Electrochemical vapor deposition process

Figure 3.1. Schematic of the various stages of pore narrowing and closure by the chemical vapor deposition/electrochemical vapor deposition process [Adapted from Lin etal., 1989]...

Electrochemical systems, 9 606 in industrial processes, 9 615 Electrochemical techniques, for spectrally selective surfaces, 23 12-13 Electrochemical Technology Business electrolysis cells, 9 668-669 Electrochemical transducer, 3 408 Electrochemical vapor deposition (EVD), 72 225... 

L.L. Raja, R.J. Kee, R. Serban, and L.R. Petzold. A Computational Algorithm for Dynamic Optimization of Chemical Vapor Deposition Processes in Stagnation Flow Reactors. J. Electrochem. Soc., 147 2718-2726,2000. 

Thin films and coatings can be fabricated by vapor deposition [i.e., chemical vapor deposition (CVD) and electrochemical vapor deposition (EVD)], sputtering, sol-gel processing, and electrophoretic depositionElectrochemical vapor deposition, a thin-film technique, is used to form thin ( 40 pm) layers of dense yttria-stabilized zirconia in the seal-less tubular solid oxide fuel celP ". Thin layers of stabilized zirconia are required in this application to keep the internal resistance and the operating temperature of the electrochemical device as low as possible. 

To the list there needs to be added the very important contribution to the conversion of natural inorganic materials to useful metals by electrochemical means. Aluminium, magnesium, copper, sodium, and lithium are among the metals obtained by electrowinning. Add to this the many metals applied to solid - usually metal - surfaces by electroplating. Until the more recent vapor deposition processes, electroplating competed only with hot dipping as the means to produce duplex systems. 

The electrochemical vapor deposition (EVD) process has been successfully developed as fabricating a dense electrolyte film on porous cathodes and fixing anode nickel particles on the electrolyte plate with YSZ. This provides a nearly ideal microstmcture for electrolyte/electrode interfaces. 

Raja LL, Kee RJ, Serban R, Petzold LR Computational algorithm for dynamic optimization of chemical vapor deposition processes in stagnation flow reactors, J Electrochem Soc 147 2718-2726, 2000. 

Adopting an excellent processing technology of electrochemical vapor deposition (EVD) [2] that has extraordinary advantages in fabricating dense films on porous materials or in anchoring nickel on YSZ. 

The stack design and its fabrication process are quite important in developing the SOFC systems. For the case of the first-generation SOFCs, selection of materials was accompanied by adoption of the electrochemical vapor deposition technique and the sealless tubular design. For the intermediate-temperature SOFCs, utilization of metals is a key in selecting the fabrication technique and the design. Typical designs are as follows ... 

Reactions involving solids are very important in many technologies such as microelectronics processing, ceramics, ore refining, electrochemical deposition and etching, chemical vapor deposition and etching, and food processing. We will consider some of these applications in problems, but we first note several important examples. 

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