Results 11 to 20 of about 43,710 (347)
Microstructure and oxidation resistance of Pd+Zr and Pd+Hf co-doped aluminide coatings deposited on Mar-M247 nickel superalloy [PDF]
Journal of Mining and Metallurgy. Section B: Metallurgy, 2023 Pd+Zr and Pd+Hf co-doped aluminide coatings were deposited on the nickel superalloy Mar-M247 by palladium electroplating followed by zirconization-aluminization or hafnization-aluminization processes.
Romanowska J., Zagula-Yavorska M.
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Zone Recrystallization of Zirconium and Hafnium
East European Journal of Physics, 2021 The work studied the possibility of obtaining of the high-purity samples of zirconium and hafnium by the method of zone recrystallization of round rods with electron-beam heating in a vacuum of 1∙10-4 Pa.
Оleh Е. Коzhevnikov +2 more
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Assessing Origins of End‐Triassic Tholeiites From Eastern North America Using Hafnium Isotopes
Geochemistry, Geophysics, Geosystems, 2020 The driving processes responsible for producing the Central Atlantic Magmatic Province, the Large Igneous Province associated with end‐Triassic rifting of Pangea, remain largely debated.
Lynne J. Elkins +4 more
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Crystal structure of (1,3-di-tert-butyl-η5-cyclopentadienyl)trimethylhafnium(IV)
Acta Crystallographica Section E: Crystallographic Communications, 2015 The molecule of the title organometallic hafnium(IV) compound, [Hf(CH3)3(C13H21)] or [HfMe3(η5-C5H3-1,3-tBu2)], adopts the classical three-legged piano-stool geometry for monocyclopentadienylhafnium(IV) derivatives with the three methyl groups bonded to ...
Adrián Pérez-Redondo +2 more
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High resolution photoemission study of SiOx/Si(111) interface disruption following in situ HfO₂deposition [PDF]
, 2009 We report on an in situ high resolution core level photoemission study of the early stages of interface formation between an ultrathin SiOx layer ( ∼ 0.3 nm) grown on the atomically clean Si(111) surface and a HfO2 dielectric layer.
Brennan, Barry +2 more
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Synthesis of Hafnium(IV) Polyaminoacetates
Molecules, 2021 The interaction of hafnium(IV) salts (oxide-dichloride, chloride, and bromide) with nitrilotriacetic acid (NTA), diethylenetriamminepentaacetic acid (DTPA), 1,2-diaminocyclohexanetetraacetic acid (CDTA), 1,3-dipropylmino-2-hydroxy N,N,N′,N′-tetraacetic ...
Alexandra T. Shulyak +8 more
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Structure Tuning of Hafnium Metal–Organic Frameworks through a Mixed Solvent Approach
Crystals, 2022 The recent development of water-stable metal–organic frameworks (MOFs) has significantly broadened the application scope of this emerging type of porous material. Structure tuning of hafnium MOFs is less studied compared with zirconium MOFs. In this work,
Yanhong Ma, Xin Zhang
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Crystal structure of tetrakis(1,1,1,5,5,5-hexafluoroacetylacetonato)hafnium(IV)
Acta Crystallographica Section E: Crystallographic Communications, 2018 The crystal structure of the title compound, [Hf(C5HF6O2)4], has been determined. The asymmetric unit contains two Hf(hfac)4 molecules (hfac = 1,1,1,5,5,5-hexafluoroacetylacetonate); both are located on general positions and have identical structures ...
W. Franklin Schwandt +2 more
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Hafnium carbide formation in oxygen deficient hafnium oxide thin films
, 2016 On highly oxygen deficient thin films of hafnium oxide (hafnia, HfO$_{2-x}$) contaminated with adsorbates of carbon oxides, the formation of hafnium carbide (HfC$_x$) at the surface during vacuum annealing at temperatures as low as 600 {\deg}C is ...
Alff, L. +8 more
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Molecules, 2020 Tridentate, bis-phenolate N-heterocyclic carbenes (NHCs) are among the ligands giving the most selective and active group 4-based catalysts for the copolymerization of cyclohexene oxide (CHO) with CO2.
Lakshmi Suresh +6 more
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