ガラス対金属封止における接着機構
スポンサーリンク
概要
- 論文の詳細を見る
The bonding mechanism of glass to metal seals was investigated on practical sealing materials. On three sorts of glasses (soda-lime glass, boro-silicate glass, and lead glass) to which various metal oxides were added, thermal expansion and contact angle against metals, as well as adherence strength, were measured.In soda-lime glass to iron metal seals, the introduction of iron oxide into the glass enhanced the corrosion of the metal surface, lowered the contact angle and strengthened the adherence. The change in the thermal expansion, slight as it was, suggested the loosening of network structure or the increase in “effective” chemical bonding. In these seals, physical or mechanical bonding, as well as chemical bonding, seemed to play an important role.In boro-silicate glass to iron-nickel-cobalt alloy seals, metal oxides introduced into the glass increased the thermal expansion considerably, lowered the contact angle and strengthened the adherence. As compared with the soda-lime glass to iron metal seals, mechanical bonding was rather weak, whereas chemical bonding became stronger. In practical sealing, bonding through oxide interlayer also seemed to participate in the glass to metal adherence.In glass to chromium seals, the introduction of metal oxides into the glass raised the contact angle, but had no effect on the adherent strength. Oxide interlayer formed by the reaction between molten glass and metal, seemed to play an important role.In glass to copper seals, adherence by chemical bonding seemed to be effective, but in practical sealing adherence through oxide interlayer seemed also important.
- 社団法人日本セラミックス協会の論文
- 1966-10-01