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Synthesis and sintering of TiB2 and TiB2–TiC composite under high pressure
Materials Science and Engineering: A, 2000TiB2 and TiB2x2013;TiC composite compacts with 98x2013;99% density are prepared by high-pressure sintering (HPS) of premixed powders and by high-pressure self-combustion synthesis (HPCS) from the elemental constituents. The sintering and synthesis experiments are carried out at 3 GPa in the temperature and time ranges 2250x2013;2750 K and 5x2013;300 s,
S.K. Bhaumik +3 more
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Microstructure of spark plasma sintered TiB2 and TiB2–AlN ceramics
2019In this research study, the effects of aluminum nitride (AlN) additive on the densification behavior and microstructure development of titanium diboride (TiB2) based ceramic matrix composite were investigated. In this way, a monolithic TiB2 ceramic and a TiB2–5 wt% AlN ultrahigh temperature ceramic composite were fabricated by spark plasma sintering ...
Ahmadi, Zohre +3 more
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Fabrication of TiB2 and TiB2–TiC particulates reinforced magnesium matrix composites
Materials Science and Engineering: A, 2004Abstract A TiB 2 particulate reinforced magnesium matrix composite (MMCs) was fabricated by adding a TiB 2 –Al master alloy processed via self-propagating high-temperature synthesis (SHS) reaction in Al–Ti–B system into molten magnesium and using the stir casting technique.
H.Y. Wang +5 more
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The transition layer in TiB2-GaAs and Au-TiB2-GaAs Schottky contacts
Semiconductors, 2001Spectral characteristics of the transverse bulk photovoltage in the TiB2-GaAs and Au-TiB2-GaAs Schottky contacts for starting samples (unannealed) and samples annealed at 400, 600, and 800°C were measured. The concentration of the dopant for the n-GaAs substrate was 1016 cm−3. It was found that the transition layer is formed in the TiB2-GaAs structures
E. F. Venger +5 more
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Oxidation of monolithic TiB2 and TiB2–20wt.% MoSi2 composite at 850°C
Journal of the European Ceramic Society, 2006Abstract The isothermal oxidation behavior of monolithic TiB 2 and TiB 2 –20 wt.% MoSi 2 composite was evaluated at 850 °C in air. The monolithic TiB 2 exhibited continuous weight gain with increasing time. The TiB 2 –MoSi 2 composite showed continuous weight gain till 16 h and afterwards the weight gain decreased markedly.
T.S.R.Ch. Murthy +4 more
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HREM study of TiB2/NiAl interfaces in a NiAl-TiB2 in-situ composite
Materials Letters, 1994The TiB2/NiAl interfaces in reactive hot-pressing (RHP) processed NiAl-20 vol% TiB2 in-situ composites were studied by means of high-resolution electron microscopy (HREM) including image simulation. There is no consistent orientation relationship between TiB2 particles and the NiAl matrix.
J.Y. Dai +6 more
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Effect of TiB2 Content on Wear Resistance of TiB2/7055 Composite Materials
2018TiB2/7055 composites with volume fractions of 0, 5.17 and 18.23% were prepared by two step method. Firstly, the Al/TiB2 master alloy was prepared by Melt Self-propagating High-temperature Synthesis method. Then, TiB2/7055 composite was prepared by adjusting the alloy elements with using this master alloy as the matrix.
Haijing Wang +7 more
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Wear, 1981
Abstract The wear properties of elctrodeposited coatings of TiB 2 in low speed (5 cm s −1 ) and high speed (30 m s −1 ) sliding applications in contact with hardened steel are reported. An improved method for the preparation of these coatings is described.
J.A. Kirk, D.R. Flinn, M.J. Lynch
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Abstract The wear properties of elctrodeposited coatings of TiB 2 in low speed (5 cm s −1 ) and high speed (30 m s −1 ) sliding applications in contact with hardened steel are reported. An improved method for the preparation of these coatings is described.
J.A. Kirk, D.R. Flinn, M.J. Lynch
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Materials Science and Engineering: A, 1990
Abstract The addition of 20 vol.% titanium diboride in particulate form (1–3 μm) to nickel aluminide (TiB 2 NiAl) results in a twofold increase in the high temperature strength of NiAl. There are at least two theories that have been proposed to account for the high temperature strength of discontinuous reinforced metal matrix composites.
L. Wang, R.J. Arsenault
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Abstract The addition of 20 vol.% titanium diboride in particulate form (1–3 μm) to nickel aluminide (TiB 2 NiAl) results in a twofold increase in the high temperature strength of NiAl. There are at least two theories that have been proposed to account for the high temperature strength of discontinuous reinforced metal matrix composites.
L. Wang, R.J. Arsenault
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Soviet Powder Metallurgy and Metal Ceramics, 1982
The constitution diagram constructed for the quasibinary TiB2-Re system is of the eutectic type, with Teut = 2500 ± 50°K. The eutectic composition is 22 wt.% TiB2 + 78 wt.% Re. The system is characterized by small intersolubility of its components. The eutectic temperature recorded is the highest of any MeIVB2-Re system.
S. S. Ordan'yan +2 more
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The constitution diagram constructed for the quasibinary TiB2-Re system is of the eutectic type, with Teut = 2500 ± 50°K. The eutectic composition is 22 wt.% TiB2 + 78 wt.% Re. The system is characterized by small intersolubility of its components. The eutectic temperature recorded is the highest of any MeIVB2-Re system.
S. S. Ordan'yan +2 more
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