热处理工艺对Ca_(0.7)Ti_(0.7)La_(0.3)Al_(0.3)O_(3)陶瓷微观组织形貌及微波介电性能的影响研究  

Effect of Heat Treatment Process on Microstructure and Microwave Dielectric Properties of Ca_(0.7)Ti_(0.7)La_(0.3)Al_(0.3)O_(3)Ceramics

在线阅读下载全文

作  者:李魏 晁鑫 张世栋 王震 徐越 LI Wei;CHAO Xin;ZHANG Shi-dong;WANG Zhen;XU Yue(School of Materials Science and Engineering,QiLu University of Technology(Shandong Academy of Sciences),Jinan 250353,China)

机构地区:[1]齐鲁工业大学(山东省科学院)材料科学与工程学院,济南250353

出  处:《齐鲁工业大学学报》2021年第2期8-13,共6页Journal of Qilu University of Technology

基  金:国家自然科学基金(61805125);齐鲁工业大学2019年校级大学生创新创业训练计划项目(xj201910431094,xj201910431102);山东省自然科学基金(ZR2018LE003)。

摘  要:本文通过传统固相反应法制备了Ca_(0.7)Ti_(0.7)La_(0.3)Al_(0.3)O_(3)(CTLA)陶瓷,研究了不同烧结气氛对Ca_(0.7)Ti_(0.7)La_(0.3)Al_(0.3)O_(3)(CTLA)陶瓷的致密度、晶体结构、显微组织形貌和微波介电性能的影响。烧结气氛分别为:1)空气;2)N_(2)气氛下,氧分压:0.01 ppm;3)N_(2)气氛下,氧分压:200 ppm;4)体积分数N_(2)∶H_(2)=1∶1保护还原气氛烧结。结果表明:在烧结气氛为N_(2)∶H_(2)=1∶1保护还原气氛时,Q×f值最大;当烧结气氛为N_(2),氧分压:200 ppm时,介电常数最大。In this paper,Ca_(0.7)Ti_(0.7)La_(0.3)Al_(0.3)O_(3)(CTLA)ceramics were prepared by the traditional solid-phase reaction sintering method,and the influence of density,structure and microstructure of Ca_(0.7)Ti_(0.7)La_(0.3)Al_(0.3)O_(3)(CTLA)ceramics with different sintering atmospheres on microwave dielectric properties were studied.The sintering atmosphere is:1)air;2)N_(2)atmosphere,oxygen partial pressure:0.01 ppm;3)N_(2)∶H_(2)=1∶1 sintering in a protective reducing atmosphere;4)N_(2)atmosphere,oxygen Partial pressure:200 ppm,respectively.The results show that:when the sintering atmosphere is N_(2)∶H_(2)=1∶1 protective reducing atmosphere,the Q×f value is the largest;when the sintering atmosphere is N2 and the oxygen partial pressure is 200 ppm,the dielectric constant is the largest.

关 键 词:固相反应法 CaTiO_(3) LaAlO_(3) 烧结气氛 微波介电陶瓷 

分 类 号:TQ174.79[化学工程—陶瓷工业]

 

参考文献:

正在载入数据...

 

二级参考文献:

正在载入数据...

 

耦合文献:

正在载入数据...

 

引证文献:

正在载入数据...

 

二级引证文献:

正在载入数据...

 

同被引文献:

正在载入数据...

 

相关期刊文献:

正在载入数据...

相关的主题
相关的作者对象
相关的机构对象