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陈湘明
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期刊论文
Structural and dielectric characterization of Ba4Nd2Ti4+xTa6−xO30−x/2 nonstoichiometric ceramics
J. Mater. Res., Vol. 16, No.10, Oct 2001，-0001，（）：
Ba4Nd2Ti4Ta6O30 dielectric ceramics with high-e and low dielectric loss were modified to improve the temperature coefficient of dielectric constant. Through partial substitution of Ti4+ for Ta5+, a significantly reduced temperature coefficient of dielectric constant (te 4 −664p pm/℃) combined with a dielectric constant above 110 and a low dielectric loss (tand-0.0005 to 0.0006 at 1MHz) resulted in the nonstoichiometric dielectric ceramics with nominal compositions Ba4Nd2Ti4+xTa6−xO30−x/2 (x 4 0.8-1.2).
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