Results 41 to 50 of about 261,715 (314)
Jarosite versus Soluble Iron-Sulfate Formation and Their Role in Acid Mine Drainage Formation at the Pan de Azúcar Mine Tailings (Zn-Pb-Ag), NW Argentina [PDF]
, 2014 Secondary jarosite and water-soluble iron-sulfate minerals control the composition of acid mine waters formed by the oxidation of sulfide in tailings impoundments at the (Zn-Pb-Ag) Pan de Azúcar mine located in the Pozuelos Lagoon Basin (semi-arid ...
Alicia Kirschbaum +5 more
core +3 more sources
Advanced Engineering Materials, EarlyView.Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm +5 more
wiley +1 more source
Densification of lightweight aluminum borate ceramics by direct sintering of milled powders
Journal of Asian Ceramic Societies, 2018 Dense aluminum borate (Al18B4O33) materials were processed by simple milling-sintering of aluminum borate powders obtained by reacting calcined alumina and fine boric acid at temperatures of around 600–800ºC.
M.F. Hernández +5 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm +6 more
wiley +1 more source
Journal of Asian Ceramic Societies, 2016 The use of industrial waste (by-products) as raw materials in the ceramic industry has been under study for decades due to the economical, energy, tax and environmental advantages.
M.F. Serra +5 more
doaj +1 more source
Enseñanza de las Ciencias de la Tierra, 2012 La temática de este taller se centra en los minerales y el medioambiente. Se incluyen diferentes actividades prácticas en las que se realiza una presentación general de la problemática de estudio con visionado de vídeos (actividad 1), se trabaja en la localización de yacimientos minerales usando la herramienta Google Earth (actividad 2), se identifican
Carrillo-Rosúa, Javier +2 more
openaire +2 more sources
Los minerales son inocentes; las personas, no (minerales y personas) [PDF]
, 2008 Se proponen una serie de temas para hacer pequeños trabajos de aula o de investigación complementarios a la materia Biología y Geología. Son temas que relacionan, por una parte, el uso de los minerales en la vida diaria y, por otra, la extracción de los ...
Consorci del Museu de Ciències Naturals de Barcelona +2 more
core
Advanced Engineering Materials, EarlyView.Micro‐Raman spectroscopy is applied to characterize corrosion products in a recycled‐based MgO–316L steel composite anode after molten salt electrolysis. A depth‐dependent Fe–O/Fe–Al–O layer sequence of magnetite, hercynite, and an Al‐doped magnetite transition zone is identified.
Felix Drechsler +9 more
wiley +1 more source
Estudio de turmalinas y su implicancia genética en cuerpos pegmatoideos del Cerro Guacho, Sierras Septentrionales de la provincia de Buenos Aires [PDF]
, 2013 Fil: Lajoinie, María Florencia. Instituto de Recursos Minerales (INREMI). Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Canafoglia, María Elena. Centro de Química Inorgánica (CEQUINOR).
Canafoglia, María Elena +3 more
core
Advanced Engineering Materials, EarlyView.Low‐consumable nickel ferrite‐based anodes for the Hall–Héroult process are compared with conventional prebaked carbon anodes using thermodynamic simulation and prospective life cycle assessment under contrasting future electricity system pathways from 2025 to 2050.
Felipe Alejandro Garcia Paz +6 more
wiley +1 more source