Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Angelus G.P. Silva"'
Autor:
Marco A. Morales, Rafael A. Raimundo, Daniel A. Macedo, Uilame Umbelino Gomes, Cleber S. Lourenço, Franciné Alves Costa, Kaio V.A. Santos, Angelus G.P. Silva
Publikováno v:
Ceramics International. 47:677-685
Al2O3-10 wt% Co composites were prepared by high energy milling in the presence of ethyl alcohol and with subsequent spark plasma sintering (SPS). The powders milled for 5 and 30 h were sintered by SPS at 1350 °C for 5 min. The effect of milling tim
Autor:
Marco A. Morales, Rafael A. Raimundo, Angelus G.P. Silva, Uilame Umbelino Gomes, Franciné Alves Costa
Publikováno v:
International Journal of Refractory Metals and Hard Materials. 90:105223
A mixture of Cu-20wt%WC was milled in a high energy mill for up to 50 h. The WC powder was recycled from hard metal scrap. It presents agglomerates of faceted WC particles and residual Co and Fe. In the first hours of milling, the Cu particles are de
Publikováno v:
International Journal of Refractory Metals and Hard Materials. 11:43-47
This paper presents powder metallurgical developments of NbTa compounds at varied concentrations obtained by aluminothermic reduction of the oxides. These powders have low production costs. Processing data are presented as well as the behavior of the
Publikováno v:
International Journal of Environment and Waste Management. 2:625
In Brazil, the growth of the petroleum industry has resulted in an increasing amount of toxic oily wastes that have a high environmental impact. This work analyses the possibility of recovering waste from the petroleum industry using the powder techn