Log in

Relevant bibliographies by topics / Ultrahard

Contents

Journal articles
Dissertations / Theses
Books
Book chapters
Conference papers
Reports

Academic literature on the topic 'Ultrahard'

Author: Grafiati

Published: 4 June 2021

Last updated: 20 February 2023

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

Select a source type:

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

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 "Ultrahard"

1

MATSUSHITA, TETSUO. "Ultrahard chromium plating." Jitsumu Hyomen Gijutsu 34, no. 11 (1987): 459–62. http://dx.doi.org/10.4139/sfj1970.34.459.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Sahota, P. K., Y. Liu, R. Skomski, P. Manchanda, R. Zhang, M. Franchin, H. Fangohr, G. C. Hadjipanayis, A. Kashyap, and D. J. Sellmyer. "Ultrahard magnetic nanostructures." Journal of Applied Physics 111, no. 7 (April 2012): 07E345. http://dx.doi.org/10.1063/1.3679453.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Nuwer, Rachel. "Ultrahard Recyclable Plastics." Scientific American 311, no. 6 (November 18, 2014): 52. http://dx.doi.org/10.1038/scientificamerican1214-52a.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Riedel, Ralf. "Novel Ultrahard Materials." Advanced Materials 6, no. 7-8 (July 1994): 549–60. http://dx.doi.org/10.1002/adma.19940060705.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Shul’zhenko, A. A., E. E. Ashkinazi, A. N. Sokolov, V. G. Gargin, V. G. Ral’chenko, V. I. Konov, L. I. Aleksandrova, et al. "Novel hybrid ultrahard material." Journal of Superhard Materials 32, no. 5 (October 2010): 293–300. http://dx.doi.org/10.3103/s1063457610050011.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Herrmann, M., I. Sigalas, M. Thiele, M. M. Müller, H. J. Kleebe, and A. Michaelis. "Boron suboxide ultrahard materials." International Journal of Refractory Metals and Hard Materials 39 (July 2013): 53–60. http://dx.doi.org/10.1016/j.ijrmhm.2012.02.009.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Siegal, M. P., D. R. Tallant, P. N. Provencio, D. L. Overmyer, R. L. Simpson, and L. J. Martinez-Miranda. "Ultrahard carbon nanocomposite films." Applied Physics Letters 76, no. 21 (May 22, 2000): 3052–54. http://dx.doi.org/10.1063/1.126576.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Blank, V., M. Popov, N. Lvova, K. Gogolinsky, and V. Reshetov. "Nano-sclerometry measurements of superhard materials and diamond hardness using scanning force microscope with the ultrahard fullerite C60 tip." Journal of Materials Research 12, no. 11 (November 1997): 3109–14. http://dx.doi.org/10.1557/jmr.1997.0406.

Full text

Abstract:

The new procedure for the hardness measurements of superhard materials including diamond using the scanning force microscope with the ultrahard fullerite C60 tip was developed. It is shown that diamond is plastically deformed under the indentation by the ultrahard fullerite indenter at room temperature. Now the correct measurements of diamond hardness have become possible. The hardness values measured are 137 ± 6 and 167 ± 5 GPa for the diamond faces (100) and (111), respectively.

APA, Harvard, Vancouver, ISO, and other styles

9

Bybee, Karen. "Improved ROP in Ultrahard Rock." Journal of Petroleum Technology 58, no. 12 (December 1, 2006): 76–77. http://dx.doi.org/10.2118/1206-0076-jpt.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Brazhkin, Vadim V. "Ultrahard nanomaterials: myths and reality." Uspekhi Fizicheskih Nauk 190, no. 06 (July 2019): 561–84. http://dx.doi.org/10.3367/ufnr.2019.07.038635.

Full text

APA, Harvard, Vancouver, ISO, and other styles

More sources

Dissertations / Theses on the topic "Ultrahard"

1

Harris, Trudy Katherine. "The mechanical properties of ultrahard materials at elevated temperatures." Thesis, University of Hull, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363188.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Hale, Michael Andrew. "Ferroelectric liquid crystals for display applications and ultrahard materials via shock compression /." Digital version accessible at:, 1998. http://wwwlib.umi.com/cr/utexas/main.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Nizamutdinova, Alina [Verfasser], and Wüllen Leo [Akademischer Betreuer] van. "Modern solid-state NMR on amorphous materials: ultrahard glasses and polyacrylonitrile / Alina Nizamutdinova ; Betreuer: Leo van Wüllen." Augsburg : Universität Augsburg, 2021. http://nbn-resolving.de/urn:nbn:de:bvb:384-opus4-889649.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Vaughan, R. A. "The effects of hardness, toughness, microstructure and thermomechanical heating on the erosion of ceramic and ultrahard materials." Master's thesis, University of Cape Town, 1991. http://hdl.handle.net/11427/18218.

Full text

Abstract:

Nine different ceramic and ultrahard materials have been eroded by four different erodents under standardised experimental conditions. The target materials range from the soft stabilised zirconias to the very hard polycrystalline diamond composites. The four erodent particles used were: soft, friable silica, sharp alumina, tough silicon carbide and very hard, synthetic industrial diamonds. The steady state erosion rates of the different target/erodent combinations were measured. The erosion for each combination was studied by examining the target surfaces at progressive stages of erosion and the erodent particles after impact. Special attention has been paid to the morphology of impact sites, the amount of material lost and the mechanisms of erosion. The ceramic materials eroded by an elastic/plastic process: irreversible deformation is followed by lateral fracture. The ultrahard materials erode by a complex process involving deformation and extrusion of the softer phases and fracture and loss of the harder crystallites. The relative hardness of the target and erodent is a determining factor in erosion. When the hardnesses are similar, the ease of initiation and propagation of lateral fracture determines the rate of material removal. When the erodent particles are much harder than the target material, initiation of fracture is inevitable and the ease of crack propagation determines the rate of material removal. This is controlled by the sharpness of the particles and the microtoughness of the target material. The microtoughness is a function of grain size, porosity and defect density. Melting features, seen in many of the eroded surfaces, are thought to arise from a combination of plastic deformation and frictional heating under high contact stresses. The amount of heat dissipated is determined by the erodent and target hardness and friction coefficients. The rate at which the heat diffuses away from the impact zone is determined by the thermal diffusivities, heat capacities and densities of the target and the erodent.

APA, Harvard, Vancouver, ISO, and other styles

5

Merchant, Alexander Raymond. "An investigation of carbon nitride." Thesis, The University of Sydney, 2001. http://hdl.handle.net/2123/832.

Full text

Abstract:

This thesis employs experimental and theoretical methods to characterise carbon nitride solids and proposes a generalstructural model for amorphous carbon nitride (a-C:N). It finds that a-C:N deposited by several methods is essentially identical, with similar bonding environments for carbon and nitrogen atoms. Using evidence from several techniques, the saturation of nitrogen in an sp2 carbon matrix is discussed. The experimental studies on a range of carbon nitride solids show no evidence for a crystalline form of carbon nitride. In addition to the experimental characterisation of a-C:N, ab initio molecular dynamics were used to investigate bonding and structure in carbon nitride. These simulations show that the most common form of nitrogen bonding was three-fold sites with a lone pair of electrons. Two-fold nitrogen sites were also found in agreement with experimental findings. An increase of nitrogen in a-C:N decreases the sp3-carbon fraction, but this is not localised on the nitrogen and the effect is most severe at high densities. A simulation of a low density/high nitrogen content network shows that the nitrogen saturation seen experimentally may be due to the formation of N2 dimers and C-N molecules which are easily driven out of the structure. The ab initio simulations also explore the nature of charged nitrogen and carbon sites in a-C:N. An analysis based on Wannier Function centres provided further information about the bonding and allowed for a detailed classification of these sites. The removal of electrons from the networks caused structural changes that could explain the two-state conductivity in ta-C:N memory devices. Finally, a theoretical study of the electron energy-loss near-edge structure (ELNES) calculated using multiple scattering theory is presented. The calculated ELNES of diamond, graphite and boron, silicon and carbon nitride structures compare well to experiment and supports the experimental finding that no crystalline carbon nitride had (or has) been produced. These ELNES calculations will however, provide a means of identifying crystalline beta-C3N4 should it be synthesised.

APA, Harvard, Vancouver, ISO, and other styles

6

Merchant, Alexander Raymond. "An investigation of carbon nitride." University of Sydney. Physics, 2001. http://hdl.handle.net/2123/832.

Full text

Abstract:

This thesis employs experimental and theoretical methods to characterise carbon nitride solids and proposes a generalstructural model for amorphous carbon nitride (a-C:N). It finds that a-C:N deposited by several methods is essentially identical, with similar bonding environments for carbon and nitrogen atoms. Using evidence from several techniques, the saturation of nitrogen in an sp2 carbon matrix is discussed. The experimental studies on a range of carbon nitride solids show no evidence for a crystalline form of carbon nitride. In addition to the experimental characterisation of a-C:N, ab initio molecular dynamics were used to investigate bonding and structure in carbon nitride. These simulations show that the most common form of nitrogen bonding was three-fold sites with a lone pair of electrons. Two-fold nitrogen sites were also found in agreement with experimental findings. An increase of nitrogen in a-C:N decreases the sp3-carbon fraction, but this is not localised on the nitrogen and the effect is most severe at high densities. A simulation of a low density/high nitrogen content network shows that the nitrogen saturation seen experimentally may be due to the formation of N2 dimers and C-N molecules which are easily driven out of the structure. The ab initio simulations also explore the nature of charged nitrogen and carbon sites in a-C:N. An analysis based on Wannier Function centres provided further information about the bonding and allowed for a detailed classification of these sites. The removal of electrons from the networks caused structural changes that could explain the two-state conductivity in ta-C:N memory devices. Finally, a theoretical study of the electron energy-loss near-edge structure (ELNES) calculated using multiple scattering theory is presented. The calculated ELNES of diamond, graphite and boron, silicon and carbon nitride structures compare well to experiment and supports the experimental finding that no crystalline carbon nitride had (or has) been produced. These ELNES calculations will however, provide a means of identifying crystalline beta-C3N4 should it be synthesised.

APA, Harvard, Vancouver, ISO, and other styles

7

Barth, Michael. "Entwicklung neuer hochbeladener Trägermaterialien für die organische Festphasensynthese auf der Basis von vernetztem Polyethylenimin (Ultraharze)." [S.l. : s.n.], 2004. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB11380533.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Maseko, Emily Tholakele. "On development of ultrahard hafnium and titanium carbide materials." Thesis, 2012. http://hdl.handle.net/10210/7215.

Full text

Abstract:

M.Tech.
A mixture of HfC and TiC powders and a (Hf,Ti)C powder have been hot pressed with 4wt% Ni. In the absence of Ni the hot pressed temperature was 2000 °C and in the presence of Ni 1650 °C. The pressure of 30 MPa was applied in both cases. The starting powders were substoichiometric, as deduced from XRD spectra analyses, and the (Hf,Ti)C powders consisted of a range of compositions, as indicated by the width of the XRD peaks. In the absence of Ni the powders sintered without the formation of a liquid phase. In the case of HfC and TiC mixture, high- energy dry milled HfC + TiC +C black powder sintering occurred with simultaneous formation of (Hf,Ti)C solid solution. On account of mutual solid solubility of two carbides vacancy interdiffusion controlled the solution as well as the sintering process, assisted by the high concentration of vacancies in the starting powders. In the case of (Hf,Ti)C powder diffusion was also the controlling process because t he solid solution was not h omogeneous a nd the system t ended to homogenization, as shown by t he narrowing of t he XRD peaks after sintering. Since the diffusion of HfC into TiC did not occur at the same rate as the diffusion of TiC into HfC (as expected, on account of the different melting points of the two materials) diffusional porosity was observed in some of the (Hf, Ti) C grains. Grain growth was substantial but uniform. In the presence of Ni, sintering occurred with the formation of a liquid phase. The volume fraction of the liquid phase formed was sufficient to yield a low porosity. Grain growth was less than in the case of material sintered without Ni, probably just on account of lower sintering temperature. In the case of high- energy dry milled the reduction in particle size was observed.

APA, Harvard, Vancouver, ISO, and other styles

9

Matizamhuka, Wallace R. "A study on the synthesis of ultrahard cubic BC2N heterodiamond." Thesis, 2010. http://hdl.handle.net/10539/8296.

Full text

Abstract:

In recent years there have been great efforts towards the invention of materials aimed at addressing the weaknesses of diamond as a superabrasive material. The low thermal oxidation stability and inability to resist chemical attack by iron group metals (Fe, Ni, Co and its alloys) makes it uneconomical to use diamond for high speed machining of steel alloys. Although cubic boron nitride (c-BN) has in some instances sufficed as the superabrasive of choice for high speed machining of steel alloys, its hardness value is about half that of diamond. In light of this, it is important to take into consideration what makes the traditional superabrasives special inorder to design superabrasives that can successfully complement diamond and c-BN. The synthesis of materials consisting of light elements such as boron, carbon, nitrogen and oxygen possessing extremely strong and short covalent bonds forming tight 3-D networks with extreme resistance to external forces will lead to major breakthroughs in this endeavour. This justifies the efforts directed at exploring the B-C-N system. Still the search has been hindered by several factors such as the inability to obtain suitable starting materials and the prohibitively high synthesis pressures. It is however envisaged that with persistent research a breakthrough will eventually be made. Thus this will keep this field of study energised for some time. iv The present work investigates the possibility of obtaining bulk sintered cubic BN-C materials over a range of P,T,t conditions, from a polymer derived t-BN-C starting material. The choice of the starting material was arrived at after a consideration of several factors such as level of atomic intermixing, % yield of the method, high temperature stability of the starting material and the cost of production. The BN-C starting materials used in the present study were synthesized by solid phase pyrolysis of piperazine borane, C4H10N2·BH3 at the Darmstadt Institute of Materials Science, Darmstadt,Germany. A milled mixture of graphite and h-BN in the molar ratio of 2:1 was prepared for comparison purposes. Piperazine borane was obtained by the reaction of piperazine (99 %) with borane dimethyl sulphide complex in a molar ratio of 1:1. The borane was first polymerized at 400 °C for 10 h in Ar forming a yellow coloured polymer. In a second step the resulting infusible polymer was thermally decomposed at 1050 °C and 2h holding time under Ar flow and with a heating rate of 100 °C/min to give the ternary BN-C material in about 44 wt% ceramic yield. The ceramic was subsequently heat treated under N2 atmosphere to give a nominal composition of BC1.97N with 0.438(7) wt% oxygen. The starting materials were characterised by X-ray diffraction, Raman spectroscopy, Fourier Transform Infrared Spectroscopy (FT-IR), Thermal gravimetry Analysis and X-Ray Spectroscopy (XPS). The starting BN-C materials were found to posses a turbostratic type structure composed of mostly C-C and B-N type bonds. The exact arrangement however could not be ascertained from the analyses above. v Static high pressure and high temperature (HP/HT) studies show a thermal stability threshold of 2000°C at 2GPa. An attempt to synthesise cubic phases under shock compression using a gas gun and column type methods resulted in no transformation at temperatures below 2000°C and pressures of up to 46GPa. However decomposition was observed at higher temperatures with the formation of boron carbide materials besides the BN-C starting materials. A further static HP/HT synthesis was successfully conducted in a 1200 t Sumitomo and large volume 5000t Zwick-Voggenreiter ‘6-8’ type multi-anvil presses at the Bayerisches Geoinstitut, Bayreuth,Germany. Bulk cubic BN-C materials were synthesized under static high thermobaric conditions (20 GPa/2000 °C/30 s and 60 s holding time and fast quench) in the form of sample Z608 from the 5000t press and S4306 in the 1200t press respectively. A partial transformation was observed at 1920°C at the same pressure and no transformation was observed by compressing the precursor at room temperature and 20GPa pressure. Furthermore, no phase transformation was observed at 15GPa and 2000°C heating. The bulk samples were characterised by synchrotron XRD, Raman spectroscopy and Transmission Electron Microscopy (TEM). Polycrystalline c-BC2N materials with an F-43m space group were formed under the applied reaction conditions. The ternary boron carbonitride bulk materials possess unique Raman spectra resembling those known for boron-doped diamond samples. This has prompted a further investigation on the low temperature resistivity properties of high pressure-high temperature synthesised samples. Temperature dependence resistivity studies of sample Z608 have shown a characteristic vi semiconducting property typical of amorphous type materials. TEM studies revealed partial decomposition of sample Z608 with some nanodiamond being observed in High Resolution-TEM. In conclusion, this work shows that the successful synthesis conditions of a cubic BN-C phase from polymer derived BN-C ceramic are 20GPa,2000°C and 30s isothermal holding time. The HP/HT synthesis of cubic BN-C from this particular polymer derived ceramic has not been reported earlier, thus this work presents a novel method. Furthermore, the project presents similiar findings reported earlier in referenced literature confirming the very high thermobaric conditions required for obtaining the cubic BN-C materials. This makes the commercialisation of c-BN-C synthesis a non-starter thus the most plausible route would be to study the possibility of reducing the thermobaric conditions in the presence of solvent catalysts.

APA, Harvard, Vancouver, ISO, and other styles

10

Barth, Michael [Verfasser]. "Entwicklung neuer hochbeladener Trägermaterialien für die organische Festphasensynthese auf der Basis von vernetztem Polyethylenimin (Ultraharze) : Anwendung im Bereich der Peptidsynsthese, für Polymerreagenzien und zur Synthese von peptidfunktionalisierten dendritischen Polymeren / vorgelegt von Michael Barth." 2004. http://d-nb.info/972290664/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "Ultrahard"

1

Kanyanta, Valentine, ed. Microstructure-Property Correlations for Hard, Superhard, and Ultrahard Materials. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-29291-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Ultrahard Crosswords to Keep You Sharp. Puzzlewright, 2010.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

3

Newman, Stanley. Random House Ultrahard Crosswords, Volume 4 (Stan Newman). Random House Puzzles & Games, 1996.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

4

Newman, Stanley. Random House Ultrahard Crosswords, Volume 1 (Stan Newman). Random House Puzzles & Games, 1994.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

5

Newman, Stanley. Random House Ultrahard Crosswords, Volume 3 (Stan Newman). Random House Puzzles & Games, 1996.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

6

Newman, Stanley. Random House Ultrahard Crosswords, Volume 2 (Stan Newman). Random House Puzzles & Games, 1995.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

7

Newman, Stanley. Random House Ultrahard Crosswords, Volume 5 (Stan Newman). Random House Puzzles & Games, 1998.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

8

Kanyanta, Valentine. Microstructure-Property Correlations for Hard, Superhard, and Ultrahard Materials. Springer, 2018.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

9

Kanyanta, Valentine. Microstructure-Property Correlations for Hard, Superhard, and Ultrahard Materials. Springer London, Limited, 2016.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

10

Kanyanta, Valentine. Microstructure-Property Correlations for Hard, Superhard, and Ultrahard Materials. Springer, 2016.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

More sources

Book chapters on the topic "Ultrahard"

1

Kanyanta, Valentine. "Hard, Superhard and Ultrahard Materials: An Overview." In Microstructure-Property Correlations for Hard, Superhard, and Ultrahard Materials, 1–23. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-29291-5_1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Veprek, Stan, and Maritza G. J. Veprek-Heijman. "Superhard and Ultrahard Nanostructured Materials and Coatings." In Microstructure-Property Correlations for Hard, Superhard, and Ultrahard Materials, 167–210. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-29291-5_6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Blank, V., S. Buga, G. Dubitsky, N. Serebryanaya, M. Popov, and V. Prokhorov. "Properties and Applications of Superhard and Ultrahard Fullerites." In Perspectives of Fullerene Nanotechnology, 223–33. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-9598-3_19.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Wort, Christopher John Howard. "Applications for Superhard and Ultra-Hard Materials." In Microstructure-Property Correlations for Hard, Superhard, and Ultrahard Materials, 25–74. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-29291-5_2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Matizamhuka, Wallace. "Structure-Properties Relationships." In Microstructure-Property Correlations for Hard, Superhard, and Ultrahard Materials, 75–103. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-29291-5_3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Veprek-Heijman, Maritza G. J., and Stan Veprek. "Measurements of Hardness and Other Mechanical Properties of Hard and Superhard Materials and Coatings." In Microstructure-Property Correlations for Hard, Superhard, and Ultrahard Materials, 105–34. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-29291-5_4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Carolan, Declan, and Alojz Ivankovic. "Fracture Toughness of Hard and Superhard Materials: Testing Methods and Limitations." In Microstructure-Property Correlations for Hard, Superhard, and Ultrahard Materials, 135–65. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-29291-5_5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Kasonde, Maweja, and Valentine Kanyanta. "Future of Superhard Material Design, Processing and Manufacturing." In Microstructure-Property Correlations for Hard, Superhard, and Ultrahard Materials, 211–39. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-29291-5_7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Schwarz, R. "Ultraharte Strahlenqualitäten bei der Therapie des Zervixkarzinoms." In Gynäkologie und Geburtshilfe 1990, 1199–200. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-76124-9_592.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Sung, James. "Ultrahard Materials." In Handbook of Industrial Diamonds, 35–79. Jenny Stanford Publishing, 2021. http://dx.doi.org/10.1201/9781003180456-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Ultrahard"

1

Roehrlich, Michael, and Kai-Uwe Belohlavek. "ROP Enhancement In Ultrahard Rock." In IADC/SPE Drilling Conference. Society of Petroleum Engineers, 2006. http://dx.doi.org/10.2118/99045-ms.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Blank, Vladimir D., Sergei G. Buga, Nadejda R. Serebryanaya, Gennadii A. Dubitsky, Vaycheslav M. Prokhorov, Michail Yu Popov, Natalia A. Lvova, Vadim M. Levin, and Sergei N. Sulyanov. "Cluster structure and elastic properties of superhard and ultrahard fullerites." In The 12th international winterschool on electronic properties of novel materials: progress in molecular nanostructures. AIP, 1998. http://dx.doi.org/10.1063/1.56509.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Cheng, C., W. Li, X. Wang, Y. Wang, J. Xu, X. Yang, and J. Yao. "Development of a Diamond Containing Material for Drilling in Ultrahard Formations." In MS&T19. TMS, 2019. http://dx.doi.org/10.7449/2019mst/2019/mst_2019_99_106.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Cheng, C., W. Li, X. Wang, Y. Wang, J. Xu, X. Yang, and J. Yao. "Development of a Diamond Containing Material for Drilling in Ultrahard Formations." In MS&T19. TMS, 2019. http://dx.doi.org/10.7449/2019/mst_2019_99_106.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Kar, N. J. "Ultrahard Laser Coatings on Rock Bit Cutters for Wear and Erosion Resistance." In IADC/SPE Drilling Conference. Society of Petroleum Engineers, 1990. http://dx.doi.org/10.2118/19910-ms.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Rosidian, Aprillya, Yanjing Liu, and Richard O. Claus. "Formation of ultrahard metal oxide nanocluster coatings at room temperature by electrostatic self-assembly." In 1999 Symposium on Smart Structures and Materials, edited by Manfred R. Wuttig. SPIE, 1999. http://dx.doi.org/10.1117/12.352784.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Blank, Vladimir D., Sergei G. Buga, Gennadii A. Dubitsky, Xiao-Mei Zhu, Emmanuel Nyeanchi, and Bertil Sundqvist. "Electric resistivity and magnetoresistance of some superhard and ultrahard fullerites in the range 300-2K." In ELECTRONIC PROPERTIES OF NOVEL MATERIALS--SCIENCE AND TECHNOLOGY OF MOLECULAR NANOSTRUCTURES. ASCE, 1999. http://dx.doi.org/10.1063/1.59821.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Przewlocka-Rus, Dominika, and Tomasz Kryjak. "Quantised Siamese Tracker for 4K/UltraHD Video Stream – a demo." In 2021 31st International Conference on Field-Programmable Logic and Applications (FPL). IEEE, 2021. http://dx.doi.org/10.1109/fpl53798.2021.00089.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Kowalczyk, Marcin, and Tomasz Kryjak. "A comparison of real-time 4K/UltraHD connected component labelling architectures." In 2021 31st International Conference on Field-Programmable Logic and Applications (FPL). IEEE, 2021. http://dx.doi.org/10.1109/fpl53798.2021.00086.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Тимохин, Петр, Petr Timokhin, Михаил Михайлюк, and Mikhail Mikhaylyuk. "Compact GPU-based Visualization Method for High-resolution ResultingData of Unstable Oil Displacement Simulation." In 29th International Conference on Computer Graphics, Image Processing and Computer Vision, Visualization Systems and the Virtual Environment GraphiCon'2019. Bryansk State Technical University, 2019. http://dx.doi.org/10.30987/graphicon-2019-2-4-6.

Full text

Abstract:

In the paper the task of real-time synthesis of quality images of resulting data obtained in simulation of unstable oil displacement from porous media is considered. A new, GPU-based method to construct and visualize on UltraHD screens a polygonal model of the isosurface of the saturation of displacing liquid was proposed. The method is based on distributing and parallelizing of «marching cubes» threads between GPU cores by means of programmable tessellation. As initial graphic primitives, quadrangular parametric patches are used, the processing of which on the GPU is high-performance and has low video memory overhead. The proposed method was implemented in visualization software and successfully tested. The proposed solution can be used in researches in oil and gas industry as well as in virtual environment systems, virtual laboratories, scientific and educational applications, etc.

APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Ultrahard"

1

Chrzan, D. C., M. Dugger, D. M. Follstaedt, Lawrence H. Friedman, T. A. Friedmann, J. A. Knapp, K. F. McCarty, et al. Ultrahard Multilayer Coatings. Office of Scientific and Technical Information (OSTI), May 1999. http://dx.doi.org/10.2172/7225.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Riedel, Ralf, and James W. McCauley. Report of Research at Technische Universitaet Darmstadt on Ultrahard Materials in the B-C-N-Si System. Fort Belvoir, VA: Defense Technical Information Center, June 2015. http://dx.doi.org/10.21236/ada623862.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Carpick, Robert W. Uncovering the Fundamental Nature of Tribological Interfaces: High Resolution Tribology and Spectroscopy of Ultrahard Nanostructured Diamond Films for MEMS and Beyond. Fort Belvoir, VA: Defense Technical Information Center, December 2007. http://dx.doi.org/10.21236/ada589647.

Full text

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!