CAJ | 학술논문

利用固相反应法在950 ℃预烧结、不同烧结温度条件下制备了BaCu3Ti4O 12(BCTO)陶瓷样品,测量了各样品在不同频率下的介电常数和介电损耗随温度的变化关系,发现BCTO的介电常数比CaCu3Ti4O 12的介电常数小.容差因子计算发现BCTO的晶体结构容易畸变,XRD图分析表明样品中除了含有BCTO晶相外,还含有Cu3TiO5和Cu3TiO4等杂质,从而大大降低了BCTO的介电常数.
이용고상반응법재950 ℃예소결、불동소결온도조건하제비료BaCu3Ti4O 12(BCTO)도자양품,측량료각양품재불동빈솔하적개전상수화개전손모수온도적변화관계,발현BCTO적개전상수비CaCu3Ti4O 12적개전상수소.용차인자계산발현BCTO적정체결구용역기변,XRD도분석표명양품중제료함유BCTO정상외,환함유Cu3TiO5화Cu3TiO4등잡질,종이대대강저료BCTO적개전상수.
BaCu3Ti4O 12 (BCTO) ceramics were prepared by the traditional solid-state reaction technique and calcined at 9500C, and sintered at different temperature. The temperature dependence of dielectric constant and dielectric loss at different frequencies of each sample were measured. The dielectric constant of BCTO was small than CCTO's. Tolerance factor analysis found that the crystal structure of BCTO was easy distortion. XRD showed that the samples not only contained BCTO phase, but also impurities such as Cu3TiO5 and Cu3TiO4.