Results 51 to 60 of about 232,067 (190)

Gelation of n3p3[nh(ch2)3si(oet)3]6-n [x]n x = nh(ch2)3si(oet)3, nch3(ch2)3cn and oc6h4(ch2)cn, n = 0 or 3 at the liquid/air/interface [PDF]

open access: yes, 2010
Indexación: ScieloThe compounds N3P3[NH(CH2)3Si(OEt)3]6 (1), N3P3[NH(CH2)3Si(OEt)3]3[NCH3(CH2)3CN]3 (2) and N3P3[NH(CH2)3Si(OEt)3]3 [HOC6H4(CH2)CN]3 (3) undergo slow gelation at the interface oil/air at low temperatures to give perfect gels G1, G2 and G3
Aguirre, Pedro   +3 more
core   +2 more sources

The Sol–Gel Process, a Green Method Used to Obtain Hybrid Materials Containing Phosphorus and Zirconium

open access: yesGels
The sol–gel process is a green method used in the last few decades to synthesize new organic–inorganic phosphorus-containing hybrid materials. The sol–gel synthesis is a green method because it takes place in mild conditions, mostly by using water or ...
Petru Merghes   +4 more
doaj   +1 more source

SERS Detection of Graphene Oxide in Acid Catalyzed Sol-Gels [PDF]

open access: yes, 2017
Silica sol-gel and aerogel substrates were synthesized using a modified acid catalyzed hydrolysis of tetramethyl orthosilicate method that incorporated graphene oxide and silver nanoparticles into the matrix.
Atkinson, Elizabeth J.O.   +1 more
core   +1 more source

Nanocomposite organomineral hybrid materials. Part 2 [PDF]

open access: yesНанотехнологии в строительстве, 2016
The paper addresses the issues of alkoxide method of sol-gel synthesis and non-hydrolytic method of sol-gel synthesis and colloidal method of sol-gel synthesis.
KUDRYAVTSEV Pavel Gennadievich   +1 more
doaj   +1 more source

The synthesis of thermochemically stable single phase lanthanum titanium aluminium oxide [PDF]

open access: yes, 2016
Lanthanum titanium aluminium oxide (LaTi2Al9O19, LTA) synthesized by solid state reaction has been proven to be a promising thermal barrier material. However, LTA synthesized via solid state reaction requires a high processing temperature of at least ...
Choy, K-L, Zhang, P
core   +1 more source

Study on Crystallization and Magnetic Property Deviation of Ni-Zn-Cu Ferrite Depending on the State of the Starting Material in the Annealing Process

open access: yesAdvances in Materials Science and Engineering, 2017
The spinel structure of the nanosize powder (Ni0.3Zn0.3Cu0.4Fe2O4) substituted by Ni, Zn, and Cu was fabricated by the sol-gel process. Changes in weight, crystal formation, and magnetic properties were observed by XRD, TG-DTA, VSM in the annealing ...
Su-won Yang   +2 more
doaj   +1 more source

Fiber-coupled erbium microlasers on a chip [PDF]

open access: yes, 2003
An erbium-doped, toroid-shaped microlaser fabricated on a silicon chip is described and characterized. Erbium-doped sol-gel films are applied to the surface of a silica toroidal microresonator to create the microcavity lasers.
Armani, D. K., Vahala, K. J., Yang, Lan
core   +1 more source

Nanosized Sodium-Doped Lanthanum Manganites: Role of the Synthetic Route on their Physical Properties

open access: yes, 2003
In this paper we present the results of the synthesis and characterisation of nanocrystalline La1-xNaxMnO3+delta samples. Two synthetic routes were employed: polyacrylamide-based sol-gel and propellant synthesis.
Balcells L.   +30 more
core   +1 more source

Effect of cerium concentration on corrosion resistance and polymerization of hybrid sol–gel coating on martensitic stainless steel [PDF]

open access: yes, 2012
Stainless steels are increasingly used in the aeronautics field for the manufacture of structural parts. One of them, the X13VD martensitic stainless steel (X12CrNiMoV12-3), known for its good mechanical properties, has a poor corrosion resistance in ...
Ansart, Florence   +3 more
core   +3 more sources

Sol–Gel Microcapsulation in Silica-Based Particles: A Comparative Study [PDF]

open access: yes, 2011
We compare the two main sol-gel/emulsion methods to prepare silica-based microparticles doped with actives. Moreover, we analyze the morphpology of the resulting particles varying also the nature of the organosilane, and the pH of the sol-gel process ...
ALONZO, Giuseppe   +3 more
core   +1 more source

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