氧化钆对铁磷酸盐玻璃结构的影响.pdf

第28卷第4期
无机化学学报
Vol 28 No 4
2012年4月
CHINESE JOURNAL OF INORGANIC CHEMISTRY
721-726
氧化钆对铁磷酸盐玻璃结构的影响
赖元明1梁晓峰*2钱斌高龙1杨世源尹光福2
(西南科技大学,四川省非金属复合与功能材料重点实验室
省部共建国家重点实验宣培育基地,錦阳621010)
(四川大学材料科学与工程学院,成都610065)
摘要:为探究GdO,含量对40FeO360PO(mol%)基础玻璃结构的影响,采用传统熔融一冷却法制备xCd20-(100-x)(40Fe2Oy
60P2O(0≤x≤12ml%)系列玻璃。利用XRD、SEM、FMR和 Raman等手畏对玻璃结构进行表征,并测试了玻璃密度和维氏硬度。
结果表明,在Cd203含量小于等于4mol%时,易形成均质玻璃,在此范围内,玻璃密度和硬度都随Cd203含量的增加而増加,玻
璃结构以焦磷酸盐结构为主,并伴随少量的正磷酸盐和偏磷酸盐结构。在磷酸盐玻璃结构中,Gd作为网络修饰离子,位于玻璃
网络结构间隙。
关键词:铁磷酸盐;氧化钆;玻璃结构
中图分类号:YQ171;T94
文献标识码:A
文章编号:1001-4861(2012)04-0721-06
Influence of Gadolinium Oxide on Structure of Iron Phosphate Glasses
LAI Yuan-ming IIANG Xiao-feng QIAN Bin
GAO Long YANG Shi-yuan YIN Guang-fu
(State Key Laboratory Cultivation Base for Nonmetal Composite and Functional Materials
Southwest University of Science and echnology, Mianyang Sichuan 621010, China,
School of Materials Science and Engineering, Sichuan Uniwersity, Chengdu 610065, China)
Abstract: The glass amples with composition xgd 0 (100-(40FE20 60P20)(0 12mo1%)have been
prepared by the conventional melt quench method. The structure of the studied glasses have been investigated
using X-ray diraction(RD), Sanin electron microsope(EM Fourier transform infrared spectroscopy
(FTIR )and Raman spectra. The compositions containing up to 4mol% of Gd203 formed glasses. Density and
hardness of the studied glasses increase with addition Gd O content. FTIR and Raman data suggest that the
addition 4mol% G O in the 40FE 0 60 0 (mol%)glass does not produce any fundamental change in structure
of the phosphate network, which consists of predominantly pyrophosphate groups with a small proportion of
metaphosphate and orthophosphate groups. From all these considerations we can conclude that Gd203 enters in
the structure of studied glasses as a network modifier
Key words: iron phosphate; gadolinium oxide; glass structure
铁磷酸盐玻璃具有良好的化学稳定性和较低其他一些重金属元素具有较大的包容量吗,被认为
的熔融温度,对磷酸盐、硫酸盐、氧化铁、氧化铬和是一种新型高放射性核废物玻璃固化载体。研究表
收稿日期:2011-09-16。收修改稿日期:2011-10-27
四省非金属复合与功能材料重点实验室一省部共建国家重点实验室培育基地开放基金(No.]0xfk14);西南科技大学研究生创新基金
N.11yj0)资助项目。
通讯联系人。F,mail:liangxiaofeng@Oswust.edu.cn;会员登记号:S06N4938M1007。