Abstract
The viscosity-temperature behavior in the wide range 10-2∼1012Pa·s were presented for various glass systems: oxide, fluoride, halide, and chalcogenide. There is no single technique that can be utilized to measure the viscosity of glass over the entire range, spaning roughly 14 orders of magnitude. The viscosity was measured by a penetration viscometry method at low-temperature viscosity region (107∼1012 Pa·s) and by a rotational viscometry method at high-temperature viscosity region (10-2∼101 Pa·s). It was found the viscosity can be expressed by the Cohen-Grest equation over a wide temperature. The working point, Tw(103 Pa·s), the softening point, Ts(106.65 Pa·s) and the working range-temperature interval between the Tw and the Ts were determined using the measured viscosity data and the viscosity-temperature equation. We discussed the technical term of fiber drawing from the viewpoint of viscosity-temperature behavior and thermal stability of glass crystalized as a function of heat treatment time, tD at the drawing temperature. The results indicate that silica and lead silicate glasses are prefered for fiber drawing.
| Original language | English |
|---|---|
| Pages (from-to) | 106-110 |
| Number of pages | 5 |
| Journal | Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals |
| Volume | 62 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1998 |
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All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Mechanics of Materials
- Metals and Alloys
- Materials Chemistry
Cite this
Measurement of viscosity of multi-component glasses in the wide range for fiber drawing. / Fujino, Shigeru; Ijiri, Hideyuki; Shimizu, Fumiyuki; Morinaga, Kenji.
In: Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals, Vol. 62, No. 1, 1998, p. 106-110.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Measurement of viscosity of multi-component glasses in the wide range for fiber drawing
AU - Fujino, Shigeru
AU - Ijiri, Hideyuki
AU - Shimizu, Fumiyuki
AU - Morinaga, Kenji
PY - 1998
Y1 - 1998
N2 - The viscosity-temperature behavior in the wide range 10-2∼1012Pa·s were presented for various glass systems: oxide, fluoride, halide, and chalcogenide. There is no single technique that can be utilized to measure the viscosity of glass over the entire range, spaning roughly 14 orders of magnitude. The viscosity was measured by a penetration viscometry method at low-temperature viscosity region (107∼1012 Pa·s) and by a rotational viscometry method at high-temperature viscosity region (10-2∼101 Pa·s). It was found the viscosity can be expressed by the Cohen-Grest equation over a wide temperature. The working point, Tw(103 Pa·s), the softening point, Ts(106.65 Pa·s) and the working range-temperature interval between the Tw and the Ts were determined using the measured viscosity data and the viscosity-temperature equation. We discussed the technical term of fiber drawing from the viewpoint of viscosity-temperature behavior and thermal stability of glass crystalized as a function of heat treatment time, tD at the drawing temperature. The results indicate that silica and lead silicate glasses are prefered for fiber drawing.
AB - The viscosity-temperature behavior in the wide range 10-2∼1012Pa·s were presented for various glass systems: oxide, fluoride, halide, and chalcogenide. There is no single technique that can be utilized to measure the viscosity of glass over the entire range, spaning roughly 14 orders of magnitude. The viscosity was measured by a penetration viscometry method at low-temperature viscosity region (107∼1012 Pa·s) and by a rotational viscometry method at high-temperature viscosity region (10-2∼101 Pa·s). It was found the viscosity can be expressed by the Cohen-Grest equation over a wide temperature. The working point, Tw(103 Pa·s), the softening point, Ts(106.65 Pa·s) and the working range-temperature interval between the Tw and the Ts were determined using the measured viscosity data and the viscosity-temperature equation. We discussed the technical term of fiber drawing from the viewpoint of viscosity-temperature behavior and thermal stability of glass crystalized as a function of heat treatment time, tD at the drawing temperature. The results indicate that silica and lead silicate glasses are prefered for fiber drawing.
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U2 - 10.2320/jinstmet1952.62.1_106
DO - 10.2320/jinstmet1952.62.1_106
M3 - Article
AN - SCOPUS:0031652471
VL - 62
SP - 106
EP - 110
JO - Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
JF - Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
SN - 0021-4876
IS - 1
ER -