Results 41 to 50 of about 18,747 (211)

Polvos de Al-Al3Ti obtenidos mediante aleado mecánico y tratamiento térmico

Revista de Metalurgia, 2005
Polvos mezclados de aluminio y titanio (10 % en peso) han sido aleados mecánicamente en un molino Attritor, obteniéndose una solución metaestable de titanio en la matriz de aluminio.
F. G. Cuevas, J. M. Montes, J. Cintas, J. M. Gallardo   +3 more
doaj   +1 more source

Modelo geometalúrgico para la exploración de recursos minerales

Revista del Instituto de Investigación de la Facultad de Minas, Metalurgia y Ciencias Geográficas, 2022
Esta investigación tiene como objetivo desarrollar un modelo geometalúrgico para la exploración minera integrando la información geológica, geoquímica y metalúrgica de una zona con potencial minero ubicada en la provincia de Imbabura al NW del Ecuador ...
Miguel Ángel Álvarez Castillo, Daniel Florencio Lovera Dávila   +1 more
doaj   +1 more source

Synergistic Effects of Entropy Tuning in Niobium‐Based Oxide Anode for Fast‐Charging Lithium‐Ion Batteries

Advanced Functional Materials, Volume 36, Issue 5, 15 January 2026.
An entropy‐tuned niobium‐based oxide (ETNO) anode for fast‐charging lithium‐ion batteries are presented, engineered via multi‐cation doping. The synergistic effects of entropy tuning result in excellent rate capability and long‐term durability under ultrafast charging conditions.
Yoojin Ahn, Xueyu Hu, Yong Ding, Chanho Kim, Yi‐Chen Wu, Taewoo Kim, Meilin Liu   +6 more
wiley   +1 more source

Effect of Processing History on the Microstructure and Magnetic Properties of Ultra-Low Carbon Si + Sb Non-Oriented Electrical Steels

Solids
In this work, different processing routes were investigated to evaluate the effects of hot rolling temperature, annealing before cold rolling (ABCR), and one- or two-stage cold rolling and annealing schedules to obtain more efficient electrical steels ...
Fernando Hernández-Navarro, Armando Salinas-Rodríguez, Rogelio Deaquino-Lara, Javier Aguilar-Carrillo, Iván A. Reyes-Domínguez, Lizangela Guerra-Fuentes, Ma. de J. Soria-Aguilar, Francisco R. Carrillo-Pedroza, Josefina García-Guerra, Verónica E. Salazar-Muñoz, Emmanuel J. Gutiérrez-Castañeda   +10 more
doaj   +1 more source

Understanding the Role of Nb Doping in Modulating Ionic Diffusion Kinetics and Particle Size in Spinel LiMn2O4

Battery Energy, Volume 5, Issue 1, January 2026.
Niobium (Nb) incorporation into spinel LiMn2O4 achieves simultaneous enhancement of ionic diffusion kinetics and particle size. After Nb doping, the overall surface energy decreases, promoting particle growth. Despite the increased particle size, the introduction of niobium significantly improves the rate capability and effectively mitigates ...
Junda Li, Xiaoxia Yang, Jiayong Chen, Guanjie Yan, Bo Wang, Ruimin Qin, Chunliu Li, Yaqiong Su, Zhongzhu Liu, Luanna Silveira Parreira, Robson S. Monteiro, Laijun Liu, Leidang Zhou, Weibo Hua   +13 more
wiley   +1 more source

Hornos de reducción de cobre y bronce en la Pre y Protohistoria de la Península Ibérica

Trabajos de Prehistoria, 1996
En este trabajo se presentan las características principales de los hornos de reducción de minerales de cobre y estaño, cotejadas por vez primera con el estudio analítico de restos metalúrgicos hallados en la Península Ibérica desde el Calcolítico hasta ...
Pablo Gómez Ramos
doaj   +1 more source

Niobium‐Based Surface Engineering Enables High Rate and Cycling Stability of High‐Voltage LiNi0.5Mn1.5O4 Cathode

ChemElectroChem, Volume 13, Issue 2, January 2026.
A scalable sol–gel‐assisted strategy is developed to construct a uniform niobium‐based surface coating on high‐voltage LiNi0.5Mn1.5O4 (LNMO) cathodes. The conformal Nb‐rich layer acts as a chemically robust and ionically conductive interphase that suppresses electrolyte oxidation, mitigates Ni/Mn dissolution, and stabilizes the cathode‐electrolyte ...
Jiaqi Ke, Jordan Gatts, Yuan Tan, Boyu Wang, Robson Monteiro, Prayag Biswal, Laisuo Su   +6 more
wiley   +1 more source

Conjunto de metales procedente del poblado de la Edad del Bronce de L’arbocer (Font de la Figuera, Valencia)

Trabajos de Prehistoria, 2005
Presentamos un conjunto de piezas de metal, de cobre y bronce, halladas de manera casual en el poblado de la Edad del Bronce de L’Arbocer, en la Font de la Figuera, Valencia.
Pablo García Borja, María Jesús de Pedro Michó, Ángel Sánchez Molina   +2 more
doaj   +1 more source

Freeze‐cast porous alumina tubes for membrane applications: Role of niobium pentoxide in microstructure and gas transport properties

Journal of the American Ceramic Society, Volume 109, Issue 1, January 2026.
Freeze‐cast alumina tubes doped with Nb2O5 exhibit aligned and hierarchical porosity, enabling high gas permeance. Nb2O5 promotes liquid‐phase sintering and formation of the AlNbO4 secondary phase, enhancing mechanical strength. The resulting porous supports are suitable for membrane‐based gas separation applications.
Priscila Cristh Fonseca Alves, Débora Guimarães da Silva, Jéssica de Oliveira Notório Ribeiro, Darley Carrijo de Melo, Leonardo dos Santos Pereira, Wander Luiz Vasconcelos   +5 more
wiley   +1 more source

Engenharia de Materiais e Metalurgia - Materiais metálicos [PDF]

, 2013
Engenharia de Materiais e Metalurgia - Materiais metá ...
Adriano Michael Bernardin, Organizador
core   +1 more source