Development of lutetium oxide continuous fibers with excellent mechanical properties

作     者：Yongshuai XIE Ying PENG Youmei WANG Dehua MA Yuan CHENG Luyi ZHU Jiecai HAN Xinghong ZHANG 

作者机构：National Key Laboratory of Science and Technology on Advanced Composites in Special EnvironmentsHarbin Institute of TechnologyHarbin 150001China State Key Laboratory of Crystal MaterialsInstitute of Crystal MaterialsShandong UniversityJinan 250100China 

出 版 物：《Journal of Advanced Ceramics》 (先进陶瓷（英文）)

年 卷 期：2023年第12卷第1期

页      面：24-35页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：supported by the Key Program of the National Natural Science Foundation of China (No.52032003) the National Natural Science for Youth Foundation of China (Nos.52102093 and 52202090) the Shandong University Young Scholars Program (No.2016WLJH27) the Fundamental Research Funds for the Central Universities (No.2082019014) the China Postdoctoral Science Foundation (No.2021M690817) the Heilongjiang Provincial Postdoctoral Science Foundation (Nos.LBH-Z21050 and LBH-Z20144) 

主　　题：lutetium oxide(Lu_(2)O_(3)) continuous fibers tensile strength flexible temperature resistance 

摘      要：The difficulty of reducing the diameter of lutetium oxide(Lu_(2)O_(3))continuous fibers below 50μm not only limits the flexibility of the sample but also seriously affects their application and development in high-energy *** this work,a Lu-containing precursor with high ceramic yield was used as raw material,fiberized into precursor fibers by dry *** pressure-assisted water vapor pretreatment(PAWVT)method was creatively proposed,and the effect of pretreatment temperature on the ceramization behavior of the precursor fibers was *** regulating the decomposition behavior of organic components in the precursor,the problem of fiber pulverization during heat treatment was effectively solved,and the Lu_(2)O_(3) continuous fibers with a diameter of 40μm were *** with the current reported results,the diameter was reduced by about 50%,successfully breaking through the diameter limitation of Lu_(2)O_(3) continuous *** addition,the tensile strength,elastic modulus,flexibility,and temperature resistance of Lu_(2)O_(3) continuous fibers were researched for the first *** tensile strength and elastic modulus of Lu_(2)O_(3) continuous fibers were 373.23 MPa and 31.55 GPa,*** as-obtained flexible Lu_(2)O_(3) continuous fibers with a limit radius of curvature of 3.5-4.5 mm had a temperature resistance of not lower than 1300℃,which established a solid foundation for the expansion of their application form in the field of high-energy lasers.