Results 291 to 300 of about 3,015,797 (333)

ChemInform Abstract: SELF‐DIFFUSION OF ERBIUM AND HAFNIUM IN POLYCRYSTALLINE ERBIUM OXIDE‐STABILIZED HAFNIUM OXIDE

Chemischer Informationsdienst, 1983
AbstractDie Kationenselbstdiffusionskoeffizienten in Er2O3 ‐stabilisiertem HfO2 werden mit Hilfe einer Tracermethode im Zusammensetzungsbereich 10‐40 mol‐% Er, O3 und bei Temp. zwischen 1700 und 2030°C untersucht.
R. J. TESCH, C. D. WIRKUS, M. F. BERARD
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Hafnium silicate formation by ultra-violet/ozone oxidation of hafnium silicide

Thin Solid Films, 2003
Abstract We report the room temperature growth of hafnium silicate by ultra-violet/ozone oxidation of hafnium silicide. Hafnium silicide was deposited by magnetron sputtering on hydrogen terminated (1 0 0) Si. The film was then exposed to UV radiation while in an O2 ambient.
P Punchaipetch, G Pant, M Quevedo-Lopez, H Zhang, M El-Bouanani, M.J Kim, R.M Wallace, B.E Gnade   +7 more
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Impact of oxygen vacancy on the ferroelectric properties of lanthanum-doped hafnium oxide

, 2020
The discovery of ferroelectric properties in hafnium oxide has brought back the interest in the ferroelectric non-volatile memory as a possible alternative for low power consumption electronic memories.
D. Islamov, T. M. Zalyalov, O. Orlov, V. Gritsenko, G. Krasnikov   +4 more
semanticscholar   +1 more source

Hafnium Oxide in Tungsten Filaments

Nature, 1925
IT has been known for a long time that perfectly pure tungsten cannot be used for the manufacture of filaments for electric lamps on account of its “off-setting” structure due to recrystallisation. It has been found also that recrystallisation can be essentially influenced by suitable additions.
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Passivation of copper–hafnium thin films using self-forming hafnium oxide

Surface and Coatings Technology, 2013
Abstract The structural changes and electrical properties of copper hafnium (Cu(Hf)) thin films have been investigated. After annealing the Cu(Hf) film in an oxygen atmosphere, the surface of the film was capped with a self-formed HfO2 layer to diminish copper oxidation and reduce the electrical resistivity of the films.
J.S. Fang, Y.T. Chen
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Liquid Capacitor Based on Hafnium Oxide

Key Engineering Materials, 2019
In this work, we synthesize Hafnium (IV) oxide (HfO2) ink from hafnium chloride (HfCl4) powder assisted with deionized water. The poly acrylic acid (PAA) is used as surfactant to decrease the surface tension. Conversion of HfCl4 into HfO2 was detected by Raman spectroscopy and energy dispersive X-ray spectroscopy (EDS) characterization techniques. This
Muhammad Umair Khan, Gul Hassan, Muhammad Asim Raza, Jin Ho Bae   +3 more
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Hafnium oxoneopentoxide as a new MOCVD precursor for hafnium oxide films

Journal of Crystal Growth, 2004
Abstract The reaction between hafnium tetrachloride and neopentyl alcohol in the presence of ammonia lead to hafnium oxoneopentoxide ( 1 ). 1 was characterized by FT-IR, 1 H and 13 C NMR. Single-crystal X-ray diffraction identified it as a trinuclear oxo species Hf 3 (μ 3 -O)(μ 3 -ONep)(μ-ONep) 3 (ONep) 6 .
Abrutis, A., Hubert-Pfalzgraf, L.G., Pasko, S., Bartasyte, A., Weiss, F., Janickis, V.   +5 more
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Effect of hafnium oxide on continuous aluminum oxide-mullite-hafnium oxide composite ceramic fibers

Journal of the European Ceramic Society, 2023
Ke Gai, Qian Wang, Tong Zhao
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Oxidation of Titanium, Zirconium, and Hafnium

Journal of The Electrochemical Society, 1959
A metallographic study of the high-temperature oxidation of titanium, zirconium, and hafaium has showa that alterations in the rate equations relating to such processes may be associated with the establishment of oxygen diffusion gradienis in the surface layers of the metal.
G. R. Wallwork, A. E. Jenkins
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Synthesis, characterization of undoped and copper-doped hafnium oxide nanoparticles by sol–gel method

Journal of Materials Science: Materials in Electronics, 2022
N. Mahendran, S. Johnson Jeyakumar, M. Jothibas, M. Ponnar, A. Muthuvel   +4 more
semanticscholar   +1 more source