Effects of Zn/P ratio on structures and properties of zinc-iron phosphate glasses
来源期刊：中南大学学报(英文版)2013年第1期
论文作者：LI Xiu-ying(李秀英) YANG Hua-ming(杨华明) REN Yu-xi(任宇曦)
文章页码：44 - 49
Key words：zinc-iron phosphate glass; sealing; structure; water durability; characterization temperature
Abstract: Effects of Zn/P ratio on the structures and properties of glasses with the general composition of (80-x)ZnO-20Fe2O3-xP2O5 (x=40, 45, 50, 55, 60) (molar fraction, %) were investigated. Glass structure was measured by infrared absorption spectrum. Glass density (ρ) was measured by the Archimedes method. Coefficients of thermal expansion (α) and characterization temperature were obtained by a dilatometer. Water durability of each glass was estimated from the dissolution rate（DR）in water at 90 °C for 24 h. With increasing Zn/P ratio, water durability of zinc-iron phosphate glasses increases dramatically without large increase in the characterization temperature. (80-x)ZnO-20Fe2O3-xP2O5 glasses with 0.3≤Zn/P≤0.5 are suit for low-to-mid temperature sealing application for substrates with α<8.0×10-6 °C-1.
LI Xiu-ying(李秀英), YANG Hua-ming(杨华明), REN Yu-xi(任宇曦)
(School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China)
Abstract:Effects of Zn/P ratio on the structures and properties of glasses with the general composition of (80-x)ZnO-20Fe2O3-xP2O5 (x=40, 45, 50, 55, 60) (molar fraction, %) were investigated. Glass structure was measured by infrared absorption spectrum. Glass density (ρ) was measured by the Archimedes method. Coefficients of thermal expansion (α) and characterization temperature were obtained by a dilatometer. Water durability of each glass was estimated from the dissolution rate（DR）in water at 90 °C for 24 h. With increasing Zn/P ratio, water durability of zinc-iron phosphate glasses increases dramatically without large increase in the characterization temperature. (80-x)ZnO-20Fe2O3-xP2O5 glasses with 0.3≤Zn/P≤0.5 are suit for low-to-mid temperature sealing application for substrates with α<8.0×10-6 °C-1.
Key words:zinc-iron phosphate glass; sealing; structure; water durability; characterization temperature
