Results 31 to 40 of about 13,503 (229)
Gels, 2023 In this work, we prepared heat-treated aramid pulp/silica aerogel composites (AP/aerogels) and investigated in detail the feasibility of improving thermal stability and thermal insulation via tailored heat treatment.
Zhi Li +7 more
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Tapered fibers embedded in silica aerogel [PDF]
Optics Letters, 2009 We have embedded thin tapered fibers (with diameters down to 1 microm) in silica aerogel with low loss. The aerogel is rigid but behaves refractively like air, protecting the taper without disturbing light propagation along it. This enables a new class of fiber devices exploiting volume evanescent interactions with the aerogel itself or with dopants or
Xiao, L M +6 more
openaire +3 more sources
Inclusion of [H3PW12O40] and [H4SiW12O40] into a silica gel matrix via "sol-gel" methodology [PDF]
, 2017 Indexación: Web of Science; Scopus.Here we report the inclusion of two Keggin Polyoxometalates (POMs), [H3PW12O40] and [H4SiW12O40], into silica gels by integrating them during the preparation of the SiO2 matrix via "sol-gel" methods.
Carey, D.M. +4 more
core +1 more source
Optics Express, 2010 We have selectively filled the core of hollow photonic crystal fibre with silica aerogel. Light is guided in the aerogel core, with a measured attenuation of 0.2 dB/cm at 1540 nm comparable to that of bulk aerogel. The structure guides light by different mechanisms depending on the wavelength.
Grogan, Michael D W +3 more
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Silica Aerogel Monoliths Derived from Silica Hydrosol with Various Surfactants
Molecules, 2018 Owing to their ultra-low thermal conductivity, silica aerogels are promising thermal insulators; however, their extensive application is limited by their high production cost.
Dong Chen +5 more
doaj +1 more source
Chemical Engineering Transactions, 2020 Silica aerogels have attracted great attention owing to their outstanding properties such as ultralow density, high porosity, high surface area, and low thermal conductivities. Their poor mechanical properties and hydrophilicity constrain their practical
Son T. Nguyen +10 more
doaj +1 more source
Streamlined life cycle assessment of transparent silica aerogel made by supercritical drying [PDF]
, 2012 This is the post-print version of the Article. The official published version can be accessed from the link below - Copyright @ 2011 ElsevierWhen developing sustainable building fabric technologies, it is essential that the energy use and CO2 burden ...
Birks, T +4 more
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Chemical Engineering Transactions, 2017 Aerogels are today the lightest solids and the best thermal insulating materials in the world. Silica aerogels are the most common aerogels. On one hand, silica is inorganic, fire proof and thermal stable up to 900 °C; one the other hand, the material is
D. Pico +4 more
doaj +1 more source
Nanomaterials, 2022 A family of transparent polyisocyanurate-polyurethane (PUR-PIR) aerogels with an interesting combination of physical properties were synthesized. First, their textural properties were analyzed aiming to study catalyst influence on the final porous ...
Beatriz Merillas +2 more
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Morphology and thermal conductivity of model organic aerogels [PDF]
, 1996 The intersection volume of two independent 2-level cut Gaussian random fields is proposed to model the open-cell microstructure of organic aerogels. The experimentally measured X-ray scattering intensity, surface area and solid thermal conductivity of ...
Anthony P. Roberts +4 more
core +2 more sources