Results 141 to 150 of about 1,708 (185)
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Synthesis and Properties of TiB2/TiN and TiB2/B4C Films
2004The TiB2/TiN and TiB2/B4C films with a thickness of approximately 1–2 μm were prepared by magnetron non-reactive d.c./r.f. sputtering on Si and stainless steel substrates. Sintered and hot-pressed targets of the individual compounds (TiB2, TiN and B4C) and their mixtures (25/75, 50/50 and 75/25 in weight percents) were used in the film preparation ...
R.A. Andrievski, G.V. Kalinnikov
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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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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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Powder Metallurgy and Metal Ceramics, 2021
High entropy alloys (HEAs) attract more and more attention due to their simple structure, high strength and hardness, good ductility, and excellent softening, oxidation, corrosion, and wear resistance properties. Among the known HEA systems, the AlCoCrFeNi alloy exhibits complicated microstructure and excellent mechanical properties. In this study, the
J. G. Kang, B. T. Yang, J. C. Wei
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High entropy alloys (HEAs) attract more and more attention due to their simple structure, high strength and hardness, good ductility, and excellent softening, oxidation, corrosion, and wear resistance properties. Among the known HEA systems, the AlCoCrFeNi alloy exhibits complicated microstructure and excellent mechanical properties. In this study, the
J. G. Kang, B. T. Yang, J. C. Wei
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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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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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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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Modification mechanism of primary silicon by TiB2 particles in a TiB2/ZL109 composite
Journal of Materials Science, 2014Modification of primary silicon was observed in a hypereutectic Al–Si composite reinforced with TiB2 particles. The primary silicon was found to be refined significantly by TiB2 particles, with the size being reduced from about 25 to 5 μm. Close observation of the microstructure indicates that the TiB2 particles engulfed by the primary silicon acts as ...
Jing Sun +4 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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2008
It was described in a previous paper that fully dense TiB2-20 wt pct sintered bodies were fabricated by glass encapsulation HIP, and their three-point bending strength was as high as 1200 MPa. In this material, grain growth occurred during sintering; the grain sizes of TiB2 and ZrO2 in a sintered (HIP'd) body were 4-6 microns and 2-5 microns ...
S. Torizuka, J. Habada, H. Nishio
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It was described in a previous paper that fully dense TiB2-20 wt pct sintered bodies were fabricated by glass encapsulation HIP, and their three-point bending strength was as high as 1200 MPa. In this material, grain growth occurred during sintering; the grain sizes of TiB2 and ZrO2 in a sintered (HIP'd) body were 4-6 microns and 2-5 microns ...
S. Torizuka, J. Habada, H. Nishio
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