Assertion: cristobalite's expansion coefficient | /r/AtLocation | same order
Facets:
value: with high heat resistance
type: OTHER
Source sentences:
text: The present inventors have discovered facts that a silica glass not only with a thermal expansion coefficient which is on the same order with that of a vapor-deposited thin film covering the surface of the silica glass jig, but also with high heat resistance is produced with ease by heating to melt a mixture of two or more kinds of crystalline silicon dioxide powder which have different melting points from each other by 20 °C or more at a temperature in a range.