Results 41 to 50 of about 563 (205)

Desenvolvimento de portadores de nanopartículas cerâmicas como nucleante para solidificação de ferro fundido cinzento [PDF]

, 2011
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Ciência e Engenharia de Materiais.Este estudo trata da obtenção de portadores de ferro com adição de nanopartículas cerâmicas, cuja eficiência foi
Lussoli, Rosineide Junkes
core  

Orbital‐Hybridizable Nanoseed Interphase Enables One‐Minute Rechargeable, Energy‐Dense Anode‐Free Aqueous Zinc Batteries

Advanced Materials, EarlyView.
An orbital‐hybridizable nanoseed (OHNS) interphase induces strong orbital hybridization between Zn and carbon edges, accelerating Zn nucleation while suppressing 2D surface diffusion. This interfacial electronic regulation drives uniform, dense, and (002)‐oriented Zn growth, enabling stable and fast charging behavior in anode‐free aqueous Zn batteries.
Won‐Yeong Kim, Ahyeon Son, Ohchan Kwon, Suseong Hyun, Sung Jun Hong, Hong‐I Kim, Ju Yeon Kim, Hyunseo Kang, Seung‐Hyeok Kim, Xu Liu, Kyeong‐Seok Oh, Jee Ho Ha, Seok Ju Kang, Stefano Passerini, Byungchan Han, Dae Woo Kim, Sang‐Young Lee   +16 more
wiley   +1 more source

Metodologia de análise de blocos de motores [PDF]

, 2003
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Mecânica.A indústria automobilística atual tem se preocupado muito em projetar motores que atendam à legislação criada para ...
Boff, Cristiano Ramos
core  

Research on Creep Test of Compacted Graphite Cast Iron and Parameter Identification of Constitutive Model under Wide Range of Temperature and Stress

Applied Sciences, 2022
With the increase in engine power density, the temperature and stress carried by the cylinder head during operation also increase. The thermal engine fatigue life prediction of the cylinder head needs to consider accurate and reasonable creep ...
Guoxi Jing, Shubo Li, Guang Chen, Junchao Wei, Shuai Sun, Junhai Zhang   +5 more
doaj   +1 more source

Conductive Additives for Next‐Generation Batteries: Emphasizing the Potential of Bio‐Derived 3D Carbon Architectures at Electrode–Electrolyte Interfaces

Advanced Materials Interfaces, EarlyView.
3D conductive frameworks can maintain continuous electron transport, mechanical stability, and interfacial integrity, helping next‐generation batteries operate more efficiently. This Review examines their relevance to Si anodes, all‐solid‐state batteries, and dry‐processed electrodes, and highlights bio‐derived carbons as sustainable, structurally ...
SeoYoung Ha, Inseo Ko, Jongyoung Choi, Weon Ho Shin, Sung Cik Mun, Jong Ho Won   +5 more
wiley   +1 more source

Estudo dos mecanismos de desgaste em ferramentas de nitreto de silício aplicadas no torneamento dos ferros fundidos vermicular e cinzento [PDF]

, 2009
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico.
Xavier, Fábio Antônio
core  

Microstructure and Mechanical Properties of Austenitic Compacted Cast Iron with Additive Manganese

MATEC Web of Conferences, 2016
High composition of austenitic matrix in microstructure is contributed to its special characteristic in reducing cracking and distortion. This special alloy will be in austenitic matrix when high temperature and also at room temperature which make it ...
Ahmad K. M., Maarof M. R., Ishak M., Huzairi M. S.   +3 more
doaj   +1 more source

On the Friction and Wear Mechanisms of Electrified Steel Contacts in CO2: Unveiling the Role of Carbon‐Rich Tribofilms Under Dry Sliding Conditions

Advanced Materials Interfaces, EarlyView.
This study investigates friction and wear of AISI 52100 steel under dry sliding in CO2, air, and N2 atmospheres, with and without contact electrification. CO2 forms a stable carbon‐rich tribofilm that reduces friction by ∼30% and wear by ∼85%. High‐resolution TEM, EELS, and molecular dynamics reveal pressure‐dependent lubrication mechanisms, showing ...
Julio A. Cao‐Romero‐Gallegos, Seungjoo Lee, Cagatay Yelkarasi, Leonardo I. Farfan‐Cabrera, Ryuichi Okamoto, Hitoshi Washizu, Ali Erdemir   +6 more
wiley   +1 more source

Aspectos tecnológicos do torneamento do ferro fundido vermicular com ferramentas de metal-duro, cerâmica e CBN [PDF]

, 2003
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico.
Xavier, Fábio Antônio
core  

Fracture mechanics and reliability of rupture of cast iron rotating disc

مجلة النهرين للعلوم الهندسية, 2009
In this paper, the crack propagation in opening mode (Mode I) for three kinds of cast iron rotating disc: Flake graphite cast iron disc, Compacted Vermicular cast iron disc, and Spheroidal graphite cast iron disc are analysed by using Boundary Element ...
Haider Hadi Jasim
doaj