Log in

Relevant bibliographies by topics / Artificial Corundum

Academic literature on the topic 'Artificial Corundum'

Author: Grafiati

Published: 27 July 2024

Last updated: 28 July 2024

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Contents

Journal articles
Books
Book chapters
Conference papers

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Artificial Corundum.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Artificial Corundum"

1

Pernicová, Radka, and Tomas Kolomaznik. "Recycled Nanoparticles of Artificial Corundum as Fine-Grained Addition in Concrete Mixture." Materials Science Forum 947 (March 2019): 217–21. http://dx.doi.org/10.4028/www.scientific.net/msf.947.217.

Full text

Abstract:

This document deals with study of nanoand micro particles of artificial corundum in cement mixtures. This inert material with high hardness is usually used as fine-grained additions of concrete mixture. The most important characteristic of corundum is very high hardness (number 9 on Mohr scale). That is the reason, why is mostly added to the cement mixture primary intended for high load flooring. In this paper were studied several type of recycled corundum classified due to its origin. Because it is a recycled material, it was necessary to first examined basic physical properties such as chemical composition or granulometry. We have applied this fine grain material to cement mixes and compared their mechanical properties. For comparison measurement were used a mixture without this admixture and mixture with a corundum with similar granulometry but non-recycled origin.

APA, Harvard, Vancouver, ISO, and other styles

2

Valášek, P., J. Kejval, and M. Müller. "Epoxy resin filled with primary and secondary raw material – useable in agriculture." Research in Agricultural Engineering 60, No. 4 (November 27, 2014): 165–71. http://dx.doi.org/10.17221/23/2013-rae.

Full text

Abstract:

Hard inorganic particles in the interaction with polymeric materials increase wear resistance. Also reactoplastics are suitable for filling with micro- and nano-particles for a purpose of some mechanical properties optimization. The paper compares chosen mechanical properties – hardness, wear resistance and tensile characteristics of epoxy resin filled with artificial corundum with various middle particles sizes and their ratio combination. Mentioned systems can be used in a sphere of the agricultural production at renovation of machine parts, they can serve for creating resistant layers on machines, floors and grillages at the same time. The aim of the carried out experiment is to compare the properties of reactoplastics filled with a primary and secondary raw material and to define an optimum ratio of the filler particle size relating to a given mechanical quality. The artificial corundum was chosen as the primary material, the waste corundum from the process of material mechanical treatment was chosen as the secondary one.    

APA, Harvard, Vancouver, ISO, and other styles

3

Doroganov, V. A., E. A. Doroganov, N. A. Peretokina, V. I. Onishchuk, Yu N. Trepalina, and O. V. Gavshina. "Corundum and Zirconia Composites Based on Artificial Ceramic Binders." Refractories and Industrial Ceramics 57, no. 1 (May 2016): 92–97. http://dx.doi.org/10.1007/s11148-016-9934-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Mottana, Annibale, Takatoshi Murata, Augusto Marcelli, Giancarlo Della Ventura, Giannantonio Cibin, Ziyu Wu, and Richard Tessadri. "Characterization of Local Chemistry and Disorder in Synthetic and Natural α-Al2O3Materials by X-ray Absorption Near-Edge Structure Spectroscopy." Journal of Applied Crystallography 31, no. 6 (December 1, 1998): 890–98. http://dx.doi.org/10.1107/s0021889898007778.

Full text

Abstract:

X-ray absorption fine spectra at the AlKedge were measured experimentally and calculated theoreticallyviathe multiple-scattering formalism for chemically pure and physically perfect synthetic α-Al2O3(α-alumina), natural ruby/sapphire (corundum) and a series of artificial corundums produced for technical purposes and used as geochemical standards. The AlK-edge spectra differ, despite the identical coordination (short-range arrangement) assumed by O around Al, and vary slightly in relation to the slightly different chemistries of the materials (substitutional defects) as well as on account of the location taken by foreign atoms in the structural lattices (positional defects). A quantitative treatment of the observed changes is made in terms of short-range distortion of the coordination polyhedron and of medium- to long-range modifications in the overall structure, both induced by substitutions. In some technical corundums, the impurities of admixed β-alumina, where Al is both in fourfold and sixfold coordination, produce another small but detectable effect on AlKedges. Therefore, XAFS spectroscopy proves its potential for both measuring a light element such as Al and detecting minor coordination changes and dilute substitutions (∼1–3 wt% as oxide) of the absorber by other atoms, at least under the favourable conditions occurring in this system.

APA, Harvard, Vancouver, ISO, and other styles

5

Mikhailov, Gennady G., A. G. Morozova, and Vitalii G. Bamburov. "Investigation of Physical and Chemical Processes of Formation of Composite Materials with Specified Structural Phase Characteristics." Materials Science Forum 946 (February 2019): 192–98. http://dx.doi.org/10.4028/www.scientific.net/msf.946.192.

Full text

Abstract:

In domestic practice development of the production technology of rail grinding wheels has outstripped the development of technology for the production of zirconium electro-corundum; the electrocorundum meets the requirements of non-thermal metal treatment. Among the artificial abrasives the leading place belongs to corundum and corundum based alloys (zirconium electrocorundum). At the moment the domestic factories of the abrasive industry are producing zirconium electrocorundum of the pre-eutectic composition (containing about 25% of zirconium dioxide) for rough grinding applied for the rough processing of the rolled products. The zirconium electrocorundum for the final non-thermal metal treatment is not produced by domestic factories; there are no technical requirements for such a material. This work was targeted to develop compositions and parameters for melting of prototypes for the industrial scale production of zirconium electrocorundum with specified and controlled properties. The grain of zirconium electrocorundum in the grinding wheels used in rail grinding trains has specific properties. According to the principles of non-thermal material processing, the structural and phase state of the grinding grain should provide high strength and durability under normal conditions, and at the same time it should tend to shear during the thermal exposure. The design of domestic electrocorundum for rail grinding with properties which are not inferior in comparison with the imported analogues is a strategic issue.

APA, Harvard, Vancouver, ISO, and other styles

6

Bulgakov, V. G., V. F. Tatarinov, and N. S. Gavryushenko. "Tribochemical Component of Oxidative Stress Development at Artificial Joints Implantation. Part 5. Pro-oxidative Properties and Interrelation of Titanium and Non-Metallic Orthopaedic Material Wear Particles with Antioxidants." Vestnik travmatologii i ortopedii imeni N.N. Priorova, no. 3 (September 30, 2015): 41–44. http://dx.doi.org/10.32414/0869-8678-2015-3-41-44.

Full text

Abstract:

Radical-forming ability of artificial wear particles of BT6 titanium alloy and nonmetallic materials was studied using modelling reaction of cumene oxidation. It was stated that alloy particles initiate formation of radicals and consecutive repeated cumene oxidation by metallic particles took place with significantly higher rate of radicals’ formation. Particles of nonmetallic materials (polyethylene, corundum ceramics, carbon nanocomposite) are inert and do not possess radical-forming ability that ensures their advantage in prevention of possible development of adverse free radical reactions in surrounding implant tissues.

APA, Harvard, Vancouver, ISO, and other styles

7

Bulgakov, V. G., V. F. Tatarinov, and N. S. Gavryushenko. "Tribochemical Component of Oxidative Stress Development at Artificial Joints Implantation. Part 5. Pro-oxidative Properties and Interrelation of Titanium and Non-Metallic Orthopaedic Material Wear Particles with Antioxidants." N.N. Priorov Journal of Traumatology and Orthopedics 22, no. 3 (September 15, 2015): 41–44. http://dx.doi.org/10.17816/vto201522341-44.

Full text

Abstract:

Radical-forming ability of artificial wear particles of BT6 titanium alloy and nonmetallic materials was studied using modelling reaction of cumene oxidation. It was stated that alloy particles initiate formation of radicals and consecutive repeated cumene oxidation by metallic particles took place with significantly higher rate of radicals’ formation. Particles of nonmetallic materials (polyethylene, corundum ceramics, carbon nanocomposite) are inert and do not possess radical-forming ability that ensures their advantage in prevention of possible development of adverse free radical reactions in surrounding implant tissues.

APA, Harvard, Vancouver, ISO, and other styles

8

Staniewicz-Brudnik, Barbara, Małgorzata Karolus, Katarzyna Cholewa-Kowalska, Grzegorz Skrabalak, Jolanta Laszkiewicz-Łukasik, Justyna Drukała, Joanna Stalińska, and Katarzyna Dziedzic. "Selected physico-chemical properties of composite scaffolds of sintered submicrocrystalline corundum and bioglass." International Journal of Advanced Manufacturing Technology 120, no. 3-4 (February 16, 2022): 1867–76. http://dx.doi.org/10.1007/s00170-022-08736-w.

Full text

Abstract:

AbstractPresented paper contains description and interpretation of the results of selected physicochemical and structural properties of two types of composite sinters. They were constituted of a mixture of sintered microcrystalline corundum and bioglass CaO-P2O5-SiO2-Na2O system intended for scaffolds to cell culture of human chondrocytes. The composites contained a mixture of both above-mentioned components in the volumetric proportion of 50:50 (W5) and 30:70 (W7). They were obtained using powder metallurgy by free sintering in air atmosphere. Phase analysis of composites and verification of theoretical identification using X-ray diffraction were performed. The same phases were found in both cases (Al2O3 SiO2 CaAl2Si2O8, Ca3 (PO4)2, Ca2Al4O7 and NaAlSiO4). Microscopic tests of composite surfaces were performed and some differences were found. W5 sample was not completely covered with bioglass, whilst W7 sample was completely covered with bioglass with few fine pores. Tests of surface topography confirmed the presence of large and small pores. Composite surfaces immersed for 30 days in artificial blood plasma were tested and then electron microscopy analysis was performed. It was found that no significant changes occurred on the surface of the W5 composite, probably partial corrosion of the glass happened. Spherical forms characteristic of HA-hydroxyapatites were observed on the surface of sample W7. Human articular chondrocyte cells were seeded on both types of sinters and proliferation assay was performed. Results indicate that tested scaffolds support cellular attachment and proliferation of chondrocytes.

APA, Harvard, Vancouver, ISO, and other styles

9

Litasov, Konstantin D., Hiroyuki Kagi, and Tatyana B. Bekker. "Enigmatic super-reduced phases in corundum from natural rocks: Possible contamination from artificial abrasive materials or metallurgical slags." Lithos 340-341 (September 2019): 181–90. http://dx.doi.org/10.1016/j.lithos.2019.05.013.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

De la Torre, A. G., and M. A. G. Aranda. "Accuracy in Rietveld quantitative phase analysis of Portland cements." Journal of Applied Crystallography 36, no. 5 (September 8, 2003): 1169–76. http://dx.doi.org/10.1107/s002188980301375x.

Full text

Abstract:

The polymorphs that constitute most Portland cements have been synthesized: tricalcium silicate, dicalcium silicate, aluminate, ferrite, gypsum, bassanite and calcite. They have been used to prepare artificial mixtures,i.e.white Portland clinker, grey Portland clinker and two types of grey Portland cements. Quantitative mineralogical analyses of these mixtures have been obtained by laboratory X-ray powder diffraction (λ = 1.54 Å) and the Rietveld method. To assess the accuracy of these analyses, high-energy synchrotron X-ray powder data (λ = 0.40 Å) for the same mixtures have also been studied. Furthermore, synchrotron X-ray powder data were collected for binary mixtures of the polymorphs and a corundum standard. This was done to determine the presence of impurity crystalline phases in the synthesized samples and to check the presence of non-negligible amorphous phase contents. The errors in the synchrotron X-ray analyses are quite low (usually smaller than 1 wt%). The relative errors in the laboratory X-ray analyses are of the order of 2% for the main phases and increase to approximately 5–10% for the low-content components. These errors are acceptable in the factory environment and the routine application of this methodology in the cement industry is being implemented.

APA, Harvard, Vancouver, ISO, and other styles

More sources

Books on the topic "Artificial Corundum"

1

The World Market for Artificial Corundum: A 2004 Global Trade Perspective. Icon Group International, Inc., 2005.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

2

Parker, Philip M. The World Market for Artificial Corundum: A 2007 Global Trade Perspective. ICON Group International, Inc., 2006.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

3

Parker, Philip M. The 2007 Import and Export Market for Artificial Corundum in China. ICON Group International, Inc., 2006.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

4

Parker, Philip M. The 2007 Import and Export Market for Artificial Corundum in United States. ICON Group International, Inc., 2006.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

5

Parker, Philip M. The 2007 Import and Export Market for Alumina (Aluminum Oxide) Excluding Artificial Corundum in China. ICON Group International, Inc., 2006.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

6

The World Market for Alumina (Aluminum Oxide) Excluding Artificial Corundum: A 2004 Global Trade Perspective. Icon Group International, Inc., 2005.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

7

Parker, Philip M. The 2007 Import and Export Market for Alumina (Aluminum Oxide) Excluding Artificial Corundum in India. ICON Group International, Inc., 2006.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

8

Parker, Philip M. The World Market for Alumina (Aluminum Oxide) Excluding Artificial Corundum: A 2007 Global Trade Perspective. ICON Group International, Inc., 2006.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Artificial Corundum"

1

"artificial corundum powder." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 72. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_12795.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Artificial Corundum"

1

Oechsner, Matthias, Marius Siebers, Georg Andersohn, Jörg Ellermeier, Kirsten Bobzin, Lidong Zhao, Mehmet Öte, and Tim Königstein. "Wear and Corrosion Behavior of Thermally Sprayed FeCrMnBC Coatings for Pump Parts." In ITSC2018, edited by F. Azarmi, K. Balani, H. Li, T. Eden, K. Shinoda, T. Hussain, F. L. Toma, Y. C. Lau, and J. Veilleux. ASM International, 2018. http://dx.doi.org/10.31399/asm.cp.itsc2018p0774.

Full text

Abstract:

Abstract Especially for industrial applications like pumps, mining or off shore industries, where high demands on the abrasive properties of the materials are required, thermal sprayed Fe-based coatings become increasingly important. Novel FeCrMnBC alloys, which have economic and ecological advantages compared to Ni-based or Co-based coatings, are in the focus of this work. In order to produce adequate coatings with a three-cathode plasma torch, different powder fractions (-45+20 μm, -25+10 μm) and varying chemical composition of FeCrMnBC coatings have been investigated and compared with respect to corrosion, abrasion, and erosion properties. In case of wear reduction, selected coatings were additionally subsequent plasma nitrided to study the effect of this treatment on coating morphology and microstructure. The corrosion and tribological behavior were investigated by means of current/density potential curve measurements and ball-on-disc experiments in view of wear morphologies. Erosion-corrosion behavior has been investigated in a pump test rig with 10 wt.-% solid content of corundum in artificial sea water. In general, samples with small powder fractions exhibit accelerated corrosion and decreased erosion behavior, based on their microstructural characteristics. Plasma nitrided coatings show a decrease in corrosion and erosion resistance, which is presumably due to partial formation of chromium carbide in the coatings. Based on the results, the advantages and disadvantages of FeCrMnBC coatings for the application as wear and corrosion protection of complex pump parts are discussed with respect to varied parameters.

APA, Harvard, Vancouver, ISO, and other styles

2

Oechsner, M., M. Siebers, G. Andersohn, J. Ellermeier, K. Bobzin, L. Zhao, M. Öte, and T. Königstein. "Impact of the Stand-Off Distance and Spray Angle on the Corrosion, Cavitation and Erosion Behaviour of the Thermal Spray Layers Deposited by the Three-Cathode Spraying." In ITSC2017, edited by A. Agarwal, G. Bolelli, A. Concustell, Y. C. Lau, A. McDonald, F. L. Toma, E. Turunen, and C. A. Widener. DVS Media GmbH, 2017. http://dx.doi.org/10.31399/asm.cp.itsc2017p0483.

Full text

Abstract:

Abstract Fe-based coatings, such as novel FeCrMnBC alloys, have both economic and ecological advantages compared to other coatings like Ni-based or Co-based coatings. In recent years, high performance Fe-based wear and corrosion resistant coating systems have been developed. Some of them have even been introduced into the market. However, the suitability of the FeCrMnBC alloy as coating for cast iron under complex erosive and corrosive stresses in particle-loaded fluids for pump parts has not been investigated yet. Especially the impact of the process robustness of three-cathode plasma spraying coatings applied with variable process parameters like stand-off distance and spray angle is in the focus of interest. The objective of the present work has been the characterization of novel FeCrMnBC alloys, for the first time deposited via Thermal Spray processes. The corrosion resistances as well as the cavitation and erosion properties were separately evaluated by current density-potential measurements and supersonic cavitation in artificial sea water. Erosion corrosion behavior has been investigated in a pump test rig with 10 wt.-% corundum (Al2O3) particles. The results show that the reduction of spray angle and the variation of stand-off distance limit the corrosion and cavitation resistance in different ways. The erosion behavior shows only small variations for the tested parameters. The results reveal that the FeCrMnBC coatings exhibit high process robustness for the chosen parameter variations and a large potential to improve the protection of cast iron even for not optimized conditions.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!