Nanostructured ceramic coatings

Toma, F.L., Berger, L.M., Naumann, T., and Langner, S. (2008) Microstructure of nanostructured ceramic coatings obtained by suspension thermal spraying. Surf. 

Another area in which preceramic polymers can be utilized effectively is as binders for ceramic powders in near net shaping fabrication processes, such as compression or injection molding with subsequent sintering. Alternatively, an active filler and a polymer [67,68], as reported by Greil and Seibold, can be used in such fabrication. Other potential applications of preceramic polymers is in the general area of coatings, especially for carbon-carbon composites [69], and in the synthesis of nanostructured ceramic particles and composites [70-73]. 

Kashima T, Matsuda Y, Fujiyama H (1991) Development of the quadrupole plasma chemical vapour deposition method for low temperature, high speed coating on an optical fibre. Mater Sci Eng A 139 79-84 Kaya C, He JY, Gu X, Butler EG (2002) Nanostructured ceramic powders by hydrothermal synthesis and their applications. Microporous Mesoporous Mater 54 37-49... 

Firstly it can be used for obtaining layers with a thickness of several mono-layers to introduce and to distribute uniformly very low amounts of admixtures. This may be important for the surface of sorption and catalytic, polymeric, metal, composition and other materials. Secondly, the production of relatively thick layers, on the order of tens of nm. In this case a thickness of nanolayers is controlled with an accuracy of one monolayer. This can be important in the optimization of layer composition and thickness (for example when kernel pigments and fillers are produced). Thirdly the ML method can be used to influence the matrix surface and nanolayer phase transformation in core-shell systems. It can be used for example for intensification of chemical solid reactions, and in sintering of ceramic powders. Fourthly, the ML method can be used for the formation of multicomponent mono- and nanolayers to create surface nanostructures with uniformly varied thicknesses (for example optical applications), or with synergistic properties (for example flame retardants), or with a combination of various functions (polyfunctional coatings). Nanoelectronics can also utilize multicomponent mono- and nanolayers. 

Colomban, R, Stress- and nanostructure-imaging of ceramic fibers and abradable thermal barrier coatings by Raman micro spectrometry—state of the art and perspectives, Rroceedings of the 24th Annual Cocoa Beach Conference and Exposition, Cocoa Beach, Florida, Jan. 23-28, 2000, T. lessen and E. Ustundag, Eds., Ceram. Eng. Sci. Proc., 21, 143, 2000. 

Nanostructured coatings, ceramics and metals - tailor die strocture of coatings at the nano-scale to provide unique and revohitionaty properties, specifically nano-structured adaptive tribological (low fiiction) coatings for MEMS devices economical, multifunctional ceramic materials to which operate in extreme environments new material concepts and design tools to inqiact mechanics issues important to airframes. 

---