欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
利用固相反应法制备了高纯、高致密稀土硅酸盐氧基磷灰石RE9．33（SiO4）6O2（RE=La，Nd，Sm，Gd）陶瓷材料，用XRD对所合成的RE9．33（SiO4）6O2粉末和烧结得到的块体材料进行了分析表征。系统研究了RE9．33（SiO4）6O2陶瓷材料的声子速度和弹性模量，结果表明其平均声速小、弹性模型低。另外，利用Cahill模型对其热导率进行了理论计算，其极限热导率在高温下为1．18～1．22w／m·K。从结构等各方面推断了RE9．33（SiO4）6O2陶瓷材料的低热导可能性。
英文摘要：
High density and pure silicate oxyapatite RE9.33（SiO4）6O2 （RE=La, Nd, Sin, Gd） ceramics were synthesized by solid state reaction. TheRE9.33（SiO4）6O2 powder and sintered RE9.33（SiO4）6O2bulk were observed by XRD. The sound speed and Young＇s modulus were characterized. Besides, the ultimate thermal conductivity were calculated by Cahill model of 1.18-1.22 W/m.K at high temperature. We inferred the possibility of low thermal conductivity of RE9.33（SiO4）6O2 ceramics.
同期刊论文项目
同项目期刊论文
Effect of point defects on the thermal transport properties of (LaxGd1-x)(2)Zr2O7: Experiment and th
GaN Nanofibers Based on Electrospinning: Facile Synthesis, Controlled Assembly, Precise Doping and A
期刊信息
位置：