NewIn-situ synthesis method of magnesium matrix composites reinforced with TiC particulates

Abstract

Magnesium matrix composites reinforced with TiC particulates was prepared using a new in-situ synthesis method of remelting and dilution technique. And measurements were performed on the composites. The results of x ray diffraction (XRD) analysis confirmed that TiC particulates were synthesized during the sintering process, and they retained in magnesium matrix composites after the remelting and dilution processing. From the microstructure characterization and electron probe microanalysis (EPMA), we could see that fine TiC particulates distributed uniformly in the matrix material

Composites Produced by SHS Method – Current Development and Future Trends

“…Many of pressure techniques are explored like: hot-pressing HPSHS and hot-isostatic-pressing HIPSHS [7,8]; quasi-isostaticpressing using sand media SHSPHIP [9]; reactive forging RFSHS [10]; explosive (dynamic) compaction DCSHS [11]; or gravity assistant processes using centrifuge devices [12]. In some systems intensive densification during sintering with formed molten phase gave positive results in dense materials [13]. Another approach for getting dense composites utilizes reactive green mixtures to start SHS combustion under non-pressing special sintering treatment like: plasma and thermal spraying PS [14], spark plasma sintering SPS [15] or laser sintering [16].…”

Processing and Microstructure of Magnesium <i>In Situ</i> Composite with Titanium and Boron Based Reinforcement

“…These ex-situ synthesised metal matrix composites (MMCs) have some limitations in mechanical properties; because of two main reasons such as the presence of large size reinforcement and the relatively weak interface between magnesium matrix and reinforcements. Moreover, the in-situ synthesised composites have many advantages of having fine reinforcements, clean interface between matrix and reinforcement and good mechanical properties [2].…”