Ultrahigh temperature in situ transmission electron microscopy based bicrystal coble creep in Zirconia II: Interfacial thermodynamics and transport mechanisms
Sign Up to like & getrecommendations! Published in 2020 at "Acta Materialia"
DOI: 10.1016/j.actamat.2020.08.070
Abstract: Abstract 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… read more here.
Keywords: grain boundary; thermodynamics; microscopy; ultrahigh temperature ... See more keywords
Effects of V addition on the microstructure and properties of multi-elemental Nb–Si based ultrahigh temperature alloys
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2020.156254
Abstract: Abstract Four multi-elemental Nb–Si based ultrahigh temperature alloys with nominal compositions of Nb–22Ti–15Si–5Cr–5Mo–4Zr–3Al-2Hf-xV (x = 0, 3, 5 and 10, respectively) (at.%) were prepared by vacuum non-consumable arc-melting. The effects of V addition on the microstructure, room… read more here.
Keywords: temperature; addition; multi elemental; temperature alloys ... See more keywords
Advances in the Synthesis of Preceramic Polymers for the Formation of Silicon-Based and Ultrahigh-Temperature Non-Oxide Ceramics.
Sign Up to like & getrecommendations! Published in 2023 at "Chemical reviews"
DOI: 10.1021/acs.chemrev.2c00381
Abstract: Preceramic polymers (PCPs) are a group of specialty macromolecules that serve as precursors for generating inorganics, including ceramic carbides, nitrides, and borides. PCPs represent interesting synthetic challenges for chemists due to the elements incorporated into… read more here.
Keywords: synthesis preceramic; chemistry; ultrahigh temperature; preceramic polymers ... See more keywords
In situ Transmission Electron Microscopy for Ultrahigh Temperature Mechanical Testing of ZrO2.
Sign Up to like & getrecommendations! Published in 2020 at "Nano letters"
DOI: 10.1021/acs.nanolett.9b04205
Abstract: 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 mol%… read more here.
Keywords: temperature; mechanical testing; microscopy; zro2 ... See more keywords
Ultrahigh‐temperature osumilite gneisses in southern Madagascar record combined heat advection and high rates of radiogenic heat production in a long‐lived high‐T orogen
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Metamorphic Geology"
DOI: 10.1111/jmg.12316
Abstract: Handling editor: Doug Robinson Abstract We report the discovery of osumilite in ultrahigh-temperature (UHT) metapelites of the Anosyen domain, southern Madagascar. The gneisses equilibrated at ~930°C/0.6 GPa. Monazite and zircon U–Pb dates record 80 Ma… read more here.
Keywords: radiogenic heat; rates radiogenic; southern madagascar; ultrahigh temperature ... See more keywords
Water-Based Drilling Fluid Containing Bentonite/Poly(Sodium 4-Styrenesulfonate) Composite for Ultrahigh-Temperature Ultradeep Drilling and Its Field Performance
Sign Up to like & getrecommendations! Published in 2020 at "Spe Journal"
DOI: 10.2118/199362-pa
Abstract: The rapidly increasing global oil/gas demand and gradual depletion of shallow reservoirs require the development of deep oil/gas reservoirs and geothermal reservoirs. However, deep drilling suffers from drilling-fluid failures under ultrahigh temperature, which cause serious… read more here.
Keywords: fluid containing; ultrahigh temperature; drilling; drilling fluid ... See more keywords