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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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ll921(½ð±Ò+12, ·ÒëEPI+1): 2011-02-27 13:52:34
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Õâ¶ÎÃ²ËÆÃ»¶àÉÙÎÊÌâ°¡£¬Í¦ºÃµÄ 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]. |
3Â¥2011-02-27 12:39:10














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