EFFECT OF BAWO4 ON THE MICROWAVE DIELECTRIC-PROPERTIES OF BA(MG1/3TA2/3)O3 CERAMICS

被引：73
作者：
YOON, KH
KIM, DP
KIM, ES
机构：
[1] Department of Ceramic Engineering, Yonsei University, Seoul
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1994年 / 77卷 / 04期
关键词：
D O I：
10.1111/j.1151-2916.1994.tb07269.x
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：
Physical and microwave dielectric properties of complex perovskite Ba(Mg1/3Ta2/3)O2 ceramics have been investigated as a function of the amount of BaWO4 in the temperature range from 20-degrees to 80-degrees-C at 10.5 GHz. Up to 0.05 mol BaWO4 addition, the lattice constant ratio (c/a), ordering parameter, apparent density, and unloaded Q all increase, due to the increase in the substitution of Ta5+ ions of Ba(Mg1/3Ta2/3)03 by W6+ ions from the melted BaWO4 at above 1430-degrees-C. With further addition of BaWO4, the unloaded Q decreases, due to an increase of the BaWO4 phase. The temperature coefficient of resonant frequency (TCF) can be controlled by the volume mixture rule of Ba(Mg1/3Ta2/3)03 and BaWO4. When 0.09 mol BaWO4 is added, TCF becomes 0 ppm/-degrees-C.
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页码：1062 / 1066
页数：5
相关论文
共 14 条
[1]  
[Anonymous], 1969, STRUCTURE PROPERTIES
[2]  
COHEN MU, 1963, REV SCI INSTRUM, V6, P68
[3]   MICROWAVE LOSS QUALITY OF BAZN1/3TA2/3O3 CERAMICS [J].
DESU, SB ;
OBRYAN, HM .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1985, 68 (10) :546-551
[4]  
ENDO K, 1987, J AM CERAM SOC, V70, pC215, DOI 10.1111/j.1151-2916.1987.tb05746.x
[5]   ORDERING IN COMPOUNDS OF A(B'0.33TA0.67)O3TYPE [J].
GALASSO, F ;
PYLE, J .
INORGANIC CHEMISTRY, 1963, 2 (03) :482-&
[6]  
Hakki BW, 1960, IRE T MICROWAVE THEO, V8, P402, DOI DOI 10.1109/TMTT.1960.1124749
[7]   BA(ZN1/3TA2/3)O-3 CERAMICS WITH LOW DIELECTRIC LOSS AT MICROWAVE-FREQUENCIES [J].
KAWASHIMA, S ;
NISHIDA, M ;
UEDA, I ;
OUCHI, H .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1983, 66 (06) :421-423
[8]  
KAWASHIMA S, 1977, 1ST P M FERR MAT THE, P293
[9]   MICROWAVE DIELECTRIC-PROPERTIES OF COMPLEX PEROVSKITE BA(MG1/3TA2/3)O3 [J].
KIM, ES ;
YOON, KH .
FERROELECTRICS, 1992, 133 (1-4) :187-192
[10]  
MATSUMOTO K, 1986, 6TH P IEEE INT S APP, P118
12