Visco-elastic relaxations in alkali borates and alkali silicates

J. Kieffer, J. E. Masnik, B. J. Reardon, Jay D Bass

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The Brillouin light scattering technique was used to study short time relaxations in glass forming oxide melts. The line shape analysis of Brillouin spectra yields a complex mechanical modulus. The temperature dependence of this modulus provides insight into the structural disintegration above the glass transition, as well as the thermally activated mechanisms which facilitate the momentum transport in the process of viscous dissipation. A series of binary and ternary alkali borates and alkali silicates have been investigated. The results show fundamental differences in the way alkali cations affect the network structure in borates as compared to silicates. While these cations move relatively freely within the rigid silicate network, their motions are strongly coupled to the network relaxation in borates. The activation energies for cation motion are in good agreement with those found by other methods.

Original languageEnglish (US)
Title of host publicationCrystallization and Related Phenomena in Amorphous Materials
EditorsMatthew Libera, Tony E. Haynes, Peggy Cebe, James E. Dickinson Jr.
PublisherPubl by Materials Research Society
Pages203-208
Number of pages6
Volume321
ISBN (Print)1558992200
StatePublished - 1994
EventProceedings of the 1993 Fall Meeting of the Materials Research Society - Boston, MA, USA
Duration: Nov 29 1993Dec 3 1993

Other

OtherProceedings of the 1993 Fall Meeting of the Materials Research Society
CityBoston, MA, USA
Period11/29/9312/3/93

Fingerprint

Silicates
Borates
Alkalies
Cations
Brillouin scattering
Positive ions
Disintegration
Light scattering
Relaxation time
Oxides
Glass transition
Momentum
Activation energy
Glass
Temperature

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Kieffer, J., Masnik, J. E., Reardon, B. J., & Bass, J. D. (1994). Visco-elastic relaxations in alkali borates and alkali silicates. In M. Libera, T. E. Haynes, P. Cebe, & J. E. Dickinson Jr. (Eds.), Crystallization and Related Phenomena in Amorphous Materials (Vol. 321, pp. 203-208). Publ by Materials Research Society.

Visco-elastic relaxations in alkali borates and alkali silicates. / Kieffer, J.; Masnik, J. E.; Reardon, B. J.; Bass, Jay D.

Crystallization and Related Phenomena in Amorphous Materials. ed. / Matthew Libera; Tony E. Haynes; Peggy Cebe; James E. Dickinson Jr. Vol. 321 Publ by Materials Research Society, 1994. p. 203-208.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kieffer, J, Masnik, JE, Reardon, BJ & Bass, JD 1994, Visco-elastic relaxations in alkali borates and alkali silicates. in M Libera, TE Haynes, P Cebe & JE Dickinson Jr. (eds), Crystallization and Related Phenomena in Amorphous Materials. vol. 321, Publ by Materials Research Society, pp. 203-208, Proceedings of the 1993 Fall Meeting of the Materials Research Society, Boston, MA, USA, 11/29/93.
Kieffer J, Masnik JE, Reardon BJ, Bass JD. Visco-elastic relaxations in alkali borates and alkali silicates. In Libera M, Haynes TE, Cebe P, Dickinson Jr. JE, editors, Crystallization and Related Phenomena in Amorphous Materials. Vol. 321. Publ by Materials Research Society. 1994. p. 203-208
Kieffer, J. ; Masnik, J. E. ; Reardon, B. J. ; Bass, Jay D. / Visco-elastic relaxations in alkali borates and alkali silicates. Crystallization and Related Phenomena in Amorphous Materials. editor / Matthew Libera ; Tony E. Haynes ; Peggy Cebe ; James E. Dickinson Jr. Vol. 321 Publ by Materials Research Society, 1994. pp. 203-208
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