Synthesis and dielectric properties of Li 1-x+yTa 1-x-3yTi x+4yO 3 M-phase solid solutions

Albina Y. Borisevich; Peter K. Davies

doi:10.1111/j.1151-2916.2002.tb00485.x

Synthesis and dielectric properties of Li _1-x+yTa _1-x-3yTi _x+4yO ₃ M-phase solid solutions

Albina Y. Borisevich
, Peter K. Davies

Research output: Contribution to journal › Article › peer-review

33 Scopus citations

Abstract

The synthesis, structure, and dielectric properties of the so-called M-phase solid solutions in the Li ₂O-Ta ₂O ₅-TiO ₂ system were investigated. Although the range of stability of the tantalate phases is more limited compared with their niobate counterparts, they have identical structures based on intergrowths of LiTaO ₃-type blocks separated by corundum type layers. The dielectric constants of the tantalate M-phases range from 68 to 52 and they all exhibit a negative temperature coefficient of capacitance. The temperature coefficient of the resonant frequency measured in the microwave region can be tuned to zero, and the system shows quite good quality factors with the highest value reaching a Q × f = 10500 at 6.7 GHz.

Original language	English
Pages (from-to)	2487-2491
Number of pages	5
Journal	Journal of the American Ceramic Society
Volume	85
Issue number	10
DOIs	https://doi.org/10.1111/j.1151-2916.2002.tb00485.x
State	Published - Oct 2002
Externally published	Yes

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title = "Synthesis and dielectric properties of Li 1-x+yTa 1-x-3yTi x+4yO 3 M-phase solid solutions",

abstract = "The synthesis, structure, and dielectric properties of the so-called M-phase solid solutions in the Li 2O-Ta 2O 5-TiO 2 system were investigated. Although the range of stability of the tantalate phases is more limited compared with their niobate counterparts, they have identical structures based on intergrowths of LiTaO 3-type blocks separated by corundum type layers. The dielectric constants of the tantalate M-phases range from 68 to 52 and they all exhibit a negative temperature coefficient of capacitance. The temperature coefficient of the resonant frequency measured in the microwave region can be tuned to zero, and the system shows quite good quality factors with the highest value reaching a Q × f = 10500 at 6.7 GHz.",

author = "Borisevich, \{Albina Y.\} and Davies, \{Peter K.\}",

year = "2002",

month = oct,

doi = "10.1111/j.1151-2916.2002.tb00485.x",

language = "English",

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pages = "2487--2491",

journal = "Journal of the American Ceramic Society",

issn = "0002-7820",

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T1 - Synthesis and dielectric properties of Li 1-x+yTa 1-x-3yTi x+4yO 3 M-phase solid solutions

AU - Borisevich, Albina Y.

AU - Davies, Peter K.

PY - 2002/10

Y1 - 2002/10

N2 - The synthesis, structure, and dielectric properties of the so-called M-phase solid solutions in the Li 2O-Ta 2O 5-TiO 2 system were investigated. Although the range of stability of the tantalate phases is more limited compared with their niobate counterparts, they have identical structures based on intergrowths of LiTaO 3-type blocks separated by corundum type layers. The dielectric constants of the tantalate M-phases range from 68 to 52 and they all exhibit a negative temperature coefficient of capacitance. The temperature coefficient of the resonant frequency measured in the microwave region can be tuned to zero, and the system shows quite good quality factors with the highest value reaching a Q × f = 10500 at 6.7 GHz.

AB - The synthesis, structure, and dielectric properties of the so-called M-phase solid solutions in the Li 2O-Ta 2O 5-TiO 2 system were investigated. Although the range of stability of the tantalate phases is more limited compared with their niobate counterparts, they have identical structures based on intergrowths of LiTaO 3-type blocks separated by corundum type layers. The dielectric constants of the tantalate M-phases range from 68 to 52 and they all exhibit a negative temperature coefficient of capacitance. The temperature coefficient of the resonant frequency measured in the microwave region can be tuned to zero, and the system shows quite good quality factors with the highest value reaching a Q × f = 10500 at 6.7 GHz.

UR - https://www.scopus.com/pages/publications/0036805795

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DO - 10.1111/j.1151-2916.2002.tb00485.x

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SN - 0002-7820

VL - 85

SP - 2487

EP - 2491

JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

IS - 10

ER -

Synthesis and dielectric properties of Li _1-x+yTa _1-x-3yTi _x+4yO ₃ M-phase solid solutions

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