Structural evolution of TiH2–B4C during ball milling and subsequent heat treatment

<ji>In Situ</i> Synthesis of Titanium Matrix Composite (Ti-TiB-TiC) through Sintering of TiH<sub>2</sub>-B<sub>4</sub>C

“…This is most probably connected with kinetic reasons. According to the literature the reaction of Ti with B 4 C take place above 800˚C [14], 900˚C [15] or occurs only at 1093˚C (DTA analysis) [16]. However, the kinetics can be strongly influenced by the grain size of the components as is normally the case for solid state reactions.…”

in situ Fabrication of Fe-TiB2 Nanocomposite Powder by Planetary Ball Milling and Subsequent Heat-treatment of FeB and TiH2 Powder Mixture

“…Commercial iron boride powder with 19 wt% boron (Table 1), and TiH2 powder (laboratory type, 99.8%), were used as starting materials. Table 2 shows the results from the particle size analysis, where the mean particle size of TiH2 and FeB According to other reports [15,16], brittle TiH2 can be easily milled to nanoscale by high-energy milling for a very short period of time and can be decomposed into Ti during milling, while also brittle but tougher FeB than TiH2 may retain its particle size and act as secondary milling medium beside WC balls to enhance the decrease of the TiH2 particle size, but the particle size of FeB changed slowly. However, the EDS maps for Fe-and Ti-element indicate that each of initial starting powders are homogeneously mixed after milling for 60 min (Fig.…”

Preparation of TiB2-TiC Intermetallic Phase via Mechanical Alloying

“…TiC-TiB2 have attracted enormous interest during recent years because, in comparison to single phase ceramics, they exhibit superior properties including high hardness, good wear resistance and high fracture toughness. Therefore, the composites that combine TiB2 and TiC offer an attractive combination of excellent mechanical and electrical properties as well as corrosion resistance, particularly at relatively high temperatures and/or in corrosive environments [10]. It has been shown that the fracture toughness and wear resistance of TiB2-TiC composites are significantly higher than those of TiC and TiB2 single phase materials [1,7].The potential applications for TiB2-TiC could be jet engine parts, material of coating,armor plates and cutting tools, etc.…”

“…It has been shown that the fracture toughness and wear resistance of TiB2-TiC composites are significantly higher than those of TiC and TiB2 single phase materials [1,7].The potential applications for TiB2-TiC could be jet engine parts, material of coating,armor plates and cutting tools, etc. In addition, the high electrical and thermal conductivities of TiB2 and TiC make TiB2-TiC composites be attractive for functional applications in high performing electrical systems [10].TiB-TiC have engineering practical value but, it is difficult to formulate composites featuring both ceramics by conventional methods-liquid phase sintering [11], reactive sintering [12], reactive hot pressing (RHP) [13], Transient Plastic Phase Processing (TPPP) [6,14], Self-propagating high-temperature synthesis (SHS ) [9,15].…”