作者单位
摘要
1 Department of Physics, Rajalakshmi Engineering College, Thandalam, Chennai 602105, Tamil Nadu, India
2 Department of Applied Physics, Sri Venkateswara College of Engineering, Chennai 602117, Tamil Nadu, India
3 Department of Applied Chemistry, Sri Venkateswara College of Engineering, Chennai 602117, Tamil Nadu, India
Molecular orbital analysis Corrosion inhibition NBO analysis 
光谱学与光谱分析
2019, 39(12): 3940
作者单位
摘要
1 Research Scholar, Department of Physics, Sri Venkateshwara College of Engineering, Sriperumbudur 602105, Tamil Nadu, India
2 Department of Physics, Sri Venkateswara College of Engineering, Sriperumbudur 602105, Tamil Nadu, India
3 Department of Physics, Dhanalakshmi College of Engineering, Tambaram, Chennai, Tamil Nadu, India
DFT NBO NPA 
光谱学与光谱分析
2019, 39(3): 977
作者单位
摘要
1 Department of Physics, Rajalakshmi Engineering College, Thandalam, Chennai 602105, India
2 Department of Applied Physics, Sri Venkateswara College of Engineering, Chennai 602117, India
DFT NBO Density of states 
光谱学与光谱分析
2018, 38(11): 3631
作者单位
摘要
1 Research Scholar, Department of Physics, Sri Venkateshwara College of Engineering, Sriperumbudur 602105, Tamil Nadu, India
2 Department of Physics, Sri Venkateswara College of Engineering, Sriperumbudur 602105, Tamil Nadu, India
3 Department of Physics, Dhanalakshmi College of Engineering, Tambaram, Chennai, Tamil Nadu, India
DFT NBO NPA NLO 
光谱学与光谱分析
2017, 37(9): 2984
作者单位
摘要
1 Research Scholar, Department of Physics, Sri Venkateshwara College of Engineering, Sriperumbudur 602105, Tamilnadu, India
2 Department of Physics, Sri Venkateswara College of Engineering, Sriperumbudur 602105, Tamilnadu, India
3 Department of Physics, Sri Lakshmi Ammaal Engineering College, Chennai, Tamilnadu, India
LAO DFT NBO NCA 
光谱学与光谱分析
2016, 36(8): 2721
作者单位
摘要
1 Department of Physics, Sri Lakshmi Ammaal Engineering College, Chennai, Tamil Nadu, India
2 Department of Physics, Sri Venkateswara College of Engineering, Sriperumbudur 602105 Tamil Nadu, India
3 Research Scholar, Department of Physics, Sri Venkateshwara College of Engineering, Sriperumbudur 602105, Tamil Nadu, India
DMPABA DFT NBO NPA 
光谱学与光谱分析
2016, 36(4): 1273
作者单位
摘要
1 Department of Physics, Rajalakshmi Engineering College, Thandalam, Chennai602105, Tamil Nadu, India
2 Department of Applied Physics, Sri Venkateswara College of Engineering, Chennai602105, Tamil Nadu, India
Density functional theory (DFT) Natural Bond Orbital (NBO) Analysis Hyperpolarizability 
光谱学与光谱分析
2015, 35(6): 1506
作者单位
摘要
1 南京航空航天大学 智能材料与结构航空科技重点实验室,江苏 南京 210016
2 南京航空航天大学 智能材料与结构精密驱动研究所,江苏 南京 210016
为了制备高性能无铅压电陶瓷,采用固相合成法和水热法合成了(KxNa1-x)NbO3 (KNN)无铅压电陶瓷粉体。利用压制成型法在不同压力下成型,对不同粉体的烧结性能进行了对比,研究了粘结剂(PVA)添加量和陶瓷密度之间的关系,测量了用不同电压极化后陶瓷的压电特性,以及介电常数与温度之间的关系。结果表明:与固相合成法相比,水热合成的粉体有更好的烧结性,添加K会降低陶瓷的烧结性,陶瓷的密度对烧结温度非常敏感。1050 ℃保温2 h得到的K0.5Na0.5NbO3陶瓷具有较高的压电常数d33 (90 pC/N),该陶瓷的居里温度为410 ℃。
无铅压电陶瓷 水热法 烧结特性 (K (K Na)NbO3 Na)NbO3 lead-free piezoelectric ceramics hydrothermal method sinterability 
光学 精密工程
2009, 17(1): 132

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