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Esteban P.G.,Gordo E.,Ruiz-Navas E.M. 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1
The present work studies the influence of high-energy milling (HEM) and sintering cycle of Ti and Al powders on the obtainment of TiAl. This study shows that HEM modifies the diffusion processes during the sintering stage. The samples were obtained by cold uniaxial and isostatic pressing, pre-sintered at different temperatures, and heated up to the sintering temperature. This study also shows the effect of powder additions processed by HEM on the sintering behavior of elemental Ti and Al powders.
Study of Compaction and Ejection of Hydrided-Dehydrided Titanium Powder
P. G. Esteban,Y. Thomas,E. Baril,E. M. Ruiz-Navas,E. Gordo 대한금속·재료학회 2011 METALS AND MATERIALS International Vol.17 No.1
Three similar varieties of pure Ti hydride-dehydried (HDH) powders were tested for the understanding of the variables that have an influence on the compaction process of Ti powders. The study shows that small differences in the characteristics of the powders lead to very different behaviours in the compaction stage. Compressibility curves, friction with the die walls and ejection forces are discussed in this study. The results are compared with a commercial iron powder as a reference to complete the discussion, as well as to show the enhancements and modifications that should be performed in Ti powders to design an optimized powder suitable for being pressed in an industrial process.