Y_(2)O_(3)对高铝硅酸盐玻璃结构和力学性能的影响  

Effects of Y_(2)O_(3) on the Structure and Mechanical Properties of High-alumina Silicate Glass

作　　者：王闻之 郑滔 马艳平[1,2] 李铭涵 赵竞一 段佳岐 王其琛 姜宏 WANG Wenzhi;ZHENG Tao;MA Yanping;LI Minghan;ZHAO Jingyi;DUAN Jiaqi;WANG Qichen;JIANG Hong(State Key Laboratory of Marine Resource Utilization in South China Sea&Special Glass Key Lab of Hainan Province,Hainan University,Haikou 570228,China;Key Laboratory of Materials Modification by Laser,Ion and Electron Beams,Dalian 116024,China)

机构地区：[1]海南大学,南海海洋资源利用国家重点实验室&海南省特种玻璃重点实验室,海南海口570228 [2]大连理工大学,三束材料改性教育部重点实验室,辽宁大连116024

出　　处：《材料科学与工程学报》2024年第5期739-744,772,共7页Journal of Materials Science and Engineering

基　　金：海南省重大科技计划项目(ZDKJ2021049);国家自然科学基金联合基金项目(U22A20124);协同创新项目(XTCX2022HYC26)。

摘　　要：高铝硅酸盐玻璃是一种具有优异光学和力学性能的玻璃材料。本研究采用高温熔融法在高铝硅酸盐玻璃中掺杂摩尔分数为0%~0.5%的Y_(2)O_(3),采用拉曼光谱、红外光谱、X射线光电子能谱、电子万能试验机和显微硬度计等表征手段,探讨了Y_(2)O_(3)掺杂量对高铝硅酸盐玻璃结构、弯曲强度和维氏硬度的影响规律。研究表明,当Y_(2)O_(3)掺杂的摩尔分数小于0.2%时,在高铝硅酸盐玻璃中会作为网络修饰体存在,促进部分铝氧八面体转变为铝氧四面体,补强了网络结构,提高了玻璃的抗弯强度和维氏硬度。当Y_(2)O_(3)掺杂的摩尔分数大于0.2%小于0.5%时,会引起高铝硅酸盐玻璃的结构畸变,破坏网络结构,增加非桥氧的含量,降低玻璃的抗弯强度和维氏硬度。适量的Y_(2)O_(3)可以补强高铝硅酸盐的网络结构,提高力学性能。High-alumina silicate glass is a kind of materials with excellent optical and mechanical properties.Raman spectroscopy,infrared spectroscopy,XPS,electronic universal testing machine and microhardness tester are used to investigate the effects of Y_(2)O_(3) doping on the structure,bending strength and Vickers hardness of high-alumina silicate glass by using the traditional melt cooling method.The results show that when the molar fraction of Y_(2)O_(3) doping is from less than 0.2%,Y_(2)O_(3) exists as a network modifier in high-aluminum silicate glass,promoting part of the aluminum oxygen octahedron to aluminum oxygen tetrahedron,strengthening the network structure,improving the bending strength and Vickers hardness of the glass.When the mole fraction of Y_(2)O_(3) doping is from 0.2% to 0.5%,Y_(2)O_(3) causes a structural distortion of high alumina-silicate glass and destructs the network structure by increasing the content of non-epoxy oxygen,leading to the reduction of bending strength and Vickers hardness of glass.These results demonstrate that the adding of a specific quantity of Y_(2)O_(3) can refine the network structure of high alumina silicates and enhance the mechanical properties of high-alumina silicate.

关 键 词：氧化钇 高铝硅酸盐玻璃 结构 力学性能 

分 类 号：TQ171[化学工程—玻璃工业]