Results 131 to 140 of about 286 (167)

Electron Beam Sintering of Zirconium Diboride

Journal of the American Ceramic Society, 2010
Electron beam sintering of ultra‐high‐temperature ceramic material of zirconium diboride (ZrB 2 ) was successfully carried out. Scanning electron microscopy images showed that the sintered layer had smooth surface morphology. Significant grain growth was observed by
Chen‐Nan Sun, Mool C. Gupta, Karen M. B. Taminger   +2 more
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Strength of Zirconium Diboride to 2300°C

Journal of the American Ceramic Society, 2012
The strength of zirconium diboride ( ZrB 2 ) ceramics was measured up to 2300°C, which are the first reported measurements above 1500°C since 1970. ZrB
Eric W. Neuman, Gregory E. Hilmas, William G. Fahrenholtz   +2 more
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Aqueous Gelcasting Synthesis of Zirconium Diboride

Key Engineering Materials, 2014
Zirconium diboride (ZrB2) ceramics were synthesized by Aqueous gelcasting method sintering effects of the additives were examined. The dispersion and rheological properties behavior of water-based gelcasting ZrB2-4wt.%B4C suspensions were characterized by zeta potential and viscosity measurements, respectively.
Jun Ping Wang, Jing Wang, Xiao Bing Zhou, Lei Jing, Penchal Reddy Matli, Qing Huang   +5 more
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Zirconium diboride low resistance layers

European Workshop Materials for Advanced Metallization,, 1997
The ion-plasma sputtering method, as we see it, is perspective for the zirconium diboride thin films production. The literature sources on the zirconium diboride thin films growth characteristics are sparse. The goal of this paper is to investigate the possibility of the zirconium diboride thin films production with the magnetron sputtering method and ...
A.F. Andreeva, V.M. Statsenko, L.A. Klotchkov   +2 more
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High-temperature oxidation of zirconium diboride

Soviet Powder Metallurgy and Metal Ceramics, 1967
A study was carried out of the oxidation kinetics of zirconium diboride in the temperature range 300–1200° C, and the oxide film generated were subjected to x-ray phase and metallographic analyses.
R. F. Voitovich, É. A. Pugach, L. A. Men'shikova   +2 more
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Mechanochemical Processing of Nanocrystalline Zirconium Diboride Powder

Journal of the American Ceramic Society, 2011
Nanocrystalline ZrB 2 powder was prepared by mechanochemical processing of a zirconium (II) dihydride–boron mixture with subsequent annealing from 800°C to 1200°C. The crystallite size and morphology of the synthesized
Shuqi Guo, Chunfeng Hu, Yutaka Kagawa
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Oxidation of zirconium diboride and carbide in radiant heating

Soviet Powder Metallurgy and Metal Ceramics, 1989
Because of the higher density of concentrated fluxes of solar energy, it is possible to produce surface layers using materials which contain new phases and have special structures and properties. The solar rays do not contaminate the treated surface and can produce any thermal regime of interaction of the solid with the gas and subsequent rapid cooling
V. I. Trefilov, V. A. Lavrenko, V. L. Tikush, A. I. Stegnii, A. A. Rogozinskaya, I. I. Timofeeva, A. M. Shatokhin   +6 more
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Producing thermocouple sheaths from zirconium diboride

Refractories, 1968
A technology was developed for making and designing press molds for producing protective sheaths for thermocouples from zirconium diboride containing additions of molybdenum. The use of these sheaths facilitates continuous measurements of steel temperatures for 2.5–4 h.
I. A. Koshkin, V. A. Krat, V. I. Ostroverkhov   +2 more
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Synthesis and characterization of zirconium diboride ceramic precursor

Ceramics International, 2015
Abstract In the present study, ZrB 2 precursor which met the requirements of polymer infiltration-pyrolysis process, was synthesized and characterized. ZrB 2 precursor was synthesized with bis(cyclopentadienyl)zirconium dihydride (Cp 2 ZrH 2 ), borane-dimethyl sulfide complex (BH 3 ·S(CH 3 ) 2 ), and vinyltrimethylsilane ((CH 3 ) 3 Si(CH CH 2 ...
Zhengfang Xie, Ting Zhou, Yanzi Gou
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Optical Properties of Thin Films of Zirconium Diboride

Journal of Vacuum Science and Technology, 1971
The optical constants of the intermetallic compound ZrB2 were obtained at different angle of incidences over the wavelength range 100–600 nm. These were calculated using a computer code based on the Fresnel equations which solves for n and k from reflectance at two angles of incidence and by the well-known Kramers-Kronig relation.
Roger C. Linton, T. K. Mookherji
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