3D Printing Metal Powder

TiC Sintering and Its Effect on the Thermal Stability of Poly(BA-A) Resin

2022-12-26 16:14:12  News

Titanium carbide (TiC) is a promising heat receiver material with excellent emissivity and high thermal conductivity. Its high melting point allows for efficient absorption of heat from a wide spectrum of sunlight. However, TiC is also prone to deformation during milling, and its porosity is relatively low. Therefore, it is important to understand the influence of TiC on the thermal stability of poly(BA-a) resin. In this study, the sintering process of TiC and its influence on the thermal stability of the poly(BA-a) resin were studied.

The density of the composites increased with an increase in the TiC content. The maximum density was achieved with a TiC composite with 4 wt. % of TiC. Moreover, the hardness value increased with an increase in the TiC content.

The crystalline structure of TiC is like that of rock salt. Ti4+ bonds to six equivalent C4- atoms to form edge-sharing octahedra. Aside from TiC, simple carbides include HfC and VC. Refractory carbides are resistant to attack by most alkalis and acids.

However, reactivity with nitrogen occurs at high temperatures. Therefore, a mixed crystal component is often used in certain grades of cemented carbide.

A graded coating of TiC/Mo with low thermal stress was developed by using the double-gun plasma spray technique. This coating shows excellent corrosion resistance, as well as high specific strength and abrasion resistance.

Furthermore, TiC particles can improve the hardness of Cu matrix composites. This is demonstrated by X-ray diffraction analysis. At the same time, the interfacial bonding energy between the two phases increases.