Výsledky vyhledávání - "Dereck N.F. Muche"

Ultrahigh temperature in situ transmission electron microscopy based bicrystal coble creep in Zirconia II: Interfacial thermodynamics and transport mechanisms

Autor: Dereck N.F. Muche, Ricardo H. R. Castro, Shen J. Dillon, Lin Feng, K.S.N. Vikrant, Khalid Hattar, Robson L. Grosso, Anthony M. Monterrosa, R. Edwin García, Eliana N. S. Muccillo, Gowtham S. Jawaharram, Christopher M. Barr

Publikováno v: Acta Materialia. 200:1008-1021

This work uses a combination of stress dependent single grain boundary Coble creep and zero-creep experiments to measure interfacial energies, along with grain boundary point defect formation and migration volumes in cubic ZrO2. These data, along wit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7033ed60431071c7d5308b04ed2fbe58
https://doi.org/10.1016/j.actamat.2020.08.070

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Ultrahigh temperature in situ transmission electron microscopy based bicrystal coble creep in zirconia I: Nanowire growth and interfacial diffusivity

Autor: K.S.N. Vikrant, R. Edwin García, Anthony M. Monterrosa, Christopher M. Barr, Ricardo H. R. Castro, Eliana N. S. Muccillo, Shen J. Dillon, Dereck N.F. Muche, Gowtham S. Jawaharram, Lin Feng, Robson L. Grosso, Khalid Hattar

Publikováno v: Acta Materialia. 199:530-541

This work demonstrates novel in situ transmission electron microscopy-based microscale single grain boundary Coble creep experiments used to grow nanowires through a solid-state process in cubic ZrO2 between ≈ 1200 °C and ≈ 2100 °C. Experiments

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::363644e609f79cae2977f6b6dd43d7d9
https://doi.org/10.1016/j.actamat.2020.08.069

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In Situ Transmission Electron Microscopy for Ultrahigh Temperature Mechanical Testing of ZrO2

Autor: Shen J. Dillon, Khalid Hattar, Ricardo H. R. Castro, Eliana N. S. Muccillo, Anthony M. Monterrosa, Gowtham S. Jawaharram, Dereck N.F. Muche, Christopher M. Barr, Robson L. Grosso

Publikováno v: Nano Letters. 20:1041-1046

This work demonstrates a novel approach to ultrahigh-temperature mechanical testing using a combination of in situ nanomechanical testing and localized laser heating. The methodology is applied to characterizing and testing initially nanograined 10 m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c073640c63c8bb635cfab6b202992bf0
https://doi.org/10.1021/acs.nanolett.9b04205

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Tailoring hematite/FTO interfaces: New horizons for spin-coated hematite photoanodes targeting water splitting

Autor: Gabriela P. Leite, Dereck N.F. Muche, Mauricio A. Melo, Thayna M.G. dos Santos, Flavio L. Souza, Renato V. Gonçalves

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

This letter focuses on finding the balance from optical absorption and performance on oxidation of water induced by sunlight irradiation. A simple and scalable chemical based spin-coating deposition method was employed to tailor an active hematite-su

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b8b945d4c7b504dfa8fd453894995c5
https://doi.org/10.1016/j.matlet.2019.07.068

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Sintering of translucent and single-phase nanostructured scandia-stabilized zirconia

Autor: Eliana N. S. Muccillo, Shen J. Dillon, Dereck N.F. Muche, Robson L. Grosso, Ricardo H. R. Castro, Taeko Yonamine

Publikováno v: Materials Letters. 253:246-249

Fully-dense and single-phase nanostructured scandia-stabilized zirconia specimens were produced by high-pressure spark plasma sintering technique. Nanocrystalline powders were prepared by the coprecipitation method. Green pellets were sintered at tem

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::04f68d6b33ab5ba0a7ad118b84d80cd3
https://doi.org/10.1016/j.matlet.2019.06.076

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Density and Derived Properties of Binary Mixtures Containing {2-(Dimethylamino)ethyl Methacrylate + Alcohols} at Temperatures from T = (293.15 to 313.15) K and Pressures of up to 35 MPa

Autor: Ricardo Belchior Torres, Dereck N.F. Muche, Gustavo Vieira Olivieri

Publikováno v: Journal of Chemical & Engineering Data. 64:1909-1921

In this study, experimental density data (ρ) for binary liquid mixtures containing {2-(dimethylamino)ethyl methacrylate (DMAEMA) + methanol, or + ethanol, or + 1-propanol, or + 1-butanol, or + 1-pentanol} have been measured over the entire compositi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b6fdc8c70d17b968ab7f4a0e56c9f742
https://doi.org/10.1021/acs.jced.8b00975

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TiO2 Surface Engineering to Improve Nanostability: The Role of Interface Segregation

Autor: Ricardo H. R. Castro, Alexandra Navrotsky, André Luis Porto da Silva, Douglas Gouvêa, Dereck N.F. Muche, Lorena Batista Caliman, Jefferson Bettini

Publikováno v: The Journal of Physical Chemistry C. 123:4949-4960

Nanoparticle stability against coarsening is one of the keys to allow better exploitation of the properties of nanoscale materials. The intrinsically high interfacial energies of nanoparticles constitute the driving force for coarsening, and therefor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::81129d236cb7139955c14225146dcc7a
https://doi.org/10.1021/acs.jpcc.8b12160

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The effect of electric fields on grain growth in MgAl2O4 spinel

Autor: Ricardo H. R. Castro, Wei Qin, Dereck N.F. Muche, Klaus van Benthem

Publikováno v: Journal of the European Ceramic Society. 38:5512-5518

The application of electrostatic fields during processing of oxide ceramic microstructures was previously reported to enhance densification and grain growth. In this study effects of the externally applied electrostatic field strength on grain growth

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f113823b2ab18430c04b7f6305197c34
https://doi.org/10.1016/j.jeurceramsoc.2018.08.030

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