Paula Rojas

2023

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

Vera, R., Valverde, B., Olave, E., Sánchez, R., Díaz-Gómez, A., Muñoz, L. & Rojas, P., Jul 2023, In: Heliyon. 9, 7, e17811.

Research output: Contribution to journal › Article › peer-review

Open Access

5 Scopus citations

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

Vera, R., Bagnara, M., Henríquez, R., Muñoz, L., Rojas, P. & Díaz-Gómez, A., Aug 2023, In: Materials. 16, 16, 5713.

Research output: Contribution to journal › Article › peer-review

Open Access

3 Scopus citations

2022

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

Vera, R., Valverde, B., Olave, E., Díaz-Gómez, A., Sánchez-González, R., Muñoz, L., Martínez, C. & Rojas, P., Dec 2022, In: Metals. 12, 12, 2082.

Research output: Contribution to journal › Article › peer-review

Open Access

5 Scopus citations

2021

Mechanochemical processing of IrO₂-Ta₂O₅: An alternative route for synthesizing Ir and Ir(Ta)O₂solid solution

Translated title of the contribution: Mechanochemical processing of IrO₂-Ta₂O₅: An alternative route for synthesizing Ir and Ir(Ta)O₂solid solutionGuzmán, D., Dubray, G., Aguilar, C., Rojas, P., Guzmán, A., Soliz, Á., Sepúlveda, R. & Espinoza, R., Mar 2021, In: Boletin de la Sociedad Espanola de Ceramica y Vidrio. 60, 2, p. 109-118 10 p.

Research output: Contribution to journal › Article › peer-review

Open Access

1 Scopus citations

2020

Effect of hot pressing and hot isostatic pressing on the microstructure, hardness, and wear behavior of nickel

Martínez, C., Briones, F., Aguilar, C., Araya, N., Iturriza, I., Machado, I. & Rojas, P., 15 Aug 2020, In: Materials Letters. 273, 127944.

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

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

Guzmán, D., Muranda, D., Soliz, A., Aguilar, C., Guzmán, A., Sancy, M., Pineda, F. & Rojas, P., Dec 2020, In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 51, 12, p. 6461-6469 9 p.

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

2019

Production of Ag−ZnO powders by hot mechanochemical processing

GUZMÁN, D., AGUILAR, C., ROJAS, P., CRIADO, J. M., DIÁNEZ, M. J., ESPINOZA, R., GUZMÁN, A. & MARTÍNEZ, C., Feb 2019, In: Transactions of Nonferrous Metals Society of China (English Edition). 29, 2, p. 365-373 9 p.

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Study on the effect of atmospheric corrosion on mechanical properties with impact test: Carbon steel and Galvanized steel

Vera, R., Araya, R., Garín, C., Ossandón, S. & Rojas, P., Jul 2019, In: Materials and Corrosion. 70, 7, p. 1151-1161 11 p.

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

2018

Effects of Zr on the amorphization of Cu-Ni-Zr alloys prepared by mechanical alloying

Martínez, C., Aguilar, C., Briones, F., Guzmán, D., Zelaya, E., Troncoso, L. & Rojas, P. A., 15 Oct 2018, In: Journal of Alloys and Compounds. 765, p. 771-781 11 p.

Research output: Contribution to journal › Article › peer-review

Open Access

12 Scopus citations

Evaluation of anticorrosive coatings on carbon steel in marine environments: Accelerated corrosion test and field exposure

Vera, R., Cruz, E., Bagnara, M., Araya, R., Henríquez, R., Díaz-Gómez, A. & Rojas, P., 1 Jan 2018, In: International Journal of Electrochemical Science. 13, 1, p. 898-914 17 p.

Research output: Contribution to journal › Article › peer-review

Open Access

15 Scopus citations

Synthesis and electrochemical properties of Ti-Si alloys prepared by mechanical alloying and heat treatment

Guzmán, D., García, C., Soliz, Á., Sepúlveda, R., Aguilar, C., Rojas, P., Iturriza, I. & Luno-Bilbao, C., Jun 2018, In: Metals. 8, 6, 417.

Research output: Contribution to journal › Article › peer-review

Open Access

3 Scopus citations

2017

Mg₂Nni_0.5Co_0.5compound obtaining by mechanical alloying and their performance on hydriding process

Translated title of the contribution: Mg₂Nni_0.5Co_0.5compound obtaining by mechanical alloying and their performance on hydriding processMartínez, C., Ordoñez, S., Guzmán, D., Serafini, D., Rojas, P. & Aguilar, C., 2017, In: DYNA (Colombia). 84, 200, p. 240-246 7 p.

Research output: Contribution to journal › Article › peer-review

Open Access

Microstructural and mechanical characterization of copper, nickel, and Cu-based alloys obtained by mechanical alloying and hot pressing

Martínez, C., Briones, F., Rojas, P., Aguilar, C., Guzman, D. & Ordoñez, S., 15 Dec 2017, In: Materials Letters. 209, p. 509-512 4 p.

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Microstructure and Mechanical Properties of Copper, Nickel and Ternary Alloys Cu-Ni-Zr Obtained by Mechanical Alloying and Hot Pressing

Martínez, C., Briones, F., Rojas, P., Ordoñez, S., Aguilar, C. & Guzmán, D., 2017, In: MRS Advances. 2, 50, p. 2831-2836 6 p.

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

2016

Characterization of phase changes during fabrication of copper alloys, crystalline and non-crystalline, prepared by mechanical alloying

Translated title of the contribution: Characterization of phase changes during fabrication of copper alloys, crystalline and non-crystalline, prepared by mechanical alloyingRojas, P. A., Martínez, C., Aguilar, C., Briones, F., Zelaya, M. E. & Guzmán, D., 2016, In: Ingenieria e Investigacion. 36, 3, p. 102-109 8 p.

Research output: Contribution to journal › Article › peer-review

Open Access

5 Scopus citations

Effect of the powder metallurgy manufacture process on the electrochemical behaviour of copper, nickel and copper-nickel alloys in hydrochloric acid

Rojas, P., Vera, R., Martínez, C. & Villarroel, M., 1 Jun 2016, In: International Journal of Electrochemical Science. 11, 6, p. 4701-4711 11 p.

Research output: Contribution to journal › Article › peer-review

Open Access

15 Scopus citations

Synthesis and characterization of Ti-Ta-Nb-Mn foams

Aguilar, C., Guerra, C., Lascano, S., Guzman, D., Rojas, P. A., Thirumurugan, M., Bejar, L. & Medina, A., 1 Jan 2016, In: Materials Science and Engineering C. 58, p. 420-431 12 p.

Research output: Contribution to journal › Article › peer-review

Open Access

38 Scopus citations

2015

Estudio de los cambios microestructurales del Ni al ser sometido a molienda de alta energía

Translated title of the contribution: Study of Ni microstructural changes when subjected to high energy millingMartínez, C., Rojas, P., Aguilar, C., Guzmán, D. & Zelaya, E., Jul 2015, In: Revista Materia. 20, 3, p. 621-626 6 p.

Research output: Contribution to journal › Article › peer-review

Open Access

3 Scopus citations

Fabricación de vidrios metálicos base cobre: Evolución de las fases durante el proceso de aleación mecánica

Translated title of the contribution: Production of copper-based metallic glasses: Evolution of the phases during mechanical alloyingRojas, P., Martínez, C., Viancos, F., Aguilar, C., Guzmán, D. & Zelaya, E., Jul 2015, In: Revista Materia. 20, 3, p. 705-713 9 p.

Research output: Contribution to journal › Article › peer-review

Open Access

3 Scopus citations

Production and characterisation of mechanical properties of Ti-Nb-Ta-Mn alloys foams for biomedical applications

Guerra, C., Aguilar, C., Guzmán, D., Arancibia, M., Rojas, P. A., Lascano, S. & Perez, L., 1 Mar 2015, In: Powder Metallurgy. 58, 1, p. 12-15 4 p.

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

2014

Mechanical properties of copper foams reinforced with alumina particles

Aguilar, C., Guzman, D., Rojas, P. A., Lascano, S., Perez, L., Alfonso, I. & Thirumurugan, M., 2014, Euro PM 2014 Congress and Exhibition, Proceedings. European Powder Metallurgy Association (EPMA), (Euro PM 2014 Congress and Exhibition, Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Production and characterization of mechanical properties of Ti-Nb-Ta-Mn alloy foams for biomedical applications

Guerra, C., Aguilar, C., Guzmán, D., Rojas, P. A., Lascano, S. & Perez, L., 2014, Euro PM 2014 Congress and Exhibition, Proceedings. European Powder Metallurgy Association (EPMA), (Euro PM 2014 Congress and Exhibition, Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Relationship between the chemical composition and atomic volume in Ag-x % at Zn (x ≤ 20) solid solutions

Translated title of the contribution: Relationship between the chemical composition and atomic volume in Ag-x % at Zn (x ≤ 20) solid solutionsGuzmán, D., Aguilar, C., Serafini, D., Rojas, P., Ordoñez, S. & Olivares-Pacheco, J. F., Apr 2014, In: DYNA (Colombia). 81, 184, p. 144-149 6 p.

Research output: Contribution to journal › Article › peer-review

Open Access

2 Scopus citations

Study of the formation and thermal stability of Mg₂Co obtained by mechanical alloying and heat treatment

Martínez, C., Ordoñez, S., Serafini, D., Guzmán, D. & Rojas, P., 25 Mar 2014, In: Journal of Alloys and Compounds. 590, p. 469-473 5 p.

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Synthesis of Ag–ZnO powders by means of a mechanochemical process

Guzmán, D., Muñoz, P., Aguilar, C., Iturriza, I., Lozada, L., Rojas, P. A., Thirumurugan, M. & Martínez, C., 9 Oct 2014, In: Applied Physics A: Materials Science and Processing. 117, 2, p. 871-875 5 p.

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Toughness of SAE 1020 steel with and without galvanization exposed to different corrosive environments in Chile

Rojas, P., Martínez, C., Vera, R. & Puentes, M., 2014, In: International Journal of Electrochemical Science. 9, 6, p. 2848-2858 11 p.

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

2013

Efecto de la difusión de ión cloruro en el comportamiento de acero galvanizado en estructuras de hormigón armado. Resultados preliminares

Translated title of the contribution: Effect of chloride ion diffusion in the behavior of reinforced concrete structures with galvanized steel. Preliminary resultsVera, R., Roman, J., Puentes, M., Bagnara, M., Carvajal, A. M. & Rojas, P., 2013, In: Revista de la Construccion. 12, 1, p. 30-40 11 p.

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Estimación de la distribución de energía en el aleado mecánico en los sistemas Cu-3% en peso de Cr y Cu-3% en peso de Mo

Translated title of the contribution: Estimation of energy distribution in mechanical alloying of the systems Cu-3wt.%Cr and Cu-3wt.%MoAguilar, C., Guzman, D., Ordoñez, S. & Rojas, P. A., 2013, In: Revista Latinoamericana de Metalurgia y Materiales. 33, 1, p. 74-81 8 p.

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Mechanical alloying and subsequent heat treatment of Ag-Zn powders

Guzmán, D., Rivera, O., Aguilar, C., Ordoñez, S., Martínez, C., Serafini, D. & Rojas, P., Jul 2013, In: Transactions of Nonferrous Metals Society of China (English Edition). 23, 7, p. 2071-2078 8 p.

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

2012

Construcción de mapas de corrosión atmosférica de Chile. Resultados preliminares

Translated title of the contribution: Construction of atmospheric corrosion maps in Chile. Preliminary resultsVera, R., Delgado, D., Araya, R., Puentes, M., Guerrero, I., Rojas, P., Cabrera, G., Erazo, S. & Carvajal, A. M., 2012, In: Revista Latinoamericana de Metalurgia y Materiales. 32, 2, p. 269-276 8 p.

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Effect of mechanical activation on the barite carbothermic reduction

Guzmán, D., Fernández, J., Ordoñez, S., Aguilar, C., Rojas, P. A. & Serafini, D., 25 Jan 2012, In: International Journal of Mineral Processing. 102-103, p. 124-129 6 p.

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Mapa de corrosión atmosférica de Chile: Resultados después de 1 año de exposición

Translated title of the contribution: Mapa de corrosión atmosférica de Chile: Resultados después de 1 año de exposiciónVera, R., Puentes, M., Araya, R., Rojas, P. & Carvajal, A., Aug 2012, In: Revista de la Construccion. 11, 2, p. 61-72 12 p.

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

2011

Effect of amorphous Mg₅₀Ni₅₀ on hydriding and dehydriding behavior of Mg₂Ni alloy

Guzmán, D., Ordoñez, S., Fernández, J. F., Sánchez, C., Serafini, D., Rojas, P. A., Aguilar, C. & Tapia, P., Apr 2011, In: Materials Characterization. 62, 4, p. 442-450 9 p.

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Simple thermodynamic model of the extension of solid solution of Cu-Mo alloys processed by mechanical alloying

Aguilar, C., Guzman, D., Rojas, P. A., Ordoñez, S. & Rios, R., 15 Aug 2011, In: Materials Chemistry and Physics. 128, 3, p. 539-542 4 p.

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

2010

Lixiviación de calcopirita mecánicamente activada utilizando ácido sulfúrico

Translated title of the contribution: Sulphuric acid leaching of mechanically activated chalcopyriteGuzmán, D., Ordoñez, S., Aguilar, C., Rojas, P., Serafni, D., Silva, W. & Díaz, C., Dec 2010, In: Revista Facultad de Ingenieria. 56, p. 32-39 8 p.

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Mechanical alloying of Cu-xCr (x = 3, 5 and 8 wt.%) alloys

Aguilar, C., Ordoñez, S., Guzman, D. & Rojas, P. A., 31 Aug 2010, In: Journal of Alloys and Compounds. 504, 1, p. 102-109 8 p.

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Structural, electrical and percolation threshold of al/ polymethylmethacrylate nanocomposites

Álvarez, M. P., Poblete, V. H. & Rojas, P. A., Feb 2010, In: Polymer Composites. 31, 2, p. 279-283 5 p.

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Thermal stability of amorphous Mg₅₀Ni₅₀ alloy produced by mechanical alloying

Guzmán, D., Ordoñez, S., Serafini, D., Rojas, P. A., Aguilar, C. & Santander, M., 15 Jan 2010, In: Journal of Non-Crystalline Solids. 356, 2, p. 120-123 4 p.

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

2009

Análisis de perfiles de difracción de rayos X de una aleación Cu-8% en peso de Cr obtenida por medio de aleado mecánico

Translated title of the contribution: X-Ray profile analysis of Cu-8wt.%Cr processed by mechanical alloyingAguilar, C., Rojas, P. A., Ordoñez, S. & Guzman, D., 2009, In: Revista Materia. 14, 2, p. 777-786 10 p.

Research output: Contribution to journal › Article › peer-review

Open Access

4 Scopus citations

Efecto del tiempo de molienda sobre la estabilidad témica del amorfo Mg₅₀Ni₅₀ producido mediante aleado mecáico

Translated title of the contribution: Effect of the milling time on thermal stability of mechanically alloyed Mg₅₀Ni₅₀ amorphous alloyGuzmán, D., Ordoñez, S., Serafini, D., Rojas, P., Aguilar, C., Santander, M. & Navea, L., Sep 2009, In: Revista de Metalurgia (Madrid). 45, 5, p. 375-383 9 p.

Research output: Contribution to journal › Article › peer-review

Open Access

1 Scopus citations

Effect of the milling energy on the production and thermal stability of amorphous Mg₅₀Ni₅₀

Guzmán, D., Ordoñez, S., Serafini, D., Rojas, P. & Bustos, O., 5 Mar 2009, In: Journal of Alloys and Compounds. 471, 1-2, p. 435-441 7 p.

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Indications of the formation of an oversaturated solid solution during hydrogenation of Mg-Ni based nanocomposite produced by mechanical alloying

Guzmán, D., Ordoñez, S., Fernández, J. F., Sánchez, C., Serafini, D., Rojas, P. A. & Aguilar, C., Jul 2009, In: International Journal of Hydrogen Energy. 34, 13, p. 5429-5438 10 p.

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Influencia de la atmósfera de control y tiempo de molienda sobre la morfología y microestructura de polvos de cobre puro y cobre-2,5 % litio producidos por aleado mecánico

Translated title of the contribution: Influence of the control atmosphere and milling time on the morphology and microstructure of pure copper and copper-2.5 % lithium powders produced by mechanical alloyingRojas, P. A., Álvarez, M. P., Peñaloza, A., Zúñiga, A. & Ordoñez, S., May 2009, In: Revista de Metalurgia (Madrid). 45, 3, p. 165-173 9 p.

Research output: Contribution to journal › Article › peer-review

Open Access

3 Scopus citations

2006

Nanostructure in a Ti alloy processed using a cryomilling technique

Sun, F., Rojas, P., Zúñiga, A. & Lavernia, E. J., 25 Aug 2006, In: Materials Science and Engineering A. 430, 1-2, p. 90-97 8 p.

Research output: Contribution to journal › Article › peer-review

59 Scopus citations

Supersaturated Cu-Li solid solutions produced by mechanical alloying

Rojas, P. A., Peñaloza, A., Wörner, C. H., Fernández, R. & Zúñiga, A., 30 Nov 2006, In: Journal of Alloys and Compounds. 425, 1-2, p. 334-338 5 p.

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Thermal stability and recrystallization of nanocrystalline Ti produced by cryogenic milling

Sun, F., Zúñiga, A., Rojas, P. & Lavernia, E. J., Jul 2006, In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 37, 7, p. 2069-2078 10 p.

Research output: Contribution to journal › Article › peer-review

42 Scopus citations

2005

Microstructural evolution during mechanical alloying of Mg and Ni

Rojas, P., Ordoñez, S., Serafini, D., Zúñiga, A. & Lavernia, E., 5 Apr 2005, In: Journal of Alloys and Compounds. 391, 1-2, p. 267-276 10 p.

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

Synthesis and characterization of nanocrystalline Ti alloys using a cryomilling technique

Sun, F. S., Rojas, P., Zúñiga, A. & Lavernia, E. J., 2005, MPMD Sixth Global Innovations Proceedings - Trends in Materials and Manufacturing Technologies for Transportation Industries and Powder Metallurgy Res. and Development in the Transportation Industry. Bieler, T. R., Carsley, J. E., Fraser, H. L., Sears, J. W. & Smugeresky, J. E. (eds.). p. 303-310 8 p. (MPMD Sixth Global Innovations Proceedings - Trends in Materials and Manufacturing Technologies for Transportation Industries and Powder Metall. Research and Development in the Transportation Industry).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

2003

Crystalline Mg₂Ni obtained from Mg-Ni amorphous precursor produced by mechanical alloying

Ordoñez, S., Rojas, P., Bustos, O., Martinez, V., Serafini, D. & San Martin, Y. A., 15 May 2003, In: Journal of Materials Science Letters. 22, 10, p. 717-720 4 p.

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Stoichiometric quantification of the amorphous precursor in the Mg-Ni system

Ordoñez, S., Rojas, P., San Martin, A., Serafini, D. & Bustos, O., 2003, In: Materials Science Forum. 416-418, 1, p. 138-143 6 p.

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Paula Rojas, PhD

Research output

Search results