Zobrazeno 1 - 9 of 9 pro vyhledávání: '"Nelson Delfino de Campos Neto"'
1
Akademický článek
Towards lube-free aluminum high pressure die casting using duplex AlCrN physical vapor deposition coatings
Autor: Nelson Delfino de Campos Neto, Ryan Brune, Alan A. Luo, Paul Brancaleon, Andras L. Korenyi-Both, Stephen P. Midson, Michael J. Kaufman
Publikováno v: Journal of Materials Research and Technology, Vol 24, Iss , Pp 7409-7426 (2023)
Aluminum high pressure castings (HPDC) were successfully produced on two simple but slightly different H13 steel dies that had been coated with AlCrN physical vapor deposition (PVD) coatings and without the use of conventionally-sprayed die lubricant
Externí odkaz: https://doaj.org/article/3343af8a61264f1b8cdb9112321c43a6
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2
Akademický článek
Oxide Formation in a Melt Spun Alloy in the Zr-Ni-Cu System
Autor: Nelson Delfino de Campos Neto, Leonardo Pratavieira Deo, Marcio Andreato Batista Mendes, Michael Joseph Kaufman, Marcelo Falcão de Oliveira
Publikováno v: Materials Research, Vol 25 (2022)
The microstructure of a melt-spun Zr28Ni44Cu28 (at. %) alloy was characterized in order to determine the structures and compositions of the crystalline phases that compete with glass formation during rapid solidification. Two crystalline phases were
Externí odkaz: https://doaj.org/article/bba4776fb4574c0080ea5e800df03b91
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3
Akademický článek
Analysis of Processing Parameters to Avoid Additional Oxygen Contamination During Production of Zr-based Bulk Metallic Glasses by Suction Casting in an Arc-melting Furnace
Autor: Nelson Delfino de Campos Neto, Flavio Soares Pereira, Marcelo Falcão de Oliveira
Publikováno v: Materials Research, Vol 24, Iss 1 (2021)
This study first reports details of a successful arc-melting furnace in the production of bulk metallic glasses (BMGs). Also, the study presents the results of a statistical experiment evaluating critical processing parameters that can increase oxyge
Externí odkaz: https://doaj.org/article/741c3bbf40e94de6b0f9d7f3b3c67937
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4
Akademický článek
Vitreloy-105 Behavior Under Mutual Wear
Autor: Felipe Raphael Salgado, Janaina Fracaro de Souza Gonçalves, Marcio Andreato Batista Mendes, Nelson Delfino de Campos Neto, Marcelo Falcão de Oliveira
Publikováno v: Materials Research, Vol 23, Iss 4 (2020)
Abstract Zr-based bulk metallic glasses (BMGs) are widely used as mechanical components due to their excellent properties and high glass-forming ability. However, there is a lack of research concerning the tribological behavior of BMG versus BMG. The
Externí odkaz: https://doaj.org/article/c55b2054cd2b47fd80ccd5a1a57c82c0
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5
Akademický článek
Influence of Small Content Elements Additions on the Glass Forming Ability of Zr-based Bulk Metallic Glasses Alloys
Autor: Nelson Delfino de Campos Neto, Wesley Marques de Paula, Flavio Soares Pereira, Catherine Jane Parrish, Marcelo Falcão de Oliveira
Publikováno v: Materials Research, Vol 21, Iss 6 (2018)
The present work reports investigation on the Glass Forming Ability (GFA) of Zr-based Bulk Metallic Glasses (BMG’s) by microalloying with early transition metals. GFA was measured as the amorphous fraction formed in samples with different diameters
Externí odkaz: https://doaj.org/article/d3cc4f7f834249ac86d99324a54b6ea3
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6
Analysis of Processing Parameters to Avoid Additional Oxygen Contamination During Production of Zr-based Bulk Metallic Glasses by Suction Casting in an Arc-melting Furnace
Autor: Flavio Soares Pereira, Marcelo Falcão de Oliveira, Nelson Delfino de Campos Neto
Publikováno v: Materials Research, Volume: 24, Issue: 1, Article number: e20200276, Published: 05 FEB 2021
Materials Research, Vol 24, Iss 1 (2021)
Materials Research v.24 n.1 2021
Materials research (São Carlos. Online)
Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
This study first reports details of a successful arc-melting furnace in the production of bulk metallic glasses (BMGs). Also, the study presents the results of a statistical experiment evaluating critical processing parameters that can increase oxyge
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8576c1a4185070186eee18fbd8d446a3
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000100216&lng=en&tlng=en
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7
Effective method to enhance the glass-forming ability of vitreloy 105 containing high oxygen concentrations
Autor: Renan Freire de Carvalho Lopes Rocha, Nelson Delfino de Campos Neto, Felipe Henrique Santa Maria, Carolina Soares, Marcelo Falcão de Oliveira, Flavio Soares Pereira
Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Oxygen sensitiveness of Zr-based bulk metallic glasses (BMGs) is well known and has a huge detrimental effect decreasing the alloy glass-forming ability (GFA) as well as mechanical properties. Addition of rare earth elements has been widely used in a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::73bc61a8ad4a4efa7749807ec66e64ab
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8
Vitreloy-105 Behavior Under Mutual Wear
Autor: Janaina Fracaro de Souza Gonçalves, Marcio Andreato Batista Mendes, Marcelo Falcão de Oliveira, Nelson Delfino de Campos Neto, Felipe Raphael Salgado
Publikováno v: Materials Research v.23 n.4 2020
Materials research (São Carlos. Online)
Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
Materials Research, Vol 23, Iss 4 (2020)
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Zr-based bulk metallic glasses (BMGs) are widely used as mechanical components due to their excellent properties and high glass-forming ability. However, there is a lack of research concerning the tribological behavior of BMG versus BMG. The sliding
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c884ebc8806ded4f9f85c5f379b135f
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392020000400214
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9
Phase formation maps in Zr48Cu46.5Al4Nb1.5 bulk metallic glass composites as a function of cooling rate and oxygen concentration
Autor: Flavio Soares Pereira, Yaofeng Guo, Michael J. Kaufman, Marcelo Falcão de Oliveira, Nelson Delfino de Campos Neto, Selma Gutierrez Antonio, Amy J. Clarke
Publikováno v: Web of Science
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Made available in DSpace on 2020-12-10T17:03:15Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-12-01 Boeing Research & Technology Brazil (BRT-Brazil) Center for Advanced Non-Ferrous Structural Alloys (CANFSA), a National Science Foundation In
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::944048b013fec01dd249642f7a7f33e7
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