Добірка наукової літератури з теми "Heat resistant materials"

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Статті в журналах з теми "Heat resistant materials":

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Tao, Zhenghong, Nantiya Viriyabanthorn, Bhavjit Ghumman, Carol Barry, and Joey Mead. "Heat Resistant Elastomers." Rubber Chemistry and Technology 78, no. 3 (July 1, 2005): 489–515. http://dx.doi.org/10.5254/1.3547893.

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Abstract This paper reviews the different types of heat resistant elastomers and the effects of compounding on the high temperature performance of these materials. Degradation mechanisms and testing procedures are discussed briefly. New developments in improving high temperature resistance are presented.
2

Husarova, I. O., O. M. Potapov, B. M. Gorelov, T. A. Manko, and G. O. Frolov. "Model composition heat-resistant materials for multifunctioal coating." Kosmìčna nauka ì tehnologìâ 28, no. 1 (February 28, 2022): 43–50. http://dx.doi.org/10.15407/knit2022.01.043.

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A schematic diagram of composite material for a heat-resistant multifunctional coating providing radio invisibility and thermal protection of parts of missiles is proposed. Organosilicon binder KO-08K, inorganic binder НС-1A, and heat-resistant mastic NEOMID-TITANIUM were researched to select the materials of the heat-resistant matrix. Based on the analysis of the results of thermal desorption spectrometry of organosilicon binder and mastic NEOMID-TITANIUM with heat-resistant fillers, it was found that the thermal destruction is most effectively reduced by the matrix filler with perlite and aluminum. The efficiency of the selected composites at a high rate of temperature change was evaluated by the heat stroke method. It was revealed that samples based on the organosilicon binder with fillers failed to provide the required heat resistance of the material: NEOMID-TITANIUM mastic can be used in case of filling with 2 % of aluminum and aluminum-silicate binder HC-1A in the case of filling with 5 % aluminum and 10 % mullite. Selected materials were tested in a jet of a gas-dynamic burner. The results confirmed the need to reinforce the matrix with heat-resistant fabrics to increase its strength and erosion resistance. Heat-resistant silica fabric KT-11 and silica heat-resistant tape LKA-1200 were used as heat-resistant radio-transparent reinforcing fabric fillers. Thermo-erosion tests of reinforced samples in the jet of a gas-dynamic burner showed that the minimum linear removal was obtained on samples with a matrix based on NEOMID-TITANIUM mastic, which was reinforced with KT-11 fabric (outer layer) and LKA-1200 tape, which allows using these materials to create the multifunctional coating.
3

Vlasov, V. A., P. V. Kosmachev, N. K. Skripnikova, and K. A. Bezukhov. "Plasma treatment of heat-resistant materials." Journal of Physics: Conference Series 652 (November 5, 2015): 012031. http://dx.doi.org/10.1088/1742-6596/652/1/012031.

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Kometani, Yutaka, and Shinji Tamaru. "Heat resistant and flame retardant materials." Kobunshi 34, no. 12 (1985): 998–1001. http://dx.doi.org/10.1295/kobunshi.34.998.

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McNeill, I. C. "Heat-resistant polymers: technologically useful materials." Polymer 27, no. 7 (July 1986): 1139. http://dx.doi.org/10.1016/0032-3861(86)90089-3.

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Habib, Firdous, and Madhu Bajpai. "UV Curable Heat Resistant Epoxy Acrylate Coatings." Chemistry & Chemical Technology 4, no. 3 (September 15, 2010): 205–16. http://dx.doi.org/10.23939/chcht04.03.205.

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Polymeric materials are exposed to high temperatures that results in lowering of the film integrity. A blend of an epoxy resin with the silicone acrylate resin was developed to provide high heat resistance UV cured coatings. Earlier siliconized epoxy coatings had been developed by conventional curing. But due to environmental awareness, high productivity rate, low process costs and energy saving UV curable coatings are enjoying considerable growth. Thermally stable UV cured coatings used in the present study were developed from silicone acrylate and epoxy acrylate resin with different diluents and photoinitiator. Such coatings provide higher thermal stability (693 K) along with physical and chemical resistance. In addition, such coatings can also be obtained by using functional amino silanes. The resin developed provides a simple and practical solution to improve heat resistance along with physical and chemical resistance of the UV cured coatings. The purpose of this research paper is to develop UV curable heat resistant coatings by the combination of inorganic and organic polymer, taking epoxy acrylate as a base resin.
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Tsybuk, I. O., S. V. Burinskii, and A. A. Lysenko. "Paper Materials Based on Heat Resistant and Flame Resistant Fiber." Fibre Chemistry 48, no. 3 (September 2016): 246–48. http://dx.doi.org/10.1007/s10692-016-9777-3.

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R, Ramanarayanan, HariVenkateswara Rao C, and Venkateshwara Reddy C. "Heat Resistant Composite Materials for Aerospace Applications." International Journal of Advanced Materials Manufacturing and Characterization 3, no. 1 (March 13, 2013): 79–82. http://dx.doi.org/10.11127/ijammc.2013.02.014.

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Lu, Y. Martin, and J. Kutka. "Transparent and Highly Heat-Resistant TPE Materials." International Polymer Science and Technology 29, no. 7 (July 2002): 11–14. http://dx.doi.org/10.1177/0307174x0202900703.

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Belogurova, O. A., and N. N. Grishin. "Highly heat-resistant mullite-silicon carbide materials." Refractories and Industrial Ceramics 49, no. 6 (November 2008): 466–68. http://dx.doi.org/10.1007/s11148-009-9125-8.

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Дисертації з теми "Heat resistant materials":

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Nilsson, Erik. "Oxidation of heat resistant stainless steels in a pelletizing process." Licentiate thesis, Luleå tekniska universitet, Materialvetenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-26622.

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Godkänd; 2014; 20140331 (niriel); Nedanstående person kommer att hålla licentiatseminarium för avläggande av teknologie licentiatexamen. Namn: Erik Nilsson Ämne: Konstruktionsmaterial/Engineering Materials Uppsats: Oxidation of Heat Resistant Stainless Steels in a Pelletizing Process Examinator: Biträdande professor Marta-Lena Antti, Institutionen för teknikvetenskap och matematik, Luleå tekniska universitet Diskutant: Ph.D., Research Leader Rikard Norling, Swerea KIMAB AB, Kista Tid: Tisdag den 27 maj 2014 kl 10.00 Plats: E632, Luleå tekniska universitet
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Davis, Robert Bruce. "Design and development of advanced castable refractory materials /." Full text open access at:, 2001. http://content.ohsu.edu/u?/etd,187.

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Nam, Jae-Do. "Polymer matrix degradation : characterization and manufacturing process for high temperature composites /." Thesis, Connect to this title online; UW restricted, 1991. http://hdl.handle.net/1773/9867.

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Peng, Wu Tseng. "Evaluation of ceramic candle filters degradation and damage location using four-point bending tests." Morgantown, W. Va. : [West Virginia University Libraries], 1999. http://etd.wvu.edu/templates/showETD.cfm?recnum=1105.

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Thesis (M.S.)--West Virginia University, 1999.
Title from document title page. Document formatted into pages; contains x, 85 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 81-82).
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Chhasatia, Viralsinh. "Characterization of thermal interface materials using flash diffusivity and infrared microscopy methods." Diss., Online access via UMI:, 2009.

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Thesis (M.S.)--State University of New York at Binghamton, Thomas J. Watson School of Engineering and Applied Science, Department of Mechanical Engineering, 2009.
Includes bibliographical references.
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Fox, Bronwyn Louise. "The manufacture, characterization and aging of novel high temperature carbon fibre composites." View thesis entry in Australian Digital Theses Program, 2001. http://thesis.anu.edu.au/public/adt-ANU20011207.114246/index.html.

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Khattab, Ahmed. "Exploratory development of VARIM process for manufacturing high temperature polymer matrix composites." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/4186.

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Thesis (Ph. D.)--University of Missouri-Columbia, 2006.
The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (month day, year) Vita. Includes bibliographical references.
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Marenkov, V. I. "Fermi level of carriers in the volume filling defects structure based on heat-resistant metals." Thesis, Sumy State University, 2011. http://essuir.sumdu.edu.ua/handle/123456789/20600.

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The volume filling defects structure based on metals are widely used in modern nan- otechnology, especially when creating high temperature sensors and structural elements based on metal foams [1]. The development of contactless and nondestructive methods for diagnosis and test control parameters of multiply connected matrix base material is a very important and interesting aspect of the application [2]. In a heat-resistant metal with the volume filling defects (VFD) (micro- and nanopores with complex topologies and sizes, see. Figure 1) it is primarily its strength and electrical and physical characteristics. Almost all rapid methods of such measurements are based on both electrical measurements data and on fundamental functional relationships establishing of the microstructure parameters and the dispersion medium carriers [3]. The influence of a disordered set of volume filling defects (VFD) (micro- and nano-pores of complex topology and various sizes, Figure 1.) is the unsolved problem on the electronic properties of the micro heterogeneous materials theory. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/20600
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Yan, Jin. "Aspects of instrumented indentation with applications to thermal barrier coatings." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 177 p, 2007. http://proquest.umi.com/pqdweb?did=1397913961&sid=17&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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Renier, Mark C. "Equipment and process development for fabrication of rhenium-based composites by chemical vapor infiltration." Thesis, Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/18915.

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Книги з теми "Heat resistant materials":

1

R, Davis J., and ASM International. Handbook Committee., eds. Heat-resistant materials. Materials Park, Ohio: ASM International, 1997.

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2

Stoloff, N. S. Processing and design issues in high temperature materials. Warrendale, Pa: Minerals, Metals & Materials Society, 1996.

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3

Yu, Qizhan, and Chunyuan Shi. Nai re jin shu de han jie. 8th ed. Beijing Shi: Ji xie gong ye chu ban she, 2009.

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4

Khoroshavin, L. B. Dialektika kak nauka o razvitii i eë rolʹ v sozidanii ogneuporov novogo pokolenii͡a︡. Ekaterinburg: [s.n.], 1997.

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Khoroshavin, L. B. Ogneupory novogo pokolenii͡a︡. Ekaterinburg: In-t metallurgii UrO RAN, 1996.

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An, Shengli, Xiwen Song, and Jin Hou. Nai huo zhi pin. 8th ed. Beijing Shi: Hua xue gong ye chu ban she, 2010.

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7

European Conference on Advanced Materials and Processes (1st 1989 Aachen, Germany). Advanced materials and processes: Proceedings of the First European Conference on Advanced Materials and Processes, EUROMAT '89. Edited by Exner Hans Eckart, Schumacher V, and Deutsche Gesellschaft für Materialkunde. Oberursel, FRG: DGM Informationsgesellschaft, 1990.

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Symposium on "Materials Design Approaches and Experiences" (2001 Indianapolis, Ind.). Materials design approaches and experiences: Proceedings of symposium. Warrendale, Pa: TMS, 2001.

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International Conference on Heat-Resistant Materials (2nd 1995 Gatlingburg, Tenn.). Heat-resistant materials II: Conference proceedings of the 2nd International Conference on Heat-Resistant Materials, 11-14 September 1995, Gatlinburg, Tennessee. Materials Park, OH: ASM International, 1995.

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E, Bullock, ed. Research and development of high temperature materials for industry. London: Elsevier Applied Science, 1989.

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Частини книг з теми "Heat resistant materials":

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Bíró, Tamás, and László Dévényi. "Damage Analysis of Heat Resistant Steels." In Materials Science Forum, 303–6. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-426-x.303.

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2

Berger, C., J. Granacher, and Y. Kostenko. "Creep Equations for Heat Resistant Steels." In Steels and Materials for Power Plants, 345–51. Weinheim, FRG: Wiley-VCH Verlag GmbH & Co. KGaA, 2006. http://dx.doi.org/10.1002/3527606181.ch60.

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Eisenträger, Johanna, and Holm Altenbach. "Creep in Heat-resistant Steels at Elevated Temperatures." In Advanced Structured Materials, 79–112. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-30355-6_4.

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4

Jingzhong, Wang, Wang Kuaishe, Du Zhongze, Liu Zhengdong, and Baohansheng. "Hot Deformation Behavior of NF709 Austenitic Heat-Resistant Steel." In Energy Materials 2014, 357–63. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-48765-6_41.

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Jingzhong, Wang, Wang Kuaishe, Du Zhongze, Liu Zhengdong, and Baohansheng. "Hot Deformation Behavior of NF709 Austenitic Heat-Resistant Steel." In Energy Materials 2014, 357–63. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119027973.ch41.

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Yan, Peng, Zhengdong Liu, and Yuqing Weng. "Effect of Preferential Heat Treatment on Microstructure of New Martensitic Heat Resistant Steel G115." In Energy Materials 2014, 137–43. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-48765-6_14.

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Kim, Young Wook, Yong Seong Chun, Sung Hee Lee, Ji Yeon Park, Toshiyuki Nishimura, Mamoru Mitomo, and Woo Seog Ryu. "Microstructure and Mechanical Properties of Heat-Resistant Silicon Carbide Ceramics." In Key Engineering Materials, 1409–13. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-410-3.1409.

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Kim, Jeong Min, Bong Koo Park, Joong Hwan Jun, Ki Tae Kim, and Woon Jae Jung. "Die-Casting Capabilities of Heat Resistant Mg-Al-Ca Alloys." In Materials Science Forum, 424–27. Stafa: Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-966-0.424.

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Saida, Kazuyoshi, Woo Hyun Song, Kazutoshi Nishimoto, and Makoto Shirai. "Diode Laser Brazing of Heat-Resistant Alloys Using Tandem Beam." In Materials Science Forum, 493–98. Stafa: Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-980-6.493.

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Yan, Peng, Zhengdong Liu, and Yuqing Weng. "Effect of Preferential Heat Treatment on Microstructure of New Martensitic Heat Resistant Steel G 115." In Energy Materials 2014, 137–43. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119027973.ch14.

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Тези доповідей конференцій з теми "Heat resistant materials":

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Storoshuk, I. P., N. G. Pavlukovich, A. S. Borodulin, A. N. Kalinnikov, and V. M. Alekseev. "Thermoplastic polyetherimides and copolyimides for heat-resistant composite materials." In 13TH INTERNATIONAL SCIENTIFIC CONFERENCE ON AERONAUTICS, AUTOMOTIVE AND RAILWAY ENGINEERING AND TECHNOLOGIES (BulTrans-2021). AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0119920.

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Yan, Jinglong, Quan-an Li, Xiaoya Chen, and Yao Zhou. "Research Progress of Gadolinium in Heat Resistant Magnesium alloys." In 2015 International Conference on Materials, Environmental and Biological Engineering. Paris, France: Atlantis Press, 2015. http://dx.doi.org/10.2991/mebe-15.2015.221.

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Sereda, B., and D. Sereda. "Getting Heat-Resistant Protective Coating under SHS Conditions on Composite Materials." In MS&T18. MS&T18, 2018. http://dx.doi.org/10.7449/2018mst/2018/mst_2018_262_265.

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Sereda, B., and D. Sereda. "Getting Heat-Resistant Protective Coating under SHS Conditions on Composite Materials." In MS&T18. MS&T18, 2018. http://dx.doi.org/10.7449/2018/mst_2018_262_265.

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Kesav Kumar, S., S. Krishnamoorthy, and S. V. Subba Rao. "Thermophysical Properties Evaluation of High Temperature Resistant Materials by Hot wire Method." In 9th AIAA/ASME Joint Thermophysics and Heat Transfer Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2006. http://dx.doi.org/10.2514/6.2006-3138.

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Liu, Juan, Hongyuan Xu, Longhao Qi, and He Li. "Study on Erosive Wear and Novel Wear-Resistant Materials for Centrifugal Slurry Pumps." In ASME 2004 Heat Transfer/Fluids Engineering Summer Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/ht-fed2004-56248.

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The erosive wear of the impellers and liner of centrifugal slurry pumps was investigated. The eroded material surfaces of different parts in impellers and liner have been studied by using scanning electron microscopic (SEM). The examination shows that the eroded surface pattern and eroded degree of different parts in slurry pump are different. The microstructure SEM analysis provides insights into the erosive wear mechanisms in pumps. The material removal processes include chipping out of lateral cracks caused by impact of the erodent particles, grain boundary cracking and grain pull out, as well as plastic deformation caused by the repeated sliding and impact of the particles. A new kind of anti-erosive wear material- Al2O3 engineering ceramic has been made. Engineering ceramics have a high application potential for wear-protection of different working parts used for slurry pumps and mineral industries. Measurements of the erosive wear of various materials used in centrifugal slurry pumps have been studied in a simple slurry pot tester in aqueous slurry of silicon carbide grits. Effects of varying the size distribution and volume content of erodent particle are investigated.
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Baba, S., S. Kuwahara, Y. Karasawa, H. Hanai, Y. Yamazaki, N. Sakuma, A. Kajita, T. Sakai, and K. Ueno. "Heat-Resistant Co-W Catalytic Metals for Multilayer Graphene CVD." In 2012 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 2012. http://dx.doi.org/10.7567/ssdm.2012.c-1-4.

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Suganuma, K., S. Nagao, T. Sugahara, and J. Jiu. "(Invited) Ultra-Heat Resistant Interconnection for Wide Band Gap Semiconductors." In 2015 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 2015. http://dx.doi.org/10.7567/ssdm.2015.e-2-1.

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Baolan, Gu, Shou Binan, Xu Tong, and Wu Zhiying. "The Microstructure Stability of the 10Cr9MoW2VNbBN Heat Resistant Steel." In ASME 2014 Symposium on Elevated Temperature Application of Materials for Fossil, Nuclear, and Petrochemical Industries. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/etam2014-1030.

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In this paper, the microstructure of 9%Cr steel 10Cr9MoW2VNbBN under different heat treatment or creep testing was investigated. The morphology of tempered martensite microstructure varies after different heat treatment. After the creep test at 620°C or 650°C, the martensite lath microstructure kept unchanged, although the amounts and the sizes of precipitates, such as the carbides M23C6, carbonitrides MX, and Laves phase, increased with the creep time. The martensite laths microstructure morphology changed after the creep test at 700°C, with the carbides coarsened severely at grain boundaries. Paper published with permission.
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Koňáková, Dana, Eva Vejmelková, Vojtěch Pommer, Martin Keppert, Anton Trník, and Robert Černý. "Physical and chemical characteristics of heat resistant materials based on high alumina cement." In CENTRAL EUROPEAN SYMPOSIUM ON THERMOPHYSICS 2021 (CEST 2021). AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0069565.

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Звіти організацій з теми "Heat resistant materials":

1

Deevi, S. C., and V. K. Sikka. Reaction synthesis of heat-resistant materials. Office of Scientific and Technical Information (OSTI), December 1995. http://dx.doi.org/10.2172/273757.

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Hershcovitch, Ady, and Michael Furey. Fire Retardant/Heat Resistant Paint, Primer, Insulation and Other Construction Materials. Office of Scientific and Technical Information (OSTI), May 2013. http://dx.doi.org/10.2172/1080286.

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Kelly, J., J. Haslam, L. Finkenauer, P. Roy, J. Stolaroff, D. Nguyen, M. Ross, et al. Additive Manufacturing of Corrosion Resistant UHTC Materials for Chloride Salt-to-sCO2 Brayton Cycle Heat Exchangers. Office of Scientific and Technical Information (OSTI), May 2021. http://dx.doi.org/10.2172/1787194.

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Porter, W. D. Thermophysical Properties of Heat Resistant Shielding Material. Office of Scientific and Technical Information (OSTI), December 2004. http://dx.doi.org/10.2172/885686.

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5

Crisosto, Carlos, Susan Lurie, Haya Friedman, Ebenezer Ogundiwin, Cameron Peace, and George Manganaris. Biological Systems Approach to Developing Mealiness-free Peach and Nectarine Fruit. United States Department of Agriculture, 2007. http://dx.doi.org/10.32747/2007.7592650.bard.

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Peach and nectarine production worldwide is increasing; however consumption is flat or declining because of the inconsistent eating quality experienced by consumers. The main factor for this inconsistent quality is mealiness or woolliness, a form of chilling injury that develops following shipping periods in the global fruit market today. Our research groups have devised various postharvest methods to prolong storage life, including controlled atmosphere and delayed storage; however, these treatments only delay mealiness. Mealiness texture results from disruption of the normal ripening process involving disassembly of cell wall material, and creates a soft fruit texture that is dry and grainy instead of juicy and smooth. Solving this problem is a prerequisite for increasing the demand for fresh peach and nectarine. Two approaches were used to reveal genes and their associated biochemical processes that can confer resistance to mealiness or wooliness. At the Volcani Center, Israel, a nectarine cultivar and the peach cultivar (isogenetic materials) from which the nectarine cultivar spontaneously arose, and at the Kearney Agricultural Center of UC Davis, USA, a peach population that segregates for quantitative resistance to mealiness was used for dissecting the genetic components of mealiness development. During our project we have conducted research integrating the information from phenotypic, biochemical and gene expression studies, proposed possible candidate genes and SNPs-QTLs mapping that are involved in reducing peach mealiness susceptibility. Numerous genes related to ethylene biosynthesis and its signal transduction, cell wall structure and metabolism, stress response, different transcription factor families were detected as being differentially accumulated in the cold-treated samples of these sensitive and less sensitive genotypes. The ability to produce ethylene and keep active genes involved in ethylene signaling, GTP-binding protein, EIN-3 binding protein and an ethylene receptor and activation of ethyleneresponsive fruit ripening genes during cold storage provided greater resistance to CI. Interestingly, in the functional category of genes differentially expressed at harvest, less chilling sensitive cultivar had more genes in categories related to antioxidant and heat sock proteins/chaperones that may help fruit to adapt to low temperature stress. The specific objectives of the proposed research were to: characterize the phenotypes and cell wall components of the two resistant systems in response to mealiness- inducing conditions; identify commonalities and specific differences in cell wall proteins and the transcriptome that are associated with low mealiness incidence; integrate the information from phenotypic, biochemical, and gene expression studies to identify candidate genes that are involved in reducing mealiness susceptibility; locate these genes in the Prunus genome; and associate the genes with genomic regions conferring quantitative genetic variation for mealiness resistance. By doing this we will locate genetic markers for mealiness development, essential tools for selection of mealiness resistant peach lines with improved fruit storability and quality. In our research, QTLs have been located in our peach SNPs map, and proposed candidate genes obtained from the integrated result of phenotypic, biochemical and gene expression analysis are being identified in our QTLs as an approach searching for consistent assistant markers for peach breeding programs.
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Fuchs, Marcel, Jerry Hatfield, Amos Hadas, and Rami Keren. Reducing Evaporation from Cultivated Soils by Mulching with Crop Residues and Stabilized Soil Aggregates. United States Department of Agriculture, 1993. http://dx.doi.org/10.32747/1993.7568086.bard.

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Field and laboratory studies of insulating properties of mulches show that the changes they produce on the heat balance and the evaporation depend not only on the intrinsic characteristics of the material but also on the structure of air flow in boundary layer. Field measurements of the radiation balance of corn residue showed a decrease of reflectivity from 0.2 to 0.17 from fall to spring. The aerodynamic properties of the atmospheric surface layer were turbulent, with typical roughness length of 12 to 24 mm. Evaporation from corn residue covered soils in climate chambers simulating the diurnal course of temperature in the field were up to 60% less than bare soil. Wind tunnel studies showed that turbulence in the atmospheric boundary layer added a convective component to the transport of water vapor and heat through the mulches. The decreasing the porosity of the mulch diminished this effect. Factors increasing the resistance to vapor flow lowering the effect of wind. The behavior of wheat straw and stabilized soil aggregates mulches were similar, but the resistance to water of soil aggregate layer with diameter less than 2 mm were very large, close to the values expected from molecular diffusion.
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Sabau, Adrian. Review of Thermal Contact Resistance of Flexible Graphite Materials for Thermal Interfaces in High Heat Flux Applications. Office of Scientific and Technical Information (OSTI), October 2022. http://dx.doi.org/10.2172/1896991.

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Madrzykowski, aniel, Craig Weinschenk, and Joseph Willi. Exposing Fire Service Hose in a Flashover Chamber. UL's Fire Safety Research Institute, April 2018. http://dx.doi.org/10.54206/102376/tkog7594.

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At the request of the Fire Department City of New York (FDNY), UL’s Fire Safety Research Institute (FSRI) instrumented and documented a series of 12 thermal exposure hose experiments that were conducted in the burn compartment of an FDNY flashover simulator. The main objective of the experiments was to observe the performance of fire hoses exposed to the heat flux from flaming hot gas layer conditions above the hose. FDNY collected a variety of hose types that represented a cross section of commercially available materials and construction methods. The thermal exposures generated in the burn compartment were measured. The fire experiments were stopped once the hose being examined began to lose water through the wall of the hose. All of the hoses lost water through their wall, although the size of the holes and the amount of water leakage varied. While the burn compartment provided a “fire room environment” and different types of hose failures were demonstrated, the thermal exposure within the compartment was not demonstrated to be repeatable. Therefore it is not possible to develop a comparable rank or rating of the fire resistance of these hoses from this series of experiments.
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Shmulevich, Itzhak, Shrini Upadhyaya, Dror Rubinstein, Zvika Asaf, and Jeffrey P. Mitchell. Developing Simulation Tool for the Prediction of Cohesive Behavior Agricultural Materials Using Discrete Element Modeling. United States Department of Agriculture, October 2011. http://dx.doi.org/10.32747/2011.7697108.bard.

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The underlying similarity between soils, grains, fertilizers, concentrated animal feed, pellets, and mixtures is that they are all granular materials used in agriculture. Modeling such materials is a complex process due to the spatial variability of such media, the origin of the material (natural or biological), the nonlinearity of these materials, the contact phenomenon and flow that occur at the interface zone and between these granular materials, as well as the dynamic effect of the interaction process. The lack of a tool for studying such materials has limited the understanding of the phenomena relevant to them, which in turn has led to energy loss and poor quality products. The objective of this study was to develop a reliable prediction simulation tool for cohesive agricultural particle materials using Discrete Element Modeling (DEM). The specific objectives of this study were (1) to develop and verify a 3D cohesionless agricultural soil-tillage tool interaction model that enables the prediction of displacement and flow in the soil media, as well as forces acting on various tillage tools, using the discrete element method; (2) to develop a micro model for the DEM formulation by creating a cohesive contact model based on liquid bridge forces for various agriculture materials; (3) to extend the model to include both plastic and cohesive behavior of various materials, such as grain and soil structures (e.g., compaction level), textures (e.g., clay, loam, several grains), and moisture contents; (4) to develop a method to obtain the parameters for the cohesion contact model to represent specific materials. A DEM model was developed that can represent both plastic and cohesive behavior of soil. Soil cohesive behavior was achieved by considering tensile force between elements. The developed DEM model well represented the effect of wedge shape on soil behavior and reaction force. Laboratory test results showed that wedge penetration resistance in highly compacted soil was two times greater than that in low compacted soil, whereas DEM simulation with parameters obtained from the test of low compacted soil could not simply be extended to that of high compacted soil. The modified model took into account soil failure strength that could be changed with soil compaction. A three dimensional representation composed of normal displacement, shear failure strength and tensile failure strength was proposed to design mechanical properties between elements. The model based on the liquid bridge theory. An inter particle tension force measurement tool was developed and calibrated A comprehensive study of the parameters of the contact model for the DEM taking into account the cohesive/water-bridge was performed on various agricultural grains using this measurement tool. The modified DEM model was compared and validated against the test results. With the newly developed model and procedure for determination of DEM parameters, we could reproduce the high compacted soil behavior and reaction forces both qualitatively and quantitatively for the soil conditions and wedge shapes used in this study. Moreover, the effect of wedge shape on soil behavior and reaction force was well represented with the same parameters. During the research we made use of the commercial PFC3D to analyze soil tillage implements. An investigation was made of three different head drillers. A comparison of three commonly used soil tillage systems was completed, such as moldboard plow, disc plow and chisel plow. It can be concluded that the soil condition after plowing by the specific implement can be predicted by the DEM model. The chisel plow is the most economic tool for increasing soil porosity. The moldboard is the best tool for soil manipulation. It can be concluded that the discrete element simulation can be used as a reliable engineering tool for soil-implement interaction quantitatively and qualitatively.

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