Modifications on bulk crystallization of glasses belonging to M2O-CaO-SiO2-ZrO2 system in a 2.45 GHz microwave field

C. Siligardi, C. Leonelli, Y. Fang, D. Agrawal

Research output: Contribution to journalConference article

11 Citations (Scopus)

Abstract

The potential for microwave processing of a single phase material is often limited due to the dependence of dielectric losses upon the chemical bonding and temperature of the material. We will present results showing the effect of microwave absorption on bulk crystallization of glasses belonging to M2O-CaO-SiO2-ZrO2 system (where M = Li, Na, K). The glass samples were devitrified using both microwave and conventional heating. The effect of Li+, Na+, K+ on crystallization is quite remarkable and is a function of ion size. This is true especially in the microwave heating where the important dielectric losses observed in silicate glasses are related to the motion of alkali cations throughout the glass matrix. X-ray diffraction analysis was performed on the powdered samples to determine crystalline phases. Results of microstructure and microanalysis on these glass-ceramic samples will also be presented.

Original languageEnglish (US)
Pages (from-to)429-434
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume430
StatePublished - Dec 1 1996
EventProceedings of the 1996 MRS Spring Symposium - San Francisco, CA, USA
Duration: Apr 7 1996Apr 12 1996

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Crystallization
Microwaves
crystallization
microwaves
Glass
glass
Dielectric losses
dielectric loss
Silicates
Microwave heating
Microanalysis
Alkalies
Glass ceramics
heating
X ray diffraction analysis
microwave absorption
Cations
microanalysis
Positive ions
Ions

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

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abstract = "The potential for microwave processing of a single phase material is often limited due to the dependence of dielectric losses upon the chemical bonding and temperature of the material. We will present results showing the effect of microwave absorption on bulk crystallization of glasses belonging to M2O-CaO-SiO2-ZrO2 system (where M = Li, Na, K). The glass samples were devitrified using both microwave and conventional heating. The effect of Li+, Na+, K+ on crystallization is quite remarkable and is a function of ion size. This is true especially in the microwave heating where the important dielectric losses observed in silicate glasses are related to the motion of alkali cations throughout the glass matrix. X-ray diffraction analysis was performed on the powdered samples to determine crystalline phases. Results of microstructure and microanalysis on these glass-ceramic samples will also be presented.",
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Modifications on bulk crystallization of glasses belonging to M2O-CaO-SiO2-ZrO2 system in a 2.45 GHz microwave field. / Siligardi, C.; Leonelli, C.; Fang, Y.; Agrawal, D.

In: Materials Research Society Symposium - Proceedings, Vol. 430, 01.12.1996, p. 429-434.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Modifications on bulk crystallization of glasses belonging to M2O-CaO-SiO2-ZrO2 system in a 2.45 GHz microwave field

AU - Siligardi, C.

AU - Leonelli, C.

AU - Fang, Y.

AU - Agrawal, D.

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AB - The potential for microwave processing of a single phase material is often limited due to the dependence of dielectric losses upon the chemical bonding and temperature of the material. We will present results showing the effect of microwave absorption on bulk crystallization of glasses belonging to M2O-CaO-SiO2-ZrO2 system (where M = Li, Na, K). The glass samples were devitrified using both microwave and conventional heating. The effect of Li+, Na+, K+ on crystallization is quite remarkable and is a function of ion size. This is true especially in the microwave heating where the important dielectric losses observed in silicate glasses are related to the motion of alkali cations throughout the glass matrix. X-ray diffraction analysis was performed on the powdered samples to determine crystalline phases. Results of microstructure and microanalysis on these glass-ceramic samples will also be presented.

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