Characteristic Evaluation of Lead-Free Sealing Glasses in the Quaternary System V2O5-ZnO-BaO-P2O5

Yoshida Masahiro, Yoshinaka Tadashi, Hidaka Ryuuta, Hatate Yasuo, Kouhara Yoshihiro, Sarata Tsugumitsu

doi:10.1252/kakoronbunshu.31.372

Bibliographic Information

Other Title

Ｖ２Ｏ５‐ＺｎＯ‐ＢａＯ‐Ｐ２Ｏ５系金属酸化物より構成される封着加工用鉛フリーガラスの特性評価
V2O5-ZnO-BaO-P2O5系金属酸化物より構成される封着加工用鉛フリーガラスの特性評価
V2O5 ZnO BaO P2O5ケイキンゾクサンカブツヨリコウセイサレルフウチャクカコウヨウナマリフリーガラスノトクセイヒョウカ

Search this article

Description

Lead-free glasses with a low melting temperature (less than 600°C) and good chemical durability are desirable for the sealing process in ceramic and electronic applications. In this study, V₂O₅, ZnO, BaO, and P₂O₅ were used to prepare lead-free glasses with a low-melting temperature. The glass forming region, glass transition temperature, softening temperature, thermal stability, X-ray property, and thermal expansion property were investigated in detail in the quaternary system. The dependencies of these properties on composition were quantitatively characterized. The lead-free glass, 34.7 mol%V₂O₅, 12.9 mol%ZnO, 20.6 mol% BaO and 31.8 mol% P₂O₅ had high chemical stability, an amorphous structure, high water resistance, and a low melting point. In a sealing examination with a plane fluorescent lamp incorporated in a digital camera, we succeeded in achieving excellent sealing. The prepared lead-free glass exhibited a high performance as a substitute for the commercially available lead glass

Journal

KAGAKU KOGAKU RONBUNSHU

KAGAKU KOGAKU RONBUNSHU 31 (5), 372-376, 2005

The Society of Chemical Engineers, Japan

Keywords

Details 詳細情報について

Export

Report a problem