Carbonitriding applications

Bonetti, R. S., et al., CVD of Titanium Carbonitride atModerate Temperature Properties and Applications, Metal Powder... 

Molybdenum carbide is also used in TiC—Ni-based alloys and in titanium carbonitride-based cermets for metal-cutting applications. 

Carbides and nitrides based on the transition metals of Groups 4 through 6 of the Periodic Table have a number of special physical and mechanical properties that make them attractive for use in engineering applications. This paper discusses these properties and how they are exploited in cemented carbides and carbonitrides used in metalcutting and nonmetalcutting applications. 

Another amorphous phase of carbonitride, C N phase with sp bonding, was shown to be a stable phase which exhibits high electrical resistivity and thermal conductivity similar to that of diamond-like films. The diamond-like properties and non-diamond-like bonding make C N an attractive candidate for applications such as thermal management in high-performance microelectronics. 

The field of application for GDOES is very broad and includes surface treatment studies of samples prepared by different techniques such as galvanization, nitriding, carbonitriding, carburization, diffusion, chemical and thermochemical treatments, thermic treatments, PVD and CVD coating, electrodeposition, painting, and semiconductor multilayer growth. 

Tables I and 2 give a short overview of the properties important for technical applications of the most well characterized and important binary transition metal carbides and nitrides. Some specific properties which cannot easily be listed in a table, as well as the properties of transition metals carbonitrides) especially those of the most commonly used group ivb carbonitrides) are described in detail later.

Carbonitride powders for industrial applications are prepared by mixing carbide and nitride powders intimately together and heating the mixtures to high temperatures,... 

For an extensive review on the elastic properties ( and v) of transition metal nitrides, carbonitrides (and carbides) as well as on the porosity correction routines the reader is referred to the tables given in [92]. Upon application and development of high-temperature investigation techniques, such as Brillouin scattering [95,96] a... 

There is a widespread field of applications of transition metal carbides, nitrides and carbonitrides. The most important applications are ... 

The latest patent applications try to obtain more fine grained microstructures outside the known compositions Al203/TiC or Al203/Ti(C,N). An alumina composite with 25% (by weight) of a mixed carbide/carbonitride consisting of about 90% Ti(C,N) and 10% WC was hot pressed at 1600°C yielding a microstructure with... 

Most of the developments in cemented borides aim at the high wear resistance due to the superior hardness compared to carbide-based hard metals. One of the most important applications are, therefore, the cutting tools where cemented boride have to compete with tungsten carbide, titanium carbonitride, and ceramic materials as well. 

A cermet is a composite material composed of ceramic particles including titanium carbide (TiC), titanium nitride (TiN), and titanium carbonitride (TiCN) bonded with metal. The name cermet combines the words ceramic (cer) and metal (met). They are most successfully used for finishing and light roughing applications. 

E. B. Claric and B. Roebuck, Extending the application areas for titanium carbonitride cermets. Refr. Met. Hard Mat. 11,23 (1992)... 

S. Zhang, Material development of titanium carbonitride-based cermets for machining application. 

In this chapter, first we summarized the investigations about nitrides and carbonitrides as cathode catalysts. Second, the stability of nitrides, carbonitrides, and oxides in acid electrolyte was discussed and introduced the applicability of oxides to support of platinum particles. Then, the necessity of modifications of oxides was described. As mentioned above, the modifications of oxides were classified into four ways, and development of oxide-based cathodes was summarized. 

Refractory carbides and nitrides are useful materials with numerous industrial applications and a promising future, in addition to being materials of great interest to the scientific community. Although most of their applications are recent, the refractory carbides and nitrides have been known for over one hundred years. Titanium and tungsten carbides were extracted from steel and properly identified around the middle of the nineteenth century. In 1890, E. G. Acheson produced the first silicon carbide, trademarked Carborundum, and by 1900 the French chemist Moissan had s)mthesized most other refractory carbides in his electric arc-furnace. Titanium carbonitride was first described in 1822 and identified by chemical analysis in 1850. Additional notes of historical interest will be presented in the relevant chapters. 

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