Humidity dependencies of porous sol-gel and silica glass linear sizes

• Autorzy: Geveluyk S. A. , Doycho I. K. , Prokopovich L. P. , Rysiakiewicz-Pasek E. , Safronsky E. D.
• Konferencja: International Conference on Sol-Gel materials SGM 2001, Rokosowo, Poland
• Języki publikacji: EN

Abstrakty

EN

Measurements of the porous sol-gel and porous silica glass linear size dependencies on humidity of the surrounding atmosphere were performed using the interferometric techniques. The secondary silica gel existing in the voids of silica porous glasses is absent in the sol-gel glasses. The pore size distributions have two peaks for the sol-gel glass while there are several peaks with decreasing amplitudes in the silica porous glass. The differences in the linear sizes moisture sensitivity are explained by the structure of both types of porous materials. The capillary effects prevail in the last ones. The revealed peculiarities of sol-gel glasses make it possible to develop threshold humidity sensors of the new type.

Słowa kluczowe

EN

porous glasses; adsorption; desorption; humidity sensor

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Materials Science
• Rocznik: 2002
• Tom: Vol. 20, No. 2
• Strony: 23--27
• Opis fizyczny: Bibliogr. 11 poz.,

Twórcy

autor

Geveluyk S. A.

autor

Doycho I. K.

autor

Prokopovich L. P.

autor

Rysiakiewicz-Pasek E.

autor

Safronsky E. D.

• Odessa National Mechnikov-University, Ukraine