Technology of 3D Printing of Light Ceramics for Construction Products

2021 ◽  
Vol 316 ◽  
pp. 1038-1043
Author(s):  
V.A. Beregovoi ◽  
A.M. Beregovoi ◽  
I.Yu. Lavrov
Keyword(s):  
3D Printing ◽  
Raw Material ◽  
3D Printer ◽  
Technological Properties ◽  
Kinematic Scheme ◽  
Additive Technology ◽  
Chemical Additives ◽  
Optimal Amount ◽  
Construction Products ◽  
Mineral Mixtures

A 3D-printer for working with plastic mineral mixtures is developed, its kinematic scheme and principle of operation are described. The results of experiments on printing simple forms of plastic clay, using a piston-type extruder, are presented. In relation to an additive technology, a list of technological properties of mineral masses is defined The optimal amount of chemical additives has been established, which provides an increase in the uniformity of the raw material mass for printing products from light ceramics.

Development of 3D Printing Technology with Ceramic Paste and Study of Properties of Printed Corundum Products

2021 ◽  
Vol 1040 ◽  
pp. 178-184
Author(s):  
Andrey S. Dolgin ◽  
Aleksei I. Makogon ◽  
Sergey P. Bogdanov
Keyword(s):  
3D Printing ◽  
Aluminum Oxide ◽  
Reference Sample ◽  
Physical And Mechanical Properties ◽  
Ceramic Technology ◽  
Raw Material ◽  
Energy Costs ◽  
Additive Technology ◽  
X Ray ◽  
Manufacturing Time

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.

scholarly journals Physicochemical and mineralogical properties of clays used in ceramic industry at North East Colombia

DYNA ◽  
2019 ◽  
Vol 86 (209) ◽  
pp. 97-103 ◽  
Author(s):  
Diana Alexandra Torres Sanchez ◽  
Ricardo León Mora Basto ◽  
Amanda Lucía Chaparro García ◽  
Jorge Sánchez Molina
Keyword(s):  
Ceramic Industry ◽  
Absorption Capacity ◽  
Raw Material ◽  
Water Absorption Capacity ◽  
Technological Properties ◽  
Mineralogical Analysis ◽  
North East ◽  
Construction Products ◽  
Firing Shrinkage

AbstractGeneral properties of clays from Ceramica Murano Mine, in the municipality of El Zulia, Norte de Santander, have been investigated.  Five clay samples were collected from different mantles of the mine. All the samples were characterized using chemical and mineralogical analysis, as well as physical properties like particle size, plasticity, drying and firing shrinkage and water absorption capacity. The chemical and mineralogical results indicated that all samples contained different amount of kaolinite and quartz, followed by hematite and anatase. Low amounts of muscovite were found mainly in samples F2 and F5. These clays are suitable for use as a raw material in creating ceramic construction products, especially for the manufacture of roof tiles and bricks according to the Winkler methodology. The variations found in the characterization of the raw material influence the technological properties of the ceramic that can be obtained from the clays under study.

scholarly journals Cost Analysis of Various Factors for Geopolymer 3D Printing of Construction Products in Factories and on Construction Sites

Recycling ◽  
2021 ◽  
Vol 6 (3) ◽  
pp. 60
Author(s):  
Qaisar Munir ◽  
Timo Kärki
Keyword(s):  
3D Printing ◽  
Carbon Dioxide Emissions ◽  
High Performance ◽  
Raw Materials ◽  
Research Work ◽  
Transportation Cost ◽  
Raw Material ◽  
Low Carbon ◽  
Construction Sites ◽  
Construction Products

The utilization of geopolymer 3D printing for construction products in recent years has been exceptionally substantial, owing to their low carbon dioxide emissions, high-performance properties such as durability, and good thermal and mechanical properties. This automated manufacturing process reduces the need for additional formworks, capital investments, and human resources. Geopolymer 3D printing development is emerging because of its advanced use in construction applications. However, high costs of the initial stages of geopolymer production and 3D printing has inhibited the development of this technology in many countries. This research presents a comprehensive economic evaluation of the investment for each principal stage that facilitates a better deployment of the resources. The study investigated all phases of geopolymer production, from the extraction of raw materials to printing. The cost for the four fundamental stages, namely raw material availability and transportation, pretreatments for raw materials, parameter selection and strength requirements, and printing in factories and on construction sites, were analyzed. The results show that 3D printing of a geopolymer on a construction site is economically more advantageous compared to printing in the factory. The study also verified that raw material transportation cost has the least effect on the finished product cost, whereas pretreatments of raw material and mixing parameters significantly influenced the ultimate cost of the product. Finally, research work suggested the need for future tasks to make geopolymer 3D printing a viable construction approach.

scholarly journals Experimental studies on 3D printing of barium titanate ceramics for medical applications

2016 ◽  
Vol 2 (1) ◽  
pp. 95-99 ◽  
Author(s):  
Mark Schult ◽  
Eric Buckow ◽  
Hermann Seitz
Keyword(s):  
Tissue Engineering ◽  
Barium Titanate ◽  
3D Printing ◽  
Piezoelectric Properties ◽  
Experimental Studies ◽  
Raw Material ◽  
Medical Applications ◽  
3D Printer ◽  
3D Printed ◽  
Titanate Ceramics

AbstractThe present work deals with the 3D printing of porous barium titanate ceramics. Barium titanate is a biocompatible material with piezoelectric properties. Due to insufficient flowability of the starting material for 3D printing, the barium titanate raw material has been modified in three different ways. Firstly, barium titanate powder has been calcined. Secondly, flow additives have been added to the powder. And thirdly, flow additives have been added to the calcined powder. Finally, a polymer has been added to the three materials and specimens have been printed from these three material mixtures. The 3D printed parts were then sintered at 1320°C. The sintering leads to shrinkage which differs between 29.51–71.53% for the tested material mixtures. The porosity of the parts is beneficial for cell growth which is relevant for future medical applications. The results reported in this study demonstrate the possibility to fabricate porous piezoelectric barium titanate parts with a 3D printer that can be used for medical applications. 3D printed porous barium titanate ceramics can especially be used as scaffold for bone tissue engineering, where the bone formation can be promoted by electrical stimulation.

scholarly journals PERFORMANCE CHARACTERISTICS OF 3D PRINTING CONSTRUCTION MIXES DEPENDING ON THERMALLYMODIFIED PEAT ADDITIVE

2018 ◽  
pp. 122-134 ◽  
Author(s):  
O. V. Dem'yanenko ◽  
N. O. Kopanitsa ◽  
E. A. Sorokina
Keyword(s):  
3D Printing ◽  
Cement Paste ◽  
Performance Characteristics ◽  
Structure And Properties ◽  
Technological Properties ◽  
Additive Technology ◽  
X Ray ◽  
Hardening Process ◽  
Improved Performance ◽  
Determining Factor

The paper presents the research results on the development of scientifically valid compositions of 3D printing construction mixes with improved performance characteristics. To regulate the physical, mechanical and technological properties of cement-based mixes, thermallymodified peat additive MT-600 is developed. The paper studies the world experience in the construction additive technology field. The experimental results are presented for cement paste and construction mixes with MT-600 additive for 3D printing. It is established that using the proposed fine additive increases the strength of the cement paste at early stages of hardening, which is the determining factor in the formation of building and technical characteristics for 3D printing. The X-ray phase analysis is carried out for the new composition of cement paste modified with MT-600 additive, which allows studying characteristics of the structure and properties of construction mixes during the hardening process.

scholarly journals Construction 3D printer manipulator type

2019 ◽  
Vol 6 (4) ◽  
Author(s):  
Nadezhda Klindukh ◽  
Evgenia Turysheva ◽  
Ivan Amuzin ◽  
Yegor Dremin ◽  
Ekaterina Bules ◽  
...  
Keyword(s):  
3D Printing ◽  
Electric Current ◽  
Dynamic Processes ◽  
Oscillatory Process ◽  
3D Printer ◽  
Cold Forming ◽  
Operating Modes ◽  
Graphic Analysis ◽  
Construction Products ◽  
3D Printers

The results of the study of the dynamics of building a 3D printer manipulator type, the relevance of the application of 3D printing in construction, its development, and methods of use, comparison of technology of building 3D printers with traditional methods of erecting concrete structures, the benefits of the economic component of this technology; the choice of the type of the investigated devices and the question of the research; brief description of the device 3D printer, its components and how it works; illustrations of the product and graphic analysis of his actions; the developed model 3D printer, which allows to analyze dynamic processes of interaction of the moving formwork installation concrete mixture; at 3D printing construction products made of cold forming products with the use of sliding formwork; compacting the mixture is performed by a vibrator unit; the values of the oscillations of the trolley 3D printer; received a graphics oscillatory process of 3D printing and the magnitude of the electric current in starting and operating modes.

scholarly journals The advantages of combining 3D printing with turning process. Case study

2021 ◽  
Vol 343 ◽  
pp. 02010
Author(s):  
Dan Claudiu Negrău ◽  
Gavril Grebenisan ◽  
Ion Cosmin Gherghea ◽  
Daniel Anton
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Lead Time ◽  
Dimensional Accuracy ◽  
3D Printer ◽  
Technological Properties ◽  
Turning Process ◽  
Finishing Process

The paper presents a case study which the additive manufacturing technology is combined with finishing process by cutting operations (turning) for manufacturing a part. The part was manufactured through additive manufacturing, using a 3D printer and the and the finishing process is performed by a lathe, resulting in technological properties and the corresponding dimensional accuracy. The research paper also contains the analysis of the roughness and other properties of the material from which the final part will be made. The manufactured part will be used as a support for the blades of a fan during the assembly process, which emphasizes that a part obtained by additive manufacturing (3D printing) can replace a part obtained by casting or fabrication by total cutting. In conclusion, obtaining the manufactured part by combining the two manufacturing processes, the lead time and the production cost has been significantly reduced, while the quality of the obtained product also increased, obtaining a very good roughness.

Results of studying the dimensional accuracy of the bases of complete removable prostheses made using 3D printing and traditional technologies

2020 ◽  
pp. 34-39
Author(s):  
Vokulova Yu.A. Vokulova ◽  
E.N. Zhulev
Keyword(s):  
3D Printing ◽  
Traditional Method ◽  
Laser Scanning ◽  
Laser Scanner ◽  
Digital Technologies ◽  
Dimensional Accuracy ◽  
3D Printer ◽  
Significance Level ◽  
Average Value ◽  
The Difference

This article presents the results of studying the dimensional accuracy of the bases of complete removable prostheses made using a 3D printer and the traditional method. Bases of complete removable prostheses were made using an intraoral laser scanner iTero Cadent (USA) and a 3D printer Asiga Max UV (Australia). To study the dimensional accuracy of the bases of complete removable prostheses, we used the DentalCAD 2.2 Valletta software. The Nonparametric Wilcoxon W-test was used for statistical analysis of the obtained data. We found that the average value of the difference with the standard for bases made using digital technologies is 0.08744±0.0484 mm. The average value of the difference with the standard for bases made by the traditional method is 0.5654±0.1611 mm. Based on these data, we concluded that the bases of complete removable prostheses made using modern digital technologies (intraoral laser scanning and 3D printer) have a higher dimensional accuracy compared to the bases of complete removable prostheses made using the traditional method with a significance level of p<0.05 (Wilcoxon's W-test=0, p=0.031). Keywords: digital technologies in dentistry, digital impressions, intraoral scanner, 3D printing, ExoCAD, complete removable dentures.

scholarly journals Efficient 3D printing via photooxidation of ketocoumarin based photopolymerization

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xiaoyu Zhao ◽  
Ye Zhao ◽  
Ming-De Li ◽  
Zhong’an Li ◽  
Haiyan Peng ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Visible Light ◽  
Light Exposure ◽  
Three Dimensional ◽  
3D Printer ◽  
Light Penetration ◽  
Viable Solution

AbstractPhotopolymerization-based three-dimensional (3D) printing can enable customized manufacturing that is difficult to achieve through other traditional means. Nevertheless, it remains challenging to achieve efficient 3D printing due to the compromise between print speed and resolution. Herein, we report an efficient 3D printing approach based on the photooxidation of ketocoumarin that functions as the photosensitizer during photopolymerization, which can simultaneously deliver high print speed (5.1 cm h−1) and high print resolution (23 μm) on a common 3D printer. Mechanistically, the initiating radical and deethylated ketocoumarin are both generated upon visible light exposure, with the former giving rise to rapid photopolymerization and high print speed while the latter ensuring high print resolution by confining the light penetration. By comparison, the printed feature is hard to identify when the ketocoumarin encounters photoreduction due to the increased lateral photopolymerization. The proposed approach here provides a viable solution towards efficient additive manufacturing by controlling the photoreaction of photosensitizers during photopolymerization.

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