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xx ceramics, with the formula xx where M2+= Ca, Mg, or a transition metal (TM) [1-8], have the orthorhombic columbite structure. There is a growing interest in the columbites as microwave dielectric ceramics due to their lower processing temperatures, less complicated processing, lower cost of niobium compared with tantalum and low-temperature cofired ceramics (LTCC) temperatures with Cu2+ [9]. Recently, much more attentions have also been paid to the interesting magnetic properties of niobates [1].

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xx ceramics, with the formula xx where M2+= £¨Ca2+, Mg2+£©, or a transition metal (TM)£¨ ion£© [1-8], have the orthorhombic columbite structure. There is a growing interest in the columbites as microwave dielectric ceramics due to their lower processing temperatures, less complicated processing, lower cost of niobium compared with tantalum and low-temperature cofired ceramics (LTCC) temperatures with Cu2+ [9]. Recently, much more attentions have also been paid to the interesting magnetic properties of niobates [1].
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Risingstar

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ll921(½ð±Ò+12, ·­ÒëEPI+1): 2011-02-27 13:52:34
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xx ceramics, with the formula xx where M2+= Ca, Mg, or a transition metal (TM) [1-8], have the orthorhombic columbite structure. There is a growing interest in the columbites as microwave dielectric ceramics due to their lower processing temperatures, less complicated processing, lower cost of niobium compared with tantalum and low-temperature cofired ceramics (LTCC) temperatures with Cu2+ [9]. ÕâÀï²»¶®Recently, much more attention have also been paid to the interesting magnetic properties of niobates [1].
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