Results 81 to 90 of about 6,473,156 (248)

Lead-Free Ferroelectric Ceramics with Perovskite Structure [PDF]

, 2011
None
Rigoberto López-Juárez, Federico González, María-Elena Villafuerte-Castrejón   +2 more
openaire   +2 more sources

Characterization of lead-free piezoelectric ceramics

, 2020
This project is focused on lead-free piezoelectric ceramics which are meda in CEITEC. Behaviour of these ceramics is quite different from the lead one. The first part is dedicated to dielectrics and its polarisation techniques.
Šťastná, Magdaléna
core  

Effect of Sintering Method on the Microstructure and Dielectric Properties of Lead-Free BCZT Ceramics

, 2017
Lead-free ceramic powders based on Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT) were successfully fabricated by the conventional solid-state reaction method. Two kinds of sintering methods: zero-time sintering (ZTS) and conventional sintering (CS) were applied to ...
Kamonpan Pengpat, Puripat Kantha, Nuttapon Pisitpipathsin, Teerapat Bunthod, Sasithron Jansrabua, Naris Barnthip, Siriporn Tigunta   +6 more
core   +1 more source

High‐Entropy Alloy Interlayers Toward Advanced Joining for High‐Performance Structural Applications: Current Progress and Emerging Challenges

Advanced Engineering Materials, EarlyView.
HEA interlayers offer a versatile route for joining high‐performance structural materials. Their compositional and structural design regulates interfacial reactions, suppresses brittle IMCs, and improves metallurgical bonding. Sandwich interlayers further integrate defect healing with precipitation strengthening, enabling improved strength–ductility ...
Lin Yuan, Jiafen Song, Jinglong Li, Jiangtao Xiong, Tao Yang   +4 more
wiley   +1 more source

A Novel Approach to Estimate the Transition Temperature via Dynamic Nanoindentation

Advanced Engineering Materials, EarlyView.
A new dynamic nanoindentation‐based method was developed that uses the stiffness ratio as an indicator of the elastic–plastic deformation contributions at different temperatures. The approach successfully identified transition temperatures in ferritic steel and distinguished them from continuously ductile austenitic steel.
Stefan Zeiler, Nikolaus Kostwein, Ronald Schnitzer, Christian Mitterer, Verena Maier‐Kiener   +4 more
wiley   +1 more source

Some studies of lead free KNN LN ceramics [PDF]

, 2011
Investigations in the development of lead-free (1 − x)(K0.5Na0.5)NbO3-xLiNbO3 piezoelectric ceramics have recently claimed comparable properties to the lead-based ferroelectric perovskites.
Bhattacharyya, Mallika
core  

Effects of Mg on Microstructure and Solidification of a Hypereutectic Zn–8 wt.%Al Alloy

Advanced Engineering Materials, EarlyView.
An appreciable set of results involving thermal data, microstructure, chemical composition, and microstructural growth laws is reported for ZnAlMg alloys. Such results demonstrate that ZnAlMg alloys have high potential for applications in automotive self‐lubricating components, batteries, and electrical systems.
Raí B. de Sousa, Jeverton L. Paixão, Daylla S. Silva, Bruno S. Sobral, Mucio D. de Medeiros, José E. Spinelli, Bismarck L. Silva   +6 more
wiley   +1 more source

Ultra-high energy harvester performance in KNN-based textured piezoceramics via multiscale reconfiguration design

Journal of Advanced Ceramics
The lower electromechanical performance of lead-free piezoelectric materials remains a critical bottleneck impeding their ability to replace lead-based materials in energy harvesting.
Caixia Zhu, Jin Qian, Luomeng Tang, Cheng Shi, Bo Shen, Jiwei Zhai   +5 more
doaj   +1 more source

PROGRESSES AND FURTHER CONSIDERATIONS ON THE RESEARCH OF PEROVSKITE LEAD-FREE PIEZOELECTRIC CERAMICS

, 2011
The research on lead-free piezoelectric ceramics has been one of the important fields worldwide for years for the sustainable development of the world.
DINGQUAN XIAO
core   +1 more source

Cryogenic Deformation Behavior of TiAl and Insights Into Embrittlement After High‐Temperature Exposure Combined With Secondary Ion Mass Spectroscopy of Near Surface Chemistry

Advanced Engineering Materials, EarlyView.
Near‐surface deuterium enrichment profiles for different microstructural types of TiAl after exposure at 700 °C in a heavy water‐containing environment. The deuterium levels are significantly higher than expected from natural occurrence, indicating that the heavy water dissociated during the exposure treatment and entered the specimens.
Jonathan D. H. Paul, Alexander Welle, Dirk Matthiessen, Michael Oehring, Fritz Appel, Florian Pyczak   +5 more
wiley   +1 more source