温度・粘度
viscosity-temperature curve
Japanese: 粘度温度曲線
A curve plotting viscosity against temperature. If you can interpret this curve, you can predict what a given glass is capable of at a specific temperature. / Note: The curve shifts to the left or right depending on the composition. High-sodium glasses shift toward the low-temperature end, while borosilicate glasses shift toward the high-temperature end.
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A viscosity-temperature curve is a graph that plots the viscosity of glass at various temperatures. By interpreting this curve, you can predict what a given type of glass will do—such as flow, bend, or solidify—at a specific temperature.
The position shifts to the left or right depending on the composition, with high-sodium types tending toward the lower-temperature side and borosilicate types toward the higher-temperature side.
This entry is written in Japanese by Rei Chikaoka and translated for readers outside Japan. If something reads oddly, the original is the source of truth.