Results 61 to 70 of about 251,676 (225)
High Cooling Rate for LRE123 Stoichiometry Control in Preparation of High‐Tc Bulk Superconductors
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.This review presents the cooling‐rate‐control melt‐growth (CRCMG) method as an effective strategy for regulating LRE123 cation stoichiometry. By accelerating the cooling rate during crystallization, oxygen vacancies are increased in the growing lattice, which suppresses LRE3+/Ba2+ substitution and yields near‐ideal 1:2:3 stoichiometry with enhanced ...
Yanhan Zhu, Xin Yao
wiley +1 more source
European Journal of Inorganic Chemistry, EarlyView.Strongly alkaline hydroflux media commonly yield hydroxide‐rich rare‐earth compounds. In contrast, K6[Y(VO4)3]·2H2O, its anhydrate K6[Y(VO4)3], and Na3[Y(AsO3)2] show that the low activity of water in the medium can favorcondensation into extended hydroxide‐free Y─O─V and Y─O─As networks instead of isolated hydroxo complexes.
Yuxi Li, Michael Ruck
wiley +1 more source
A Comprehensive Review of Fault‐Current Limiter Technologies for Smart and Resilient Power Systems
Energy Science &Engineering, EarlyView.This review compares superconducting, solid‐state, and hybrid fault‐current limiters (FCLs) for modern alternating current, direct current, and hybrid grids. It shows that optimal FCL selection depends on fault characteristics, network configuration, voltage level, protection coordination, and resilience requirements rather than on a universally ...
Abdelrahman Farghly +5 more
wiley +1 more source
MetalsThe self-passivating yttrium-containing WCr alloy has been developed and researched as a potential plasma-facing armour material for fusion power plants.
Jie Chen +11 more
doaj +1 more source
Synthesis and Certification of Lanthanum Oxide Extracted from Monazite Sand
Indonesian Journal of Chemistry, 2020 Synthesis and certification of lanthanum oxide extracted from monazite sand have been carried out. This research aimed to increase the added value of monazite sand and obtain the lanthanum oxide in-house certified reference material (CRM).
Samin Samin +3 more
doaj +1 more source
Influence of Yttrium on the Thermal Stability of Ti-Al-N Thin Films [PDF]
, 2010 Ti(1-x)Al(x)N coated tools are commonly used in high-speed machining, where the cutting edge of an end-mill or insert is exposed to temperatures up to 1100 degrees C.
Kiener, Daniel +7 more
core +1 more source
Geological Journal, EarlyView.U–Pb isotope and trace element geochemistry of apatite from carbonatites of Peshawar Plain Alkaline Igneous Province, western Himalaya shows Permo‐Carboniferous magmatism, an additional magmatic pulse during Cretaceous, and post‐magmatic hydrothermal/metasomatism during Oligocene. ABSTRACT U–Pb isotope and trace element geochemistry of apatite combined
Mehboob ur Rashid +9 more
wiley +1 more source
Managing and visualising geochemical data for tephra correlation with the IntChron Integration Tool
Journal of Quaternary Science, EarlyView.ABSTRACT There is now a wealth of glass‐shard geochemical data for volcanic ash (tephra) layers from a wide range of volcanoes and eruptions, providing invaluable datasets for tephrochronology. However, compilation of published data to assess tephra correlations leads to large files and requires careful management.
Victoria C. Smith +5 more
wiley +1 more source
SELECTION OF OXIDES FOR STABILIZATION OF ZIRCONIUM DIOXIDE WHILE OBTAINING THERMAL BARRIER COATINGS
Наука и техника, 2015 The paper analyzes selection of oxides and describes in details a majority of oxide systems which are applicable for stabilization of zirconium dioxide while obtaining thermal barrier coatings with maximum amount of tetragonal phase.
V. V. Okovity
doaj
Core-multishell globular oxidation in a new TiAlNbCr alloy at high temperatures
Scientific Reports, 2017 Oxidation resistance is one of key properties of titanium aluminide (TiAl) based alloys for high-temperature applications such as in advanced aero-engines and gas turbines.
S. Q. Tang +5 more
doaj +1 more source