Titanium nitride, plasma synthesis

Fig. 8.1.3 Rcaclor chamber designed for powder processing studies (1) torch head. (2) three concentric quart/ lubes. (3) work coil, (4) water-cooled Pyrex cylinder. (5) water-cooled copper quenching plate. (6) window, (7) to generator, (8) water in, (9) water out. (10) to exhaust system. (Reprinted front J Mater Sci, 65. The synthesis of ultrafine titanium nitride in an r.f. plasma. Copyright 1979. with kind permission from Kluwer Academic Publishers.)...

These results also support the theoretical explanation of the synthesis of titanium nitride and aluminum nitride given above. They show that metal chlorides can be decomposed and metals deposited in the intense low pressure plasma under similar conditions as those employed for the synthesis of nitrides. The interpretation of the experimental results given in Ref.33 can now be considered as the initial step in the development of the ideas presented in this review (see also30 ). 

Although the synthesis of nanooxides particles is well known (sol-gel or hydrothermal processes), the synthesis of carbide or nitride nanoceramics with a plasma torch is much more complicated, the main challenges being the control of the process (hydrodynamic flows) and the control of the chemical composition of the end products after the plasma reaction. At the present time, some products such as titanium zinc and cesium nanooxides are already used for health-care applications (dry skin cream, UV-blocking cream, anti-wrinkle cream) or polishing slurries. 

Synthesis of Nitrides of Titanium and Other Elements by Plasma-Chemical Conversion of Their Chlorides... 

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