Hafnium-neodymium isotopic composition and nutrients measured on water bottle samples during POLARSTERN cruise ANT-XXIII/1 [PDF]
, 2009 Hafnium-neodymium isotopic composition and nutrients measured on water bottle samples during POLARSTERN cruise ANT-XXIII/
Jörg Dominik Rickli (6979814) +5 more
core +1 more source
Hafnium Oxidation at High Temperature in Steam [PDF]
, 2021 International audienceTo assess the potential impact of using hafnium as absorber material in LWRs in high temperature accidental situations, the oxidation behavior of hafnium was studied up to 1400 °C, at temperature conditions relevant to severe ...
Stuckert, J. +11 more
core +2 more sources
Anodic Behavior of Hafnium in Anhydrous Electrodissolution-Coupled Hafnium Alkoxide Synthesis [PDF]
, 2023 The electrodissolution-coupled hafnium alkoxide (Hf(OR)4, R is alkyl) synthesis (EHS) system, which has significant environmental and economic advantages over conventional thermal methods, serves as a promising system for green and efficient Hf(OR)4 ...
Shuai Li +7 more
core +1 more source
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
doaj +1 more source
Chemical vapor deposition of hafnium carbide and hafnium nitride [PDF]
, 1993 The paper describes alternative high- temperature coatings for carbon fiber reinforced carbon (CFC) and carbon fiber reinforced silicon carbide (C/SiC) comparing CVD of hahium carbide and hafnium nitride.
O. WORMER, G. EMIG, G. SCHOCH
core +1 more source
Separation of hafnium from zirconium by anion exchange [PDF]
, 1961 The results of a systematic survey of the elution of hafnium and zirconium in diluted sulfuric acid, and in solutions of hydrochloric and sulfuric acids in water, are presented.
Hague, John L.; Machlan, Lawrence A.
core +1 more source
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
doaj +1 more source
Atomic scale study of oxidation of hafnium: formation of hafnium core and oxide shell [PDF]
, 2006 Perturbed angular correlation studies on Hafnium foil subjected to annealing in oxygen atmosphere show that there exists three distinct Hf sites which are identified as probe atoms associated with Hafnium metallic clusters, hafnium oxide, and oxygen ...
C. S. Sundar +5 more
core +1 more source
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
doaj +1 more source
Hafnium oxide thin films: Effect of growth parameters on oxygen and hafnium vacancies [PDF]
, 2009 Thin films of hafnium oxide were grown by reactive molecular beam epitaxy. The growth parameters, substrate temperature, and oxidation conditions were varied in a wide range in order to investigate their influence on the thin film characteristics.
H. von Seggern +11 more
core +1 more source