Powder technology spray pyrolysis

The liquid solution CCVD process does not deposit droplets (these evaporate in the flame environment) or powders as in traditional thermal spray processes. The CCVD technology is drastically different from spray pyrolysis In spray pyrolysis, a liquid mixture is sprayed onto a heated substrate, while CCVD atomizes a precursor solution into sub-micron droplets followed by vaporization of said droplets. The resulting coating capabilities and properties described hereafter qualifies CCVD as a true vapor deposition process. For example, depositions are not line-of-sight limited and achieve epitaxy, 10 nm dielectric coatings onto silicon wafers in a Class 100 clean room resulted... 

Taniguchi, I., and Bakenov, Z. 2005. Spray pyrolysis synthesis of nanostructured LiFe, Mn2/),i cathode materials for lithium-ion batteries. Powder Technology 159, 55-62. 

M. Eslamian and N. Ashgriz The effect of pressure on the crystallinity and morphology of powders prepared by spray pyrolysis. Powder Technology, 167, 149-159 (2006). 

The technique of flame spray pyrolysis (FSP) is one of the technologies from this list, tested for gas sensor design (Madler et al. 2006a, b Liu et al. 2005b). It should be noted that FSP is a well-known method which is widely applied for the industrial production of powders. One can understand the nature of this method of synthesis from its name. One can find a detailed description of FSP technology in several published papers (Pratsinis 1998 Madler et al. 2002,2006b Tricoli et al. 2010 Strobel and Pratsinis 2007). Usually the FSP apparams involves the scheme shown in Fig. 20.25. 

---