Titanium carbide properties

Table 10. Composition and Properties of Steel Grades of Cemented Titanium Carbide ...

Zirconium carbide is a highly refractory compound with excellent properties but, unlike titanium carbide, it has found only limited industrial importance except as coating for atomic-fuel particles (thoria and urania) for nuclear-fission power plants.l " ] This lack of applications may be due to its high price and difficulty in obtaining it free of impurities. 

Ti02 particles, the benzene-thermal reaction of TiCLi. and NaN3, chemical vapor reactions, plasma syntheses, or arc-melting [15-20], The optical properties of low-concentrated TiN nanoparticle systems were studied by Quinten [21], Highly dispersed TiN was used as an additive to improve the mechanical properties of titanium carbide-based cermets [22],... 

Kecskes, L. Kottke, T., and Niiler, A., Microstructural properties of combustion-synthesized and dynamically consolidated titanium boride and titanium carbide. J. Am. Ceram. Soc., 73, 1274 (1990). 

The most important metallic hard materials, as regards quantity, are tungsten carbide, WC, and titanium carbide, TiC with a production worldwide in 1995 of 20 10- t/a and 3.5 10 t/a respectively. Also worthy of mention is the 1.5 10 t/a of titanium carbonitride, Ti(C,N), produced in 1995, which is used as the hardening component in the cermet sector. Other metallic hard materials are produced in quantities below that of titanium carbide. In individual cases they can be very important as components of alloys in the realization of particular material properties. 

Class 4 The carbides of this class do not possess the extreme properties of the interstitial carbides. For example, whereas titanium carbide is not attacked by water or HQ even at 600°C, these carbides are decomposed by dilute acids (Fe3C and NisC) or even water (Mn3C). Although the carbon is present as discrete C atoms the products include, in addition to hydrogen, complex mixtures of hydrocarbons. 

The second method of surface modification permits the formation of a composite particle, the core of which is composed of polymer (UHMWPE or polyimide) and the surface of which is coated with titanium carbide which is hard and abrasion resistant. The composite particles can be incorporated into any suitable matrix resulting in improved abrasion resistance, lowered fiiction, higher compressive strength, improved creep resistance, etc. This new product is a unique form of raw material which has the potential to improve the properties of many products. 

Interstitial carbides, which are interstitial compounds of carbon with transition metals. Titanium carbide (TiC) is an example. These compounds are all hard high-melting solids, with metallic properties. Some carbides (e.g. nickel carbide... 

A large number of important ceramics adopt the halite (NaCl, Bl) structure (Section 5.3.9). These include the oxides magnesium oxide (MgO) and nickel oxide (NiO) and many carbides and nitrides with a formula MX, such as titanium carbide (TiC) and titanium nitride (TiN). The oxides are often considered as ionic solids. The carbides and nitrides have metallic properties. 

These carbides also have similar properties and characteristics. Of the three, titanium carbide has been more investigated and is the most important from an application standpoint. It is produced industrially on a large scale in the form of powders, molded shapes, and thin films. The... 

The characteristics and properties of titanium carbide are summarized in Table 4.7. 

Table4.7 Sununary of Characteristics and Properties of Titanium Carbide. Note Test temperature is 20 C unless otherwise stated.

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