You are here

Home

HTMat

High Temperature Materials

Microstructure and mechanical properties of milled fibre/SiC multilayer composites prepared by tape casting and pressureless sintering

n the present work, milled carbon fibre with high mechanical properties was used to reinforce silicon carbide, and Csf/SiC multilayer composites were prepared by tape casting and pressureless sintering. The milled C fibres were firstly dispersed in solvents with the aid of dispersant (Triton X-100) and then mixed with SiC slurry to make green Csf/SiC tapes to limit fibre breakage.

Reactivity and Microstructure of Al2O3-Reinforced Magnesium-Matrix Composites

Performances of metal matrix composites (MMCs) rely strongly on the distribution of particles within the metal matrix but also on the chemical reaction which may occur at the liquid-solid interfaces. This paper presents the chemical reaction between aluminum based particles Al2O3 and Al2O3-AlOOH with magnesium alloys matrixes AZ91 and EL21, respectively, and studies the microstructure of these reinforced composites.

Thermophysical Properties of Short Carbon Fiber/SiC Multilayer Composites Prepared by Tape Casting and Pressureless Sintering

Csf/SiC multilayer composites for thermal conductivity (TC) test in three directions were successively prepared by tape casting and pressureless sintering. After 1500°C/5 h oxidation treatment, short carbon fibers were oxidized which produced many pores. However, a core area, which was composed by short carbon fiber, SiC, and few SiO2, was still observed. TC properties of Csf/SiC multilayer composites were highly anisotropic. The TC was decreased with the increase in fiber amount.

Oxidation behavior of ZrB2/SiC laminates: Effect of composition on microstructure and mechanical strength

SiC–ZrB2 ceramic laminates with different SiC:ZrB2 ratios were prepared by tape casting, binder burnout and pressureless sintering at 2200 °C in view of their application in thermal protection systems. Their oxidation behavior in air was investigated by TGA up to 1600 °C and by long term oxidation tests at 1500 and 1600 °C. Both microstructure and mechanical features of laminates were compared, before and after oxidation.

Cerexpro

Concept and project objectives

Great 2020

L’obiettivo che la ricerca in campo aeronautico si pone da sempre è quello di soddisfare le richieste di un settore in costante crescita, offrendo standard qualitativi sempre più alti e adottando soluzioni sostenibili sotto il profilo ecologico ed economico.

Un impegno continuo che negli anni ha guidato l’evoluzione del settore, attraverso veloci progressi tecnologici, che hanno reso il trasporto aereo sempre più sicuro, comodo ed efficiente.
Oggi al mondo dell’aeronautica si chiede un nuovo e importante passo in avanti.

Pages