Nanostructured TiC&lt;sub&gt;1-X&lt;/sub&gt; - TiB&lt;sub&gt;2&lt;/sub&gt; Composites Obtained by Metastability Processing

Adrian, Isabel Cristina Atias; Vallauri, Dario; Zhang, Z; Chrysanthou, A.; Benedetti, Bruno; Amato, I.

doi:10.4028/0-87849-429-4.225

Cited by 1 publication

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2. The calculated lattice parameter a of cubic TiC 1-x crystals is a = 4.3215 Å and corresponds to a TiC 0.7 composition [5], as expected from the tailored SHS reaction stoichiometry.…”

Section: Resultssupporting

confidence: 57%

“…In this paper, the results obtained on the synthesis of TiC-TiB 2 powders through a novel processing route based on the metastability as key concept is reported. The process is described in detail in [5] and combines the SHS synthesis of TiC-TiB 2 powders with approximately eutectic composition with a rapid cooling of the products by quench. The necessary condition is that the combustion temperature of the SHS reaction is higher than the melting point of the eutectic composition of the TiC-TiB 2 system (2620°C [6]).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Nanocomposite TiC-TiB<sub>2</sub> Powders by SHS through Metastability Approach

Vallauri

López

DeBenedetti

et al. 2006

Advances in Science and Technology

View full text Add to dashboard Cite

The aim of this work is the achievement of nanostructured TiC–TiB2 powders through a metastability approach based on the Self–propagating High–temperature Synthesis (SHS) process followed by quench to obtain highly metastable powder agglomerates. An optimisation of the reaction stoichiometry was carried out in order to obtain products with approximately eutectic composition (i.e. 67%mol TiC – 33%mol TiB2). An optimized amount of sodium borate was used as gasifying additive to produce dispersed nanostructured powder agglomerates. The metastability of the nanocomposite powders obtained through the (SHS+quench) route was evaluated by annealing. The morphological evolution of the powders after thermal treatment yielded a recrystallisation with limited grain growth of the nanostructured TiC–TiB2 phases and demonstrated the metastability of the products obtained by the (SHS+quench) route.

show abstract

“…2. The calculated lattice parameter a of cubic TiC 1-x crystals is a = 4.3215 Å and corresponds to a TiC 0.7 composition [5], as expected from the tailored SHS reaction stoichiometry.…”

Section: Resultssupporting

confidence: 57%

Section: Introductionmentioning

confidence: 99%