3D gel-printing—An additive manufacturing method for producing complex shape parts

Ren, Xiangyuan; Shao, Huiping; Lin, Tao; Zheng, Hang

doi:10.1016/j.matdes.2016.03.152

Cited by 123 publications

(42 citation statements)

References 36 publications

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“…13,14 Powder bed fusion faces issues related to the thermal distortion of ceramic powders, which can negatively impact the structural properties. 16,17 Although this is a widespread technology, the postprocessing is a challenging step due to high shrinkage, which result in warping and defects on the produced parts. 16,17 Although this is a widespread technology, the postprocessing is a challenging step due to high shrinkage, which result in warping and defects on the produced parts.…”

Section: Introductionmentioning

confidence: 99%

“…They reported a full silicon-carbon transformation process with flexural strengths close to 130 MPa. 17 Breslin et al 39 conducted experiments on the production of IPC samples using silica templates and reported that the composites presented a phase distribution of 65% alumina and 35% aluminum with a modulus of rupture from flexural testing averaging about 470 MPa. Their results suggested that such technology could represent a nonexpensive approach for the foundry industry.…”

Section: Introductionmentioning

confidence: 99%

“…15 Extrusionbased 3D printing technologies have also been utilized to combine ceramics with thermoplastics. 16,17 Although this is a widespread technology, the postprocessing is a challenging step due to high shrinkage, which result in warping and defects on the produced parts.…”

Section: Introductionmentioning

confidence: 99%

“…Here, the molten metal reacts with the sacrificial oxide to create the ceramic backbone of the interpenetrating composite. 17 Breslin et al 39 conducted experiments on the production of IPC samples using silica templates and reported that the composites presented a phase distribution of 65% alumina and 35% aluminum with a modulus of rupture from flexural testing averaging about 470 MPa.…”

Section: Introductionmentioning

confidence: 99%

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The fracture properties of metal‐ceramic composites manufactured via stereolithography

Mummareddy

Maravola

MacDonald

et al. 2019

Int J Applied Ceramic Tech

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In this work, metal-ceramic composite parts based on aluminum and alumina were manufactured in a two-stage process. First, silica was printed using a vat photopolymerization technique, followed by a curing and sintering stage, which resulted in ceramic precursors. Subsequently, these samples were subjected to a metal infiltration process to form interpenetrating metal-ceramic composites (IPCs). These composites have attracted considerable attention in the aerospace and defense sector due to the ductility associated to the metal phase and the strength offered by the ceramics. A novel application with utility includes composite tooling which requires a low coefficient of thermal expansion (CTE) for high temperatures. The investigated specimens were tested for surface quality and shrinkage, followed by a mechanical characterization. It was recorded that the samples presented a 12%-18% of shrinkage after the sintering process. The mechanical testing showed that the hardness, compression, and flexural strength of the composites were superior to the printed and sintered ceramics. A thermal analysis on the composite showed that its CTE is more than two times lower than the common composite tooling materials. It is expected that the present work can provide the foundations for further studies on these systems in the refractory, automotive, and armor-based fields. K E Y W O R D Sceramic-metal systems, fracture, mechanical properties 414 | MUMMAREDDY Et Al.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The fracture properties of metal‐ceramic composites manufactured via stereolithography

Mummareddy

Maravola

MacDonald

et al. 2019

Int J Applied Ceramic Tech

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“…Moreover, no successive supplement of abrasive particles is available after wear, thus reducing their service life. This implies an urgent need in the development of a new type of dental ceramics diamond tool with orderly arranged abrasive particles …”

Section: Introductionmentioning

confidence: 99%

3D Printing of Diamond Tools for Dental Ceramics Processing

Yang

et al. 2017

Adv Eng Mater

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This paper is focused on preparing diamond tools with orderly arranged abrasive particles for dental ceramics processing via 3D printing. This allows one to overcome such drawbacks of the existing methods of dental ceramics processing as weak bonding strength, short service life, and irregular diamond distribution in diamond tools. Firstly, the CAD model of the dental diamond tool is constructed using 3D cartographic software, with level-scanpath geometry information generated via hierarchcal slicing. Then, using Ni-Cr alloy powder and diamond as raw materials, the dental ceramics processing diamond tool with orderly arranged diamond particles is prepared via a 3D printer. Next, an X-ray diffractometer, energy dispersive spectrometer, and scanning electron microscope are used to analyze the microstructure of the Ni-Cr alloy and diamond particle interfaces, resulting in the identification of their bonding mechanism. Finally, the diamond grinding wheel produced by 3D printing is subjected to dental zirconia ceramics grinding performance tests. The results obtained confirm that diamond particles experience normal wear, while no abrasive falling off occurs on the 3D printed diamond tool surface.

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Ceramic Robocasting: Recent Achievements, Potential, and Future Developments

2018

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Additive manufacturing (AM) of ceramic materials has attracted tremendous attention in recent years, due to its potential to fabricate suitable advanced ceramic structures for various engineering applications. Robocasting, a subset of ceramic AM, is an ideal technique for constructing fine and dense ceramic structures with geometrically complex morphology. With the freedom and convenience to deposit various materials within any 3D spatial position, ceramic robocasting opens up unlimited opportunities, which are otherwise hardly attainable from other AM techniques. Here, a summary of the recent progress on the fabrication of single and multi‐ceramic structures by robocasting is provided, as well as the prospects of achieving shapeable ceramic structures. The current challenges in ceramic robocasting and an outlook on its development, especially toward the fabrication of self‐shaping ceramic structures, are also discussed.

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3D gel-printing—An additive manufacturing method for producing complex shape parts

Cited by 123 publications

References 36 publications

The fracture properties of metal‐ceramic composites manufactured via stereolithography

The fracture properties of metal‐ceramic composites manufactured via stereolithography

3D Printing of Diamond Tools for Dental Ceramics Processing

Ceramic Robocasting: Recent Achievements, Potential, and Future Developments

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