Investigating on sintering mechanism and adjustable dielectric properties of BLMT glass/Li2Zn3Ti4O12 composites for LTCC applications

doi:10.1016/j.jallcom.2018.01.111

	Investigating on sintering mechanism and adjustable dielectric properties of BLMT glass/Li2Zn3Ti4O12 composites for LTCC applications
	Ren, Haishen 1,2; Jiang, Shaohu 1; Dang, Mingzhao 1,2; Xie, Tianyi 1; Tang, Hua 3; Peng, Haiyi 1,2; Lin, Huixing 1; Luo, Lan 1
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2018-04-05
卷号	740 页码:1188-1196
关键词	B2O3-La2O3-MgO-TiO2 glass Li2Zn3Ti4O12 ceramic LTCC Dielectric properties Sintering mechanism
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2018.01.111
英文摘要	A series of novel low temperature co-fired ceramics were fabricated in x BLMT-(100-x) Li2Zn3Ti4O12 (2.5 <= x <= 80 wt%) composites sintered at 900 degrees C. The sintering mechanism, phase composition, microstructure and dielectric properties of the composites were investigated. The results showed that the sintering mechanism of composites with <20 wt% BLMT glass could be attributed to non-reactive liquid-phase sintering and LaBO3 phase was crystallized from glass beside Li2Zn3Ti4O12 phase, while composites with >= 20 wt% glass were controlled by the coexistence of viscous sintering and reactive liquid-phase sintering, BLMT glass crystallized forming LaBO3, MgLaB5O10 and a small amount of rutile phase, nevertheless, more rutile phase was formed by reacting between glass and ceramic. As BLMT glass was increased, LaBO3, MgLaB5O10 and rutile phase gradually dominated the material and Li2Zn3Ti4O12 phase decreased. Meanwhile, the dielectric constant (epsilon(r)) and quality factor (Q x f) demonstrated gradually decrease, whereas the temperature coefficient of resonant frequency (tau(f)) presented a trend of fall first then rise. Typically, the composite with 60 wt% glass displayed excellent dielectric properties with epsilon(r) = 14, Q x f = 23,000 GHz, and tau(f) = -3.56 ppm/degrees C. The corresponding fitting equations of epsilon(r), Q x f and tau(f) on the BLMT glass content were obtained by the Origin software, which indicated that the dielectric properties of BLMT/Li2Zn3Ti4O12 composites could be precisely adjusted by adding the suitable content of glass. Therefore, the sintering process, phase composition and dielectric properties of BLMT/Li2Zn3Ti4O12 composites can be controlled by varying the content of Li2Zn3Ti4O12 ceramic and B2O3-La2O3-MgO-TiO2 glass. (C) 2018 Elsevier B.V. All rights reserved.
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000425494200140
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/6250]
专题	中国科学院重庆绿色智能技术研究院
通讯作者	Ren, Haishen
作者单位	1.Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Inorgan Funct Mat & Device, Shanghai 200050, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400050, Peoples R China
推荐引用方式 GB/T 7714	Ren, Haishen,Jiang, Shaohu,Dang, Mingzhao,et al. Investigating on sintering mechanism and adjustable dielectric properties of BLMT glass/Li2Zn3Ti4O12 composites for LTCC applications[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2018,740:1188-1196.
APA	Ren, Haishen.,Jiang, Shaohu.,Dang, Mingzhao.,Xie, Tianyi.,Tang, Hua.,...&Luo, Lan.(2018).Investigating on sintering mechanism and adjustable dielectric properties of BLMT glass/Li2Zn3Ti4O12 composites for LTCC applications.JOURNAL OF ALLOYS AND COMPOUNDS,740,1188-1196.
MLA	Ren, Haishen,et al."Investigating on sintering mechanism and adjustable dielectric properties of BLMT glass/Li2Zn3Ti4O12 composites for LTCC applications".JOURNAL OF ALLOYS AND COMPOUNDS 740(2018):1188-1196.