Processing of Bi1.5ZnNb1.5O7 ceramics for LTCC applications: Comparison of synthesis and sintering methods

被引：11

作者：

da Silva, S. A. ^{[2
]}

Zanetti, S. M. ^{[1
]}

机构：

[1] Inst Nacl Pesquisas Espaciais, Lab Associado Sensores & Mat, BR-12227010 Sao Jose Dos Campos, Brazil

[2] Inst Tecnol Aeronaut, Dept Quim, BR-12228900 Sao Jose Dos Campos, Brazil

来源：

CERAMICS INTERNATIONAL | 2009年 / 35卷 / 07期

基金：

巴西圣保罗研究基金会;

关键词：

Powders: chemical preparation; Dielectric properties; Niobates; DIELECTRIC-PROPERTIES; PRECURSOR SOLUTION; PYROCHLORE; POWDERS; BI1.5ZN0.92NB1.5O6.92; SUBSTITUTION; PHASE; UREA;

D O I：

10.1016/j.ceramint.2009.03.022

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Bismuth zinc niobate posses a cubic pyrochlore structure and normally is obtained by the conventional solid-state reaction. The great disadvantage of this method is the lack of chemical homogeneity, requiring high synthesis and sintering temperatures (higher than 1000 degrees C), which is an impeditive for BZN application in LTCC with silver as the internal electrode. The aim of this paper is to compare, from synthesis to sintering, BZN ceramics, derived either from chemically or conventionally synthesized powders, sintered either in both conventional oven for 2 h or microwave oven for 15 min. The results showed that chemically synthesized BZN ceramics sintered in microwave oven at 900 degrees C for 15 min presented a relative density of 97%, while those obtained by conventional method required 1000 degrees C to reach the same density. Despite the short period for thermal treatment in microwave oven, the electrical properties of BZN ceramics are compatible with those sintered in conventional oven for 2 h. (C) 2009 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：2755 / 2759

页数：5

共 25 条

[1] ZnTiO3 ceramic sintered at low temperature with glass phase addition for LTCC applications [J].

Chaouchi, A. ;

d'Astorg, S. ;

Marinel, S. ;

Aliouat, M. .

MATERIALS CHEMISTRY AND PHYSICS, 2007, 103 (01) :106-111

[2] Synthesis of shape-controlled titania particles from a precursor solution containing urea [J].

Cheng, P ;

Qiu, JX ;

Gu, MY ;

Jin, YP ;

Shangguan, W .

MATERIALS LETTERS, 2004, 58 (29) :3751-3755

[3] Bismuth zinc niobate pyrochlore Bi1.5ZnNb1.5O7 from a polymeric urea-containing precursor [J].

da Silva, SA ;

Zanetti, SM .

MATERIALS CHEMISTRY AND PHYSICS, 2005, 93 (2-3) :521-525

[4] Effects of Sr substitution on dielectric characteristics in Bi1.5ZnNb1.5O7 ceramics [J].

Du, HL ;

Yao, X .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2003, 99 (1-3) :437-440

[5] Fabrication of PZT materials from nanostructured powders [J].

Gajbhiye, NS ;

Venkataramani, S ;

Venkataramani, PS .

PROGRESS IN CRYSTAL GROWTH AND CHARACTERIZATION OF MATERIALS, 2002, 44 (03) :127-131

[6] Selective laser sintering of PZT ceramic powders [J].

Gureev, DM ;

Ruzhechko, RV ;

Shishkovsky, IV .

TECHNICAL PHYSICS LETTERS, 2000, 26 (03) :262-264

[7]

HAIJUN Z, 2004, MAT RES B, V39, P839

[8] Highly enhanced sinterability of commercial PZT powders by high-energy ball milling [J].

Kong, LB ;

Ma, J ;

Zhu, W ;

Tan, OK .

MATERIALS LETTERS, 2000, 46 (05) :274-280

[9] Local structure of displacively disordered pyrochlore dielectrics [J].

Krayzman, Victor ;

Levin, Igor ;

Woicik, Joseph C. .

CHEMISTRY OF MATERIALS, 2007, 19 (04) :932-936

[10] Structural study of an unusual cubic pyrochlore Bi1.5Zn0.92Nb1.5O6.92 [J].

Levin, I ;

Amos, TG ;

Nino, JC ;

Vanderah, TA ;

Randall, CA ;

Lanagan, MT .

JOURNAL OF SOLID STATE CHEMISTRY, 2002, 168 (01) :69-75

← 1 2 3 →