Study on the Structure and Properties of SrTiO3 Modified K0.5Na0.5NbO3 Lead-Free Ceramics with a Sintering Aid of NiO
ECS Journal of Solid State Science and Technology(2022)
摘要
Abstract In this experiment, a new piezoelectric ceramic system (1-x)K0.5Na0.5NbO3-xSrTiO3-0.4%molNiO (abbreviated as KNNST) with high properties and density was obtained by using K0.5Na0.5NbO3 (abbreviated as KNN) as matrix, adding new component SrTiO3 and sintering aid NiO, and adopting traditional solid-state sintering process at lower sintering temperature. XRD, SEM and other modern test analysis show that when a small amount of sintering aid NiO is added, KNNST ceramic samples with SrTiO3 doping in the range of 0≤x≤0.08 can form a single perovskite structure without any impurity phase. When 0.02更多
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关键词
lead-free,piezoelectric ceramics,electrical properties,structure,potassium sodium niobate
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