采用化学法结合传统的氧化物固相烧结法合成钛酸锌(ZnTiO3)粉体,掺杂V2O5作为烧结助剂降低陶瓷的烧结温度,研究了原料活性对钛酸锌陶瓷低温烧结的影响,以及V2O5对钛酸锌陶瓷低温烧结行为和微结构的影响.结果表明:钛酸锌陶瓷低温烧结对所选取的原料极为敏感,TiO2对陶瓷烧结影响很大;V2O5有效的将钛酸锌陶瓷的烧结温度从1100℃降到875℃,900℃烧结样品的相对密度达96.1%;同时,V2O5的加入降低了六方相ZnTiO3的分解温度,并导致晶粒异常长大;异相的产生严重影响了陶瓷的介电性能,在微波频段下,900℃烧结掺杂0.75%V2O5(质量分数,下同)钛酸锌陶瓷的Q×f=8873GHz,εr=21.3.
参考文献
[1] | Kim HT.;Kim Y.;Byun JD. .Microstructure and microwave dielectric properties of modified zinc titanates (I)[J].Materials Research Bulletin: An International Journal Reporting Research on Crystal Growth and Materials Preparation and Characterization,1998(6):963-973. |
[2] | Kim HT.;Kim Y.;Byun JD. .Microstructure and microwave dielectric properties of modified zinc titanates (II)[J].Materials Research Bulletin: An International Journal Reporting Research on Crystal Growth and Materials Preparation and Characterization,1998(6):975-986. |
[3] | Golovchansk A;Kim H T;Kim Y H .[J].Journal of the Korean Physical Society,1998,32(02):1167. |
[4] | Kim H T;Hwang J C;Nam J H et al.[J].Journal of Materials Research,2003,18(05):1067. |
[5] | Kim H T;Lanagan M T .[J].Journal of the American Ceramic Society,2003,86(11):1874. |
[6] | Cheng-Liang H;Kuo-Hau CH .[J].Materials Research Bulletin,2004,39:629. |
[7] | Kim WS.;Kim ES.;Yoon KH.;Kim TH. .Microwave dielectric properties and far infrared reflectivity spectra of the (Zr0.8Sn0.2)TiO4 ceramics with additives[J].Japanese journal of applied physics,1998(9B):5367-5371. |
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