Paula Rojas

Mechanical activation as a strategy for energy-efficient solid-state synthesis of Zn2SnO4 functional oxides

Danny Guzmán, Felipe Torres, Álvaro Soliz, Alexis Guzmán et autres

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Corrosion behavior of pure aluminum in a marine atmospheric environment and evolution of electrochemical and mechanical properties

R.M. Vera, Lisa Muñoz, Andrés Díaz-Gómez, Francisco Briones et autres

Aluminum and its alloys are widely recognized as strategic materials for structural and transportation applications due to their low density and corrosion resistance. However, anthropogenic factors associated with climate change and pollutant accumulation in coastal regions induce electrochemical alterations that progressively degrade …

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Off-target effects of biological nitrification inhibitors on soil microbial substrate use and enzyme activity in an agricultural soil

Iris Karbon, Konstanze Madani, Judith Prommer, Paula Rojas et autres

High nitrification rates and substantial nitrogen (N) losses through nitrate leaching and N2O emissions make current agricultural practices unsustainable, contributing to greenhouse gas emissions and environmental pollution. Synthetic nitrification inhibitors (SNIs) can be amended with N-fertilizers to reduce the conversion of ammonia …

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Territorio e identidad en la novela Esta herida llena de peces de Lorena Salazar Masso

Aura Gisela Calderón Santos, Danna Estefanía Mape Ospina, Paula Rojas, Jhonatan Stiven Orjuela Velandia

A ritmo de canoa, la joven escritora colombiana Lorena Salazar Masso (Medellín, 1991) nos hace viajar por su primera novela Esta herida llena de peces (2021). Debemos preparar los sentidos y estar atentos en cada parada.

Performance of Anticorrosive Paint Systems for Carbon Steel in the Antarctic Marine Environment

Rosa Vera, Margarita Bagnara, Rodrigo Henríquez, Lisa Muñoz et autres

This study evaluated the behavior of three paint systems exposed to the Antarctic marine environment for 45 months compared to a control of uncoated carbon steel with a determined corrosion rate. At the study site, all environmental conditions, solar radiation, and the …

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Atmospheric corrosion and impact toughness of steels: Case study in steels with and without galvanizing, exposed for 3 years in Rapa Nui Island

Rosa Vera, Bárbara Valverde, Elizabeth Olave, Rodrigo Sánchez et autres

We studied atmospheric corrosion on Rapa Nui Island, using galvanized and non-galvanized SAE 1020 steel samples exposed on racks. We also added Charpy samples of both materials to directly determine the effect of corrosion rate on these materials' impact toughness. The results …

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Atmospheric Corrosion and Impact Toughness of Steels: Case Study in Steels with and Without Galvanizing, Exposed for 3 Years in Rapa Nui Island

Rosa Vera, Bárbara Valverde, Elizabeth Olave, Rodrigo Sánchez et autres

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Corrosion Behavior of Copper Exposed in Marine Tropical Atmosphere in Rapa Nui (Easter Island) Chile 20 Years after MICAT

Rosa Vera, Bárbara Valverde, Elizabeth Olave, Andrés Díaz‐Gómez et autres

Atmospheric corrosion of copper, exposed on a tropical island in the South-Central Pacific Ocean, was reported and compared with those of a very similar study at the same site conducted 20 years earlier. The new measurements—taken over three years of exposure, from …

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Production of copper-based metallic glasses: evolution of the phases during mechanical alloying

Paula Rojas, Carola Martínez, Francisco Viancos, Claudio Aguilar et autres

ABSTRACTIn this study, different, copper-based materials were fabricated under equal milling conditions (SPEX 8000D, argon atmosphere, stearic acid, BPR=10:1) and variable amounts of time, from 1 to 120 hours, in order to compare the microstructural changes during the process. The materials were: …

La adaptación en un entorno intermedial: experiencia de una investigación-creación

Paula Rojas

Este artículo tiene como objetivo analizar la investigación-creación que cuestiona la problemática de la adaptación de un texto narrativo al teatro al integrar las posibilidades dramatúrgicas que la presencia de las tecnologías digitales ofrece a la escena. Este proceso nos aleja de …

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Animal fibers as water reservoirs for internal curing of mortars and their limits caused by fiber clustering

F.C. Antico, Paula Rojas, Francisco Briones, Gerardo Araya-Letelier

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Powder Metallurgy Production of Ti-2 Wt Pct Si Alloy: Structural, Mechanical, and Electrochemical Characterization of the Sintered Material

Danny Guzmán, Diego Muranda, Álvaro Soliz, Claudio Aguilar et autres

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