A new niobate Ba3NaBiNb10O30 was synthesized by the solid state reaction.The reaction mixture was characterized by thermogravimetric and differential thermal analysis (TG-DTA),X-ray diffraction and dielectric constant measurements.The results show that Ba3NaBiNb10O30 has an orthorhombic tungsten bronze structure with space group Cmm2 and the unit cell parameters are a=1.7660(1) nm,a=1.7626(1) nm,c=0.78621(6) nm,Z=4.Ba3NaBiNb10O30 undergoes two phase transitions at 200℃ and 400℃,respectively.
参考文献
| [1] | R R Neurgaonkar;W K Cory .Progress in Photorefractive Tungsten Bronze Crystals[J].Journal of the Optical Society of America B:Optical Physics,1986,3:274. |
| [2] | Zhang Hui;Fang Liang;Yuan Runzhang .Synthesis and Dielectric Properties of a New Tantalate Ba3TiTa4O15[J].物理化学学报,2001,17:747. |
| [3] | Fang Liang;Zhang Hui;Wu Bolin;Yuan Runzhang .Synthesis Crystal Structure and Ferroelectric Properties of A New Niobate: Sr6CrNb9O30[J].Progress in Crystal Growth and Characterization of Materials,2000,40:161-165. |
| [4] | R R Neurgaonkar;Cory W K;Oliver J R et al.Growth and Ferroelectric Properties of Tungsten Bronze Sr2-xxCaxxNaNb5O15 Single Crystals[J].Materials Research Bulletin,1988,23(10):1459. |
| [5] | R R Neurgaonkar;J G Nelson;J R Oliver .Ferroelectric Properties of the Tungsten Bronze M2+6M4+2Nb8O30 Solid Solution Systems[J].Materials Research Bulletin,1992,27:677. |
| [6] | ZHANG Hui,FANG Liang,WU Bolin,YUAN Runzhang.STRUCTURAL AND FERROELECTRIC PROPERTIES OF A NEW NIOBATE: Sr6FeNb9O30[J].武汉理工大学学报(材料科学版)英,2000(04):48-51. |
| [7] | HZhang;L Fang;B L Wu.JCPDS 49-539 Powder Diffraction File[M].ICDD USA,1998 |
| [8] | G Errandonea;H savary;J Schneck .Crystal Narrowing of a Central Peak at the Ferroelectric transition of Ba2NaNb5O15[J].Ferroelectrics,1984,55:19. |
| [9] | M Verwerft;G Van Tendeloo;J Van Landuyt et al.A Complementary Study by Electron Microscopy of Modulated Phases in Ba2NaNb5O15[J].Ferroelectrics,1988,88:27. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%