Ceramic technology of complex shape from ZrO2 by DLP 3D printing

Today 3D printing with ceramics is a promising direction in the development of additive technologies. In this work, we have developed a technology for printing with ceramic pastes based on aluminum oxide and wax, namely: an extruder for printing with ceramic pastes was modeled and manufactured, the composition of the slip was selected and the paste for printing was made. After choosing the print parameters, test samples were printed: a disk and a box. Since 3D printing with ceramics is just one of the stages of manufacturing ceramic products, then we selected the parameters for drying and sintering the raw material. Drying of products is necessary to burn off an excess amount of a binder (paraffin), and due to sintering; the raw material acquires final strength and mechanical characteristics. After sintering, the sintering parameters and physical and mechanical properties of the products were measured. The microstructure of the printed products was studied using scanning electron microscopy. The phase change during sintering was studied by X-ray analysis. All obtained properties were compared with a reference sample (corundum tile made of aluminum oxide of the same grade, but using traditional ceramic technology, including pressing, drying and sintering of the product). In terms of all properties, the printed ceramics are not significantly inferior to the reference sample; however, in general, the additive technology has more advantages, such as a wide variety of shapes, shorter manufacturing time for parts, and lower energy costs.

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3D printing of composite tissue with complex shape applied to ear regeneration

Biofabrication ◽

10.1088/1758-5082/6/2/024103 ◽

2014 ◽

Vol 6 (2) ◽

pp. 024103 ◽

Cited By ~ 206

Author(s):

Jung-Seob Lee ◽

Jung Min Hong ◽

Jin Woo Jung ◽

Jin-Hyung Shim ◽

Jeong-Hoon Oh ◽

...

Keyword(s):

3D Printing ◽

Complex Shape ◽

Composite Tissue

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POROSITY OF COMPOSITE STRUCTURES BASED ON 3D-PRINTED FRAMES IMPREGNATED WITH EPOXY RESIN

Tekhnicheskiy servis mashin ◽

10.22314/2618-8287-2021-59-1-131-139 ◽

2021 ◽

Vol 1 (142) ◽

pp. 131-139

Author(s):

Yuliya A. Lopatina ◽

◽

Vyacheslav A. Denisov

Keyword(s):

3D Printing ◽

Epoxy Resin ◽

Composite Structures ◽

Epoxy Resins ◽

Complex Shape ◽

Complex Geometry ◽

Research Purpose ◽

Second Stage ◽

3D Printed ◽

The Cost

In the designs of modern machines, more and more polymer parts are used, at the same time, there is a problem of their quick replacement in case of failure. Reducing the cost and repair time can be achieved by using 3D printing by FDM method, but such parts do not always demonstrate the necessary strength. To improve their mechanical properties, a method of their impregnation after printing in epoxy resins was previously proposed. (Research purpose) The research purpose is in studying the dependence of the porosity of composite structures based on 3D-printed frames impregnated with resin on the parameters of their manufacture. (Materials and methods) Authors used samples for the first stage of the work, which are 3D-printed cylinders with different wall thicknesses and internal geometries, impregnated with ED-20 epoxy resin. The samples were cut in several sections and the number of pores in these sections was calculated. The second stage of the experiment was to evaluate the porosity of a part of complex geometry. (Results and discussion) With an increase in the percentage of filling and thickening of the wall in 3D printing, there is a tendency to reduce the number of pores. With a less dense filling of the frame and a thinner wall, the resin is worse retained in the product and partially flows out after impregnation. The best filling of a part of a complex shape was observed when it was cured in the position of the massive part up. (Conclusions) For the production of high- quality composite parts based on 3D-printed frames impregnated with epoxy resin, it is recommended to choose the largest possible percentage of filling during 3D printing and strive to position the part during the curing process after impregnation with the massive part up.

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Polymer 3D-Printing for Fabrication of Ceramic Parts with Complex Shape

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.899.45 ◽

2021 ◽

Vol 899 ◽

pp. 45-49

Author(s):

Sergey V. Balabanov ◽

Sergei N. Perevislov ◽

Maxim М. Sychov

Keyword(s):

Silicon Carbide ◽

3D Printing ◽

Minimal Surface ◽

Complex Shape ◽

Monolithic Material ◽

Primitive Type ◽

Periodic Minimal Surface ◽

Carbide Composite

In this work, using polymer 3D printing, we obtained ceramic parts of complex shape with the topology of a triple periodic minimal surface (TPMS), of the “Schwarz primitive” type. The technology of manufacturing ceramic products from a diamond-silicon carbide composite ("Ideal") with the geometry of TPMS by pressing is described. The properties of 3D ceramics are similar to those of a monolithic material.

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3D-printing of metallic volumetric parts of complex shape based on welding plasma-arc technologies (Review)

The Paton Welding Journal ◽

10.15407/tpwj2016.06.20 ◽

2016 ◽

Vol 2016 (6) ◽

pp. 117-123 ◽

Cited By ~ 4

Author(s):

V.N. Korzhik ◽

◽

V.Yu. Khaskin ◽

A.A. Grinyuk ◽

V.I. Tkachuk ◽

...

Keyword(s):

3D Printing ◽

Complex Shape ◽

Plasma Arc

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Direct Ink Writing Technology (3D Printing) of Graphene-Based Ceramic Nanocomposites: A Review

Nanomaterials ◽

10.3390/nano10071300 ◽

2020 ◽

Vol 10 (7) ◽

pp. 1300 ◽

Cited By ~ 1

Author(s):

Nestor Washington Solís Pinargote ◽

Anton Smirnov ◽

Nikita Peretyagin ◽

Anton Seleznev ◽

Pavel Peretyagin

Keyword(s):

3D Printing ◽

Complex Shape ◽

State Of The Art ◽

Direct Ink Writing ◽

Wide Range ◽

Technical Factors ◽

Writing Technology ◽

Am Processes ◽

Ceramic Nanocomposites

In the present work, the state of the art of the most common additive manufacturing (AM) technologies used for the manufacturing of complex shape structures of graphene-based ceramic nanocomposites, ceramic and graphene-based parts is explained. A brief overview of the AM processes for ceramic, which are grouped by the type of feedstock used in each technology, is presented. The main technical factors that affect the quality of the final product were reviewed. The AM processes used for 3D printing of graphene-based materials are described in more detail; moreover, some studies in a wide range of applications related to these AM techniques are cited. Furthermore, different feedstock formulations and their corresponding rheological behavior were explained. Additionally, the most important works about the fabrication of composites using graphene-based ceramic pastes by Direct Ink Writing (DIW) are disclosed in detail and illustrated with representative examples. Various examples of the most relevant approaches for the manufacturing of graphene-based ceramic nanocomposites by DIW are provided.

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Injection Behavior of some Biocomposite Feedstocks

Advanced Engineering Forum ◽

10.4028/www.scientific.net/aef.34.81 ◽

2019 ◽

Vol 34 ◽

pp. 81-87

Author(s):

Gabriela Sima ◽

Benjamin Daiguebonne ◽

Leonard Marius Ciurezu-Gherghe ◽

Ionela Gabriela Bucşe ◽

Martin Schwarz ◽

...

Keyword(s):

3D Printing ◽

Injection Moulding ◽

Complex Shape ◽

Injection Pressure ◽

Cost Effective ◽

Production Scale ◽

Foaming Agent ◽

Recent Developments ◽

Powder Particles ◽

Cost Effective Alternative

Recent developments in the field of tissue engineering recommend the 3D printing to obtain the complex shape of the final alloplastic grafts (for soft or hard tissues). The medium pressure injection moulding (MEDPIM) technology could be a cost-effective alternative to 3D printing. This paper presents the first studies for the MEDPIM applicability in the case of some alloplastic bone grafts manufacturing. Two biocomposite feedstocks have been researched in order to obtain the injected parts (herein after named green parts). The Ti6Al4V respectively TiH2, both as powder particles, were mixed with hydroxyapatite (HAP) powders in the W 50 EHT measuring mixer. Both powder mixtures contain NaCl as foaming agent as well as some wax-based binders. The MEDPIM process is developed in the laboratory-scale device, designed and manufactured in the frame of the research project BONY. This device replicates, at lab-scale, the MEDPIM process developed by the Goceram MEDPIMOULD equipment, able to work at mass-production scale. The injection moulding tests were performed at the temperature range of 50…110°C, respectively at 30-45 MPa as injection pressure. The green parts quality was evaluated by means of the physical characteristics (dimensional and density measurements) as well as macroscopic evaluation using the stereomicroscope NIKON SMZ 745T. The influence of the biocomposite feedstock type as well as the injection temperature on the green pats quality is studied in this research.

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POROSITY OF COMPOSITE STRUCTURES BASED ON 3D-PRINTED FRAMES IMPREGNATED WITH EPOXY RESIN

Tekhnicheskiy servis mashin ◽

10.22314/2618-8287-2020-59-1-131-139 ◽

2021 ◽

Vol 1 (142) ◽

pp. 131-139

Author(s):

Yuliya Lopatina ◽

◽

Vyacheslav Denisov

Keyword(s):

3D Printing ◽

Epoxy Resin ◽

Composite Structures ◽

Epoxy Resins ◽

Complex Shape ◽

Complex Geometry ◽

Research Purpose ◽

Second Stage ◽

3D Printed ◽

The Cost

In the designs of modern machines, more and more polymer parts are used, at the same time, there is a problem of their quick replacement in case of failure. Reducing the cost and repair time can be achieved by using 3D printing by FDM method, but such parts do not always demonstrate the necessary strength. To improve their mechanical properties, a method of their impregnation after printing in epoxy resins was previously proposed. (Research purpose) The research purpose is in studying the dependence of the porosity of composite structures based on 3D-printed frames impregnated with resin on the parameters of their manufacture. (Materials and methods) Authors used samples for the first stage of the work, which are 3D-printed cylinders with different wall thicknesses and internal geometries, impregnated with ED-20 epoxy resin. The samples were cut in several sections and the number of pores in these sections was calculated. The second stage of the experiment was to evaluate the porosity of a part of complex geometry. (Results and discussion) With an increase in the percentage of filling and thickening of the wall in 3D printing, there is a tendency to reduce the number of pores. With a less dense filling of the frame and a thinner wall, the resin is worse retained in the product and partially flows out after impregnation. The best filling of a part of a complex shape was observed when it was cured in the position of the massive part up. (Conclusions) For the production of high-quality composite parts based on 3D-printed frames impregnated with epoxy resin, it is recommended to choose the largest possible percentage of filling during 3D printing and strive to position the part during the curing process after impregnation with the massive part up.

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Dense ceramics with complex shape fabricated by 3D printing: A review

Journal of Advanced Ceramics ◽

10.1007/s40145-020-0444-z ◽

2021 ◽

Author(s):

Zhe Chen ◽

Xiaohong Sun ◽

Yunpeng Shang ◽

Kunzhou Xiong ◽

Zhongkai Xu ◽

...

Keyword(s):

3D Printing ◽

Complex Shape ◽

Raw Materials ◽

Three Dimensional ◽

Critical Parameters ◽

Printing Process ◽

Practical Applications ◽

3D Printing Technology ◽

3D Printed ◽

Ceramic Density

AbstractThree-dimensional (3D) printing technology is becoming a promising method for fabricating highly complex ceramics owing to the arbitrary design and the infinite combination of materials. Insufficient density is one of the main problems with 3D printed ceramics, but concentrated descriptions of making dense ceramics are scarce. This review specifically introduces the principles of the four 3D printing technologies and focuses on the parameters of each technology that affect the densification of 3D printed ceramics, such as the performance of raw materials and the interaction between energy and materials. The technical challenges and suggestions about how to achieve higher ceramic density are presented subsequently. The goal of the presented work is to comprehend the roles of critical parameters in the subsequent 3D printing process to prepare dense ceramics that can meet the practical applications.

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Direct Ink Writing Technology (3D Printing) of Graphene-Based Ceramic Nanocomposites: A Review

10.20944/preprints202004.0409.v1 ◽

2020 ◽

Author(s):

Nestor Washington Solís Pinargote ◽

Anton Smirnov ◽

Nikita Peretyagin ◽

Anton Seleznev ◽

Pavel Peretyagin

Keyword(s):

3D Printing ◽

Complex Shape ◽

Rheological Behaviour ◽

Direct Ink Writing ◽

Wide Range ◽

Technical Factors ◽

Writing Technology ◽

Am Processes ◽

Ceramic Nanocomposites

In the present work, the state of the art of the most common additive manufacturing (AM) technologies used for the manufacturing of complex shape structures of graphene-based ceramic nanocomposites, ceramic and graphene-based parts is explained. A brief overview of the AM processes for ceramic, which are grouped by the type of feedstock used in each technology, is presented. The main technical factors that affect the quality of the final product were reviewed. The AM processes used for 3D printing of graphene-based materials are described in more detail; moreover, some studies in a wide range of applications related to these AM techniques are cited. Furthermore, different feedstock formulations and their corresponding rheological behaviour were explained. Additionally, the most important works about the fabrication of composites using graphene-based ceramic pastes by Direct Ink Writing (DIW) are disclosed in detail and illustrated with representative examples. Various examples of the most relevant approaches for the manufacturing of graphene-based ceramic nanocomposites by DIW are provided.

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