稀有金属材料与工程
稀有金屬材料與工程
희유금속재료여공정
RARE METAL MATERIALS AND ENGINEERNG
2009年
z2期
387-390
,共4页
钛酸铜钙%钛酸钙%复合陶瓷%介电性能
鈦痠銅鈣%鈦痠鈣%複閤陶瓷%介電性能
태산동개%태산개%복합도자%개전성능
copper calcium titanate%calcium titanate%composite ceramics%dielectric properties
以CaCO_3、TiO_2、CuO为原料,采用两种工艺途径制备了(1-x)CCTO-xCTO(0≤x≤1)复合陶瓷材料.采用X射线衍射仪、扫描电子显微镜、阻抗分析仪对(1-x)CCTO-xCTO复相陶瓷的相组成、显微结构特征和介电性能进行了研究,发现不同工艺途径制备的(1-x)CCTO-xCTO复合陶瓷的显微结构略有差异,但介电性能基本相同,表明两种工艺途径制备的陶瓷中CCTO和CTO具有相似的连接情况.此外,还发现2/8CCTO-6/8CTO复合陶瓷在室温和1 kHz频率时,材料的介电常数ε接近1500,且介电损耗tgδ小于0.08.
以CaCO_3、TiO_2、CuO為原料,採用兩種工藝途徑製備瞭(1-x)CCTO-xCTO(0≤x≤1)複閤陶瓷材料.採用X射線衍射儀、掃描電子顯微鏡、阻抗分析儀對(1-x)CCTO-xCTO複相陶瓷的相組成、顯微結構特徵和介電性能進行瞭研究,髮現不同工藝途徑製備的(1-x)CCTO-xCTO複閤陶瓷的顯微結構略有差異,但介電性能基本相同,錶明兩種工藝途徑製備的陶瓷中CCTO和CTO具有相似的連接情況.此外,還髮現2/8CCTO-6/8CTO複閤陶瓷在室溫和1 kHz頻率時,材料的介電常數ε接近1500,且介電損耗tgδ小于0.08.
이CaCO_3、TiO_2、CuO위원료,채용량충공예도경제비료(1-x)CCTO-xCTO(0≤x≤1)복합도자재료.채용X사선연사의、소묘전자현미경、조항분석의대(1-x)CCTO-xCTO복상도자적상조성、현미결구특정화개전성능진행료연구,발현불동공예도경제비적(1-x)CCTO-xCTO복합도자적현미결구략유차이,단개전성능기본상동,표명량충공예도경제비적도자중CCTO화CTO구유상사적련접정황.차외,환발현2/8CCTO-6/8CTO복합도자재실온화1 kHz빈솔시,재료적개전상수ε접근1500,차개전손모tgδ소우0.08.
The (1-x)CCTO-xCTO(0≤x≤1) composite ceramics have been prepared by two methods using CaCO_3, TiO_2 and CuO as starting materials. The phase compositions, microstructure characteristic and dielectric properties of (1-x)CCTO-xCTO (0≤x≤1) composite ceramics were studied by X-ray diffraction (XRD), scanning electronic microscopy (SEM) and impedance spectroscopy. The results showed that the microstructure of (1-x)CCTO-xCTO ceramics prepared by method A was slightly different from that of (1-x)CCTO-xCTO ceramics prepared by method B, but the dielectric properties of (1-x)CCTO-xCTO ceramics prepared by method A was similar to that of (1-x)CCTO-xCTO ceramics prepared by method B. The 6/8CTO-2/8CCTO multiphase ceramics were found to exhibit a high dielectric constant of 1500 with a low dissipation factor of 0.08 at 1 kHz.
