Hostname: page-component-cd9895bd7-gvvz8 Total loading time: 0 Render date: 2024-12-29T12:41:40.908Z Has data issue: false hasContentIssue false
  • English
  • Français

A new low-loss microwave dielectric ceramic for low temperature cofired ceramic applications

Published online by Cambridge University Press:  31 January 2011

Huanfu Zhou ,
Xiuli Chen ,
Liang Fang ,
Dongjin Chu  and
Hong Wang
Dongjin Chu
Affiliation:
State Key Laboratory Breeding Base of Nonferrous Metals and Specific Materials Processing, Guilin University of Technology, Guilin 541004, People's Republic of China; and Key Laboratory of Nonferrous Materials and New Processing Technology, Ministry of Education, Guilin University of Technology, Guilin 541004, China
Hong Wang
Affiliation:
Electronic Materials Research Laboratory, Key Laboratory of the Ministry of the Education, Xi'an Jiaotong University, Xi'an 710049, China
Get access

Abstract

A new low sintering temperature microwave dielectric ceramic, Li2ZnTi3O8, was investigated. X-ray diffraction data show that Li2ZnTi3O8 has a cubic structure [P4332(212)] with lattice parameters a = 8.37506 Å, V = 587.44 Å3, and Z = 4 when the sintering temperature is 1050 °C. The Li2ZnTi3O8 ceramic exhibits good microwave dielectric properties with εr about 26.2, Q×f value about 62,000 GHz, and τf about −15 ppm/°C. The addition of BaCu(B2O5) can effectively lower the sintering temperature from 1050 to 900 °C without degrading the microwave dielectric properties. Compatibility with Ag electrode indicates this material can be applied to low temperature cofired ceramic devices.

Keywords

Electronic materialDielectric propertiesMicrostructure
Type
Materials Communications
Information
Journal of Materials Research , Volume 25 , Issue 7 , July 2010 , pp. 1235 - 1238
Copyright
Copyright © Materials Research Society 2010

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1.Lim, J.B., Cho, K.H., Nahm, S., Paik, J.H., Kim, J.H.Effect of BaCu(B2O5) on the sintering temperature and microwave dielectric properties of BaO–Ln2O3–TiO2 (Ln = Sm, Nd) ceramics. Mater. Res. Bull. 41, 1868 (2006)CrossRefGoogle Scholar
2.Zhou, H.F., Wang, H., Ding, X.Y., Yao, X.Microwave dielectric properties of 3Li2O–Nb2O5–3TiO2 ceramics with Li2O–V2O5 additions. J. Mater. Sci.- Mater. Electron. 20, 39 (2009)CrossRefGoogle Scholar
3.Udovic, M., Valant, M., Suvorov, D.Phase formation and dielectric characterization of the Bi2O3–TeO2 system prepared in an oxygen atmosphere. J. Am. Ceram. Soc. 87, 591 (2004)CrossRefGoogle Scholar
4.Subodh, G., Sebastian, M.T.Glass-free Zn2Te3O8 microwave ceramic for LTCC applications. J. Am. Ceram. Soc. 90, 2266 (2007)CrossRefGoogle Scholar
5.Valant, M., Suvorov, D.Processing and dielectric properties of sillenite compounds Bi12MO20 (M = Si, Ge, Ti, Pb, Mn, B1/2P1/2). J. Am. Ceram. Soc. 84, 2900 (2001)CrossRefGoogle Scholar
6.Wang, X.L., Wang, H., Yao, X.Structures, phase transformations, and dielectric properties of pyrochlores containing bismuth. J. Am. Ceram. Soc. 80, 2745 (1997)CrossRefGoogle Scholar
7.Zhou, D., Wang, H., Yao, X., Pang, L.X.Microwave dielectric properties of low temperature firing Bi2Mo2O9 ceramic. J. Am. Ceram. Soc. 91, 3419 (2008)CrossRefGoogle Scholar
8.Choi, G.K., Kim, J.R., Yoon, S.H., Hong, K.S.Microwave dielectric properties of scheelite (A = Ca, Sr, Ba) and wolframite (A = Mg, Zn, Mn) AMoO4 compounds. J. Eur. Ceram. Soc. 27, 3063 (2007)Google Scholar
9.Blasse, G.The structure of some new mixed metal oxides containing lithium. J. Inorg. Nucl. Chem. 25, 743 (1963)CrossRefGoogle Scholar
10.Hernandez, V.S., Torres Martinez, L.M., Mather, G.C., West, A.R.Stoichiometry, structures and polymorphism of spinel-like phases, Li1.33xZn2–2xTi1+0.67xO4. J. Mater. Chem. 6, 1533 (1996)CrossRefGoogle Scholar
11.Blasse, G.Crystal chemistry and some magnetic properties of mixed metal oxides with spinel structure. Philips Res. Rep. 3, 96 (1964)Google Scholar
12.Kim, M.H., Lim, J.B., Kim, J.C., Nahm, S.Synthesis of BaCu(B2O5) ceramics and their effect on the sintering temperature and microwave dielectric properties of Ba(Zn1/3Nb2/3)O3 ceramics. J. Am. Ceram. Soc. 89, 3124 (2006)CrossRefGoogle Scholar
13.Lim, J.B., Jeong, Y.H., Nguyen, N.H., Nahm, S., Paik, J.H., Kim, J.H., Lee, H.J.Low temperature sintering of the Ba2Ti9O20 ceramics using B2O3/CuO and BaCu(B2O5) additives. J. Eur. Ceram. Soc. 27, 2875 (2007)CrossRefGoogle Scholar
14.Zhou, H., Wang, H., Chen, Y., Li, K., Yao, X.Low temperature sintering and microwave dielectric properties of Ba3Ti5Nb6O28 ceramics with BaCu(B2O5) additions. Mater. Chem. Phys. 113, 1 (2009)CrossRefGoogle Scholar
15.Kim, M.H., Lim, J.B., Kim, J.C., Nahm, S.Synthesis of BaCu(B2O5) ceramics and their effect on the sintering temperature and microwave dielectric properties of Ba(Zn1/3Nb2/3)O3 ceramics. J. Am. Ceram. Soc. 89, 3124 (2006)CrossRefGoogle Scholar