Novel synthesis and applications of yttrium silicates from a silicone resin containing oxide nano-particle fillers

Multifunctional advanced ceramics from preceramic polymers and nano-sized active fillers

“…Our recent investigations (see Fig. 3d), which follow those on silicones and yttria processed in air to give Y-silicates, 68 show 69 Ce-doped YSiONs are excellent phosphors: our current research, in order to exploit this processing procedure, is currently focused on the introduction of a specific filler (CeO 2 nanoparticles) and on the control of the residual carbon content in the final ceramic product.…”

“…In Fig. 7c and d are shown, respectively, a silicon carbide foam with a Y-monosilicate/mullite coating (from silicone incorporating nano-sized yttria, as active filler, yielding Y-silicates, 68 and micron-sized mullite, as passive filler) for oxidation protection, and a layer based on a Sialon-forming formulation joining two Sialon blocks produced by conventional processing. Values for some properties for selected samples are reported in Table 3.…”

Influence of vinyltriethoxysilane concentration on structural and luminescent characteristics of cerium doped yttrium based silicate phosphors

“…Recently, silicon resins (polysiloxanes) in different solvents (i.e. isopropyl alcohol) mixed with nanosized powders of Y 2 O 3 were used for preparation of mono and yttrium disilicate [26].…”

Fabrication and oxidation resistance of mullite/yttrium silicate multilayer coatings on C/SiC composites

“…Some measures including plasma spray [10], electrophoretic deposition [11], sol-gel [12], slurry brushing, and sintering [13] have been employed to fabricate yttrium silicate coating. Recently, a new route to synthesize yttrium silicate from the pyrolysis of Y 2 O 3 powder filled silicone resin has been reported [14,15]. This route is a promising method because of good adhesive and covering ability of silicone resin, low process temperature, and relatively low cost [16,17].…”

“…This route is a promising method because of good adhesive and covering ability of silicone resin, low process temperature, and relatively low cost [16,17]. Dense Y 2 Si 2 O 7 coating was fabricated on SiC foam by pyrolysis in air of silicone resin containing Y 2 O 3 powders [14], but the oxidation protection for C/SiC composites was not investigated. The Y 2 Si 2 O 7 coating in the study of Liu et al [15] displayed good oxidation protection for C/SiC composites at 1400 ℃.…”