Search Results - "SCITI, D"

Impact of residual stress on thermal damage accumulation, and Young's modulus of fiber-reinforced ultra-high temperature ceramics by Galizia, P., Zoli, L., Sciti, D.

“…Ultra-high temperature ceramic matrix composites (UHTCMCs) based on ZrB2-matrix reinforced with 45 vol% of unidirectional continuous carbon fibers are studied…”
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Arc-jet wind tunnel characterization of ultra-high-temperature ceramic matrix composites by Mungiguerra, S., Di Martino, G.D., Cecere, A., Savino, R., Silvestroni, L., Vinci, A., Zoli, L., Sciti, D.

“…[Display omitted] •ZrB2-SiC UHTCMC with carbon fibers characterized in supersonic arc-jet wind tunnel.•Surface temperatures exceeded 2400 K at specific total…”
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Qualification and reusability of long and short fibre-reinforced ultra-refractory composites for aerospace thermal protection systems by Mungiguerra, S., Silvestroni, L., Savino, R., Zoli, L., Esser, B., Lagos, M., Sciti, D.

“…Qualification and reusability campaigns were performed on ultra-high temperature ceramic matrix composites (UHTCMCs) made of a ZrB2-SiC matrix with short/long…”
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Toughening effect of non-periodic fiber distribution on crack propagation energy of UHTC composites by Failla, S., Galizia, P., Zoli, L., Vinci, A., Sciti, D.

“…Different configurations of continuous carbon fiber-reinforced ultrahigh temperature ceramics (UHTCs), by combining coatings and matrix, were produced via…”
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Continuous SiC fibers-ZrB2 composites by Zoli, L., Medri, V., Melandri, C., Sciti, D.

“…ZrB2—continuous SiC fiber composites were prepared by vacuum-bag infiltration and hot pressing, using SiC fabric preforms. Vacuum bag infiltration was…”
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Spectral emittance of ceramics for high temperature solar receivers by Azzali, N., Meucci, M., Di Rosa, D., Mercatelli, L., Silvestroni, L., Sciti, D., Sani, E.

“…•Spectral normal emittance of SiC, TaB2 and ZrB2 ceramics is measured up to 850 °C temperature.•Surface features of samples affect the temperature–dependent…”
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Ablation behaviour of carbon fibre ultra-high temperature composites at oblique angles of attack by Baker, B., Venkatachalam, V., Zoli, L., Vinci, A., Failla, S., Sciti, D., Binner, J.

“…[Display omitted] •Angled torch testing of ceramic composites at 90-10° doubled surface shear stress.•Low angles reduced incident surface pressure by…”
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Ultra-refractory ceramics for high-temperature solar absorbers by Sani, E., Mercatelli, L., Francini, F., Sans, J.-L., Sciti, D.

“…It is well known that the efficiency of thermodynamic solar plants increases with working temperature. At present the main limit to temperature upscaling is…”
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Ti3SiC2-Cf composites by spark plasma sintering: Processing, microstructure and thermo-mechanical properties by Lagos, M.A., Pellegrini, C., Agote, I., Azurmendi, N., Barcena, J., Parco, M., Silvestroni, L., Zoli, L., Sciti, D.

“…MAX phases, and particularly Ti3SiC2, are interesting for high temperature applications. The addition of carbon fibers can be used to reduce the density and to…”
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Continuous C fibre composites with a porous ZrB2 Matrix by Sciti, D., Natali Murri, A., Medri, V., Zoli, L.

“…ZrB2–continuous C fibre composites were prepared by vacuum-bag infiltration and hot pressing, using 1D fabric carbon preforms from different commercial…”
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Effect of different sintering aids on thermo–mechanical properties and oxidation of SiC fibers – Reinforced ZrB2 composites by Sciti, D., Silvestroni, L., Saccone, G., Alfano, D.

“…Reinforced zirconium diboride composites containing 15 vol% of Hi Nicalon SiC chopped fibers were hot pressed with addition of various sintering additives,…”
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Microstructure and properties of HfC and TaC-based ceramics obtained by ultrafine powder by Silvestroni, L., Bellosi, A., Melandri, C., Sciti, D., Liu, J.X., Zhang, G.J.

“…HfC and TaC-based ceramics were hot pressed at 1900 °C for 5–20 min starting from synthesized ultrafine powders. The addition of 5 vol.% of MoSi 2 improved the…”
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Effect of surface texturing by femtosecond laser on tantalum carbide ceramics for solar receiver applications by Sciti, D., Trucchi, D.M., Bellucci, A., Orlando, S., Zoli, L., Sani, E.

“…Tantalum carbide, as a Ultra-High Temperature Ceramic, is known to be characterized by intrinsic spectral selectivity, which makes it attractive for novel…”
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Design, fabrication and high velocity oxy-fuel torch tests of a Cf-ZrB2- fiber nozzle to evaluate its potential in rocket motors by Sciti, D., Zoli, L., Silvestroni, L., Cecere, A., Di Martino, G.D., Savino, R.

“…The resistance to ablation of a ceramic nozzle made of a 50vol% Carbon fiber-50vol% ZrB2 composite was evaluated in a high velocity oxy-fuel torch (HVOF) in…”
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Femtosecond laser treatments to tailor the optical properties of hafnium carbide for solar applications by Sciti, D., Silvestroni, L., Trucchi, D.M., Cappelli, E., Orlando, S., Sani, E.

“…HfC-based materials are promising composites for application as solar absorbers. Being a ceramic with some metallic character, HfC shows intrinsic spectral…”
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Spark plasma sintering of Zr-and Hf-borides with decreasing amounts of MoSi2 as sintering aid by SCITI, D, SILVESTRONI, L, NYGREN, M

“…ZrB2- and HfB2-based composites containing 1, 3, and 9 vol% MoSi2 as sintering aid were densified by spark plasma sintering at temperatures ranging from 1700…”
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Ultra-high temperature porous graded ceramics for solar energy applications by Licheri, R., Musa, C., Locci, A.M., Montinaro, S., Orrù, R., Cao, G., Silvestroni, L., Sciti, D., Azzali, N., Mercatelli, L., Sani, E.

“…Porous graded materials (PGMs) consisting of ZrB2 are obtained by Spark Plasma Sintering (SPS) taking advantage of an asymmetric die configuration with…”
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Pressureless sintered in situ toughened ZrB2–SiC platelets ceramics by Sciti, D, Silvestroni, L, Medri, V, Guicciardi, S

“…ZrB2-SiC composites were densified by pressureless sintering with the addition of Si3N4 or MoSi2 at temperatures that induced SiC anisotropic growth from…”
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Round Robin Test for the comparison of spectral emittance measurement apparatuses by Le Baron, E., Raccurt, O., Giraud, P., Adier, M., Barriga, J., Diaz, B., Echegut, P., De Sousa Meneses, D., Capiani, C., Sciti, D., Soum-Glaude, A., Escape, C., Jerman, I., López, G.A., Echániz, T., Tello, M.J., Matino, F., Maccari, A., Mercatelli, L., Sani, E.

“…CSP (Concentrated Solar Power) plants technologies use the concentration of solar energy on a receiver to produce heat and then electricity by a…”
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From random chopped to oriented continuous SiC fibers–ZrB2 composites by Sciti, D., Pienti, L., Natali Murri, A., Landi, E., Medri, V., Zoli, L.

“…•Continuous SiC fiber–reinforced ZrB2 were prepared by vacuum-bag infiltration and hot pressing.•Chemical interaction at the SiC fiber/ZrB2 matrix interface is…”
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