and solid loading on the tape properties were investigated and optimized. The binder removal and pressureless sintering processes were studied and optimized to obtain high-quality SiC samples. The relationships between the mechanical properties of the sintered body and th …
We demonstrated the possibility to fabricate porous ceramics made of alumina and silicon carbide by means of 3D printing. For this investigation, two ceramic powder blends, VX-AlOx-Typ A and VX-SiC-Typ A, were used. Several specimens were printed, sintered and characterized. The specimens possess high porosity of up to 69 % for alumina and 55 % for silicon carbide. The compressive strength amounted to 6.8 MPa for the VX-AlOx-Typ A and to 19.65 MPa for the VX-SiC-Typ A specimens. The flexural strength amounts to 4.17 MPa and 9.74 MPa for the alumina and silicon carbide parts respectively. The t …
