Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Additive manufacturing of complexly shaped SiC with high density via extrusion-based technique – Effects of slurry thixotropic behavior and 3D printing parameters

Journal Article · · Ceramics International
 [1];  [2];  [2];  [3];  [3];  [2];  [2]
  1. Anhui University of Technology, Ma'anshan (China); Missouri University of Science and Technology, Rolla, MO (United States)
  2. Missouri University of Science and Technology, Rolla, MO (United States)
  3. Nanjing University of Aeronautics and Astronautics, Jiangsu (China)

Here, additive manufacturing of dense SiC parts was achieved via an extrusion-based process followed by electrical-field assisted pressure-less sintering. The aim of this research was to study the effect of the rheological behavior of SiC slurry on the printing process and quality, as well as the influence of 3D printing parameters on the dimensions of the extruded filament, which are directly related to the printing precision and quality. Different solid contents and dispersant- Darvan 821A concentrations were studied to optimize the viscosity, thixotropy and sedimentation rate of the slurry. The optimal slurry was composed of 77.5 wt% SiC, Y2O3 and Al2O3 powders, 0.25 wt% dispersant and 0.01 wt% defoamer. The printing parameters studied included extrusion pressure, nozzle size, layer height and printing speed; the one that had the most prominent effect on filament width and height was indicated as layer height. The nozzle inner diameter of 1.04 mm, speed of 350 mm/min, layer height of 0.7 mm and extrusion air pressure of 0.31 MPa were the optimal printing parameters. Furthermore, the relationship between the printing parameters and the filament dimensions was successfully predicted by using machine learning and grey system theory. Finally, the relative density of the printed SiC parts sintered at 1900 oC reached 94.7±1.5%.

Research Organization:
Missouri Univ. of Science and Technology, Rolla, MO (United States)
Sponsoring Organization:
USDOE Office of Nuclear Energy (NE); U.S. Nuclear Regulatory Commission Faculty Development Program
Grant/Contract Number:
AC07-05ID14517; 31310018M0044
OSTI ID:
2424220
Alternate ID(s):
OSTI ID: 1960650
Journal Information:
Ceramics International, Vol. 48, Issue 19; ISSN 0272-8842
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (33)

Effect of particle size of fly ash on the properties of lightweight insulation materials journal October 2016
Layered extrusion forming of complex ceramic structures using starch as removable support journal December 2019
Rheological study and printability investigation of titania inks for Direct Ink Writing process journal May 2021
Recent Advances in Mechanism Research and Methods for Electric-Field-Assisted Sintering of Ceramics journal July 2018
High temperature sintering of SiC with oxide additives: IV. Powder beds and the influence of vaporization on the behaviour of SiC compacts journal January 2003
Densification behavior and mechanical properties of pressureless-sintered silicon carbide ceramics with alumina and yttria additions journal May 1999
Incorporating Steric Hindrance into the Additive Design Enables a Robust Formulation of Alumina Ink for Extrusion-based 3D Printing journal October 2019
A review on powder-based additive manufacturing for tissue engineering: selective laser sintering and inkjet 3D printing journal June 2015
Rheological Characterization of Alumina Ceramic Suspensions in Presence of a Dispersant and a Binder journal August 2012
Preparation and properties of AlN ceramic suspension for non-aqueous gel casting journal May 2016
An investigation of machine learning based prediction systems journal July 2000
A novel design of Al2O3-ZrO2 reticulated porous ceramics with hierarchical pore structures and excellent properties journal May 2019
Physical Aging and Thixotropy in Sludge Rheology journal February 2008
Progress in SiC-Based Ceramic Composites for Fusion Applications journal July 2003
Grey system theory-based models in time series prediction journal March 2010
Rheology and thixotropic properties of slurry fuel prepared using municipal wastewater sludge and coal journal July 2012
The critical issues of SiC materials for future nuclear systems journal January 2018
Theory of mechanochemical systems journal May 1954
Effect of residual compressive stress on thermal shock resistance and microstructure of Al2O3–ZrO2 reticulated porous ceramics journal September 2019
Preparation of SiC/SiC Composites by Hot Pressing, Using Tyranno-SA Fiber as Reinforcement journal January 2003
Preparation of Al2O3-ZrO2 scaffolds with controllable multi-level pores via digital light processing journal December 2020
Additive Manufacturing of Dense Ceramic Parts via Direct Ink Writing of Aqueous Alumina Suspensions journal June 2016
The impact of alumina bubble particle size on the microstructure and physical properties of mullite castables journal February 2019
Single crystalline 3C-SiC whiskers used for electrochemical detection of nitrite under neutral condition journal February 2016
Improving the rheological and stability characteristics of highly concentrated aqueous yttria stabilized zirconia slurries journal December 2020
SiC Foams Produced by Gel Casting: Synthesis and Characterization journal May 2004
Piezoelectric nanogenerators with high performance against harsh conditions based on tunable N doped 4H-SiC nanowire arrays journal May 2021
Ultra-Stable and Durable Piezoelectric Nanogenerator with All-Weather Service Capability Based on N Doped 4H-SiC Nanohole Arrays journal December 2021
Effect of Weight Loss on Liquid-Phase-Sintered Silicon Carbide journal January 2005
Colloidal Inks for Directed Assembly of 3-D Periodic Structures journal July 2002
Synthesis and thermal shock evaluation of porous SiC ceramic foams for solar thermal applications journal September 2018
The preparation of SiC-based ceramics by one novel strategy combined 3D printing technology and liquid silicon infiltration process journal June 2019
Thixotropy journal March 2009

Similar Records

Additive manufacturing of continuous carbon fiber-reinforced SiC ceramic composite with multiple fiber bundles by an extrusion-based technique
Journal Article · Mon Nov 14 00:00:00 EST 2022 · Ceramics International · OSTI ID:2424221

3D Gel-Printing of TiC-Reinforced 316L Stainless Steel: Influence of the Printing Parameters
Journal Article · Mon Oct 15 00:00:00 EDT 2018 · Journal of Materials Engineering and Performance · OSTI ID:22863274

Direct ink writing of boron carbide monoliths
Journal Article · Wed Dec 01 00:00:00 EST 2021 · Journal of the European Ceramic Society · OSTI ID:1959554