Academic literature on the topic 'Aluminum compounds'

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Journal articles on the topic "Aluminum compounds"

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Demol, Guillaume, Thierry Paulmier, and Denis Payan. "Cathodoluminescence of aluminum ceramic compounds." Journal of Applied Physics 125, no. 2 (January 14, 2019): 025110. http://dx.doi.org/10.1063/1.5066434.

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Gupta, R. "Aluminum compounds as vaccine adjuvants." Advanced Drug Delivery Reviews 32, no. 3 (July 6, 1998): 155–72. http://dx.doi.org/10.1016/s0169-409x(98)00008-8.

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Leman, John T., Janet Braddock-Wilking, Alanna J. Coolong, and Andrew R. Barron. "1,3-Diaryltriazenido compounds of aluminum." Inorganic Chemistry 32, no. 20 (September 1993): 4324–36. http://dx.doi.org/10.1021/ic00072a028.

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Isupov, V. P. "Intercalation compounds of aluminum hydroxide." Journal of Structural Chemistry 40, no. 5 (September 1999): 672–85. http://dx.doi.org/10.1007/bf02903444.

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Borukaev, T. A., A. Kh Malamatov, and A. Kh Salamov. "On the possibility of upgrading the composition of cable PVC compound." Plasticheskie massy, no. 1-2 (March 19, 2021): 7–10. http://dx.doi.org/10.35164/0554-2901-2021-1-2-7-10.

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Upgrade of the composition of cable PVC-compound grade I40-13A with aluminum hydroxide has been carried out. Fire resistance, thermophysical and physical-mechanical properties of the obtained compounds have been investigated. It is shown that the modernization of the composition of cable PVC compound with aluminum hydroxide enables production of a fi re-resistant compound. It was found that aluminum hydroxide significantly changes the thermophysical properties of cable plastic compound. In particular, heat generation and smoke generation during plastic compound combustion are significantly reduced. It has been established that the physical-mechanical and rheological characteristics of the cable compound modernized with aluminum hydroxide remain at the level of the original compound. The optimal amount of aluminum hydroxide for the modernization of cable plastic compound of the I40-13A grade is 10–15 wt.%.
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Sauls, Frederick C., and Leonard V. Interrante. "Coordination compounds of aluminum as precursors to aluminum nitride." Coordination Chemistry Reviews 128, no. 1-2 (October 1993): 193–207. http://dx.doi.org/10.1016/0010-8545(93)80030-9.

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Watanabe, Yoshimi. "Review, Role of L12 Modified (Al1−xMex)3Ti Intermetallic Compounds on Heterogeneous Nucleation of Alpha Aluminum Grains." MATEC Web of Conferences 326 (2020): 06008. http://dx.doi.org/10.1051/matecconf/202032606008.

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Al3Ti intermetallic compound with the tetragonal D022 structure undergoes a phase transformation to the high-symmetry L12 cubic structure by addition of third elements, Me. The lattice constants of some L12 modified (Al1−xMex)3Ti intermetallic compounds are closed to that of alpha aluminum. Therefore, it is expected that the addition of L12 modified (Al1−xMex)3Ti intermetallic compound particles show good grain refining performance of cast aluminum. In this paper, our recent results on novel refines containing heterogeneous nucleation site particles of L12 modified (Al1−xMex)3Ti intermetallic compounds have been reviewed.
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Feuerhack, Andreas, Carolin Binotsch, and Birgit Awiszus. "Formability of Hybrid Aluminum-Magnesium Compounds." Key Engineering Materials 554-557 (June 2013): 21–28. http://dx.doi.org/10.4028/www.scientific.net/kem.554-557.21.

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In the SFB 692 HALS (High-strength aluminum based lightweight materials for safety components), subproject B-3, the production of an aluminum magnesium compound by a hydrostatic co-extrusion process was investigated. The quality of these semi-finished products, especially the stability and robustness of the interface between the aluminum (AlMgSi1) sleeve and magnesium (AZ31) core, was of particular interest. Previous papers have described the first process optimization steps as the improvement of the die design as well as the numerical methods for identification of important process parameters and the development of a quality model for the interface. This paper describes the formability of such semi-finished products with subsequent forging processes, especially die forging. Therefore, two different die forging strategies were investigated. In the first approach the strand-shaped work piece, with a circular cross-section, was formed along its longitudinal axis with die forging. In the second approach the same geometry was radially formed with die forging. Thereby, the compound was formed in longitudinal direction up to an analytical equivalent strain value of 1.61 and in radial direction up to 1.38. First results showed that the interface of the aluminum magnesium compound is very stable and ductile enough to be forged. Dye penetration tests were performed to prove the stability of the interface in a first step. Then, micro sections were made to investigate the interface metallographically. No cracks or damages were detected with both test methods in the interface of the forged aluminum magnesium compound. Furthermore, numerical simulations were performed to analyze the forging processes in detail. Therefore, a full 3D simulation model was set-up with Forge2011 and the calibration was performed with the press force as well as the geometry aspects. The correlations between experiments and simulations are very well. By means of the calibrated simulation detailed analyses of interface section are performed and the stability of the interface was investigated. This shows that the compound quality reached by the hydrostatic co-extrusion process is very suitable for subsequent forming steps as die forging. The investigations show the potential of such hybrid compounds and clarify their application, especially in the automotive sector.
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Mukhamed’yarova, Aliya N., Bulat I. Gareev, Danis K. Nurgaliev, Firdavs A. Aliev, and Alexey V. Vakhin. "A Review on the Role of Amorphous Aluminum Compounds in Catalysis: Avenues of Investigation and Potential Application in Petrochemistry and Oil Refining." Processes 9, no. 10 (October 12, 2021): 1811. http://dx.doi.org/10.3390/pr9101811.

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Aluminum oxides and hydroxides are widely applied because of the great variety of their modifications. In particular, aluminum oxides and hydroxides are used in petrochemistry and oil refining. However, amorphous aluminum compounds have not been sufficiently studied due to the complexity of their synthesis and the problems encountered during their study. The study of amorphous aluminum compounds is hindered by the ambiguity of terminology. In this work, the structures of amorphous aluminum compounds prepared by different methods and the properties that determine their applications have been highlighted in detail. Amorphous aluminum compounds play both positive and negative roles in petrochemistry; however, in petroleum refining, amorphous compounds (without promoters and transition metal salts) demonstrate a promising catalytic performance in oil upgrading.
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Wongpreedee, Kageeporn, Panphot Ruethaitananon, and Tawinun Isariyamateekun. "Interface Layers of Ag-Al Fusing Metals by Casting Processes." Advanced Materials Research 787 (September 2013): 341–45. http://dx.doi.org/10.4028/www.scientific.net/amr.787.341.

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The materials of fusing metals commercially used in the jewelry niche marketing is seen as precious metals. An innovation of fusing metals searched for new materials to differentiate from the markets for mass production. In this research, it studied the bonding processes of silver and aluminium metals by casting processes for mass productions. The studies had been varied parameters on the types of aluminium and process temperature controls. This research had used two types of aluminium which were pure aluminium 99.99% and aluminum 5083 alloys bonding with pure silver 99.99%. The temperatures had been specified for two factors including casting temperature at X1, X2 and flasking temperature at Y1, Y2. From the results, it was found that the casting temperature at 730°C and the flasking temperature at 230 °C of pure silver-aluminum 5083 alloys bonding had the thinnest average thickness of interface at 427.29 μm. The microstructure of pure silver-aluminum 5083 alloy bonding was revealed eutectic-like structures at the interfaces. The EDS analysis showed the results of compounds at interface layers of Ag sides giving Ag2Al intermetallics on pure silver-aluminum 5083 alloy bonding unlike pure silver-pure aluminium bonding giving Ag3Al intermetallics.
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Dissertations / Theses on the topic "Aluminum compounds"

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Peng, Ying. "Synthesis, structures and reactions of aluminum(I) and aluminum(III) compounds." Doctoral thesis, [S.l. : s.n.], 2004. http://webdoc.sub.gwdg.de/diss/2004/peng/peng.pdf.

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Das, Anirban. "Di(3-methylindolyl)methane complexes of aluminum and gallium alkyls /." Connect to Online Resource-OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=toledo1185478138.

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Thesis (M.S.)--University of Toledo, 2007.
Typescript. "Submitted as partial fulfillment of the requirements for the Master of Science Degree in Chemistry." "A thesis entitled"--at head of title. Bibliography: leaves 99-101.
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Ma, Pui-wai, and 馬培煒. "Transport properties of InAs/(A1Sb)/GaSb/(A1Sb)/InAs heterostructure systems." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B30474188.

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Crow, Roger D. "The influence of aluminum salts on the adsorption of cationic polyelectrolyte by cellulosic fibers." Diss., Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/5752.

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Kingsley, Nicholas Bruck. "Synthesis and characterization of Lewis acidic aluminum and gallium complexes /." Connect to full text in OhioLINK ETD Center, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1249998053.

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Thesis (Ph. D.)--University of Toledo, 2009.
Typescript. "Submitted as a partial fulfillment of the requirements for the Doctor of Philosophy Degree in Chemistry." Includes bibliographical references (leaves 123-132).
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Knittel, Susan Means 1961. "Sintering of aluminum-nitride in a microwave induced plasma." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276877.

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The sintering of aluminum nitride in a microwave induced plasma was investigated. The plasma furnace consisted of a quartz tube inserted into a waveguide connected to a 2450 MHz microwave generator. After evacuating the tube to about 1.33 mbar, nitrogen gas was introduced, generating a steady plasma. Processing parameters such as gas pressure, power level, and time were optimized to yield maximum densification of aluminum nitride. Sintering of pure and doped AlN compacts was performed in the nitrogen plasma at temperatures up to 2000 S C. Undoped specimens reached densities of only 81% theoretical, while densities in excess of 95% theoretical were achieved for yttria doped specimens in less than 15 minutes. Microstructural investigations revealed a smaller grain size in the plasma sintered specimens (about 2μ) than are present in conventionally sintered AlN (about 8μ).
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Zheng, Wenjun. "Aluminum Compounds with 3,5-Di-tert-butylpyrazolato Ligands: Syntheses, Structures and Reactions." [S.l.] : [s.n.], 2001. http://webdoc.sub.gwdg.de/diss/2002/zheng/zheng.pdf.

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Reza, Layra E. "Aluminum hydride compounds a theoretical and experimental spectroscopic study /." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2009. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

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Fraser, Andrew. "Mesoscale behavior of an aluminum-manganese dioxide-epoxy mixture under shock loading: from milli to nano-sized aluminum particles." [Milwaukee, Wis.] : e-Publications@Marquette, 2009. http://epublications.marquette.edu/theses_open/7.

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Butala, Rahul R. "Salen Aluminum Compounds in the Dealkylation and Detection of Organophosphates." UKnowledge, 2014. http://uknowledge.uky.edu/chemistry_etds/47.

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The focus of this dissertation is the use of aluminum Schiff base compounds, Salen(tBu)AlBr (SAB), in the dealkylation and detection of organophosphates (OPs). Three SAB compounds, Salen(tBu)AlBr (1), Salpen(tBu)AlBr (2), and Salophen(tBu)AlBr (3) were used to dealkylate a variety of trialkyl OPs. These reactions lead to unique organic-soluble aluminum phosphate compounds containing six-coordinate aluminum. Examples include [salen(tBu)AlOP(O)(OCH3)2]n (4), [salen(tBu)AlOP(O)(OCH2CH3)2]n (5), [salen(tBu)AlOP(O)(OPh)2]n (6), [Salophen(tBu)AlOP(O)(OCH3)2 (7), Salpen(tBu)AlOOP(O)(OiPr)2 (8). These compounds are unique examples of polymeric (4, 5, 6 and 7) and dimeric compounds (8) with salenAl units connected by phosphate linkages. The compounds do not decompose in neutral water. This is an advantage in the use of SABs for the deactivation of phosphate esters such as nerve agents. Water-soluble and stable group 13 salen complexes, Salen(SO3Na)MNO3 (M =Al (19), Ga (22)), Salpen(SO3Na)MNO3 (M = Al (20), Ga (23)), and Salophen(SO3Na)M(NO3) (M = Al (21), Ga (24)) were synthesized by using water-soluble Salen(SO3Na) ligand. All the compounds were characterized by various analytical techniques: 1H and 13C NMR, IR, and melting point. One SAB was used to detect the nerve agents (NA). Salen(tBu)Al(Ac), prepared in situ from Salen(tBu)AlBr and NaAc, forms Lewis acid-base adducts with the NAs, GB (sarin) and GD (soman), and the VX hydrolysis product, EMPA, in aqueous solution. The [Salen(tBu)Al(NA)]+ compound is sufficiently stable to allow the identification of the NA with ESI-MS. Molecular ion peak was detected for every compound with little or no fragmentation. The distinctive MS signatures for [Salen(tBu)Al(NA)]+ compounds provide a new technique for identifying NAs in aqueous solution.
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Books on the topic "Aluminum compounds"

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Heagward, Robinson Gregory, ed. Coordination chemistry of aluminum. New York: VCH, 1993.

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McKillop, A., J. D. Smith, and I. J. Worrall, eds. Organometallic Compounds of Aluminum, Gallium, Indium and Thallium. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4899-7172-2.

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Franco, E. P. Cardoso. Comportamento do ferro e do alumínio em solução aquosa: Diagramas de equilibrio. Lisboa: Ministério da Educação, Instituto de Investigação Científica Tropical, 1989.

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Pi, jian tu jin shu. Beijing: Ke xue chu ban she, 1990.

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Light, Metal Educational Foundation (Osaka Japan) Research Group for Studies on Interface Characteristcs of Aluminum Composite. Report of the Research Group for Studies on interface characteristics of aluminum composite. Osaka: Light Metal Educational Foundation, Inc., 1991.

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Crow, Roger D. The influence of aluminum salts on the adsorption of cationic polyelectrolyte by cellulosic fibers. Appleton, WI: Institute of Paper Chemistry, 1985.

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Żele glinowokrzemionkowe jako ligandy kompleksów tytanu i niklu. Warszawa: Wydawn. Politechniki Warszawskiej, 1985.

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1939-, Desai Pramod D., Payne James E. 1969-, Gilp Brian F. 1968-, and Dudley Ronald D. 1964-, eds. Properties of intermetallic alloys. West Lafayette, Ind: Metals Information Analysis Center, Center for Information and Numerical Data Analysis and Synthesis, Purdue University, 1994.

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Kozubski, Rafał. "Order-order" reactions in Ni₃Al-based intermetallic compounds with L1₂-type superstructure. Kraków: Wyd. Uniwersytetu Jagiellońskiego, 1996.

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International, Symposium on Structural Intermetallics (1st 1993 Champion Pa ). Structural intermetallics: Proceedings of the First International Symposium on Structural Intermetallics, held September 26-30, 1993, at Seven Springs Mountain Resort, Champion, Pennsylvania. Warrendale, Pa: Minerals, Metals & Materials Society, 1993.

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Book chapters on the topic "Aluminum compounds"

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Hocking, M. B. "Aluminum and Compounds." In Modern Chemical Technology and Emission Control, 234–51. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-69773-9_10.

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Mills, J. L., and M. L. Ettel. "With Aluminum Compounds." In Inorganic Reactions and Methods, 185. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145210.ch126.

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Whitfield, H. J. "With Aluminum Compounds." In Inorganic Reactions and Methods, 206–7. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145210.ch140.

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Macintyre, J. E. "Al Aluminum." In Dictionary of Organometallic Compounds, 3–18. Boston, MA: Springer US, 1986. http://dx.doi.org/10.1007/978-1-4615-6847-6_2.

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Macintyre, J. E., F. M. Daniel, D. J. Cardin, S. A. Cotton, R. J. Cross, A. G. Davies, R. S. Edmundson, et al. "Al Aluminum." In Dictionary of Organometallic Compounds, 2–7. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4757-4966-3_2.

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Nagy, Zoltán. "Al—Aluminum." In Electrochemical Synthesis of Inorganic Compounds, 5–10. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4899-0545-1_2.

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Smith, J. D. "Al Aluminum." In Organometallic Compounds of Aluminum, Gallium, Indium and Thallium, 1–112. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4899-7172-2_1.

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Elinder, Carl Gustaf, and Bengt Sjögren. "Occupational exposure to aluminum and its compounds and their health effects." In Aluminum and renal failure, 275–85. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-1868-9_22.

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Gupta, Rajesh K., Bradford E. Rost, Edgar Relyveld, and George R. Siber. "Adjuvant Properties of Aluminum and Calcium Compounds." In Vaccine Design, 229–48. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4615-1823-5_8.

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Hoa, S. V., I. Lulham, and T. S. Sankar. "Aluminum Inserts for Fastening Sheet Moulding Compounds." In Composite Structures 3, 575–83. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-4952-2_40.

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Conference papers on the topic "Aluminum compounds"

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Elled, AnnaLena, Lars-Erik A˚mand, Bengt-A˚ke Andersson, and Bo Leckner. "Phosphorous in Ash From Co-Combustion of Municipal Sewage Sludge With Wood in a CFB Boiler: A Comparison of Experimental Data With Predictions by a Thermodynamic Equilibrium Model." In 18th International Conference on Fluidized Bed Combustion. ASMEDC, 2005. http://dx.doi.org/10.1115/fbc2005-78072.

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Combustion tests have been carried out in a circulating fluidised bed (CFB) boiler co-firing wood and municipal, digested and mechanical dewatered sewage sludge from two Swedish wastewater treatment plants, using either iron sulphate or aluminum sulphate as precipitating chemicals. Experimental data on the concentration of various phosphorous compounds in the ashes are compared with theoretical equilibrium predictions. A clear relationship is not found between the employed precipitation chemical and the formation of phosphorous compounds in the ash. Hematite (Fe2O3(s)) is predicted to be the stable iron compound, and even in the sludge precipitated by iron sulphate, the aluminium content is sufficient to form aluminium phosphate (AlPO4(s)) in similar amounts as in the sludge precipitated by aluminium sulphate. Lime addition to the bed gives a decreased formation of AlPO4(s) in favour of calcium orthophosphate (Ca3(PO4)2(s)), which interferes with the sulphur capture efficiency of lime.
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Hotta, Noriyasu, Kazuma Tawaragi, Hiroshi Asada, Mikinori Hotta, Takeshi Meguro, and Katsutoshi Komeya. "SYNTHESIS OF ALUMINUM NITRIDE WHISKERS BY REDUCTION OF ALUMINA-CALCIA COMPOUNDS AND THEIR PROPERTIES." In Processing and Fabrication of Advanced Materials VIII. WORLD SCIENTIFIC, 2001. http://dx.doi.org/10.1142/9789812811431_0070.

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Braunovic, M., and N. Aleksandrov. "Intermetallic compounds at aluminum-to-copper and copper-to-tin electrical interfaces." In Electrical Contacts - 1992 Proceedings of the Thirty-Eighth IEEE Holm Conference on Electrical Contacts. IEEE, 1992. http://dx.doi.org/10.1109/holm.1992.246938.

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Braunovic, M. "Further studies of different contact aid compounds for aluminum-to-copper connections." In Electrical Contacts - 1999. IEEE, 1999. http://dx.doi.org/10.1109/holm.1999.795928.

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Vertyanov, Denis V., Igor A. Belyakov, Sergey P. Timoshenkov, Anna V. Borisova, and Vitaly N. Sidorenko. "Effects of Gold-aluminum Intermetallic Compounds on Chip Wire Bonding Interconnections Reliability." In 2020 IEEE Conference of Russian Young Researchers in Electrical and Electronic Engineering (EIConRus). IEEE, 2020. http://dx.doi.org/10.1109/eiconrus49466.2020.9039518.

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El Chlouk, Z. G., G. Ayoub, G. T. Kridli, and R. F. Hamade. "Intermetallic Compound Formation in Al/Mg Friction Stir Welded (FSW) Butt Joints." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-37213.

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In this work, friction stir welding (FSW) is used to produce butt joints of 3-mm-thick sheets of AZ31B magnesium alloy to two different aluminum alloys: AA1100 (minimum 99% aluminum) and AA6061 (97.9% Al). The paper reports on utilizing metallurgical techniques to determine the distribution profiles of elemental aluminum and magnesium within the joints were produced using energy dispersive x-ray spectroscopy (EDX). Furthermore, X-ray diffraction (XRD) was used to identify the intermetallic compounds that form in the joints as a result of the stirring action at processing temperatures. Measurements confirmed the presence of primary intermetallic compounds in the welded joints and were identified to be the α-phase (Al12Mg17) and the β-phase (Al3Mg2). Lastly, micro-hardness studies were conducted at the intermetallic-compounds-rich locations resulting in hardness profiles.
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TROTSKY, Mikhail, Sergey PETROVICH, and Maxim ZAMOZDRA. "Mechanical properties of extruded mixed components based on aluminum powders and ternary aluminum-containing intermetallic compounds synthesized by various methods." In METAL 2020. TANGER Ltd., 2020. http://dx.doi.org/10.37904/metal.2020.3603.

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Wang, H., C. Li, G. Yang, C. Li, P. Gao, and Q. Zhang. "Deposition Characteristics of Fe/Al Composite Coating Fabricated by Cold Spraying." In ITSC2008, edited by B. R. Marple, M. M. Hyland, Y. C. Lau, C. J. Li, R. S. Lima, and G. Montavon. Verlag für Schweißen und verwandte Verfahren DVS-Verlag GmbH, 2008. http://dx.doi.org/10.31399/asm.cp.itsc2008p1213.

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Abstract FeAl Intermetallic compounds have excellent wear resistance and high temperature oxidation resistances. The low temperature brittleness makes intermetallic compound materials more suitable to be applied in the form of coating to protect materials from high temperature oxidation and wear. In the present study, a iron/aluminum composite coating was produced by cold spraying of iron and aluminum powder mixtures and then was annealed at different temperatures to aim at forming an iron aluminide intermetallic based coating. The deposition behavior of iron and aluminum powder mixtures and microstructural characteristics of the as-sprayed deposit were examined by scanning electron microscopy (SEM). The kinetics of the phase transformation of the as-sprayed iron/aluminum composite deposit to iron aluminide was characterized by differential scanning calorimetry (DSC) and X-ray diffraction (XRD). The results showed that after heat treatment at a temperature of 600°C, intermediate phase Al5Fe2 coexisted in the deposit with remaining Fe and Al. With increasing heat treatment temperature to 900°C, the deposits consisted of mainly FeAl phase and a trace of remaining Fe phase.
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Губин, Антон Михайлович, and Виктор Васильевич Овчинников. "WELDING WITH A MIX OF DISPERSED-HARDENED ALUMINUM COMPOSITE MATERIALS." In Сборник избранных статей по материалам научных конференций ГНИИ “Нацразвитие” (Санкт-Петербург, Август 2020). Crossref, 2020. http://dx.doi.org/10.37539/aug292.2020.59.65.006.

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Установлена возможность применения сварки трением с перемешиванием для получения неразъемных соединений дисперсно-упрочненных алюмоматричных композиционных материалов, армированных наночастицами AlO и SiC. Определен рациональный диапазон параметров режима в зависимости от объемной концентрации упрочняющих частиц. It is possible to use friction welding with mixing to produce non-corrosive compounds of dispersed aluminum composite materials reinforced by AlO and SiC nanoparticles. A rational range of regime parameters is defined depending on the volume concentration of hardening particles.
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Ma, Hengbo, Ranfeng Qiu, Jiuyong Liu, and Yangyang Zhao. "Study on the Growth Mechanism of Intermetallic Compounds in Solid Interface of Aluminum / Steel." In 2017 3rd International Forum on Energy, Environment Science and Materials (IFEESM 2017). Paris, France: Atlantis Press, 2018. http://dx.doi.org/10.2991/ifeesm-17.2018.160.

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Reports on the topic "Aluminum compounds"

1

Allendorf, Mark D. BAC-G2 Predictions of Thermochemistry for Gas-Phase Aluminum Compounds. Office of Scientific and Technical Information (OSTI), October 2001. http://dx.doi.org/10.2172/791321.

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GRAETZ, J., J. REILLY, G. SANDROCK, J. JOHNSON, W. M. ZHOU, and J. WEGRZYN. ALUMINUM HYDRIDE, A1H3, AS A HYDROGEN STORAGE COMPOUND. Office of Scientific and Technical Information (OSTI), November 2006. http://dx.doi.org/10.2172/899889.

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3

Shenker, Moshe, Paul R. Bloom, Abraham Shaviv, Adina Paytan, Barbara J. Cade-Menun, Yona Chen, and Jorge Tarchitzky. Fate of Phosphorus Originated from Treated Wastewater and Biosolids in Soils: Speciation, Transport, and Accumulation. United States Department of Agriculture, June 2011. http://dx.doi.org/10.32747/2011.7697103.bard.

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Abstract:
Beneficial use of reclaimed wastewater (RW) and biosolids (BS) in soils is accompanied by large input of sewage-originated P. Prolonged application may result in P accumulation up to levelsBeneficial use of reclaimed wastewater (RW) and biosolids (BS) in soils is accompanied by large input of sewage-originated P. Prolonged application may result in P accumulation up to levels that impair plant nutrition, increase P loss, and promote eutrophication in downstream waters. This study aims to shed light on the RW- and BS-P forms in soils and to follow the processes that determine P reactivity, solubility, availability, and loss in RW and BS treated soils. The Technion group used sequential P extraction combined with measuring stable oxygen isotopic composition in phosphate (δ18OP) and with 31P-NMR studies to probe P speciation and transformations in soils irrigated with RW or fresh water (FW). The application of the δ18OP method to probe inorganic P (Pi) speciation and transformations in soils was developed through collaboration between the Technion and the UCSC groups. The method was used to trace Pi in water-, NaHCO3-, NaOH-, and HCl- P fractions in a calcareous clay soil (Acre, Israel) irrigated with RW or FW. The δ18OP signature changes during a month of incubation indicated biogeochemical processes. The water soluble Pi (WSPi) was affected by enzymatic activity yielding isotopic equilibrium with the water molecules in the soil solution. Further it interacted rapidly with the NaHCO3-Pi. The more stable Pi pools also exhibited isotopic alterations in the first two weeks after P application, likely related to microbial activity. Isotopic depletion which could result from organic P (PO) mineralization was followed by enrichment which may result from biologic discrimination in the uptake. Similar transformations were observed in both soils although transformations related to biological activity were more pronounced in the soil treated with RW. Specific P compounds were identified by the Technion group, using solution-state 31P-NMR in wastewater and in soil P extracts from Acre soils irrigated by RW and FW. Few identified PO compounds (e.g., D-glucose-6-phosphate) indicated coupled transformations of P and C in the wastewater. The RW soil retained higher P content, mainly in the labile fractions, but lower labile PO, than the FW soil; this and the fact that P species in the various soil extracts of the RW soil appear independent of P species in the RW are attributed to enhanced biological activity and P recycling in the RW soil. Consistent with that, both soils retained very similar P species in the soil pools. The HUJ group tested P stabilization to maximize the environmental safe application rates and the agronomic beneficial use of BS. Sequential P extraction indicated that the most reactive BS-P forms: WSP, membrane-P, and NaHCO3-P, were effectively stabilized by ferrous sulfate (FeSul), calcium oxide (CaO), or aluminum sulfate (alum). After applying the stabilized BS, or fresh BS (FBS), FBS compost (BSC), or P fertilizer (KH2PO4) to an alluvial soil, P availability was probed during 100 days of incubation. A plant-based bioassay indicated that P availability followed the order KH2PO4 >> alum-BS > BSC ≥ FBS > CaO-BS >> FeSul-BS. The WSPi concentration in soil increased following FBS or BSC application, and P mineralization further increased it during incubation. In contrast, the chemically stabilized BS reduced WSPi concentrations relative to the untreated soil. It was concluded that the chemically stabilized BS effectively controlled WSPi in the soil while still supplying P to support plant growth. Using the sequential extraction procedure the persistence of P availability in BS treated soils was shown to be of a long-term nature. 15 years after the last BS application to MN soils that were annually amended for 20 years by heavy rates of BS, about 25% of the added BS-P was found in the labile fractions. The UMN group further probed soil-P speciation in these soils by bulk and micro X-ray absorption near edge structure (XANES). This newly developed method was shown to be a powerful tool for P speciation in soils. In a control soil (no BS added), 54% of the total P was PO and it was mostly identified as phytic acid; 15% was identified as brushite and 26% as strengite. A corn crop BS amended soil included mostly P-Fe-peat complex, variscite and Al-P-peat complex but no Ca-P while in a BS-grass soil octacalcium phosphate was identified and o-phosphorylethanolamine or phytic acid was shown to dominate the PO fraction that impair plant nutrition, increase P loss, and promote eutrophication in downstream waters. This study aims to shed light on the RW- and BS-P forms in soils and to follow the processes that determine P reactivity, solubility, availability, and loss in RW and BS treated soils. The Technion group used sequential P extraction combined with measuring stable oxygen isotopic composition in phosphate (δ18OP) and with 31P-NMR studies to probe P speciation and transformations in soils irrigated with RW or fresh water (FW). The application of the δ18OP method to probe inorganic P (Pi) speciation and transformations in soils was developed through collaboration between the Technion and the UCSC groups. The method was used to trace Pi in water-, NaHCO3-, NaOH-, and HCl- P fractions in a calcareous clay soil (Acre, Israel) irrigated with RW or FW. The δ18OP signature changes during a month of incubation indicated biogeochemical processes. The water soluble Pi (WSPi) was affected by enzymatic activity yielding isotopic equilibrium with the water molecules in the soil solution. Further it interacted rapidly with the NaHCO3-Pi. The more stable Pi pools also exhibited isotopic alterations in the first two weeks after P application, likely related to microbial activity. Isotopic depletion which could result from organic P (PO) mineralization was followed by enrichment which may result from biologic discrimination in the uptake. Similar transformations were observed in both soils although transformations related to biological activity were more pronounced in the soil treated with RW. Specific P compounds were identified by the Technion group, using solution-state 31P-NMR in wastewater and in soil P extracts from Acre soils irrigated by RW and FW. Few identified PO compounds (e.g., D-glucose-6-phosphate) indicated coupled transformations of P and C in the wastewater. The RW soil retained higher P content, mainly in the labile fractions, but lower labile PO, than the FW soil; this and the fact that P species in the various soil extracts of the RW soil appear independent of P species in the RW are attributed to enhanced biological activity and P recycling in the RW soil. Consistent with that, both soils retained very similar P species in the soil pools. The HUJ group tested P stabilization to maximize the environmental safe application rates and the agronomic beneficial use of BS. Sequential P extraction indicated that the most reactive BS-P forms: WSP, membrane-P, and NaHCO3-P, were effectively stabilized by ferrous sulfate (FeSul), calcium oxide (CaO), or aluminum sulfate (alum). After applying the stabilized BS, or fresh BS (FBS), FBS compost (BSC), or P fertilizer (KH2PO4) to an alluvial soil, P availability was probed during 100 days of incubation. A plant-based bioassay indicated that P availability followed the order KH2PO4 >> alum-BS > BSC ≥ FBS > CaO-BS >> FeSul-BS. The WSPi concentration in soil increased following FBS or BSC application, and P mineralization further increased it during incubation. In contrast, the chemically stabilized BS reduced WSPi concentrations relative to the untreated soil. It was concluded that the chemically stabilized BS effectively controlled WSPi in the soil while still supplying P to support plant growth. Using the sequential extraction procedure the persistence of P availability in BS treated soils was shown to be of a long-term nature. 15 years after the last BS application to MN soils that were annually amended for 20 years by heavy rates of BS, about 25% of the added BS-P was found in the labile fractions. The UMN group further probed soil-P speciation in these soils by bulk and micro X-ray absorption near edge structure (XANES). This newly developed method was shown to be a powerful tool for P speciation in soils. In a control soil (no BS added), 54% of the total P was PO and it was mostly identified as phytic acid; 15% was identified as brushite and 26% as strengite. A corn crop BS amended soil included mostly P-Fe-peat complex, variscite and Al-P-peat complex but no Ca-P while in a BS-grass soil octacalcium phosphate was identified and o-phosphorylethanolamine or phytic acid was shown to dominate the PO fraction.
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4

P.S. Dutta, G. Rajagopalan, J.J. Gutmann, D. Keller, and L. Sweet. A Single Step Lapping and Polishing Process for Achieving Surfaces of Compound Semiconductors with Atomic Flatness using a Sub-micron Agglomerate-free Alumina Slurry. Office of Scientific and Technical Information (OSTI), August 2002. http://dx.doi.org/10.2172/821860.

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