Structures of K_(0.05)Na_(0.95)NbO_3(50-300 K) andK_(0.30)Na_(0.70)NbO_3(100-200 K)

N. Zhang; A. M. Glazer; aD.Baker; P. A. Thomas

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Structures of K_(0.05)Na_(0.95)NbO_3(50-300 K) andK_(0.30)Na_(0.70)NbO_3(100-200 K)

机译：K_（0.05）Na_（0.95）NbO_3（50-300 K）和K_（0.30）Na_（0.70）NbO_3（100-200 K）的结构

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Rietveld refinement using neutron powder diffraction data isreported for the potential lead-free piezoelectric materialK_xNa_(1-x)NbO_3(x =0.05,0.3) at low temperatures. Thestructures were determined to be of rhombohedral symmetry,space group R3c, with the tilt system a– a–a– for bothcompositions. It was found that some of the structuralparameters differ significantly in the two structures, andparticularly the NbO_6 octahedral strains as a function oftemperature. The 300 K profile for K_(0.05)Na_(0.95)NbO_3shows thecoexistence of rhombohedral and monoclinic phases, whichindicates that the phase boundary is close to room tempera-ture; the phase boundary for K_(0.30)Na_(0.70)NbO_3is found to be atapproximately 180 K.

机译：报告了在低温下使用中子粉末衍射数据进行的Rietveld精修技术，用于潜在的无铅压电材料K_xNa_（1-x）NbO_3（x = 0.05,0.3）。结构被确定为菱面体对称，R3c空间群，两种成分的倾斜系统为a–a–a–。发现两个结构中的一些结构参数明显不同，尤其是NbO_6八面体应变随温度的变化。 K_（0.05）Na_（0.95）NbO_3的300 K曲线显示菱形和单斜晶相共存，这表明相边界接近室温。发现K_（0.30）Na_（0.70）NbO_3的相界约为180 K.

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《Acta Crystallographica, Section B. Structural Science》 |2009年第3期|共9页
作者
N. Zhang; A. M. Glazer; aD.Baker; P. A. Thomas;
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Structures; K_(0.05)Na_(0.95)NbO_3(50-300 K); K_(0.30)Na_(0.70)NbO_3;

机译：结构;K_（0.05）Na_（0.95）NbO_3（50-300 K）;K_（0.30）Na_（0.70）NbO_3;

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1. Structures of K_(0.05)Na_(0.95)NbO_3(50-300 K) andK_(0.30)Na_(0.70)NbO_3(100-200 K) [J] . N. Zhang, A. M. Glazer, aD.Baker, Acta Crystallographica, Section B. Structural Science . 2009,第3期

机译：K_（0.05）Na_（0.95）NbO_3（50-300 K）和K_（0.30）Na_（0.70）NbO_3（100-200 K）的结构
2. Studies of the Heat Capacity and Thermal Expansion of the Na_(0.95)K_(0.05)NbO_3 Solid Solution [J] . M. V. Gorev, V. S. Bondarev, S. I. Raevskaya, Physics of the solid state . 2014,第2期

机译：Na_（0.95）K_（0.05）NbO_3固溶体的热容和热膨胀研究
3. ИССЛЕДОВАНИЯ ТЕПЛОЕМКОСТИ И ТЕПЛОВОГО РАСШИРЕНИЯ ТВЕРДОГО РАСТВОРА NA_(0.95)K_(0.05)NBO_3 [J] . М.В. Горев, B.C. Бондарев, С.И. Раевская, Физика твердого тела: ФТТ . 2014,第2期

机译：固溶体的热容量和热膨胀的研究NA_（0.95）K_（0.05）NBO_3
4. Effect of Sintering Condition on the Microstructure and Electrical Properties of Lead-Free (Na_(0.5)K_(0.5))NbO_3 - Bi_(0.5)(Na_(0.95)K_(0.05)_(0.5)TiO_3 Ceramics [C] . Chun Huy Wang International Conference on Machining, Materials and Mechanical Technologies . 2015

机译：烧结条件对无铅的微观结构和电性能的影响（Na_（0.5）K_（0.5））NbO_3 - Bi_（0.5）（Na_（0.95）K_（0.05）_（0.5）TiO_3陶瓷
5. Crystal structure of (Na0.70)(Na0.70Mn0.30)(Fe3+Fe2+)2Fe2+(VO4)3 a sodium- iron- and manganese-based vanadate with the alluaudite-type structure [O] . Elhassan Benhsina, Abderrazzak Assani, Mohamed Saadi, 2016

机译：（Na0.70）（Na0.70Mn0.30）（Fe3 +Fe2 +）2Fe2 +（VO4）3的晶体结构钠铁和锰基钒酸盐具有别铝石型结构
6. Structures of K(0.05)Na(0.95)NbO3 (50-300 K) and K(0.30)Na(0.70)NbO3 (100-200 K). [O] . Zhang, N, Glazer, AM, Baker, D, 2009

机译：K（0.05）Na（0.95）NbO3（50-300 K）和K（0.30）Na（0.70）NbO3（100-200 K）的结构。

Structures of K_(0.05)Na_(0.95)NbO_3(50-300 K) andK_(0.30)Na_(0.70)NbO_3(100-200 K)

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