Phase evolution and dielectric properties of MgTi2O5 ceramic sintered with lithium borosilicate glass

Hyunho Shin; Hee Kyun Shin; Hyun Suk Jung; Seo Yong Cho; Kug Sun Hong

doi:10.1016/j.materresbull.2005.04.025

Phase evolution and dielectric properties of MgTi₂O₅ ceramic sintered with lithium borosilicate glass

Hyunho Shin, Hee Kyun Shin, Hyun Suk Jung, Seo Yong Cho, Kug Sun Hong

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

61 Scopus citations

Abstract

Phase evolution, densification, and dielectric properties of MgTi ₂O₅ dielectric ceramic, sintered with lithium borosilicate (LBS) glass, were studied. Reaction between LBS glass and MgTi ₂O₅ was significant in forming secondary phases such as TiO₂ and (Mg,Ti)₂(BO₃)O. The glass addition was not necessarily deleterious to the dielectric properties due to the formation of TiO₂: permittivity increased and temperature coefficient of resonance frequency could be tuned to zero with the addition of LBS glass, although the inevitable glass-induced decrease of quality factor was not retarded by the formation of TiO₂. The sintered specimen with 10 wt% LBS fired at 950°C for 2 h showed permittivity of 19.3, quality factor of 6800 GHz, and τ_f of -16 ppm/°C.

Original language	English
Pages (from-to)	2021-2028
Number of pages	8
Journal	Materials Research Bulletin
Volume	40
Issue number	11
DOIs	https://doi.org/10.1016/j.materresbull.2005.04.025
State	Published - 3 Nov 2005
Externally published	Yes

Keywords

A. Ceramics
A. Glasses
D. Dielectric properties

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10.1016/j.materresbull.2005.04.025

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title = "Phase evolution and dielectric properties of MgTi2O5 ceramic sintered with lithium borosilicate glass",

abstract = "Phase evolution, densification, and dielectric properties of MgTi 2O5 dielectric ceramic, sintered with lithium borosilicate (LBS) glass, were studied. Reaction between LBS glass and MgTi 2O5 was significant in forming secondary phases such as TiO2 and (Mg,Ti)2(BO3)O. The glass addition was not necessarily deleterious to the dielectric properties due to the formation of TiO2: permittivity increased and temperature coefficient of resonance frequency could be tuned to zero with the addition of LBS glass, although the inevitable glass-induced decrease of quality factor was not retarded by the formation of TiO2. The sintered specimen with 10 wt\% LBS fired at 950°C for 2 h showed permittivity of 19.3, quality factor of 6800 GHz, and τf of -16 ppm/°C.",

keywords = "A. Ceramics, A. Glasses, D. Dielectric properties",

author = "Hyunho Shin and Shin, \{Hee Kyun\} and Jung, \{Hyun Suk\} and Cho, \{Seo Yong\} and Hong, \{Kug Sun\}",

year = "2005",

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doi = "10.1016/j.materresbull.2005.04.025",

language = "English",

volume = "40",

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journal = "Materials Research Bulletin",

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TY - JOUR

T1 - Phase evolution and dielectric properties of MgTi2O5 ceramic sintered with lithium borosilicate glass

AU - Shin, Hyunho

AU - Shin, Hee Kyun

AU - Jung, Hyun Suk

AU - Cho, Seo Yong

AU - Hong, Kug Sun

PY - 2005/11/3

Y1 - 2005/11/3

N2 - Phase evolution, densification, and dielectric properties of MgTi 2O5 dielectric ceramic, sintered with lithium borosilicate (LBS) glass, were studied. Reaction between LBS glass and MgTi 2O5 was significant in forming secondary phases such as TiO2 and (Mg,Ti)2(BO3)O. The glass addition was not necessarily deleterious to the dielectric properties due to the formation of TiO2: permittivity increased and temperature coefficient of resonance frequency could be tuned to zero with the addition of LBS glass, although the inevitable glass-induced decrease of quality factor was not retarded by the formation of TiO2. The sintered specimen with 10 wt% LBS fired at 950°C for 2 h showed permittivity of 19.3, quality factor of 6800 GHz, and τf of -16 ppm/°C.

AB - Phase evolution, densification, and dielectric properties of MgTi 2O5 dielectric ceramic, sintered with lithium borosilicate (LBS) glass, were studied. Reaction between LBS glass and MgTi 2O5 was significant in forming secondary phases such as TiO2 and (Mg,Ti)2(BO3)O. The glass addition was not necessarily deleterious to the dielectric properties due to the formation of TiO2: permittivity increased and temperature coefficient of resonance frequency could be tuned to zero with the addition of LBS glass, although the inevitable glass-induced decrease of quality factor was not retarded by the formation of TiO2. The sintered specimen with 10 wt% LBS fired at 950°C for 2 h showed permittivity of 19.3, quality factor of 6800 GHz, and τf of -16 ppm/°C.

KW - A. Ceramics

KW - A. Glasses

KW - D. Dielectric properties

UR - https://www.scopus.com/pages/publications/26444523950

U2 - 10.1016/j.materresbull.2005.04.025

DO - 10.1016/j.materresbull.2005.04.025

M3 - Article

AN - SCOPUS:26444523950

SN - 0025-5408

VL - 40

SP - 2021

EP - 2028

JO - Materials Research Bulletin

JF - Materials Research Bulletin

IS - 11

ER -

Phase evolution and dielectric properties of MgTi₂O₅ ceramic sintered with lithium borosilicate glass

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Keywords

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