The topic of this book is Cold Spray technology. Cold Spray is a process of applying coatings by exposing a metallic or dielectric substrate to a high velocity (300 to 1200 m/s) jet of small (1 to 50 µm) particles accelerated by a supersonic jet of compressed gas. This process is based on the selection of the combination of particle temperature, velocity, and size that allows spraying at the lowest temperature possible. In the Cold Spray process, powder particles are accelerated by the supersonic gas jet at a temperature that is always lower than the melting point of the material, resulting in coating formation from particles in the solid state. As a consequence, the deleterious effects of high-temperature oxidation, evaporation, melting, crystallization, residual stresses, gas release, and other common problems for traditional thermal spray methods are minimized or eliminated.
This book is the first of its kind on the Cold Spray process. Cold Spray Technology covers a wide spectrum of various aspects of the Cold Spray technology, including gas-dynamics, physics of interaction of high-speed solid particles with a substrate as well as equipment, technologies, and applications. Cold Spray Technology includes the results of more than 20 years of original studies (1984-2005) conducted at the Institute of Theoretical and Applied Mechanics of the Siberian Division of the Russian Academy of Science, as well as the results of studies conducted at most of the research centres around the world.
The authors' goal is threefold. The first goal is to explain basic principles and advantages of the Cold Spray process. The second goal is, to give practical information on technologies and equipment. The third goal is to present the current state of research and development in this field over the world.
The book provides coverage and data that will be of interest for users of Cold Spray technology a

Key Features

- New approach to spray coatings - Results are exceptionally pure coatings - Low spray temperature without degradation of powder and substrate materials - High productivity, high deposition efficiency - High operational safety because of absence of high temperature gas jets, radiation and explosive gases. - Excellent thermal and electrical conductivity - Wide spectrum of applications because of important advantages of the process


The book is a research monograph, and it is suitable for specialists working in the field of Material Science, in particular, applying coatings for various applications. The book provides coverage and data that will be of interest for users of Cold Spray and Thermal Spray technologies as well as for other coating experts. The book can be useful for the broad reading public, in particular, for engineers, scientists, technicians, and postgraduate students who are interested in studies of advanced technologies, gas dynamics of supersonic two-phase flows and physics of high speed collision of the particles with the target.

Table of Contents

Preface Chapter I - Discovery of the cold spray phenomenon and its basic features 1.1 Supersonic two-phase flow around bodies and discovery of the Cold Spray phenomenon 1.2 Spraying with a jet incoming onto a target Chapter II - High-velocity interaction of particles with the substrate. Experiment and modeling 2.1 Deformation of microparticles in a high-velocity impact 2.2 Spraying of the Initial later and its influence on the coating formation process 2.3 Modeling of interaction of single particles with the substrate within the framework of continuous media 2.4 Formation of a layer of a high-velocity flow in the vicinity of the micro particle-solid substrate contact plane 2.5 Particle-surface interaction under an impact 2.6 Numerical simulation of self-organization processes during the particle-surface impact by the molecular dynamics method Chapter III Gas-dynamic of Cold Spray 3.1 Flow in a supersonic nozzle with a large aspect ratio and a rectangular cross section 3.2 Investigation of supersonic air jets exhausting from a nozzle 3.3 Impact of supersonic jet on a substrate 3.4 Heat transfer between a supersonic plane jet and a substrate under conditions of Cold Spray 3.5 Optimization of geometric parameters of the nozzle for obtaining the maximum impact velocity Chapter IV Cold Spray equipment and technologies 4.1 Equipment and technologies developed by ITAM SB RAS (Russia) 4.2 Equipment and technologies developed by Ktech Corporation (USA) 4.3 Cold Gas System kinetic 3000 developed by Cold Gas Technology (Germany) 4.4 Low Pressure Portable Cold Spray System Chapter V. Current State of Cold Spr


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© 2007
Elsevier Science
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About the authors

Anatolii Papyrin

Prof. A.N. Papyrin is a specialist in gas-dynamics, combustion in high-speed two-phase flows, and new technologies based on the Cold Spray process. He is one of the inventors of the Cold Spray process and for the last twenty years he has performed extensive research in this field leading to advancing the Cold Spray for a broad diffusion to commercial markets. He has over 160 papers, 6 books, and 12 patents.

Vladimir Kosarev

Dr.Sc. V.F. Kosarev is a specialist in gas-dynamics and new technologies based on the Cold Spray process. He is one of the inventors of Cold Spray process. For the last twenty years he has carried out studies allowing to optimize the Cold Spray process and equipment and to develop various technologies. He has over 85 papers, 4 books, and 15 patents.

Sergey Klinkov

Dr. S.V. Klinkov is an expert in gas dynamics of heterogeneous flows. His contribution in the book is modelling of high speed interaction of solid particles with a substrate as well as gas-dynamic processes taking place under Cold Spraying. He is an author and co-author of over 30 papers and 1 book in field of Cold Spray.

Anatolii Alkhimov

Prof. A.P. Alkhimov is an expert in physical and chemical mechanics of high-speed heterogeneous flows, new technologies, and optic methods of diagnostics. He is one of the inventors of Cold Spray process and he developed various technologies in the field of Cold Spray. He has over 165 papers, 4 books and 18 patents.

Vasily Fomin

Prof. V.M. Fomin is a specialist in mathematical modelling in continuum mechanics. His scientific activity is connected with physics-mathematics modelling of the processes of high-speed collision of bodies. In the field of Cold Spray he has performed extensive research related to gas-dynamics and study of high speed particles impact. He is the author and co-author of more than 250 scientific publications, 7 monographs, and 6 patents.