Results 71 to 80 of about 13,680 (309)
Triggering of 178Hfm2 by photoinduced electron transition [PDF]
Ядерна фізика та енергетика, 2013 We considered the NEET (nuclear excitation by electron transition) as a possible triggering mechanism of the isomer 178Hfm2 during ionization of the L3 atomic shell by x-rays.
A. Ya. Dzyublik
doaj
Hafnium germanium telluride [PDF]
Acta Crystallographica Section E Structure Reports Online, 2008 The title hafnium germanium telluride, HfGeTe(4), has been synthesized by the use of a halide flux and structurally characterized by X-ray diffraction. HfGeTe(4) is isostructural with stoichiometric ZrGeTe(4) and the Hf site in this compound is also fully occupied.
Hoseop Yun, Gyung-Joo Jang
openaire +3 more sources
Synthesis of zirconium(IV) and hafnium(IV) isopropoxide, sec-butoxide and tert-butoxide [PDF]
We revisited the synthesis of zirconium(IV) and hafnium(IV) alkoxides, namely the metal isopropoxide isopropanol complex (M(OiPr)4.iPrOH, M = Zr, Hf) and the metal sec- and tert-butoxide (M(OsBu)4 and M(OtBu)4, M = Zr, Hf).
Jonathan, De Roo +2 more
core +1 more source
Hafnium carbide formation in oxygen deficient hafnium oxide thin films [PDF]
, 2016 On highly oxygen deficient thin films of hafnium oxide (hafnia, HfO2− x) contaminated with adsorbates of carbon oxides, the formation of hafnium carbide (HfCx) at the surface during vacuum annealing at temperatures as low as 600 °C is reported.
Kurian, J. +18 more
core +1 more source
Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys
Advanced Engineering Materials, EarlyView.This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa +9 more
wiley +1 more source
Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy
Advanced Engineering Materials, EarlyView.This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb +6 more
wiley +1 more source
Selective Hydrolysis of Ovalbumin Promoted by Hf(IV)-Substituted Wells-Dawson-Type Polyoxometalate
Frontiers in Chemistry, 2018 The reactivity and selectivity of Wells-Dawson type polyoxometalate (POM), K16[Hf(α2-P2W17O61)2]·19H2O (Hf1-WD2), have been examined with respect to the hydrolysis of ovalbumin (OVA), a storage protein consisting of 385 amino acids.
Alexander V. Anyushin +4 more
doaj +1 more source
Journal of Asian Ceramic Societies, 2022 Biomedical application of Hf for hard tissue repair may be expanded if it can be imparted with bone-bonding ability. Apatite formation in the body is required for artificial materials to bond to bone. We have shown that apatite can form on NaOH- and heat-
Toshiki Miyazaki, Yosuke Sudo
doaj +1 more source
High temperature mechanical properties of polycrystalline hafnium carbide and hafnium carbide containing 13-volume-percent hafnium diboride [PDF]
, 1969 High temperature mechanical properties of polycrystalline hafnium carbide containing 13- volume-percent hafnium ...
Probst, H. B., Sanders, W. A.
core +1 more source
Advanced Engineering Materials, EarlyView.Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies +2 more
wiley +1 more source