Properties of Silica Aerogels

Table 2. Typical Values of Physical Properties of Silica Aerogels ...

Hunt, A. J. (1992). Optical and Thermal Properties of Silica Aerogel. In Chemical Processing of Advanced Materials, ed. L. I. Hench and J. K. West. New York John Wiley Sons. [Pg.1235]

Table 2 summarizes the key physical properties of silica aerogels. A range of values is given for each property because the exact value is dependent on the preparative conditions and, in particular, on density. [Pg.43]

TABLE 2 TYPICAL VALUES OF PHYSICAL PROPERTIES OF SILICA AEROGELS... [Pg.44]

The FHH-ffactal approach was also adopted by Ehrburger-Dolle et al. (1994) as part of a systematic study of the properties of silica aerogels. The value Da = 2.1 was evaluated from the linear FHH plot for nitrogen on Aerosil 200, whereas values of 2.64 and 2.95 were obtained from the nitrogen multilayer isotherms on various aerogels. The latter value, which is obviously close to 3, appeared to be consistent with... [Pg.185]

Wagh PB, Begag R, Pajonk GM, Venkasteswara Rao A, and Haranath D. Comparison of some physical properties of silica aerogel monoliths synthesized by different precursors. Mater. Chem. Phys. 1999 57 214-218. [Pg.59]

Nanopore Structure Analysis. - MRI has provided direct visualization of gaseous xenon and methane in the void spaces of aerogels, offering unique information and insights into the pore structure and molecular diffusivities of occluded sorbates. Pore structure and sorption properties of silica aerogels... [Pg.502]

Woignier, J. Phalippou, and R. Vacher, Parameters Affecting Elastic Properties of Silica Aerogels, J. Mater. Res., 4, 688-692 (1989). [Pg.150]

Pajonk GM (2003) Some applications of silica aerogels. Colloid Polym Sci 38 4407-4413 Venkateswara Rao A, Pajraik GM (2001) Effect of methyltrimethoxysilane as a co-precursor on the optical properties of silica aerogels. J Non-Cryst Solids 285 202-209... [Pg.14]

Nguyen BN, Meador MAB, Tousley ME, Shonkwiler B, McCorkle L, Scheiman DA, Palczer A (2009) Tailoring Elastic Properties of Silica Aerogels Cross-Linked with Polystyrene. Appl Mater Interfaces 1 621-630... [Pg.17]

In spite of their low density and brittle characteristics, the mechanical properties of silica aerogels are quite promising for some rare but specific applications. As an illustration, their good compressibility can be used advantageously for absorbing the kinetic energy... [Pg.36]

Deng Z, Wang J, Wei J, Shen J, Zhou B, Chen L (2(XX)) Physical Properties of Silica Aerogels Prepared with Polyethoxydisiloxane. J Sol Gel Sci Technol 19 677-680... [Pg.39]

Gross J, Corrmado PR, Hmbesh LW (1998) Elastic properties of silica aerogels from a new rapid supercritical extraction process. J Non-Cryst Solids 225 282-286... [Pg.41]

Venkastewara Rao A, Nilsen E, Einarsrud MA (2001) Effect of precursOTs, methylation agents and solvents on the physicochemical properties of silica aerogels prepared by almospheric pressure drying method. J Non-Cryst Solids 296 165-171... [Pg.43]

Conroy JFT, Hosticka B, Davis SC, Smith AN, Norris PM (1999) Evaluation of the acoustic properties of silica aerogels MD (Am Soc Mech Eng) 82 25-33... [Pg.44]

Woignier T, PhaUppou J (1989) Scaling law variation of the mechanical properties of silica aerogels. Revue de Physique AppUqufe 24(C4) 179-184... [Pg.44]

Parmenter KE, Milstein F (1998) Mechanical properties of silica aerogels. J Non-Cryst Solids 223 179-189... [Pg.44]

Shewale, P M, Rao, A V, Rao, A P (2008) Effect of different trimethyl silylating agents on the hydrophobic and physical properties of silica aerogels. Appl Surf Sci 254(21) 6902-6907. [Pg.77]

Nguyen B. N., Meador M. A. B., Tousley M. E., Shonkwiler B., McCorkle L., Scheiman D. A., Palczer A. Tailoring elastic properties of silica aerogels cross-linked with polystyrene, ACS Appl. Mater. Interfaces 1,... [Pg.100]

Table 5.1. Collection of t)fpical properties of silica aerogels derived from waterglass by APD...

Parmenter K E, Milstein E (1998) Mechanical properties of silica aerogels. J. Non-Cryst Solids 223 179-189. Tsou P, Brownlee D E, Sandford S A, Horz E, Zolensky M E (2003) Wild 2 and interstellar sample collection and Earth return. J Geophys Res 108(E10) 8113. [Pg.333]

Rosa-Fox NDL, Morales-Florez V, Toledo-Femandez JA, Pinero M, Esquivias L, Keiderling U (2008) SANS study of hybrid silica aerogels under in-situ uniaxial cranpression. J Sol-Gel Sci Techn 45 245-250 Grob J, Schlief T, Fricke J (1993) Ultrasonic evaluation of elastic properties of silica aerogels. Mater Sci Eng A168 235-238... [Pg.533]

Abramoff B, Klein LC (2005) Elastic Properties of Silica Xerogels. J Am Ceram Soc 73 3466-3469 Moner-Girona M, Roig A, Molins E, Martinez E, Esteve J (1999) Micromechanical properties of silica aerogel. Appl Phys Lett 75 653-655... [Pg.533]

Moner-Girona M, Martinez E, Roig A, Esteve J, Molins (2(X)1) Mechanical properties of silica aerogels measured by microindentation influence of sol-gel processing parameters and carbon addition. J Non-Cryst Solids 285 244-250... [Pg.533]

Bemasconi, A., Sleator, T., Posselt, D., Kjems, J.K. and Ott, H.R., Dynamic properties of silica aerogels as deduced from speciflc-heat and thermal-conductivity measurements. Physical Review B, 1992. 45(18) p. 10363-10376. [Pg.564]

Nilsson, O., Fransson, A. and Sandberg, O. Thermal Properties of Silica AerogeL in First International Symposium on Aerogels. 1985. Wurzburg Springer-Verlag. [Pg.564]

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