The Journal of Thermal Spray Technology® publishes contributions on all aspects—fundamental and practical—of thermal spray science including processes, feedstock manufacture, testing, and characterization. As the primary vehicle for thermal spray information transfer, its mission is to synergize the rapidly advancing thermal spray industry and related industries by presenting research and development efforts leading to advancements in implementable engineering applications of the technology. Editorial Office ASM International Materials Park, OH 44073-0002 USA TEL: 440/338-5151, ext. 5710 FAX: 440/338-8542 Contact the Editor-in-Chief: E-MAIL: christian.moreau@cnrc-nrc.gc.ca Office of Publication Springer, 233 Spring Street, New York, NY 10013, USA. 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Periodicals postage paid at New York, New York and additional mailing offices. Postmaster: Send address changes to Journal of Thermal Spray Technology, Springer, 233 Spring Street, New York, NY 10013, USA. Printed in the United States on acid-free paper. © 2011 ASM International. All rights reserved. ASM International® benefits the materials community by providing scientific, engineering and technical knowledge, education, networking and professional development. Journal of Thermal Spray Technology ISSN: 1059-9630 Contents Editorial Basil R. Marple, Arvind Agarwal, Margaret M. Hyland, Yuk-Chiu Lau, Chang-Jiu Li, Rogerio S. Lima, and Ghislain Montavon ..........................................................1 Peer Reviewed Improving Powder Injection in Plasma Spraying by Optical Diagnostics of the Plasma and Particle Characterization Georg Mauer, Robert Vaßen, Detlev Stöver, Stefan Kirner, José-Luis Marqués, Stephan Zimmermann, Günter Forster, and Jochen Schein.....................................................................3 Velocity Diagnostics for Gas Velocity Distributions in Cold Gas and Plasma Spraying Using Non-Resonant Laser Scattering Sebastian Lange, Marco Sieber, Günter Forster, José Luis Marqués-López, Jochen Schein, and Christian J. Kähler....................................................................................12 Modeling of the Plasma Flow and Anode Region Inside a Direct Current Plasma Gun Rodolphe Bolot, Christian Coddet, Alain Allimant, and Dominique Billières .......................21 Improvement of Plasma Spray Torch Stability by Controlling Pressure and Voltage Dynamic Coupling V. Rat and J. F. Coudert............................................................................................................28 Predicting the Thermal Conductivity of AlSi/Polyester Abradable Coatings: Effects of the Numerical Method Rodolphe Bolot, Jean-Louis Seichepine, Jiang Hao Qiao, and Christian Coddet.........................39 Effect of Substrate Temperature and Ambient Pressure on Heat Transfer at Interface Between Molten Droplet and Substrate Surface M. Fukumoto, K. Yang, K. Tanaka, T. Usami, T. Yasui, and M. Yamada...............................48 Flattening and Cooling of Millimeter- and Micrometer-Sized Alumina Drops S. Goutier, M. Vardelle, J. C. Labbe, and P. Fauchais .............................................................59 Influence of the Surface State on the Adherence of the Coating: Case of an Alumina Coating Plasma Sprayed on SiC Composites S. Costil, S. Lukat, C. Verdy, and C. Coddet...........................................................................68 Relationships Between Process Parameters, Microstructure, and Adhesion Strength of HVOF Sprayed IN718 Coatings Christophe Lyphout, Per Nylén, and Lars Östergren...............................................................76 Phase Composition and Microstructural Responses of Graded Mullite/YSZ Coatings Under Water Vapor Environments E. Garcia, J. Mesquita-Guimarães, P. Miranzo, M. I. Osendi, C. V. Cojocaru, Y. Wang, C. Moreau, and R. S. Lima ......................................................................................83 Elastic Modulus Evolution and Behavior of Si/Mullite/BSAS-Based Environmental Barrier Coatings Exposed to High Temperature in Water Vapor Environment C. V. Cojocaru, S. E. Kruger, C. Moreau, and R. S. Lima ......................................................92 Mechanical Behavior of Air Plasma-Sprayed YSZ Functionally Graded Mullite Coatings Investigated via Instrumented Indentation C. V. Cojocaru, Y. Wang, C. Moreau, R. S. Lima, J. Mesquita-Guimarães, E. Garcia, P. Miranzo, and M. I. Osendi ................................................................................100 Next Generation Thermal Barrier Coatings for the Gas Turbine Industry Nicholas Curry, Nicolaie Markocsan, Xin-Hai Li, Aurélien Tricoire, and Mitch Dorfman.........108 Cover photo: SEM micrographs depicting cold sprayed titanium coating cross-sections and the corresponding coating top views produced with N2. (a, d) 30 bar / 300°C at 608 m/s, (b, e) 40 bar / 800°C at 805 m/s, and with He (c, f) 40 bar / 350°C at 1173 m/s. (Photographer: Michel Thibodeau.) For more information, see the article entitled “Influence of Helium and Nitrogen Gases on the Properties of Cold Gas Dynamic Sprayed Pure Titanium Coatings”, by Wilson Wong, Eric Irissou, Anatoly N. Ryabinin, Jean-Gabriel Legoux, and Stephen Yue, pp. 213–226 in this issue. Volume 20(1–2) January 2011 Columnar-Structured Thermal Barrier Coatings (TBCs) by Thin Film Low-Pressure Plasma Spraying (LPPS-TF) Andreas Hospach, Georg Mauer, Robert Vaßen, and Detlev Stöver .....................................116 Effect of Chemical Compositions and Surface Morphologies of MCrAlY Coating on Its Isothermal Oxidation Behavior Yong Li, Chang-Jiu Li, Qiang Zhang, Lu-Kuo Xing, and Guan-Jun Yang...........................121 The Oxidation Behavior of TBC with Cold Spray CoNiCrAlY Bond Coat W. R. Chen, E. Irissou, X. Wu, J.-G. Legoux, and B. R. Marple ..........................................132 High Temperature Mechanical Behavior of UHTC Coatings for Thermal Protection of Re-Entry Vehicles G. Pulci, M. Tului, J. Tirillò, F. Marra, S. Lionetti, and T. Valente.......................................139 Preparation of Nanocomposite GDC/LSCF Cathode Material for IT-SOFC by Induction Plasma Spraying Yan Shen, Veronica Alexandra B. Almeida, and François Gitzhofer ....................................145 The Structure and Properties of Plasma Sprayed Iron Oxide Doped Manganese Cobalt Oxide Spinel Coatings for SOFC Metallic Interconnectors Jouni Puranen, Juha Lagerbom, Leo Hyvärinen, Mikko Kylmälahti, Olli Himanen, Mikko Pihlatie, Jari Kiviaho, and Petri Vuoristo...........................................154 Influence of Deposition Temperature on the Microstructures and Properties of Plasma-Sprayed Al2O3 Coatings Shun Hao, Chang-Jiu Li, and Guan-Jun Yang .......................................................................160 Structural, Mechanical and Erosion Properties of Yttrium Oxide Coatings by Axial Suspension Plasma Spraying for Electronics Applications Junya Kitamura, Zhaolin Tang, Hiroaki Mizuno, Kazuto Sato, and Alan Burgess.......................170 Design of Experiment Analysis of the Sulzer Metco DJ High Velocity Oxy-Fuel Coating of Hydroxyapatite for Orthopedic Applications S. Hasan and J. Stokes ...........................................................................................................186 Comparative Study of the Electrical Properties and Characteristics of Thermally Sprayed Alumina and Spinel Coatings Filofteia-Laura Toma, Stefan Scheitz, Lutz-Michael Berger, Viktar Sauchuk, Mihails Kusnezoff, and Sven Thiele ...................................................................................................195 Influence of NH4Cl Powder Addition for Fabrication of Aluminum Nitride Coating in Reactive Atmospheric Plasma Spray Process Mohammed Shahien, Motohiro Yamada, Toshiaki Yasui, and Masahiro Fukumoto......................205 Influence of Helium and Nitrogen Gases on the Properties of Cold Gas Dynamic Sprayed Pure Titanium Coatings Wilson Wong, Eric Irissou, Anatoly N. Ryabinin, Jean-Gabriel Legoux, and Stephen Yue ......213 Characterization of High-Temperature Abrasive Wear of Cold-Sprayed FeAl Intermetallic Compound Coating Chang-Jiu Li, Hong-Tao Wang, Guan-Jun Yang, and Chong-Gao Bao ................................227 Influence of Impact Angle and Gas Temperature on Mechanical Properties of Titanium Cold Spray Deposits K. Binder, J. Gottschalk, M. Kollenda, F. Gärtner, and T. Klassen .......................................234 Influence of Pre-Heated Al 6061 Substrate Temperature on the Residual Stresses of Multipass Al Coatings Deposited by Cold Spray Silvano Rech, Andrea Trentin, Simone Vezzù, Jean-Gabriel Legoux, Eric Irissou, and Mario Guagliano.....................................................................................................................243 Investigation of Impact Behavior of Cold-Sprayed Large Annealed Copper Particles and Characterization of Coatings Wenya Li, Xueping Guo, Min Yu, Hanlin Liao, and Christian Coddet.................................252 Corrosion Behavior of Cold Sprayed Titanium Coatings and Free Standing Deposits T. Hussain, D. G. McCartney, P. H. Shipway, and T. Marrocco............................................260 Consolidation of Al2O3/Al Nanocomposite Powder by Cold Spray Dominique Poirier, Jean-Gabriel Legoux, Robin A. L. Drew, and Raynald Gauvin ......................275 Effect of Ceramic Particle Velocity on Cold Spray Deposition of Metal-Ceramic Coatings A. Sova, V. F. Kosarev, A. Papyrin, and I. Smurov ...............................................................285 Formation of Cold-Sprayed Ceramic Titanium Dioxide Layers on Metal Surfaces J.-O. Kliemann, H. Gutzmann, F. Gärtner, H. Hübner, C. Borchers, and T. Klassen ......................292 Metallization of Thin Al2O3 Layers in Power Electronics Using Cold Gas Spraying Kerstin-Raffaela Donner, Frank Gaertner, and Thomas Klassen...........................................299 Effect of Using Liquid Feedstock in a High Pressure Cold Spray Nozzle E. Farvardin, O. Stier, V. Lüthen, and A. Dolatabadi ............................................................307 Analysis of the Mechanical Properties of an Arc Sprayed WC-FeCSiMn Coating: Compression, Bending, and Tension Behavior W. Tillmann and J. Nebel.......................................................................................................317 Volume 20(1–2) January 2011 Journal of Thermal Spray Technology Analysis of the Mechanical Properties of an Arc-Sprayed WC-FeCSiMn Coating: Nanoindentation and Simulation W. Tillmann, B. Klusemann, J. Nebel, and B. Svendsen.......................................................328 Microstructures of Metallic NiCrBSi Coatings Manufactured via Hybrid Plasma Spray and In Situ Laser Remelting Process Nicolas Serres, Françoise Hlawka, Sophie Costil, Cécile Langlade, and Frédérique Machi..........336 Microstructure and Electrochemical Behavior of Fe-Based Amorphous Metallic Coatings Fabricated by Atmospheric Plasma Spraying Z. Zhou, L. Wang, D. Y. He, F. C. Wang, and Y. B. Liu .......................................................344 Characteristics of Cu Film Deposited Using VLPPS N. Zhang, F. Sun, L. Zhu, C. Verdy, M. P. Planche, H. Liao, C. Dong, and C. Coddet........351 Thermophysical and Microstructural Studies on Thermally Sprayed Tungsten Carbide-Cobalt Coatings Sven Thiele, Kerstin Sempf, Klaus Jaenicke-Roessler, Lutz-Michael Berger, and Jörg Spatzier ....................................................................................................................358 Structure and Tribological Characteristics of HVOF Coatings Sprayed from Powder Blends of Cr3C2-25NiCr and NiCrBSi Alloy A. Määttä, U. Kanerva, and P. Vuoristo.................................................................................366 Improved Hardfacing for Drill Bits and Drilling Tools Albert Sue, Harry Sreshta, and Bao He Qiu ..........................................................................372 Instructions for Authors Back of issue A publication of the Thermal Spray Society, an affiliate society of ASM International® Editor-in-Chief Christian Moreau Lead Editor Basil Marple Associate Editors Kendall Hollis Seiji Kuroda Armelle Vardelle Editor Emeritus Christopher C. Berndt Published by Springer Science+Business Media, LLC ASM Staff Manager, Technical Journals Mary Anne Fleming Manager, Production Bonnie Sanders Editorial Committee Robert C. Tucker, Chair, The Tucker Group LLC Robert Vassen, Vice Chair, Forschungszentrum Juelich GmbH Christopher C. Berndt, Past Chair, Swinburne University of Technology Christian Moreau, Editor-in-Chief, National Research Council Canada Rehan Ahmed, Heriot-Watt University Christian Coddet, Universite De Technologie De Belfort Masahiro Fukumoto, Toyohashi University of Technology Joachim V.R. Heberlein, University of Minnesota Kendall Hollis, Los Alamos National Laboratory Bertrand Jodoin, University of Ottawa Seiji Kuroda, National Institute for Materials Science Y.C. Lau, GE Energy Chang-Jiu Li, Xian Jiaotong University Nicolaie Markocsan, University West Basil Marple, Industrial Materials Institute, National Research Council Canada Jiri Matejicek, Institute of Plasma Physics ASCR Robert Miller, Deloro Stellite Montia C. Nestler, Sulzer Metco Roland D. Seals, BWXT Y-12 National Security Complex Mark F. Smith, Sandia National Laboratories Armelle Vardelle, University of Limoges/ENSIL Petri Vuoristo, Tampere University of Technology International Board of Review T.W. 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