Results 41 to 50 of about 7,560 (179)
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 +13 more
wiley +1 more source
SolidsIn 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 +10 more
doaj +1 more source
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 +6 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
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 +5 more
wiley +1 more source
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 +2 more
doaj +1 more source
BioMed Research International, Volume 2026, Issue 1, 2026.Objectives To evaluate the in vitro cytocompatibility and osteogenic potential and the in vivo biocompatibility of two experimental endodontic cements based on Portland cement combined with either Nb2O5 (F6) and/or bismuth oxide (F7) in a rat subcutaneous implantation model. Methods For the in vitro study, MC3T3‐E1 preosteoblastic cells were exposed to
Raphael Victor Silva Andrade +14 more
wiley +1 more source
Las espadas en lengua de carpa - aspectos morfológicos, metalúrgicos y culturales
Trabajos de Prehistoria, 2010 Se presentan los resultados de un análisis de la dispersión geográfica de los distintos subgrupos morfológicos de las espadas en lengua de carpa a nivel europeo, poniéndolas en relación con una marcada variabilidad en la composición metalúrgica de estas ...
Dirk Brandherm +1 more
doaj +1 more source
Carbon Energy, Volume 7, Issue 11, November 2025.This study demonstrates that site‐specific Nb⁵⁺ doping at the Li sites in argyrodite significantly enhances electrochemical stability with lithium metal, enabling ultra‐fast charging (10 C, 6 min) in all‐solid‐state batteries. The improved interfacial stability, rather than ionic conductivity, is key to high‐power performance.
Yongsun Park +14 more
wiley +1 more source
Trabajos de Prehistoria, 2013 El objetivo de este trabajo es ofrecer una síntesis de la investigación arqueológica y arqueominera realizada entre 1998 y 2000-2002 en el Cerro de San Cristóbal de Logrosán (Cáceres).
Alonso Rodríguez Díaz +5 more
doaj +1 more source