论文标题
无铅ba $ _ {0.95} $ ca $ _ {0.05} $ ti $ _ {0.89} $ sn $ _ {0.11} $ _ {0.11} $ o $ $ _3 $ ceramic通过sol-gel方法阐述的陶瓷，
Electrocaloric effect and high energy storage efficiency in lead-free Ba$_{0.95}$Ca$_{0.05}$Ti$_{0.89}$Sn$_{0.11}$O$_3$ ceramic elaborated by sol-gel method
论文作者
论文摘要
在无铅陶瓷ba $ _ {0.95} $ ca $ _ {0.05} $ _ {0.05} $ _ {0.89} $ _ {0.89} $ sn $ _ {0.11} $ _ {0.11} $ $ _3 $（bctsn）el sol sol sol sol sol sol sol sol sol sol sol sol sol sol-gel-gel-gel-gel-gel-gel-gel-gel-gel-gel-gel-gel-gel-gel-gel-gel-gel-gel-gel-gel-使用Rietveld改进分析从X射线数据中证实了相纯度结构，该分析揭示了四方（P4MM）和正骨（AMM2）在室温下的共存。通过介电和差扫描量热法检测到相变。通过P-E磁滞确定储能特性，并通过Maxwell方法间接计算电气性能。在相对较小的30 kV cm $^{ - 1} $的场上获得的电源温度变化的$δ$ t = 0.807 K和高储能效率可以使BCTSN陶瓷成为环保友好型冷藏和能源存储应用的有前途的候选者。
Structural, dielectric, ferroelectric, energy storage properties, and electrocaloric effect were studied in lead-free ceramic Ba$_{0.95}$Ca$_{0.05}$Ti$_{0.89}$Sn$_{0.11}$O$_3$ (BCTSn) elaborated by sol-gel method. Phase purity structure was confirmed from X-ray data using Rietveld refinement analysis which revealed the coexistence of tetragonal (P4mm) and orthorhombic (Amm2) symmetries at room temperature. Phase transitions were detected by dielectric and differential scanning calorimetry results. Energy storage properties were determined from P-E hysteresis, and the electrocaloric properties were calculated indirectly via the Maxwell approach. The large value of electrocaloric temperature change of $Δ$T=0.807 K obtained at a relatively small field of 30 kV cm$^{-1}$ and high energy storage efficiency can make BCTSn ceramic a promising candidate for environmentally friendly refrigeration and energy storage applications.
