Ultralow-loss (1-x)CaWO4-xNa2WO4 (x = 0.1, 0.2) microwave dielectric ceramic for LTCC applications There are no conflicts to declare

Tao,Sun1,2; Bin,Xiao1,2; Fei,Jin1,2; Xinwei,Xu1,2; Feng,Wang1,2; Naichao,Chen1,2; Xianqiang,Chen1,2; Hong,Wang1,2

2021-02

10.1016/j.jmat.2021.02.006

Journal of Materiomics   影响因子和分区

2352-8478

In this work, the (1-x)CaWO4-xNa(2)WO(4) (x = 0.1, 0.2, denoted as 0.9CW-0.1NW and 0.8CW-0.2NW, respectively) ultralow-loss microwave dielectric ceramics were prepared via solid-state reaction method. Using low melting-point Na2WO4 as sintering aid to prepare CaWO4-Na2WO4 composite ceramics, the sintering temperature of CaWO4 was successfully reduced while maintaining excellent microwave performance. The optimal microwave dielectric properties have been achieved at 900 degrees C for 0.9CW-0.1NW ceramic: epsilon(r) = 9.0, Q x f = 105660 GHz, tan delta = 1.1 x 10(-4) and tau(f) = -35.4 ppm/degrees C at a frequency of 12.0 GHz. For the 0.8CW-0.2NW ceramic, the optimal microwave dielectric properties have been obtained at 740 degrees C, with epsilon(r) = 8.5, Q x f = 97014 GHz, tan delta = 1.2 x 10(-4) and tau(f)= -37.4 ppm/degrees C at a frequency of 11.8 GHz. In summary, both composite ceramics exhibit low sintering temperatures, excellent dielectric properties and chemical compatibility with the Ag electrode. The findings of this study provide an effective approach to prepare novel composite ceramics as promising candidates for LTCC applications. (C) 2021 The Chinese Ceramic Society. Production and hosting by Elsevier B.V.

Ultralow-loss LTCC Raman spectra Microwave dielectric ceramics

SCI

英语

第一 ; 通讯

Key Area Research Plan of Guangdong[2020B010176001] ; Shenzhen Science and Technology Program["KQTD20180411143514543","JCYJ20180504 165831308"] ; Shenzhen DRC project[[2018] 1433]

Chemistry ; Materials Science ; Physics

Chemistry, Physical ; Materials Science, Multidisciplinary ; Physics, Applied

WOS:000676440600002

Elsevier BV

人工提交

1.Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
2.Shenzhen Engineering Research Center for Novel Electronic Information Materials and Devices, Southern University of Science and Technology, Shenzhen 518055, China

Tao,Sun,Bin,Xiao,Fei,Jin,et al. Ultralow-loss (1-x)CaWO4-xNa2WO4 (x = 0.1, 0.2) microwave dielectric ceramic for LTCC applications There are no conflicts to declare[J]. Journal of Materiomics,2021,7(5).

Tao,Sun.,Bin,Xiao.,Fei,Jin.,Xinwei,Xu.,Feng,Wang.,...&Hong,Wang.(2021).Ultralow-loss (1-x)CaWO4-xNa2WO4 (x = 0.1, 0.2) microwave dielectric ceramic for LTCC applications There are no conflicts to declare.Journal of Materiomics,7(5).

Tao,Sun,et al."Ultralow-loss (1-x)CaWO4-xNa2WO4 (x = 0.1, 0.2) microwave dielectric ceramic for LTCC applications There are no conflicts to declare".Journal of Materiomics 7.5(2021).