Research output: Contribution to journal › Article › peer-review
Mechanical properties and structure of a nanoporous sodium borosilicate glass. / Paufler, P.; Filatov, S. K.; Shakhverdova, I. P.; Bubnova, R. S.; Reibold, M.; Müller, B.; Levin, A. A.; Meyer, D. C.
In: Glass Physics and Chemistry, Vol. 33, No. 3, 06.2007, p. 187-198.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Mechanical properties and structure of a nanoporous sodium borosilicate glass
AU - Paufler, P.
AU - Filatov, S. K.
AU - Shakhverdova, I. P.
AU - Bubnova, R. S.
AU - Reibold, M.
AU - Müller, B.
AU - Levin, A. A.
AU - Meyer, D. C.
N1 - Funding Information: This study was supported by the German Fund (DFG Pa 451/23) and the Russian Foundation for Basic Research (project no. 05-03-04002).
PY - 2007/6
Y1 - 2007/6
N2 - The nanohardness (H) and microhardness (H M) of sodium borosilicate glasses with and without nanopores were studied. From nanoindentation measurements, along with the hardness H, the Young's modulus E was derived. While both H and H M varied between ∼10 GPa and ∼7 GPa for the bulk glass, the values for nanoporous specimens were one order of magnitude lower at about 0.5 GPa. The Young's moduli were found to be ∼82 GPa and ∼5 GPa for bulk and porous glasses, respectively. Cracks and pileups were observed, respectively, arising from microindents and nanoindents in the bulk glass, whereas none of them could be detected in the nanoporous material. The molecular structures of both glasses studied by X-ray diffraction are similar.
AB - The nanohardness (H) and microhardness (H M) of sodium borosilicate glasses with and without nanopores were studied. From nanoindentation measurements, along with the hardness H, the Young's modulus E was derived. While both H and H M varied between ∼10 GPa and ∼7 GPa for the bulk glass, the values for nanoporous specimens were one order of magnitude lower at about 0.5 GPa. The Young's moduli were found to be ∼82 GPa and ∼5 GPa for bulk and porous glasses, respectively. Cracks and pileups were observed, respectively, arising from microindents and nanoindents in the bulk glass, whereas none of them could be detected in the nanoporous material. The molecular structures of both glasses studied by X-ray diffraction are similar.
UR - http://www.scopus.com/inward/record.url?scp=34547464748&partnerID=8YFLogxK
U2 - 10.1134/S1087659607030017
DO - 10.1134/S1087659607030017
M3 - Article
VL - 33
SP - 187
EP - 198
JO - Glass Physics and Chemistry
JF - Glass Physics and Chemistry
SN - 1087-6596
IS - 3
ER -
ID: 5252401