Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Danny Guzmán"'
Autor:
Danny Guzmán, Augusto Figueroa, Alvaro Soliz, Alexis Guzmán, Claudio Aguilar, Felipe M. Galleguillos-Madrid, Carlos Portillo, Syed Ismat Shah
Publikováno v:
Materials, Vol 17, Iss 20, p 5115 (2024)
Ag-based electrical contact materials are essential in low-voltage devices such as relays, switches, circuit breakers, and contactors. Historically, Ag-CdO composites have been preferred due to their superior electrical and thermal conductivities, re
Externí odkaz:
https://doaj.org/article/36e30906fbec41f38a56dd8d2aed633c
Autor:
Felipe M. Galleguillos Madrid, Alvaro Soliz, Luis Cáceres, Sebastian Salazar-Avalos, Danny Guzmán, Edelmira Gálvez
Publikováno v:
Materials, Vol 16, Iss 17, p 6017 (2023)
The deterioration of reinforced concrete structures in marine environments presents multiple problems due to the premature degradation of reinforced steel. This work aimed to study the corrosion of reinforced A630-420H steel when exposed to a 0.5 M N
Externí odkaz:
https://doaj.org/article/c2bb0198ec854f69882a4ea13592cd09
Autor:
Danny Guzmán, Gabriel Dubray, Claudio Aguilar, Paula Rojas, Alexis Guzmán, Álvaro Soliz, Rossana Sepúlveda, Rodrigo Espinoza
Publikováno v:
Boletín de la Sociedad Española de Cerámica y Vidrio, Vol 60, Iss 2, Pp 109-118 (2021)
This paper describes a study exploring milling and subsequent heat treatments of pure IrO2 and Ta2O5 powders. Reactants were milled under Ar atmosphere in a SPEX 8000D mill, with structural, morphological, and compositional characterizations (during
Externí odkaz:
https://doaj.org/article/6586c22077e44dd4b42dc6213fa32cfa
Autor:
Danny Guzmán, Felipe González, Diego Muranda, Claudio Aguilar, Alexis Guzmán, Álvaro Soliz, Lorena Lozada, Iñigo Iturriza, Felipe Castro
Publikováno v:
Materials, Vol 16, Iss 10, p 3618 (2023)
This study investigated the synthesis of Ag-SnO2-ZnO by powder metallurgy methods and their subsequent electrical contact behavior. The pieces of Ag-SnO2-ZnO were prepared by ball milling and hot pressing. The arc erosion behavior of the material was
Externí odkaz:
https://doaj.org/article/91e9199c09584a6887714566f88fe45f
Publikováno v:
Metals, Vol 12, Iss 4, p 665 (2022)
This work reports on the electrochemical kinetic analysis of carbon steel powders produced during the milling of carbon steel chips for 2, 3, and 5 h under an air atmosphere in a high-energy ball miller. This work aims to fill the gap in the literatu
Externí odkaz:
https://doaj.org/article/122cc33a1aab430e87da8002bda19963
Autor:
Daniela Silva, Camila Arcos, Cecilia Montero, Carolina Guerra, Carola Martínez, Xuejie Li, Armelle Ringuedé, Michel Cassir, Kevin Ogle, Danny Guzmán, Claudio Aguilar, Maritza Páez, Mamié Sancy
Publikováno v:
Materials, Vol 15, Iss 1, p 131 (2021)
The increase in longevity worldwide has intensified the use of different types of prostheses for the human body, such as those used in dental work as well as in hip and knee replacements. Currently, Ti-6Al-4V is widely used as a joint implant due to
Externí odkaz:
https://doaj.org/article/6d6a24eb61e34b8fa9288e73e5aadb8d
Autor:
Carola Andrea Martínez Ugalde, Stella Ordoñez, Danny Guzmán, Daniel Serafini, Paula Rojas, Claudio Aguilar
Publikováno v:
Dyna, Vol 84, Iss 200, Pp 240-246 (2017)
Este trabajo presenta la evolución microestructural del compuesto Mg2Ni0,5Co0,5 obtenido mediante aleado mecánico y el estudio de sus propiedades de hidruración. Los polvos elementales de Mg, Ni y Co con una relación atómica 2:0,5:0,5 se alearon
Externí odkaz:
https://doaj.org/article/0b35f3f15e9a4790b02c9ae0de1e60d7
Autor:
Giselle Araya, Norman Toro, Jonathan Castillo, Danny Guzmán, Alexis Guzmán, Pía Hernández, Ricardo I. Jeldres, Rossana Sepúlveda
Publikováno v:
Metals, Vol 10, Iss 5, p 627 (2020)
In this study, weak acid in the curing and leaching stages of copper ore was incorporated, and we analyzed its effect on the dissolution of copper and final impurities. The weak acid corresponds to a wastewater effluent from sulfuric acid plants prod
Externí odkaz:
https://doaj.org/article/68d7870436e1472ba920e19f39e73529
Autor:
Danny Guzmán, Claudio Aguilar, Daniel Serafini, Paula Rojas, Stella Ordoñez, Juan F. Olivares-Pacheco
Publikováno v:
Dyna, Vol 81, Iss 184, Pp 144-149 (2014)
Este trabajo tuvo como objetivo estudiar la relación existente entre la composición química y el volumen atómico en el sistema Ag – x % at Zn (x ≤ 20). Para este fin, se fabricaron 10 soluciones sólidas mediante fundición y aleado mecánico
Externí odkaz:
https://doaj.org/article/0a9f8d2f32314522ba19e3c2df22f5c2
Autor:
Danny Guzmán, Carolina García, Álvaro Soliz, Rossana Sepúlveda, Claudio Aguilar, Paula Rojas, Iñigo Iturriza, Carmen Luno-Bilbao
Publikováno v:
Metals, Vol 8, Iss 6, p 417 (2018)
The aim of this work was to study the synthesis and electrochemical properties of Ti 2 wt %-Si alloys prepared by mechanical alloying (MA) and heat treatment. The MA process was performed under Ar atmosphere. The structural, morphological, and compos
Externí odkaz:
https://doaj.org/article/8a14fd57f3e34142a1d6f01fbd0613ee