Search Results - "Araújo, Carlos José De"

Microstructure and Thermal Analyses of Cu87-xAl13Nbx High-Temperature Shape Memory Alloys by Simões, Jackson de Brito, Pereira, Endira Maria Araújo, Santiago, José Joelson de Melo, Araújo, Carlos José de

“…This paper presents a thermal and microstructural characterization of Cu87-xAl13Nbx (wt%) high temperature shape memory alloys (HTSMA), with Nb contents…”
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Martensitic Transformation Under Compression of a Plasma Processed Polycrystalline Shape Memory CuAlNi Alloy by Braga, Fábio de Oliveira, Matlakhov, Anatoliy Nikolaevich, Matlakhova, Lioudmila Aleksandrovna, Monteiro, Sergio Neves, Araújo, Carlos José de

“…Shape memory alloys (SMA) are attracting considerable attention owing to possible applications from biomedical to aerospace. In particular, CuAlNi alloys…”
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Nickel-Titanium Alloys Welding of Thin Sheets Using GTAW: Comparative Study Between Similar and Dissimilar Welding with AISI 304 Stainless Steel by Oliveira, Matheus José Cunha de, Melo, Raphael Henrique Falcão de, Maciel, Theóphilo Moura, Araújo, Carlos José de

“…The objective of the present work was to evaluate welding of thin sheets (thickness < 1 mm) of similar and dissimilar NiTi alloys with AISI 304 stainless steel…”
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Fallow Reduces Soil Losses and Increases Carbon Stock in Caatinga by Almeida, Cicero Lima de, Araújo, José Carlos de, Costa, Mirian Cristina Gomes, Almeida, Aldênia Mendes Mascena de, Andrade, Eunice Maia de

“…ABSTRACT This study aimed at evaluating whether 10 years of fallow was sufficient to restore a degraded hillslope in the semi-arid Caatinga biome, Brazil. For…”
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Critical Frequency of Self-Heating in a Superelastic Ni-Ti Belleville Spring: Experimental Characterization and Numerical Simulation by de Souza, Emmanuel Ferreira, da Silva, Paulo César Sales, Grassi, Estephanie Nobre Dantas, de Araújo, Carlos José, de Lima, Antonio Gilson Barbosa

“…The mechanical loading frequency affects the functional properties of shape memory alloys (SMA). Thus, it is crucial to study its effect for the successful use…”
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Effect of Spun Velocities and Composition on the Microstructure and Transformation Temperatures of TiNi Shape Memory Ribbons by López Cuellar, Enrique, López Pavón, Luis, Nuñez Mendoza, Esaú, Araújo, Carlos José De, Castro, Walman Benicio De, Gonzalez, Cezar, Otubo, Jorge

“…Ti-50.13Ni and Ti-49.62Ni (at.%) shape memory alloy ribbons were fabricated by melt-spinning method at different circumferential wheel velocities. The effects…”
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Hydrological Impact of a High-Density Reservoir Network in Semiarid Northeastern Brazil by Malveira, Vanda Tereza Costa, Araújo, José Carlos de, Güntner, Andreas

“…Dense reservoir networks, with thousand of small dams, can be increasingly found throughout the world, especially in water-scarce environments, such as the…”
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Effect of Spun Velocities and Composition on the R‒phase and Thermomechanical Behavior in Ti‒Ni Ribbons Electrically Heated by Cuellar, Enrique López, Mendoza, Esaú Nuñez, Araújo, Carlos José De, Walle, Beatriz Cristina López, Otubo, Jorge, Gonzalez, Cezar

“…This work deals with structural, electrical and mechanical characterization of Ti-50.13Ni and Ti-49.62Ni (at.%) shape memory alloys (SMAs) fabricated at…”
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Spatial behaviour of soil moisture in the root zone of the Caatinga biome by Costa, Carlos Alexandre Gomes, Lopes, José Wellington Batista, Pinheiro, Everton Alves Rodrigues, Araújo, José Carlos de, Gomes Filho, Raimundo Rodrigues

“…The purpose of this study was to represent the soil moisture in the profile corresponding to the root zone from TDR sensors in a preserved area of the Caatinga…”
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Thermal Diffusivity Measurement of a NiTi Shape Memory Alloy Using a Periodic Temperature Field by Ferreira-Oliveira, José Ricardo, da Silva, Paulo César Sales, de Lucena, Luiz Roberto Rocha, dos Reis, Rômulo Pierre Batista, de Araújo, Carlos José, Filho, Celso Rosendo Bezerra

“…The aim of this study is to estimate the thermal diffusivity of martensitic and austenitic microstructures of a NiTi SMA. To this end, an experimental…”
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Measurement of Phase Transformation Temperatures in Shape Memory Alloys Using a Peltier Thermoelectric Apparatus by dos Reis, Rômulo Pierre Batista, Ferreira-Oliveira, José Ricardo, Grassi, Estephanie Nobre Dantas, da Rocha Souto, Cícero, de Araújo, Carlos José

“…Shape Memory Alloys (SMA) are advanced metallic materials with physical and mechanical properties intrinsically dependent on temperature. This temperature…”
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Geostatistical and multivariate analysis of soil attributes between terrace channels in the semi-arid region by Costa, Mirian Cristina Gomes, Lima, Luan Alves, Dias, Carlos Tadeu dos Santos, Oliveira, Francisco Ronaldo Alves de, Blum, Julius, Araújo, José Carlos de, Mota, Jaedson Cláudio Anunciato

“…ABSTRACT The spatial variability of soil attributes in terraced areas is poorly studied in the semi-arid region. Considering that multivariate analysis…”
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The role of unpaved roads in the sediment budget of a semiarid mesoscale catchment by Farias, Teresa Raquel Lima, Medeiros, Pedro Henrique Augusto, Araújo, José Carlos de, Navarro‐Hevia, Joaquín

“…High erosion and runoff rates have been measured on road infrastructure, indicating that unpaved roads might be significant sources of sediment in catchments…”
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Uncertainty Quantification Through use of the Monte Carlo Method in a One-Dimensional Heat Conduction Experiment by Ferreira-Oliveira, José Ricardo, de Lucena, Luiz Roberto Rocha, dos Reis, Rômulo Pierre Batista, de Araújo, Carlos José, Bezerra-Filho, Celso Rosendo, Arencibia, Rosenda Valdés

“…The correct expression of temperature measurement results is of the utmost importance for experimental research in thermal sciences. Temperature measurements…”
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Modelling intermittence and river flow in the semi-arid region of Brazil: The Umbuzeiro River, Ceará by Lima, Gabriela Domingos, Lima, Thales Bruno Rodrigues, Soares, Nazaré Suziane, Araújo, José Carlos de

“…ABSTRACT Research shows an increase in the intermittence of rivers of different spatial scales. Exploring intermittence in semi-arid regions, also…”
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Nanoparticles from Cu-Zn-Al shape memory alloys physically synthesized by ion milling deposition by López Pavón, Luis Alberto, Lopez Cuellar, Enrique, Ballesteros, Carmen, Torres Castro, Alejandro, Martínez de la Cruz, Azael, Araújo, Carlos José de

“…In this research, an ion milling equipment was used to elaborate nanoparticles from Cu-Zn-Al alloys with shape memory effect. Two different compositions were…”
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Thermoelastic properties on Cu-Zn-Al shape memory springs by Oliveira, Carlos Augusto do Nascimento, Gonzalez, Cezar Henrique, Araújo, Carlos José de, Araújo Filho, Oscar Olímpio de, Urtiga Filho, Severino Leopoldino

“…This paper present a thermomechanical study of actuators in form of helical springs made from shape memory alloy wires that can work as actuator and/or as…”
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Sub-hourly rainfall patterns by hyetograph type under distinct climate conditions in Northeast of Brazil: a comparative inference of their key properties by Barbosa, Luís Romero, Almeida, Cristiano das Neves, Coelho, Victor Hugo Rabelo, Freitas, Emerson da Silva, Galvão, Carlos de Oliveira, Araújo, José Carlos de

“…ABSTRACT The lack of process-based classification procedures may lead to unrealistic hyetograph design due to complex oscillation of rainfall depths when…”
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Entropy-based equation to assess hillslope sediment production by de Araujo, Jose Carlos

“…A new equation to assess hillslope sediment production, based on physical and probabilistic approaches, is presented. The equation, which allows the…”
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Castability of Cu-Al-Mn shape memory alloy in a rapid investment casting process: computational and experimental analysis by da Silva Albuquerque, Carlos Eduardo, Grassi, Estephanie Nobre Dantas, De Araújo, Carlos José

“…Comparisons between virtual prototyping and experimental results are notably beneficial for the development of investment casting processes. In this research,…”
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