The structure of vanadate glass-ceramics containing BaTiO3 measured with X-ray diffraction method

The structure of vanadate glass-ceramics doped with BaTiO3 was measured by XRD. Samples of the composition of x[BaO,TiO2]–(80 − x)V2O5–20Bi2O3 where x = 5, 10 and 15 in mol% were prepared by a conventional melt quenching technique. The melting was performed in alumina crucibles at the temperature of 1273 K–1373 K. The melts were poured on a preheated (573 K) brass plate and pressed by another plate. A subset of as-quenched samples was heat treated in air at the temperature of 633 K (close to the crystallization temperature) for 6 h and cooled with the furnace. The structure of powdered samples was measured before and after heat-treatment. The structure has been studied by the X-ray diffraction method with the use of a Philips X'Pert Pro MPD system with the CuKα radiation. Detailed information can be found in: http://dx.doi.org/10.1016/j.jnoncrysol.2014.01.008本研究采用X射线衍射（X-ray Diffraction, XRD）对掺钛酸钡（BaTiO3）的钒酸盐微晶玻璃的结构进行了表征。采用常规熔融淬火法制备了组分为x[BaO,TiO2]–(80−x)V2O5–20Bi2O3、x取值为5、10和15（摩尔百分比，mol%）的样品。熔融过程在氧化铝坩埚中于1273 K至1373 K的温度范围内进行，将熔融液浇铸于预热至573 K的黄铜板上，并用另一块平板压制成型。取部分淬冷态样品置于空气中，在接近结晶温度的633 K下保温6小时，随后随炉冷却。分别对热处理前后的粉末样品进行结构表征。采用配备CuKα辐射源的Philips X'Pert Pro MPD型X射线衍射系统完成结构分析。详细信息可参见：http://dx.doi.org/10.1016/j.jnoncrysol.2014.01.008