摘要
为探究Gd2O3含量对40Fe2O3-60P2O5(mol%)基础玻璃结构的影响,采用传统熔融-冷却法制备xGd2O3-(100-x)(40Fe2O3-60P2O5)(0≤x≤12mol%)系列玻璃。利用XRD、SEM、FTIR和Raman等手段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Gd2O3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Gd2O3含量的增加而增加,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,Gd3+作为网络修饰离子,位于玻璃网络结构间隙。
The glass samples with composition xGd203-（100-x）（40Fe203-60P2Os） prepared by the conventional melt quench method. The structure of the studied （0 ≤x≤ 12mo1%） have been glasses have been investigated using X-ray diffraction （XRD）, Scanning electron microscope （SEM）, Fourier transform infrared spectroscopy （FTIR） and Raman spectra. The compositions containing up to 4mo1% of Gd203 formed glasses. Density and hardness of the studied glasses increase with addition Gd203 content. FTIR and Raman data suggest that the addition 4mo1% Gd203 in the 40Fe203-60P205 （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.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2012年第4期721-726,共6页
Chinese Journal of Inorganic Chemistry
基金
四川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.10zxfk14)
西南科技大学研究生创新基金(No.11ycjj01)资助项目
关键词
铁磷酸盐
氧化钆
玻璃结构
iron phosphate
gadolinium oxide
glass structure
