| 球磨时间对低温烧结BaO-TiO_2-Nb_2O_5微波陶瓷性能的影响 |
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| 引用本文： | 郭栋,凌志远,胡星.球磨时间对低温烧结BaO-TiO_2-Nb_2O_5微波陶瓷性能的影响[J].电子元件与材料,2008,27(4):59-61. |
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| 作者姓名： | 郭栋 凌志远 胡星 |
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| 作者单位： | 华南理工大学,材料学院电子材料系特种功能材料教育部重点实验室,广东,广州,510640 |
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| 摘 要： | 为实现Ba2Ti3Nb4O18(BaO-TiO2-Nb2O5)材料的低温烧结,添加质量分数为5%的ZnO-B2O3玻璃作助熔剂,研究了行星球磨时间对粉料粒径、陶瓷样品的烧结密度、显微结构和介电性能的影响。结果显示:行星球磨6h的粉料粒径适中(约90nm),用该粉料制备的样品可在900℃致密烧结(>95%理论密度),且介电性能优良(1MHz),εr约为36,tanδ小于4×10–4,电容温度系数为(–5～+5)×10–6/℃;微波介电性能如下:εr约为33,Q为2380(5.998GHz)。
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| 关 键 词： | 无机非金属材料 微波介质材料 低温烧结 球磨时间 玻璃料 |
| 文章编号： | 1001-2028(2008)04-0059-03 |
| 修稿时间： | 2008年1月14日 |
Effect of milling time on the properties for low-temperature sintering of BaO-TiO_2-Nb_2O_5 microwave ceramics |
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| GUO Dong,LING Zhi-yuan,HU Xing.Effect of milling time on the properties for low-temperature sintering of BaO-TiO_2-Nb_2O_5 microwave ceramics[J].Electronic Components & Materials,2008,27(4):59-61. |
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| Authors: | GUO Dong LING Zhi-yuan HU Xing |
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| Affiliation: | GUO Dong,LING Zhi-yuan,HU Xing ( Department of Electronic Materials Science , Engineering,Institute of Materials,South China University of Technology,Key Lab of Specially Functional Materials of Ministry of Education,Guangzhou 510640,China ) |
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| Abstract: | 5%(mass fraction) ZnO-B2O3 frit was added to lower the sintering temperature of Ba2Ti3Nb4O18(BaO-TiO2-Nb2O5) ceramics. Effects of milling time on the particle size,sintering density,microstructure and dielectric properties were studied. The particle size of starting materials milled for 6 h is moderate (around 90 nm) and ceramic bulks could be densely sintered at 900 ℃ with good high frequency dielectric properties (at 1 MHz): εr is about 36,tan δ less than 4×10–4,temperature coefficient of capacitance is (–5～+5)×10–6 /℃ ; the microwave dielectric properties are as follows: εr is about 33,Q is 2 380 (5.998 GHz). |
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| Keywords: | non-metallic inorganic material microwave dielectrics low-temperature sintering milling time frits |
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