In Situ Synthesis of TiC-TiB2 Composites via High Energy Ball Milling and Pressureless Sintering

Ping Luo; Shi Jie Dong; Zhi Xiong Xie; Wei Yang; An Zhuo Yangli

doi:10.4028/www.scientific.net/AMM.401-403.635

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 401-403In Situ Synthesis of TiC-TiB2 Composites via High...

In Situ Synthesis of TiC-TiB2 Composites via High Energy Ball Milling and Pressureless Sintering

Abstract:

TiC-TiB2 composite ceramics were successfully fabricated via planetary ball milling of 72 mass% Ti and 28 mass % B4C powders, followed by low temperature sintering process at 1200°C. The microstructure of the ball-milled powder mixtures and composite ceramics were characterized by Differential thermal analysis equipment (DTA), field emission scanning electron microscopy (FESEM) and X-ray diffraction (XRD). The results showed that the ball-milled powder mixtures (Ti and B4C powders) were completely transformed to TiC-TiB2 composite ceramics as the powders were milled for 60 h and sintered at 1200°C for 1 h. The formation mechanism of the TiC-TiB2 composite was discussed. The high energy ball milling and necessary sintering for the powder mixtures plays an important role in the formation of the composites.

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Periodical:

Applied Mechanics and Materials (Volumes 401-403)

Pages:

635-638

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.401-403.635

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Online since:

September 2013

Authors:

Ping Luo, Shi Jie Dong, Zhi Xiong Xie, Wei Yang, An Zhuo Yangli

Keywords:

Composite, Mechanical Alloying, Microstructure, TiC-TiB2

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