Pressure-less and current-activated pressure-assisted sintering of titanium dual matrix composites: Effect of reinforcement particle size

Autor:	A. El-Desouky, V. V. Patel, Javier E. Garay, Khaled Morsi
Rok vydání:	2009
Předmět:	Materials science Consolidation (soil) Mechanical Engineering Whiskers Sintering chemistry.chemical_element Condensed Matter Physics Microstructure chemistry.chemical_compound chemistry Mechanics of Materials Boride General Materials Science Particle size Composite material Reinforcement Titanium
Zdroj:	Materials Science and Engineering: A. 507:161-166
ISSN:	0921-5093
DOI:	10.1016/j.msea.2008.11.046
Popis:	This paper investigates a microstructural design that can allow the tailorability of the properties of titanium–titanium boride composites. A powder processing sequence is used to allow the in situ growth of TiB whiskers in localized regions (of controlled size) of the microstructure leaving predominantly ductile titanium in between these reinforced regions. Both current-activated pressure-assisted sintering (CAPAS) and pressure-less sintering were used as high temperature consolidation processes for the powders. Superior composites in terms of consolidation, hardness and reaction completion were produced using CAPAS as opposed to pressure-less sintering. For CAPAS processed materials, the size of the reinforced regions had a significant effect on the hardness of the composites, with values ranging from 652 to 777 VHN (a 19% difference).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::adade478ed63f4a3b894d92ead9bbadc https://doi.org/10.1016/j.msea.2008.11.046 Zobrazit plný text záznamu Full Text from ScienceDirect