Rapid synthesis of TiB2/Fe composite in situ by spark plasma sintering
Metal matrix composites (MMCs) with steel matrix and ceramic particle reinforcements are candidates for structural applications in wear-resistant materials [1, 2, 3]. Conventional production route, such as powder metallurgy (PM), often involves the addition of the reinforcing phases into the metal matrix directly, which could lead to poor wetting behavior between ceramic phase and metal matrix and segregation of reinforcements. Moreover, it is expensive and time consuming to produce MMCs by conventional PM route. Recently, in situ technique has been developed to produce ceramic particle reinforced MMCs. For the in situ technique, reinforcements are formed in situ by the chemical reaction between elements or their compounds during the fabrication process. Compared with the ex situ route, in situ process has advantages such as uniform distribution of reinforcement, finer reinforcement particle size, clear interface and thermodynamically stable reinforcement in the MMCs.
KeywordsSpark Plasma Sinter Milled Powder TiB2 Particle Spark Plasma Sinter Process Spark Plasma Sinter Technique
- 14.Matthews FL, Rawlings R (1994) Composite materials: engineering and science. Chapman & Hall, UkGoogle Scholar