Search Results - "Salvini, V.R."

Rheological performance of high alumina nano-bonded refractory castables containing carboxylic acids as additives by Nouri-Khezrabad, M., Salvini, V.R., Luz, A.P., Golestani-Fard, F., Rezaie, H.R., Pandolfelli, V.C.

“…This paper evaluated the role played by citric acid and gallic acid in high alumina colloidal silica-bonded castables. The addition of citric acid to three…”
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CA6-based macroporous refractory thermal insulators containing mineralizing agents by Borges, O.H., Santos, T., Salvini, V.R., Pandolfelli, V.C.

“…Aiming at reducing the temperature of CaO.6Al2O3 (CA6) formation, SiO2, ZnO, and TiO2 were evaluated as mineralizing agents in an Al2O3-CaCO3 based macroporous…”
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Al2O3–CaO macroporous ceramics containing hydrocalumite-like phases by Borges, O.H., Santos, T., Salvini, V.R., Pandolfelli, V.C.

“…A mechanism to explain the lower onset strengthening temperature induced by CaCO3 in alumina-based macroporous ceramics is proposed, which relies on…”
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Direct foaming of Al2O3-based macroporous ceramics containing pre-foamed colloidal alumina, calcite and CAC suspension by Finhana, I.C., Borges, O.H., Santos, T., Salvini, V.R., Pandolfelli, V.C.

“…Adding pre-foamed colloidal alumina to ultrastable Al2O3-stabilised foams can be a path towards partially counteracting the firing shrinkage of these materials…”
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Macroporous high-temperature insulators physical properties by in situ CA6 formation: Does the calcium source matter? by Borges, O.H., Santos Junior, T., Oliveira, R.R.B., Salvini, V.R., Pandolfelli, V.C.

“…Aiming the in situ formation of CA6 (CaO·6Al2O3) at alumina-based macroporous insulators, distinct Ca2+ sources and contents were used and their effect on some…”
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Development of plaster foam for thermal and acoustic applications by Arroyo, F.N., Christoforo, A.L., Salvini, V.R., Pelissari, P.I.B.G.B., Pandolfelli, V.C., Luz, A.P., Cardoso, C.A.

“…•Microsilica increase mechanical properties without affect acoustic properties.•Higher microsilica percentage, impact in a porosity smaller.•With 5% of…”
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Amino acid-driven hydrophobization of alumina and production of particle stabilised foams in a broader pH range by dos Santos, T., Pereira, C.I., Gonçalves, R., Fernandes, C.H.M., Salvini, V.R., Pandolfelli, V.C.

“…The interaction of amino acids (glycine, L-valine, L-isoleucine and L-leucine) with alumina surface was studied to induce partial hydrophobization and…”
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Gluconate action in the hydration of calcium aluminate cements: Theoretical study, processing of aqueous suspensions and hydration reactivation by dos Santos, T., Pereira, C.I., Gonçalves, R., Salvini, V.R., Zetterström, C., Wöhrmeyer, C., Parr, C., Pandolfelli, V.C.

“…Considering the production of stable CAC aqueous suspensions, this work addressed the action of gluconate anion as a Ca2+ complexing agent and retarder of CAC…”
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Direct foaming of macroporous ceramics containing colloidal alumina by Finhana, I.C., Machado, V.V.S., Santos, T., Borges, O.H., Salvini, V.R., Pandolfelli, V.C.

“…Liquid foams containing Al2O3 nanoparticles were obtained after direct foaming of a colloidal alumina suspension with ammonium stearate. These systems were…”
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Calcium aluminate cement aqueous suspensions as binders for Al2O3-based particle stabilised foams by Santos, T., Machado, V.V.S., Borges, O.H., Salvini, V.R., Parr, C., Pandolfelli, V.C.

“…Macroporous refractory ceramics were prepared with Al2O3-based particle stabilised foams in which ceramic particles were partially hydrophobized with propionic…”
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Developing nano-bonded refractory castables with enhanced green mechanical properties by Nouri-Khezrabad, M., Luz, A.P., Salvini, V.R., Golestani-Fard, F., Rezaie, H.R., Pandolfelli, V.C.

“…Applying colloidal silica suspensions as a binder source for refractory castables has been of great interest in recent years. Nevertheless, the resultant low…”
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Why foams containing colloidal hydrophilic particles are unstable? by Vivaldini, D.O., Luz, A.P., Salvini, V.R., Pandolfelli, V.C.

“…In this work, properties from colloidal silica containing foam systems were analyzed and correlated to the fundamental concepts of the particle adsorption at…”
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Road maps for processing foams containing particles by Vivaldini, D.O., Salvini, V.R., Luz, A.P., Pandolfelli, V.C.

“…This work focuses on the development of tools for processing foams containing particles. By defining a foam stability index model and correlating it with the…”
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