Structural, chemical and dielectric properties of ceramic injection moulded Ba(Zn1/3Ta2/3)O3 microwave dielectric ceramics

Shaojun Liu; Vincent A. Merrick; Nathan Newman

doi:10.1016/j.jeurceramsoc.2005.08.001

Structural, chemical and dielectric properties of ceramic injection moulded Ba(Zn_1/3Ta_2/3)O₃ microwave dielectric ceramics

Shaojun Liu, Vincent A. Merrick, Nathan Newman

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

8 Scopus citations

Abstract

We report the development of a ceramic injection moulding (CIM) process to produce complex-shaped structures using high-performance microwave ceramic materials. In particular, we describe the synthesis methods and the structural, chemical and dielectric properties of Ba(Zn_1/3Ta_2/3)O₃ (BZT) doped with Ni and Zr ceramics produced using ceramic injection moulding. Sintering the ceramic injection moulded Ba(Zn_1/3Ta_2/3)O₃ to a relative density of ∼94% was possible at a temperature of 1680 °C and a time of 48 h. The best samples to date exhibit a dielectric constant, ε_r, of ∼30, a Q value, of ∼31,250 (i.e. tan δ < 3.2 × 10^-5) at 2 GHz, and a temperature coefficient of resonance frequency, τ_f, of 0.1 ppm/°C.

Original language	English (US)
Pages (from-to)	3273-3278
Number of pages	6
Journal	Journal of the European Ceramic Society
Volume	26
Issue number	15
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2005.08.001
State	Published - 2006

Keywords

Ba(Zn, Ta)O
Dielectrics properties
Injection moulding
Resonators
Tantalates

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

Access to Document

10.1016/j.jeurceramsoc.2005.08.001

Cite this

@article{b4f64bef6c544218bedb46fc677465e7,

title = "Structural, chemical and dielectric properties of ceramic injection moulded Ba(Zn1/3Ta2/3)O3 microwave dielectric ceramics",

abstract = "We report the development of a ceramic injection moulding (CIM) process to produce complex-shaped structures using high-performance microwave ceramic materials. In particular, we describe the synthesis methods and the structural, chemical and dielectric properties of Ba(Zn1/3Ta2/3)O3 (BZT) doped with Ni and Zr ceramics produced using ceramic injection moulding. Sintering the ceramic injection moulded Ba(Zn1/3Ta2/3)O3 to a relative density of ∼94% was possible at a temperature of 1680 °C and a time of 48 h. The best samples to date exhibit a dielectric constant, εr, of ∼30, a Q value, of ∼31,250 (i.e. tan δ < 3.2 × 10-5) at 2 GHz, and a temperature coefficient of resonance frequency, τf, of 0.1 ppm/°C.",

keywords = "Ba(Zn, Ta)O, Dielectrics properties, Injection moulding, Resonators, Tantalates",

author = "Shaojun Liu and Merrick, {Vincent A.} and Nathan Newman",

note = "Funding Information: The Office of Naval Research under Contract N000140010550, N00014040461, the Office of Army Research under Contract W911NF0410376, the semiconductor research corporation (SRC) under research ID 2004-KJ-1201 and the ASU Wintech center supported this work. We would also like to thank David Cruickshank and Mike Hill of Trans-tech for interesting discussions on this mechanism responsible for changes of the temperature coefficient of resonant frequency.",

year = "2006",

doi = "10.1016/j.jeurceramsoc.2005.08.001",

language = "English (US)",

volume = "26",

pages = "3273--3278",

journal = "Journal of the European Ceramic Society",

issn = "0955-2219",

publisher = "Elsevier BV",

number = "15",

}

TY - JOUR

T1 - Structural, chemical and dielectric properties of ceramic injection moulded Ba(Zn1/3Ta2/3)O3 microwave dielectric ceramics

AU - Liu, Shaojun

AU - Merrick, Vincent A.

AU - Newman, Nathan

N1 - Funding Information: The Office of Naval Research under Contract N000140010550, N00014040461, the Office of Army Research under Contract W911NF0410376, the semiconductor research corporation (SRC) under research ID 2004-KJ-1201 and the ASU Wintech center supported this work. We would also like to thank David Cruickshank and Mike Hill of Trans-tech for interesting discussions on this mechanism responsible for changes of the temperature coefficient of resonant frequency.

PY - 2006

Y1 - 2006

N2 - We report the development of a ceramic injection moulding (CIM) process to produce complex-shaped structures using high-performance microwave ceramic materials. In particular, we describe the synthesis methods and the structural, chemical and dielectric properties of Ba(Zn1/3Ta2/3)O3 (BZT) doped with Ni and Zr ceramics produced using ceramic injection moulding. Sintering the ceramic injection moulded Ba(Zn1/3Ta2/3)O3 to a relative density of ∼94% was possible at a temperature of 1680 °C and a time of 48 h. The best samples to date exhibit a dielectric constant, εr, of ∼30, a Q value, of ∼31,250 (i.e. tan δ < 3.2 × 10-5) at 2 GHz, and a temperature coefficient of resonance frequency, τf, of 0.1 ppm/°C.

AB - We report the development of a ceramic injection moulding (CIM) process to produce complex-shaped structures using high-performance microwave ceramic materials. In particular, we describe the synthesis methods and the structural, chemical and dielectric properties of Ba(Zn1/3Ta2/3)O3 (BZT) doped with Ni and Zr ceramics produced using ceramic injection moulding. Sintering the ceramic injection moulded Ba(Zn1/3Ta2/3)O3 to a relative density of ∼94% was possible at a temperature of 1680 °C and a time of 48 h. The best samples to date exhibit a dielectric constant, εr, of ∼30, a Q value, of ∼31,250 (i.e. tan δ < 3.2 × 10-5) at 2 GHz, and a temperature coefficient of resonance frequency, τf, of 0.1 ppm/°C.

KW - Ba(Zn, Ta)O

KW - Dielectrics properties

KW - Injection moulding

KW - Resonators

KW - Tantalates

UR - http://www.scopus.com/inward/record.url?scp=33747041985&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33747041985&partnerID=8YFLogxK

U2 - 10.1016/j.jeurceramsoc.2005.08.001

DO - 10.1016/j.jeurceramsoc.2005.08.001

M3 - Article

AN - SCOPUS:33747041985

SN - 0955-2219

VL - 26

SP - 3273

EP - 3278

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 15

ER -