Results 51 to 60 of about 7,560 (179)
Enhancing Stability of Microwave‐Synthesized Cs2SnxTi1‐xBr6 Perovskite by Cation Mixing
ChemSusChem, Volume 18, Issue 9, May 5, 2025.This research introduces a microwave radiation synthesis technique for synthesizing Cs2SnxTi1‐xBr6 lead‐free double perovskite powders. By incorporating Sn4+ cations, the stability of the material is improved, particularly at elevated temperatures and outside conditions.
Emmanuel Reyes‐Francis +9 more
wiley +1 more source
Trabajos de Prehistoria, 1995 La colonización fenicia durante los siglos VIII y VI a.C. se concibe como una forma de comercio a larga distancia y de intercambio desigual con ulteriores implicaciones en el cambio social -pero no cultural- de las comunidades campesinas de la Edad del ...
Carlos G. Wagner
doaj +1 more source
steel research international, Volume 96, Issue 3, March 2025.A laboratory‐scale hot‐rolled Ti–Mo–V–Nb steel with 1 GPa tensile strength is produced, and its microstructure and tensile properties are characterized using advanced analysis techniques and tensile testing. A Gleeble 3800 thermomechanical simulator is used to determine a process window. Results show significant differences in mechanical properties and
Olli Nousiainen +4 more
wiley +1 more source
Trabajos de Prehistoria, 2013 El ajuar funerario de la necrópolis de Palhais (Primera Edad del Hierro) ofrece una oportunidad única para estudiar la introducción de la metalurgia orientalizante en el sur de Portugal.
Pedro Valério +4 more
doaj +1 more source
Facile In Situ Formation of Potassium Sodium Niobate (KNN) Using The Hexaniobate Polyoxometalate
Chemistry – A European Journal, Volume 31, Issue 12, February 25, 2025.Lead‐based piezoceramics are the dominant materials used in electronic devices, despite the known toxicity of lead. Developing safer piezoelectric materials has inspired the pursuit of lead‐free piezoceramics, however some challenges remain in accessing these materials reproducibly.
Mark A. Rambaran +3 more
wiley +1 more source
Revista de Metalurgia, 1998 Se estudia la posibilidad de eliminar la impureza de plomo de la pirolusita de Ímini (Marruecos). El material se somete a un proceso mineralúrgico que permite separar seis fracciones basándose en su diferente densidad y comportamiento electromagnético ...
I. Gómez-Pinilla +2 more
doaj +1 more source
Ph.D. Publication Requirement and Its Effects on Research Productivity Trends in Kazakhstan
Higher Education Quarterly, Volume 79, Issue 1, January 2025.ABSTRACT The growing pressure to ‘publish or perish’, experienced by academia around the world, has pushed an increasing number of individual graduate programmes and universities, as well as entire higher education systems, to introduce a publication requirement as a prerequisite for the conferral of doctoral degrees.
Aliya Kuzhabekova
wiley +1 more source
Los candiles cerámicos como indicadores de la minería medieval andalusí en Sierra de Lújar (Granada)
Espacio, Tiempo y Forma. Serie I, Prehistoria y Arqueología, 2017 En este trabajo presentamos un conjunto de candiles cerámicos inéditos procedentes de diversos yacimientos de un mismo entorno. Procedentes de la prospección superficial nos proponemos, a través de su análisis, identificar qué relación tienen estos ...
Antonio José Pérez Salguero
doaj +1 more source
Skarb z V okresu epoki brązu ze Strobina, gm. Konopnica w świetle badań metaloznawczych
Acta Universitatis Lodziensis: Folia Archaeologica, 2015 -
Damian Swat
doaj +1 more source
Evaluation of Strengthening Mechanisms in Novel Fully Ferritic Advanced High‐Strength Steels
steel research international, Volume 95, Issue 1, January 2024.The strengthening mechanisms of the ferritic Ti–Mo–V–Nb and Ti–Mo–V steels after the isothermal dwell at different temperatures (590, 630, and 680 °C) are evaluated. Results show that the estimated tensile strength of over 1000 MPa can be achieved in investigated steels, although the contribution of different strengthening mechanisms varies depending ...
Olli Nousiainen +4 more
wiley +1 more source