scholarly journals Local structure change evidenced by temperature-dependent elastic measurements: Case study on Bi1/2Na1/2TiO3-based lead-free relaxor piezoceramics

2014 ◽  
Vol 115 (8) ◽  
pp. 084108 ◽  
Author(s):  
Robert Dittmer ◽  
Wook Jo ◽  
Kyle G. Webber ◽  
Jacob L. Jones ◽  
Jürgen Rödel
Keyword(s):  
Local Structure ◽  
Structure Change ◽  
Lead Free ◽  
Temperature Dependent

Temperature dependent fracture toughness of KNN-based lead-free piezoelectric ceramics

2019 ◽  
Vol 174 ◽  
pp. 369-378 ◽  
Author(s):  
Yingwei Li ◽  
Yixuan Liu ◽  
Paul-Erich Öchsner ◽  
Daniel Isaia ◽  
Yichi Zhang ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Piezoelectric Ceramics ◽  
Lead Free ◽  
Temperature Dependent

Local structure and piezoelectric instability in lead-free (1 − x)BaTiO3-xA(Cu1/3Nb2/3)O3(A = Sr, Ca, Ba) solid solutions

RSC Advances ◽  
2014 ◽  
Vol 4 (3) ◽  
pp. 1283-1292 ◽  
Author(s):  
Deepam Maurya ◽  
Ashok Kumar ◽  
Valeri Petkov ◽  
James E. Mahaney ◽  
Ram S. Katiyar ◽  
...  
Keyword(s):  
Solid Solutions ◽  
Local Structure ◽  
Lead Free

Temperature Dependent Solvent Effects in Photochemistry of 1-Phenylpentan-1-ones

1999 ◽  
Vol 64 (12) ◽  
pp. 2007-2018 ◽  
Author(s):  
Petr Klán ◽  
Jaromír Literák
Keyword(s):  
Solvent Effects ◽  
Solvent Polarity ◽  
Structure Change ◽  
Type Ii ◽  
Temperature Dependent ◽  
Methyl Derivative ◽  
Methyl Substitution ◽  
Weak Bases ◽  
Norrish Type ◽  
Small Structure

Temperature dependent solvent effects have been investigated on the Norrish Type II reaction of 1-phenylpentan-1-one and its p-methyl derivative. Efficiencies of the photoreaction were studied in terms of solvent polarity and base addition as a function of temperature. Such a small structure change as the p-methyl substitution in 1-phenylpentan-1-one altered the temperature dependent photoreactivity in presence of weak bases. The experimental results suggest that the hydrogen bonding between the Type II biradical intermediate OH group and the solvent is weaker for 1-(4-methylphenyl)pentan-1-one than that for 1-phenylpentan-1-one at 20 °C but the interactions probably vanish in both cases at 80 °C.

Dielectric Behavior of Mechano-chemically Synthesized [(CH3NH3)3Bi2Br9]: A Lead Free Hybrid Perovskite

2021 ◽  
Author(s):  
Swagatalaxmi Pujaru ◽  
Priyabrata Sadhukhan ◽  
Basudev Ghosh ◽  
Arup Dhara ◽  
Sachindranath Das
Keyword(s):  
Impedance Spectroscopy ◽  
Complex Impedance ◽  
Negative Temperature ◽  
Dielectric Behavior ◽  
Lead Free ◽  
Published Data ◽  
Temperature Dependent ◽  
Microstructural Parameters ◽  
Hybrid Perovskite ◽  
Refinement Method

Abstract Lead free hybrid halide perovskite (CH3NH3)3Bi2Br9 has been successfully synthesized by mechano-chemical method. The microstructure analysis by Rietveld’s refinement method revealed that the crystal belongs to trigonal system with space group P3 ̅m1. The obtained microstructural parameters are well in agreement with the previously published data. Temperature-dependent ac conductivity, impedance spectroscopy, and complex dielectric properties have been investigated in detail. The negative temperature coefficient of resistance behaviour reveals the semiconducting nature of the materials. The complex impedance spectroscopy also supports the semiconducting nature of the sample with activation energy for conduction ~0.38 eV.

Local Structure Change Around Ni Atoms in MgNi Alloys during Mechanical Alloying Process

2004 ◽  
Vol 20-21 ◽  
pp. 635-640 ◽  
Author(s):  
Masaki Sakurai ◽  
Toshio Nasu ◽  
Yuh Nomura ◽  
Takeshi Usuki ◽  
Eiichiro Matsubara
Keyword(s):  
Mechanical Alloying ◽  
Local Structure ◽  
Structure Change

scholarly journals Local-structure change rendered by electronic localization-delocalization transition in cerium-based metallic glasses

2018 ◽  
Vol 97 (6) ◽  
Author(s):  
Qiang Luo ◽  
Björn Schwarz ◽  
Janine C. Swarbrick ◽  
Jozef Bednarčik ◽  
Yingcai Zhu ◽  
...  
Keyword(s):  
Metallic Glasses ◽  
Local Structure ◽  
Structure Change ◽  
Electronic Localization

scholarly journals Temperature-dependent local structure and superconductivity of BaPd2As2 and SrPd2As2

2018 ◽  
Vol 98 (9) ◽  
Author(s):  
K. Terashima ◽  
E. Paris ◽  
L. Simonelli ◽  
E. Salas-Colera ◽  
A. Puri ◽  
...  
Keyword(s):  
Local Structure ◽  
Temperature Dependent

Temperature‐dependent fatigue modelling of a novel Ni, Bi and Sb containing Sn‐3.8Ag‐0.7Cu lead‐free solder alloy

2020 ◽  
Vol 43 (12) ◽  
pp. 2883-2891
Author(s):  
Q.B. Tao ◽  
L. Benabou ◽  
Van Nhat Le ◽  
Ngoc Anh Thi Nguyen ◽  
Hung Nguyen‐Xuan
Keyword(s):  
Solder Alloy ◽  
Lead Free ◽  
Lead Free Solder ◽  
Temperature Dependent ◽  
Lead Free Solder Alloy ◽  
Free Solder

scholarly journals Structure and temperature dependent electrical properties of lead-free Bi0.5Na0.5TiO3- SrZrO3ceramics

2014 ◽  
Vol 60 ◽  
pp. 012047 ◽  
Author(s):  
Adnan Maqbool ◽  
Jamil ur Rahman ◽  
Ali Hussain ◽  
Jong Kyu Park ◽  
Tae Gone Park ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Lead Free ◽  
Temperature Dependent
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