人工晶体学报
人工晶體學報
인공정체학보
2009年
6期
1532-1535,1539
,共5页
K_2Ln_2Ti_3O_(10)%X射线衍射%晶体结构%晶胞参数
K_2Ln_2Ti_3O_(10)%X射線衍射%晶體結構%晶胞參數
K_2Ln_2Ti_3O_(10)%X사선연사%정체결구%정포삼수
K_2Ln_2Ti_3O_(10)%X-ray diffraction%crystal structure%crystallographic data
固相反应法合成了具有钙钛矿型层状的化合物K_2Eu_2Ti_3O_(10) 和K_2Gd_2Ti_3O_(10) ,利用X射线粉晶衍射仪对镧系元素的钙钛矿型层状化合物K_2Ln_2Ti_3O_(10) (Ln=Eu,Gd)进行结构分析,获得其X射线粉晶衍射数据.X射线衍射分析结果表明:K_2Ln_2Ti_3O_(10) (Ln= La,Pr,Sm,Eu,Gd )为四方晶系,空间群I4/mmm.并得到其晶胞参数及其镧系元素的钙钛矿型层状化合物K_2Ln_2Ti_3O_(10) 晶体结构变化规律.
固相反應法閤成瞭具有鈣鈦礦型層狀的化閤物K_2Eu_2Ti_3O_(10) 和K_2Gd_2Ti_3O_(10) ,利用X射線粉晶衍射儀對鑭繫元素的鈣鈦礦型層狀化閤物K_2Ln_2Ti_3O_(10) (Ln=Eu,Gd)進行結構分析,穫得其X射線粉晶衍射數據.X射線衍射分析結果錶明:K_2Ln_2Ti_3O_(10) (Ln= La,Pr,Sm,Eu,Gd )為四方晶繫,空間群I4/mmm.併得到其晶胞參數及其鑭繫元素的鈣鈦礦型層狀化閤物K_2Ln_2Ti_3O_(10) 晶體結構變化規律.
고상반응법합성료구유개태광형층상적화합물K_2Eu_2Ti_3O_(10) 화K_2Gd_2Ti_3O_(10) ,이용X사선분정연사의대란계원소적개태광형층상화합물K_2Ln_2Ti_3O_(10) (Ln=Eu,Gd)진행결구분석,획득기X사선분정연사수거.X사선연사분석결과표명:K_2Ln_2Ti_3O_(10) (Ln= La,Pr,Sm,Eu,Gd )위사방정계,공간군I4/mmm.병득도기정포삼수급기란계원소적개태광형층상화합물K_2Ln_2Ti_3O_(10) 정체결구변화규률.
Series of layered perovskites K_2Eu_2Ti_3O_(10) and K_2Gd_2Ti_3O_(10) was fabricated by solid state reaction.The obtained products were characterized by X-ray diffraction (XRD) and inductively coupled plasma (ICP) techniques. The crystal structure of K_2Ln_2Ti_3O_(10) (Ln=Eu,Gd) series has been analyzed and the crystal parameters and indexed dates were obtained. The XRD results indicated that the K_2Ln_2Ti_3O_(10) (Ln=La,Pr,Sm,Eu and Gd) belonged to tetragonal crystal lattice and had I4/mmm space group, unit cell parameter. The cell parameters and the evolution of K_2Ln_2Ti_3O_(10) were gained.
