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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >PbO-B2O3-SiO2 glass powders with spherical shape prepared by spray pyrolysis
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PbO-B2O3-SiO2 glass powders with spherical shape prepared by spray pyrolysis

机译：喷雾热解法制备球形PbO-B2O3-SiO2玻璃粉

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摘要

PbO-B2O3-SiO2 glass powders were directly prepared using spray pyrolysis. The powders were spherical and fine-sized. One glass particle was obtained from one droplet by melting the precursors inside a hot wall tubular reactor. The characteristics of these powders were compared with those of the commercial product, which was prepared using the conventional melting process. The spherical powders, which were prepared using spray pyrolysis at 1000 degrees C, had broad peaks at around 28 degrees in the XRD spectrum. The glass phase was formed during the spray pyrolysis process even within a short residence time of the powders inside the hot wall tubular reactor. The mean size of the prepared glass powders was 1 mu m. The dielectric layers formed from the spherical, fine-sized glass powders had a high transparency at firing temperatures above 520 degrees C. The maximum transparency of the dielectric layer formed from the glass powders obtained from spray pyrolysis was 95.3% at the firing temperature of 560 degrees C. The dielectric layer formed from the spherical, fine-sized glass powders had a smooth surface and no void inside the dielectric layer. (c) 2006 Elsevier B.V. All rights reserved.
机译：使用喷雾热解法直接制备了PbO-B2O3-SiO2玻璃粉末。粉末是球形的并且是细粒度的。通过在热壁管式反应器内熔融前体从一个液滴中获得一个玻璃颗粒。将这些粉末的特性与使用常规熔融工艺制备的商业产品的特性进行了比较。在1000℃下使用喷雾热解制备的球形粉末在XRD谱中在约28℃具有宽峰。甚至在粉末在热壁管式反应器内的短停留时间内，在喷雾热解过程中也形成玻璃相。制备的玻璃粉的平均尺寸为1μm。由球形细粒玻璃粉形成的介电层在520摄氏度以上的焙烧温度下具有较高的透明度。在560摄氏度的焙烧温度下，由喷雾热解获得的玻璃粉末形成的介电层的最大透明度为95.3％由球形的细小玻璃粉形成的介电层表面光滑，介电层内部没有空隙。 （c）2006 Elsevier B.V.保留所有权利。

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