溶融石英のガス放出について
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概要
- 論文の詳細を見る
Quantities and composition of gases from commercial fused silica and their raw materials were measured, and the following results were obtained.<BR>a) Quantities of all gases extracted from silicas are least in fused products.<BR>b) Opaque silica evolves much quantity of gas than transparent silica.<BR>c) The composition of gas extracted from a crystalline quartz consists mainly of H<SUB>2</SUB>O and CO<SUB>2</SUB>, but in the case of fused silica H<SUB>2</SUB> takes the place of them.<BR>d) Diffusion constant of H<SUB>2</SUB> in transparent fused silica is<BR><I>D</I>H<SUB>2</SUB>=6. 3×10<SUP>-3</SUP>exp (-11400/RT) (cm<SUP>2</SUP>/sec) <BR>e) Heat tzeatment of quartz in non-redr cibe-atmosphere can decrease the amount of gas evolution remarkably.
- 日本真空協会の論文