Water Diffusion in Zr-Containing Fiberglass Materials at Room Temperature
Science article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Journal |
Journal of the American Ceramic Society
ISSN: 0002-7820
, E-ISSN: 1551-2916
|
| Output data |
Year: 2019,
Volume: 102,
Number: 9,
Pages: 5164-5171
Pages count
: 8
DOI:
10.1111/jace.16411
|
| Tags |
glass fiber, water, diffusion, spectroscopy, isotopic exchange |
| Authors |
Glazneva Tatiana S.
1,2
,
Paukshtis Evgeny A.
1,2,3
,
Sadovskaya Ekaterina M.
1,2
,
Larina Tatyana V.
1
,
Bal'zhinimaev Bair S.
1
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis, Novosibirsk, Russia
|
| 2 |
Novosibirsk State University, Novosibirsk, Russia
|
| 3 |
National Research Tomsk State University, Tomsk, Russia
|
|
Funding (2)
|
1
|
Federal Agency for Scientific Organizations
|
0303-2016-0013
|
|
2
|
Federal Agency for Scientific Organizations
|
0303-2016-0006 (V.44.1.6)
|
Diffusion of water into Zr‐containing silica fiberglass materials was studied at room temperature by infrared spectroscopy. Several types of experiments were performed: (a) rehydration with H2O of fiberglass materials previously calcined in air at 450°C and under vacuum at 180°C; (b) isotopic experiments for uncalcined fiberglass materials using D2O with and without the presence of sodium. Water diffusion coefficients were determined in each case. It was suggested that the transfer of the protons and water molecules occurred by different mechanisms: the protons diffused through the hydroxyl groups via the relay mechanism like in liquid water, whereas water diffused more slowly in the form of molecular water.