Structural and dielectric characterization of Ba_4Nd_2Ti_(4+x)Ta_(6-x)O_(30-x/2) nonstoichiometric ceramics

X.M. Chen; X.H. Zheng; J. Wang

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Structural and dielectric characterization of Ba_4Nd_2Ti_(4+x)Ta_(6-x)O_(30-x/2) nonstoichiometric ceramics

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Ba_4Nd_2Ti_4Ta_6O_(30) dielectric ceramics with high-E and low dielectric loss were modified to improve the temperature coefficient of dielectric constant. Through partial substitution of Ti~(4+) for Ta~(5+), a significantly reduced temperature coefficient of dielectric constant (#tau#_∈ = -664p pm/deg C) combined with a dielectric constant above 110 and a low dielectric loss (tan#delta#-0.0005 to 0.0006 at 1 MHz) resulted in the nonstoichiometric dielectric ceramics with nominal compositions Ba_4Nd_2Ti_(4+x)Ta_(6-x)O_(30-x/2) (x = 0.8-1.2).

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《Journal of Materials Research》 |2001年第10期|2859-2863|共5页
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X.M. Chen; X.H. Zheng; J. Wang;
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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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正文语种英语
中图分类工程材料学;
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Structural and dielectric characterization of Ba_4Nd_2Ti_(4+x)Ta_(6-x)O_(30-x/2) nonstoichiometric ceramics

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