journal article·1988-12Open access

SAXS study of isothermal sintering of silica aerogel

Thierry Lours, Jerzy Zarycki, Aldo F. Craievich, Michel A. Aegerter, Dayse I. Dos Santos

Journal of Non-Crystalline Solids· Volume 106· Issue 1-3

Abstract

Isothermal sintering of SiO 2 aerogels was followed by small angle X-ray scattering using synchrotron radiation. An improved treatment of SAXS data which takes into account the presence of fluctuations explains the discrepancy previously observed with He-pycnometric methods. The matrix density of the gel is shown to increase in several steps, first by a diffusion-controlled mechanism and then by viscous flow.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Aerogels and thermal insulation · Mesoporous Materials and Catalysis · Inorganic Fluorides and Related Compounds

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (12)

Show source-provided references
1. Processing of gel Glasses
2. 1988 · 100 · 1
3. Prassas · 1986 · 156
4. Craievich · J. of Non-Cryst. Sol. · 1986 · 86 · 39410.1016/0022-3093(86)90027-X ↗
5. Anais do 7° CBECIMAT
6. Dos Santos · J. of Non-Cryst. Sol. · 1987 · 95 & 96 · 114310.1016/S0022-3093(87)80727-5 ↗
7. Lours · J. of Non-Cryst. Sol. · 1987 · 95 & 96 · 115110.1016/S0022-3093(87)80728-7 ↗
8. Mulder · J. of Non-Cryst. Sol. · 1986 · 82 · 14810.1016/0022-3093(86)90123-7 ↗
9. Walrafen · J. Chem. Phys. · 1985 · 82 · 247210.1063/1.448292 ↗
10. Broeker · 1986 · 160
11. Woignier · J. of Non-Cryst. Sol. · 1987 · 93 · 1710.1016/S0022-3093(87)80024-8 ↗
12. Ruland · J. of Applied Cryst. · 1971 · 4 · 7010.1107/S0021889871006265 ↗