PDF Publication Title:
Text from PDF Page: 077
CHAPTER 6 FRABRICATION OF PROTECTIVE COATINGS BY SOL-GEL BASED METHOD Chapter 6 Fabrication of Protective Coatings by Sol-Gel Based Method The sol-gel based method is a relatively simple way to fabricate coatings, which has been widely used for producing metal oxide coatings. Compared with EB-PVD or APS method, the cost of sol-gel method is much cheaper and it does not need an evacuated working environment which is needed for EB-PVD method. Figure 6.1 is the schematic image of the sol-gel based method. It shows that the precursor stays in liquid phase in the beginning, and the elements inside of precursor polymerize through internal chemical reactions. With further polymerization, the viscosity is increased and the morphology turns from a liquid solution to a jelly-like gel. Parameters for controlling the gelation time are really complicated which is related to volume, concentration, temperature and other factors. In general, coating deposition is carried out when the precursor is close to gelation because higher viscosity of the precursor allows the deposition of thicker coating. Sol-gel based dip coating and spray coating of YSZ and Al2O3 have been carried out in this research. Page 76PDF Image | Volcanic Ash Degradation on Thermal Barrier Coatings
PDF Search Title:
Volcanic Ash Degradation on Thermal Barrier CoatingsOriginal File Name Searched:
vocanic-ash-degradation.pdfDIY PDF Search: Google It | Yahoo | Bing
Sulfur Deposition on Carbon Nanofibers using Supercritical CO2 Sulfur Deposition on Carbon Nanofibers using Supercritical CO2. Gamma sulfur also known as mother of pearl sulfur and nacreous sulfur... More Info
CO2 Organic Rankine Cycle Experimenter Platform The supercritical CO2 phase change system is both a heat pump and organic rankine cycle which can be used for those purposes and as a supercritical extractor for advanced subcritical and supercritical extraction technology. Uses include producing nanoparticles, precious metal CO2 extraction, lithium battery recycling, and other applications... More Info
| CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP |