3 documents found, page 1 of 1
Investigation of the Effect of Milling Time on Elemental Powders of Oxi-Reducti...
Teixeira, Rodolfo da Silva; Gurgel, Mônica Aline Magalhães; Rodrigues, Patricia Freitas; Freitas, Bruno Xavier de; Le Sénéchal, Naiara; Oliveira, R. V.ABSTRACT: Mechanical alloying (MA) is widely applied in the synthesis of blended elemental or prealloyed powders. This work evaluates the effect of milling time on elemental nickel and titanium powders produced by oxi-reduction and the hydrogenation-dehydrogenation process, respectively. The powders are characterized by scanning electron microscopy, X-ray diffraction, particle size, powder yield, and differenti...
Microwave versus Conventional Sintering of NiTi Alloys Processed by Mechanical ...
Teixeira, Rodolfo da Silva; Oliveira, R. V.; Rodrigues, Patricia Freitas; Mascarenhas, João; Neves, Filipe; Paula, Andersan dos SantosABSTRACT: The present study shows a comparison between two sintering processes, microwave and conventional sintering, for the manufacture of NiTi porous specimens starting from powder mixtures of nickel and titanium hydrogenation-dehydrogenation (HDH) milled by mechanical alloying for a short time (25 min). The samples were sintered at 850 degrees C for 15 min and 120 min, respectively. Both samples exhibited p...
Microwave versus Conventional Sintering of NiTi Alloys Processed by Mechanical ...
Teixeira, Rodolfo da Silva; Oliveira, R. V.; Rodrigues, Patricia Freitas; Mascarenhas, João; Neves, Filipe; Paula, Andersan dos SantosABSTRACT: The present study shows a comparison between two sintering processes, microwave and conventional sintering, for the manufacture of NiTi porous specimens starting from powder mixtures of nickel and titanium hydrogenation-dehydrogenation (HDH) milled by mechanical alloying for a short time (25 min). The samples were sintered at 850 degrees C for 15 min and 120 min, respectively. Both samples exhibited p...