Academic literature on the topic 'Iridium'

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Journal articles on the topic "Iridium"

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Ebrahimpour tolouei, Nadia, Florian Chabot, Gaohua Zhu, and Iryna Zenyuk. "Understanding in-Plane Movement of Iridium in Proton Exchange Membrane Electrolyzer after Accelerated Stress Test." ECS Meeting Abstracts MA2024-01, no. 34 (2024): 1704. http://dx.doi.org/10.1149/ma2024-01341704mtgabs.

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In the rapidly evolving field of clean energy, proton exchange membrane water electrolyzers (PEMWEs) stand at the forefront, heralding a new era of sustainable hydrogen fuel production. PEMWEs need to operate for at least 10 years and material degradation is a challenge that needs to be overcome. Here we use H2NEW accelerated stress (AST) protocol to degrade 5 cm2 PEMWE cell having low iridium loadings on the anode side. Using X-ray fluorescence (XRF) mapping, we first assessed the iridium distribution at the beginning of life (BOL) of the electrolyzer cell and then afterwards at the end of li
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Clapp, Mark, Christopher Mark Zalitis, and Margery Ryan. "Green Hydrogen via PEM Electrolysis – Avoiding Iridium Supply Limitations." ECS Meeting Abstracts MA2023-01, no. 36 (2023): 2044. http://dx.doi.org/10.1149/ma2023-01362044mtgabs.

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Proton exchange membrane water electrolysis (PEMWE) is projected to become a key technology to enable the decarbonisation of ‘hard to abate’ sectors of the economy. However, the technology’s reliance on iridium, one of the scarcest elements on Earth, as an oxygen evolution reaction catalyst, has led to uncertainty over whether a large-scale PEMWE industry can be realised. This work investigates the future iridium demand of the global PEMWE sector and examines how different catalyst strategies can improve iridium utilisation in the anode catalyst. Iridium utilisation targets necessary to avoid
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Okuwada, Kumi, Ken-ichi Yoshida, Tomoko Saitou, and Atsuhito Sawabe. "Epitaxial growth at PZT/Ir interface." Journal of Materials Research 15, no. 12 (2000): 2667–71. http://dx.doi.org/10.1557/jmr.2000.0383.

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Surface oxidation of an iridium film and the possibility of epitaxial growth of PZT spin-coated film on sputtered iridium were investigated. The free surface on the iridium film oxidized over 400 °C with random orientation. Nevertheless, both the PZT(111)/Ir(111) and PZT(100)/Ir(100) interfaces were realized using the highly oriented iridium layer. These results suggest that PZT nucleation has priority over iridium surface oxidation.
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Zhang, Jifu, Dongchu Chen, Xueying Zhang, Ben Niu, Biao Wang, and Runxia Li. "Deposition of Iridium Coating on Pure Tungsten and High-Temperature Oxidation Behavior at 1300 K." Coatings 12, no. 11 (2022): 1761. http://dx.doi.org/10.3390/coatings12111761.

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Iridium (Ir) coating was electrodeposited on tungsten (W) substrate for resistance to high-temperature oxidation. The reduction of iridium was studied using an electrochemical cyclic voltammetry (CV) measurement technique. The structure characterization and performance testing were carried out by scanning electron microscope (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and a high-temperature oxidation test. The results showed that the reduction of tetravalent iridium ions to metallic iridium included three reduction steps. The deposited iridium coating
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EISENBERG, RICHARD. "IRIDIUM." Chemical & Engineering News 81, no. 36 (2003): 148. http://dx.doi.org/10.1021/cen-v081n036.p148.

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Housecroft, Catherine E. "Iridium." Coordination Chemistry Reviews 115 (June 1992): 163–89. http://dx.doi.org/10.1016/0010-8545(92)80040-x.

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Housecroft, Catherine E. "Iridium." Coordination Chemistry Reviews 131 (March 1994): 177–210. http://dx.doi.org/10.1016/0010-8545(94)80095-2.

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Ohriner, E. K. "Processing of Iridium and Iridium Alloys." Platinum Metals Review 52, no. 3 (2008): 186–97. http://dx.doi.org/10.1595/147106708x333827.

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Collins, L. "Iridium reborn [Iridium satellite communication network]." Engineering & Technology 5, no. 2 (2010): 64–65. http://dx.doi.org/10.1049/et.2010.0215.

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Huang, Rui, and Yong Hong Zhang. "Application of Iridium Communication in Marine Environment Monitoring." Advanced Materials Research 518-523 (May 2012): 1459–63. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.1459.

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Firstly, the Iridium system and SBD (Short Burst Data) service is introduced. Secondly, the marine environment monitoring system is designed based on Iridium SBD. Finally, the realization of the Iridium SBD transmission subsystem is provided. The main function of the system is to obtain the collected data by the underwater sensor. The information will be uploaded to local control center by iridium communication after fixed time. At the same time the sensor should receive commands from local control center by iridium communication.
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Dissertations / Theses on the topic "Iridium"

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Sackville, Emma. "Molecular iridium oxidation catalysts." Thesis, University of Bath, 2018. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.767567.

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Oxidation reactions of both inorganic and organic substrates are among the most important chemical transformations, with application in sustainable chemistry and chemical synthesis. A library of half sandwich IrIII oxidation complexes with varying ligands were synthesised (54-78% yield) and fully characterised (NMR, UV-vis, crystal data), in order to investigate the effect on catalyst activity for water and C-H oxidation reactions. The electrochemical transition of IrIII to IrIV was investigated (cyclic voltammetry (CV)) and found to vary between ligand sets, such that alkyl substituted compou
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Liu, Zhe. "Organometallic iridium anticancer complexes." Thesis, University of Warwick, 2011. http://wrap.warwick.ac.uk/52292/.

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Cisplatin has been used to treat various types of cancers for over 30 years, however, a number of serious side-effects of cisplatin have stimulated the quest for other metal-based anticancer agents. Iridium complexes are generally thought to be too inert to possess high reactivity, and therefore, there are only a few previous reports of the antitumour activity of iridium complexes. In this thesis a wide range of organometallic IrIII cyclopentadienyl complexes of the type [(η5-Cpx)Ir(XY)Cl]0/+ (where Cpx = pentamethylcyclopentadienyl (Cp*), tetramethyl(phenyl)cyclopentadienyl (Cpxph) or tetrame
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Schrems, Marcus Georg. "Iridium-katalysierte Hydrierung unfunktionalisierter Olefine /." [S.l.] : [s.n.], 2009. http://edoc.unibas.ch/diss/DissB_8847.

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Hedley, Gordon J. "Ultrafast photophysics of iridium complexes." Thesis, University of St Andrews, 2010. http://hdl.handle.net/10023/1981.

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This thesis presents ultrafast photophysical measurements on a number of phosphorescent iridium complexes and establishes relationships between the relaxation rates and the vibrational properties of the material. When ultrafast luminescence is measured on the peak of the phosphorescence spectrum and on its red-side, 230 fs and 3 ps decay time constants were observed in all materials studied, and this was attributed to population redistribution amongst the three electronic substates of the lowest triplet metal-ligand charge transfer (MLCT) state. The observation of luminescence at higher values
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Pang, Hon-fung, and 彭漢鋒. "Laser spectroscopy of iridium compounds." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B41508683.

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Torgerson, Leigh, Joseph Hutcherson, and James McKelvey. "TCP PERFORMANCE ENHANCEMENT OVER IRIDIUM." International Foundation for Telemetering, 2007. http://hdl.handle.net/10150/604499.

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ITC/USA 2007 Conference Proceedings / The Forty-Third Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2007 / Riviera Hotel & Convention Center, Las Vegas, Nevada<br>In support of iNET maturation, NASA-JPL has collaborated with NASA-Dryden to develop, test and demonstrate an over-the-horizon vehicle-to-ground networking capability, using Iridium as the vehicle-to-ground communications link for relaying critical vehicle telemetry. To ensure reliability concerns are met, the Space Communications Protocol Standards (SCPS) transport protocol was investigated f
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Pang, Hon-fung. "Laser spectroscopy of iridium compounds." Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B41508683.

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Chavanne, Anthony. "Heteroepitaxie du diamant sur iridium." Versailles-St Quentin en Yvelines, 2010. http://www.theses.fr/2011VERS0014.

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L’objectif principal de ce travail de thèse concerne la réalisation de films de diamant mosaïque épitaxié sur iridium en mettant en œuvre la nucléation assistée par polarisation. Ce travail s’est donc concentré sur trois axes: (i) Le développement de conditions conduisant à l’hétéroépitaxie du diamant sur l’iridium à partir d'un porte-échantillon spécifique. Deux modes de nucléation ont alors été obtenus, le premier par cristaux isolés, le deuxième par formation de domaines. Ce deuxième mode de nucléation spécifique à l’iridium se différencie par une croissance de diamant non observable par le
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Mohammad, Hani Ali Yasin. "Iridium-PCP pincer complexes C-H oxidative addition reactions and functionalisation = Iridium-PCP-Pincer-Komplexe /." [S.l. : s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=965171310.

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Šušnjar, Nevena. "Towards rhodium and iridium oxo complexes." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=979943604.

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Books on the topic "Iridium"

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Luxton, Steve. Iridium. DC Books, 1993.

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Andersson, Pher G., ed. Iridium Catalysis. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-15334-1.

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Fukui, Chieko, and Maemi Ono. Iridium: Occurrence, characteristics, and applications. Nova Science Publishers, 2011.

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Oro, Luis A., and Carmen Claver, eds. Iridium Catalysts for Organic Reactions. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69083-0.

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International, SICIS. Iridium mosaic: Collection n. 1. SICIS, 2000.

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Jobson, Simon. Iron-57 and Iridium-193 Mossbauer studies of supported iron-iridium Fischer-Tropsch catalysts. University of Birmingham, 1990.

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K, Ohriner Evan, Minerals, Metals and Materials Society. Meeting, Minerals, Metals and Materials Society. Structural Materials Division, and International Symposium on Iridium (2000 : Nashville, Tenn.), eds. Iridium: Proceedings of the international symposium : held during the 2000 TMS Annual Meeting in Nashville, Tennessee, March 12-16, 2000. TMS, 2000.

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M, Kazaroff John, Appel Marshall A, and United States. National Aeronautics and Space Administration., eds. Iridium-coated rhenium thrusters by CVD. National Aeronautics and Space Administration, 1988.

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A, Biaglow James, Schneider Steven J, and United States. National Aeronautics and Space Administration., eds. Iridium-coated rhenium radiation-cooled rockets. National Aeronautics and Space Administration, 1997.

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A, Biaglow James, Schneider Steven J, and United States. National Aeronautics and Space Administration., eds. Iridium-coated rhenium radiation-cooled rockets. National Aeronautics and Space Administration, 1997.

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Book chapters on the topic "Iridium"

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Kurtz, Wolfgang, and Hans Vanecek. "Iridium." In W Tungsten. Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-662-08690-2_33.

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Meisel, Thomas C. "Iridium." In Encyclopedia of Earth Sciences Series. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-39193-9_259-1.

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Meisel, Thomas C. "Iridium." In Encyclopedia of Earth Sciences Series. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-39312-4_259.

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Claeys, Philippe. "Iridium." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-27833-4_808-3.

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Turova, Nataliya. "Iridium." In Inorganic Chemistry in Tables. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-20487-6_41.

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Claeys, Philippe. "Iridium." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-44185-5_808.

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Brookins, Douglas G. "Iridium." In Eh-pH Diagrams for Geochemistry. Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-73093-1_35.

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Shabalin, Igor L. "Iridium." In Ultra-High Temperature Materials I. Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-007-7587-9_9.

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Claeys, Phillippe. "Iridium." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-11274-4_808.

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Claeys, Philippe. "Iridium." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2023. http://dx.doi.org/10.1007/978-3-662-65093-6_808.

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Conference papers on the topic "Iridium"

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Zhao, Yuan, Yangyang Liu, Lei Lei, Guanbo Chen, Zesheng Dan, and Chengkai Tang. "Collaborative Positioning Technology Based on Iridium/UWB." In 2024 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC). IEEE, 2024. https://doi.org/10.1109/icspcc62635.2024.10770463.

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Li, Liuan, Shi Fang, Wei Chen, et al. "Demonstration of Photoelectrochemical Photodetector with High Responsivity and Large Bandwidth for Optical Wireless Communication." In CLEO: Applications and Technology. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_at.2024.jth2a.35.

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Response speed and responsivity are crucial for photodetectors. GaN nanowires were used to construct fast-response photoelectrochemical photodetectors. Iridium-oxide decoration improved the responsivity and response speed with a demonstration of large-bandwidth optical communication.
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Çınaroğlu, Buğra, and Ahmet Serbes. "Doppler Frequency Estimation and Tracking of Iridium NEXT Satellites." In 2024 15th National Conference on Electrical and Electronics Engineering (ELECO). IEEE, 2024. https://doi.org/10.1109/eleco64362.2024.10847073.

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Kosek, Maggie, Babis Koniaris, David Sinclair, et al. "IRIDiuM+." In SIGGRAPH '17: Special Interest Group on Computer Graphics and Interactive Techniques Conference. ACM, 2017. http://dx.doi.org/10.1145/3089269.3089277.

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Koniaris, Babis, Ivan Huerta, Maggie Kosek, et al. "IRIDiuM." In SIGGRAPH '16: Special Interest Group on Computer Graphics and Interactive Techniques Conference. ACM, 2016. http://dx.doi.org/10.1145/2929490.2929496.

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"iridium® everywhere: Iridium update ICNS." In 2015 Integrated Communication, Navigation and Surveillance Conference (ICNS). IEEE, 2015. http://dx.doi.org/10.1109/icnsurv.2015.7121377.

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Allick, Kristoffer Jonathan. "Iridium system." In 2022 Academic High Altitude Conference. Iowa State University Digital Press, 2022. http://dx.doi.org/10.31274/ahac.15628.

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Brimley, Scott, Mark S. Miller, and Mark Hagmann. "2.3: Field emission in air between iridium-iridium oxide diode tips." In 2010 23rd International Vacuum Nanoelectronics Conference (IVNC). IEEE, 2010. http://dx.doi.org/10.1109/ivnc.2010.5563224.

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Bloch, M., J. Ho, O. Mancini, and T. McClelland. "Iridium-next master clock." In 2012 European Frequency and Time Forum (EFTF). IEEE, 2012. http://dx.doi.org/10.1109/eftf.2012.6502378.

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Bharath Kumar, N. G., and Omid Nia. "Iridium Based Agronomical System." In 2024 IEEE World AI IoT Congress (AIIoT). IEEE, 2024. http://dx.doi.org/10.1109/aiiot61789.2024.10579037.

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Reports on the topic "Iridium"

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Tarlov, M., K. Kreider, S. Semancik, and P. Huang. pH sensors based on iridium oxide. Office of Scientific and Technical Information (OSTI), 1990. http://dx.doi.org/10.2172/7154189.

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Rundberg, Robert S. Iridium an Important Neutron Flux Monitor. Office of Scientific and Technical Information (OSTI), 2019. http://dx.doi.org/10.2172/1498020.

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Hewson, John. On the dissolution of iridium by aluminum. Office of Scientific and Technical Information (OSTI), 2009. http://dx.doi.org/10.2172/1145167.

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Ohriner, E. K. Iridium-alloy processing experience in FY 1989. Office of Scientific and Technical Information (OSTI), 1990. http://dx.doi.org/10.2172/6414265.

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Ohriner, E. K. Iridium-alloy processing experience in FY 1990. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/5740945.

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Walpole, Leticia M. Saved by Iridium? An Alternative to GPS. Defense Technical Information Center, 2012. http://dx.doi.org/10.21236/ada566639.

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Ohriner, E. K. Iridium-alloy processing experience in FY 1990. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/10132484.

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Falco, Charles M. Growth and Structure of MBE-Deposited Iridium Silicide. Defense Technical Information Center, 1996. http://dx.doi.org/10.21236/ada326192.

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Schneibel, J. H., R. G. Miller, C. A. Carmichael, E. E. Fox, G. B. Ulrich, and E. P. George. High Strain Rate Testing of Welded DOP-26 Iridium. Office of Scientific and Technical Information (OSTI), 2017. http://dx.doi.org/10.2172/1376443.

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Schneibel, Joachim H., Cecil Albert Carmichael, Jr, and Easo P. George. High Strain Rate Tensile Testing of DOP-26 Iridium. Office of Scientific and Technical Information (OSTI), 2007. http://dx.doi.org/10.2172/932063.

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