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对BaO-Nb_2O_5系统掺Cr_2O_3和NiO,分别成功地合成了新化合物Ba_6Cr_4Nb_(12)O_(42)和Ba_6Ni_(2.67)Nb_(13.33)O_(42).研究了它们的部分化学和物理特点.X—Ray衍射分析确定了Ba_6Cr_4Nb_(12)O_(42)属六方晶系,空间群为P_(6_3)/mcm,晶胞参数a=b=9.03(1)(?),C=12.001(5)(?);这两种新化合物的x-Ray粉末衍射图谱也成功地被指标化.
The Ba_6Cr_4Nb_ (12) O_ (42) and Ba_6Ni_ (2.67) Nb_ (13.33) O_ (42) have been synthesized successfully for the BaO-Nb_2O_5 system doped with Cr_2O_3 and NiO.The partial chemical and physical properties of these compounds have been studied.X Ray diffraction analysis confirmed that the Ba_6Cr_4Nb_ (12) O_ (42) hexagonal system has a space group of P_ (6_3) / mcm with unit cell parameters of a = b = 9.03 (1) (?); The x-Ray powder diffraction patterns of these two new compounds were also successfully indexed.