| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide high-strength, white and physically-strengthened glass.SOLUTION: The high-strength, white and physically-strengthened glass is: white glass of which the whole light reflectance is 10% or higher when the wavelength of the light is set within 400-800 nm; silicate-based white glass which has a temperature difference (T-T) of 150°C or higher in a thermal expansion curve thereof, in the case that the temperature as Tis defined when the instantaneous thermal expansion coefficient thereof becomes zero and the temperature as Tis defined when the instantaneous thermal expansion coefficient thereof becomes 1.2 times that of the average thermal expansion coefficient thereof at 50°C to 350°C, and which contains ZrOand PO; or binodal phase-separated glass having 40-3,000 nm spherical particle diameter as the average diameter.</p> |
