%0 Book Section
%T Aerogel Sintering: From Optical Glasses to Nuclear Waste Containment
%+ Laboratoire Charles Coulomb (L2C)
%+ Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE)
%A Phalippou, Jean
%A Dieudonné, Philippe
%A Faivre, A
%A Woignier, Thierry
%@ 978-3-319-32101-1
%B Handbook of Sol-Gel Science and Technology Processing: Characterization and Applications
%P 1949 - 1969
%8 2018
%D 2018
%R 10.1007/978-3-319-32101-1_56
%K Aerogel
%K Optical Glasses
%K Nuclear Waste
%K Carbon aerogels
%K Pyrolysis
%Z Chemical Sciences
%Z Chemical Sciences/Material chemistryBook sections
%X Aerogels are ultraporous materials with a very low permeability. They exhibithigh specific surface area but, due to their huge porous volume, their mechanical properties are quite poor. Aerogels belong to two main families: inorganic materials as silica, silicates, and a few aluminates and organic aerogels which are easily transformed into carbon aerogels by a simple pyrolysis thermal treatment. In this chapter, we mainly report experiments performed on alcohol-dried aerogels. Due to their broad range of porosity, aerogels canfitin very different applications: from analysis of cosmic dust to nuclear waste containment glasses. Advantages of large porosity are sometimes used directly like in thermal and acoustic insulation, or in catalyzers, but a too high pore volume can also be a drawback like in glass precursor and host matrix. Fortunately, aerogel porosity can be tailored using sintering or room isostatic compression or eventually a combination of both methods. Knowledge in this area allows now to synthesize aerogels with a broad range of porosity and also a very broad range of texture.
%G English
%2 https://amu.hal.science/hal-01929789/document
%2 https://amu.hal.science/hal-01929789/file/PDF-5.pdf
%L hal-01929789
%U https://amu.hal.science/hal-01929789
%~ IRD
%~ UNIV-AVIGNON
%~ CNRS
%~ UNIV-AMU
%~ L2C
%~ IMBE
%~ OSU-INSTITUT-PYTHEAS
%~ MIPS
%~ UNIV-MONTPELLIER
%~ DFME
%~ UM-2015-2021
%~ TEST3-HALCNRS
%~ TEST4-HALCNRS
%~ TEST5-HALCNRS