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Molten Aluminum-Induced Corrosion and Wear-Resistance Properties of ZrB₂-Based Cermets Improved by Sintering-Temperature Manipulation. [PDF]

Materials (Basel)
Yi H, Ren K, Chen H, Cheng X, Xie X, Liang M, Yin B, Yang Y.   +7 more
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Interatomic potentials for Zirconium Diboride and Hafnium Diboride

Computational Materials Science, 2011
We report on the first interatomic potentials for Zirconium Diboride and Hafnium Diboride. The potentials are of the Tersoff form, and are obtained by fitting to a first-principles database of basic properties of elemental Zr, Hf, B, and the compounds ZrB2 and HfB2. Two variants of the Zr–B potentials have been obtained, and one for Hf–B.
Murray S Daw, John W Lawson, Charles W Bauschlicher   +2 more
exaly   +2 more sources

Synthesis, characterization and use of synthesized fine zirconium diboride as an additive for densification of commercial zirconium diboride powder

Ceramics International, 2016
Abstract Zirconium diboride (ZrB 2 ) was synthesized by a solution-based technique using zirconyl chloride (ZrOCl 2 ·8H 2 O, ZOO), boric acid (H 3 BO 3 , BA) and gum karaya (GK) as the sources of zirconium, boron and carbon, respectively. The initial formation temperature of ZrB 2 was 1200 °C and complete conversion was achieved by 1400 °C ...
Niranjan Patra, Nasrin Al Nasiri, William Edward Lee   +2 more
exaly   +2 more sources

Pretreatment of zirconium diboride powder to improve densification

Journal of Alloys and Compounds, 2013
Abstract In this study, a two-step pretreatment method was used to improve the sinterability of zirconium diboride (ZrB2). Raw powder was initially crushed using a planetary or SPEX mill to an average size of 0.5–0.6 μm. Oxide impurities on the surface of the ZrB2 powder were then removed with a dilute hydrofluoric solution.
Sung-Churl Choi, Sea-Hoon Lee, Hai-Doo Kim   +2 more
exaly   +2 more sources

Zirconium Diboride-Based Composites

Key Engineering Materials, 2001
Two zirconium diboride-based composites were produced and characterised. The chosen starting compositions were: 55wt% ZrB2+41wt%TiB2+4wt% Ni and 83 wt% ZrB2+13 wt% B4C + 4 wt% Ni. The microstructure and mechanical and physical properties of these composites were evaluated.
Monteverde F, Dalle Fabbriche D, Bellosi A   +2 more
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Electrical Resistivity of Titanium Diboride and Zirconium Diboride

Journal of the American Ceramic Society, 1995
The electrical resistivities of hot‐pressed samples of Ti 1‐ x Zr x B 2 ( x
Matiur Rahman, Ching C. Wang, Weihua Chen, Sheikh A. Akbar, Cathleen Mroz   +4 more
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Preparation of zirconium diboride

Soviet Powder Metallurgy and Metal Ceramics, 1965
1. X-ray and microstructural analyses show that zirconium diboride powder obtained in industrial plants by boron carbide reduction in hydrogen at 1800°C contains about 4.94±0.12% ZrB12. 2. A uniphase product (ZrB2) can be obtained by boron carbide reduction below 1650°, which is the lower limit of temperature stability of ZrB12 [16], or ...
M. A. Kuzenkova, P. S. Kislyi
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Refractory Diborides of Zirconium and Hafnium

Journal of the American Ceramic Society, 2007
This paper reviews the crystal chemistry, synthesis, densification, microstructure, mechanical properties, and oxidation behavior of zirconium diboride (ZrB 2 ) and hafnium diboride (HfB 2 ) ceramics.
William G. Fahrenholtz, Gregory E. Hilmas, Inna G. Talmy, James A. Zaykoski   +3 more
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The oxidation of titanium diboride and zirconium diboride at high temperatures

Journal of the Less Common Metals, 1968
Abstract Powdered and compacted TiB2 have been heated in oxygen at pressures of 760–200 mm Hg. The TiB2-O2 reaction rate is parabolic except near 950 °C where it is cubic. The activation energy below 950 °C is 45 kcal/mole and above 950 °C is 31 kcal/mole.
R.J. Irving, I.G. Worsley
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Pressureless Sintering of Zirconium Diboride

Journal of the American Ceramic Society, 2005
Zirconium diboride (ZrB 2 ) ceramics were sintered to a relative density of ∼98% without applied external pressure. Densification studies were performed in the temperature range of 1900°–2150°C.
Adam L. Chamberlain, William G. Fahrenholtz, Gregory E. Hilmas   +2 more
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