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中文摘要：
对Pb（Ni1／3Sb2／3）-PbZrO3-PbTiO3陶瓷烧结和压电性能的研究表明：当含有48mol％PbTiO3和少于10mol％Pb（Ni1／3Sb2／3）的粉体在850℃下煅烧2h，得到单一钙钛矿结构，但是如果Pb（Ni1/3Sb2/3）组成在12mol％～14mol％之间时，则三方相和四方相共存。所以材料的准同相界在Pb（Ni1／3Sb2/3）=12mol％，PbZrO3=40mol％，PbTiO3=48mol％。当该组分在1260℃至1280℃烧结时得到的烧结物密度最大为7．8g／cm^3。扫描电镜结果表明在1280℃时材料烧结气孔率最小。当处于准同相界的组分在1280℃烧结时，材料的机电耦合系数酶和机械品质因数Qm分别达到最大值0．488和最小值292．5。
英文摘要：
The sintering and piezoelectric properties of Pb（Ni1/3Sb2/3）O3-PbZrO3-PbTiO3 ceramics were investigated. When the powder contained 48 mol% PbTiO3 and less than 10 mol% Pb（Ni1/3Sb2/3）O3 followed by calcination at 850℃ for 2 h, the perovskite structure was obtained only; if the Pb（Ni1/3Sb2/3）O3 content was between 12 mol% and 14 mol%, both tetragonal and rhombohedral phases were obtained. The composition of the morphotropic phase boundary （MPB） in the Pb（Ni1/3Sb2/3）O3-PbZrO3-PbTiO3 system is Pb（Ni1/3Sb2/3）O3 =12 mol%, PbZrO3 =40 mol% and PbTiO3 =48 mol%. As the compact with composition at the MPB was sintered at 1260℃-1280℃ for 2 h, the maximum density of the sintered compact was 7.8 g/cm^3. The SEM micrographs indicated that the minimum porosity was reached upon sintering at 1280℃. When the compact with composition at MPB was sintered at 1280℃ for 2 h, the planar coupling coefficient （Kp） and mechanical quality coefficient （Qm） approached the maximum （0.488） and minimum values （292.5）
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