DYNAMICS OF WEAKLY CONNECTED SOLIDS - SILICA AEROGELS

被引：37
|
作者：
SCHAEFER, DW [1 ]
BRINKER, CJ [1 ]
RICHTER, D [1 ]
FARAGO, B [1 ]
FRICK, B [1 ]
机构：
[1] INST MAX VON LAUE PAUL LANGEVIN,F-38042 GRENOBLE,FRANCE
来源：
PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 19期
关键词：
D O I：
10.1103/PhysRevLett.64.2316
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Apply neutron spin-echo spectroscopy, we investigate low-energy vibrational excitations in a series of silica aerogels of varying connectivity. Connectivity is adjusted both by precursor solution chemistry and by heat treatment. Polymeric aerogels show fractonlike densities of states, whereas colloidal materials exhibit a peak.
引用
收藏
页码：2316 / 2319
页数：4
相关论文
共 50 条
  • [1] STRUCTURE AND DYNAMICS OF SILICA AEROGELS
    COURTENS, E
    VACHER, R
    PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1992, 65 (02): : 347 - 355
  • [2] DYNAMICS OF WEAKLY CONNECTED LINEAR MACROMOLECULES
    POKROVSKII, VN
    USPEKHI FIZICHESKIKH NAUK, 1992, 162 (05): : 87 - 121
  • [3] Molecular dynamics computer simulations of silica aerogels
    J Non Cryst Solids, (349):
  • [4] Molecular dynamics investigation of the shock response of silica aerogels
    Patil, Sandeep P.
    Shendye, Parag
    Markert, Bernd
    MATERIALIA, 2019, 6
  • [5] Spontaneous Imbibition in Disordered Porous Solids: A Theoretical Study of Helium in Silica Aerogels
    Leoni, F.
    Kierlik, E.
    Rosinberg, M. L.
    Tarjus, G.
    LANGMUIR, 2011, 27 (13) : 8160 - 8170
  • [6] Effects of heterogeneity and global dynamics of weakly connected subpopulations
    Bichara, Derdei M.
    Iggidr, Abderrahman
    Yacheur, Souad
    MATHEMATICAL MODELLING OF NATURAL PHENOMENA, 2021, 16
  • [7] Molecular dynamics and experimental studies of nanoindentation on nanoporous silica aerogels
    Patil, Sandeep P.
    Parale, Vinayak G.
    Park, Hyung-Ho
    Markert, Bernd
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2019, 742 : 344 - 352
  • [8] MOLECULAR-DYNAMICS COMPUTER-SIMULATIONS OF SILICA AEROGELS
    POHL, PI
    FAULON, JL
    SMITH, DM
    JOURNAL OF NON-CRYSTALLINE SOLIDS, 1995, 186 : 349 - 355
  • [9] Soft weakly connected sets and soft weakly connected components
    Al-Ghour, Samer
    Al-Saadi, Hanan
    AIMS MATHEMATICS, 2024, 9 (01): : 1562 - 1575
  • [10] Elasticity and strength of silica aerogels: A molecular dynamics study on large volumes
    Goncalves, William
    Morthomas, Julien
    Chantrenne, Patrice
    Perez, Michel
    Foray, Genevieve
    Martin, Christophe L.
    ACTA MATERIALIA, 2018, 145 : 165 - 174
12345