Suchergebnisse - "Castro, Ricardo"

Sintering and Nanostability: The Thermodynamic Perspective von Castro, Ricardo H. R., Gouvêa, Douglas

“… Sintering and nanostability (defined as the stability against sintering) are critical phenomena present in the processing and application of nanoparticles …”
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Interfacial energies in nanocrystalline complex oxides von Castro, Ricardo H.R.

“… •Introduce concepts of interfacial energy modification in oxide materials.•Establishes rational behind impact of interfacial energies in nanostructural …”
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Safe and High-Performance Control Allocation von Castro, Ricardo de

“… This article focuses on the control of nonlinear systems with redundant actuation, where the number of actuators is higher than the number of controllable …”
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Grain boundary strengthening in nanocrystalline zinc aluminate von Yang, Chenguang, Thron, Andrew, Castro, Ricardo H. R.

“… Fully dense transparent zinc aluminate ceramics with nanoscaled grain sizes were fabricated by Deformable Punch Spark Plasma Sintering (DP‐SPS). Optical …”
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Kinetics and thermodynamics of densification and grain growth: Insights from lanthanum doped zirconia von Li, Hui, Dey, Sanchita, Castro, Ricardo H.R.

“… The effect of dopants (or additives) on sintering is typically addressed from a mechanistic and diffusivity perspective by focusing on how dopants affect those …”
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On the thermodynamic stability of nanocrystalline ceramics von Castro, Ricardo H.R.

“… Nanomaterials have intrigued the scientific community for many years due to their unique and unexpected properties. Though the number of technological …”
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Colossal grain boundary strengthening in ultrafine nanocrystalline oxides von Muche, Dereck N.F., Drazin, John W., Mardinly, John, Dey, Sanchita, Castro, Ricardo H.R.

“… One of the most classic size-effects in materials is the increase in the strength and hardness as the grain size decreases. However, a practical low size limit …”
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Surface energy effects on the stability of anatase and rutile nanocrystals: A predictive diagram for Nb2O5-doped-TiO2 von da Silva, Andre Luiz, Hotza, Dachamir, Castro, Ricardo H.R.

“… [Display omitted] •Anatase-rutile phase transition diagram was built for nano Nb2O5-doped-TiO2.•Nb2O5-doping postpones the anatase-to-rutile transition.•The …”
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Atomistic Simulation Informs Interface Engineering of Nanoscale LiCoO2 von Dahl, Spencer, Aoki, Toshihiro, Banerjee, Amitava, Uberuaga, Blas Pedro, Castro, Ricardo H R

“… Lithium-ion batteries continue to be a critical part of the search for enhanced energy storage solutions. Understanding the stability of interfaces (surfaces …”
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Thermodynamics and kinetics of sintering of Y2O3 von Nakajima, Kimiko, Castro, Ricardo H. R.

“… Surface energy (γS) and grain boundary energy (γGB) of yttrium oxide (Y2O3) were determined by analyzing the heat of sintering (ΔHsintering) using differential …”
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Direct measurements of quasi-zero grain boundary energies in ceramics von Nafsin, Nazia, Castro, Ricardo H.R.

“… Nanocrystalline bulk materials (also called nanograined materials) are intrinsically unstable due to the excess grain boundary (GB) free energies. Dopants …”
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A quality by design framework for developing nanocrystal bioenabling formulations von Simões, Ana, Castro, Ricardo A.E., Veiga, Francisco, Vitorino, Carla

“… [Display omitted] The present study aims to outline a rational framework for the design and development of a 1.0% (w/v) hydrocortisone nanocrystal-based …”
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Phylogenetic relationships within the speciose family Characidae (Teleostei: Ostariophysi: Characiformes) based on multilocus analysis and extensive ingroup sampling von Oliveira, Claudio, Avelino, Gleisy S, Abe, Kelly T, Mariguela, Tatiane C, Benine, Ricardo C, Ortí, Guillermo, Vari, Richard P, Corrêa e Castro, Ricardo M

“… Background With nearly 1,100 species, the fish family Characidae represents more than half of the species of Characiformes, and is a key component of …”
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Enhanced Thermodynamic Stability of Delithiated Nano-LiCoO2 by Lanthanum Doping von Dahl, Spencer, Costa, Luelc S, Bettini, Jefferson, Souza, Flavio L, Castro, Ricardo H R

“… The dynamic environment within lithium-ion batteries induces significant changes in local thermodynamic functions, hampering the accurate prediction of the …”
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Perspectives of Dendrimer-based Nanoparticles in Cancer Therapy von CASTRO, RICARDO I., FORERO-DORIA, OSCAR, GUZMÁN, LUIS

“… Currently, cancer is the second most common cause of death in the United States, exceeded only by heart disease. Chemotherapy traditionally suffers from a …”
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Al excess extends Hall‐Petch relation in nanocrystalline zinc aluminate von Sotelo Martin, Luis E., Castro, Ricardo H. R.

“… The increase in hardness with decreasing grain size is a well‐established size effect known as the Hall‐Petch relationship. In ceramics, there has been …”
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Thermodynamic and kinetic analyses of sintering in Al‐doped Y2O3 nanoparticles von Nakajima, Kimiko, Dahl, Spencer, Thron, Andrew, Castro, Ricardo H. R.

“… This work investigates the effects of doping on both the thermodynamics and kinetics of sintering in aluminum‐doped yttrium oxide nanoparticles (Al‐doped …”
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Accelerated Diversification Explains the Exceptional Species Richness of Tropical Characoid Fishes von Melo, Bruno F, Sidlauskas, Brian L, Near, Thomas J, Roxo, Fabio F, Ghezelayagh, Ava, Ochoa, Luz E, Stiassny, Melanie L J, Arroyave, Jairo, Chang, Jonathan, Faircloth, Brant C, MacGuigan, Daniel J, Harrington, Richard C, Benine, Ricardo C, Burns, Michael D, Hoekzema, Kendra, Sanches, Natalia C, Maldonado-Ocampo, Javier A, Castro, Ricardo M C, Foresti, Fausto, Alfaro, Michael E, Oliveira, Claudio

“… The Neotropics harbor the most species-rich freshwater fish fauna on the planet, but the timing of that exceptional diversification remains unclear. Did the …”
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A model for direct and inverse Hall-Petch relation for nanocrystalline ceramics von Sheinerman, Alexander G., Castro, Ricardo H.R., Gutkin, Mikhail Yu

“… •Grain boundary sliding violates Hall-Petch dependences for nanocrystalline ceramics.•Its activation energy can depend on the temperature regime of synthesis …”
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Essential Oils: Chemistry and Pharmacological Activities von de Sousa, Damião P., Damasceno, Renan Oliveira S., Amorati, Riccardo, Elshabrawy, Hatem A., de Castro, Ricardo D., Bezerra, Daniel P., Nunes, Vitória Regina V., Gomes, Rebeca C., Lima, Tamires C.

“… In this review, we provide an overview of the current understanding of the main mechanisms of pharmacological action of essential oils and their components in …”
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