Results 71 to 80 of about 73,219 (218)

Investigation into the strength, toughness and porosity of barium titanate PTC ceramics [PDF]

, 1990
The effect of processing variables on the Strength and Toughness of n-doped Barium Titanate PTC Ceramics has been investigated. Fracture Toughness, K(_IC), has been measured using an indentation technique and a more conventional notched beam specimen ...
Blamey, Jonathan M.
core  

Mechanochemical Piezoelectric Catalysis: Advancing the Hydrogenation of Alkenes

Advanced Science, EarlyView.
This study presents mechanochemical piezoelectric catalysis for alkene hydrogenation, eliminating the need for transition metals, H2, and solvents. The method effectively hydrogenates diverse activated and unactivated alkenes and shows potential for modifying bioactive molecules in pharmaceuticals.
Zixi Ai, Mengting Liu, Xiaohong Wang, Xiaochun He, Xuemei Zhang, Zhong Lian   +5 more
wiley   +1 more source

Assessing lead-free barium zirconate titanate-barium calcium titanate thin films ferroelectric properties in planar configuration

, 2021
This work reports about the production and characterization of Barium Zirconate Titanate-Barium Calcium Titanate (BZT-BCT) ferroelectric-piezoelectric thin films proposed as an alternative to toxic lead zirconate titanate (commonly referred as PZT ...
Scaldaferri R., Barbato P. S., Aprea P., Casuscelli V., Caputo D.   +4 more
core   +1 more source

Stretchable, Tough, and Luminescent Perovskite Molecular Ferroelectric Composite: Empowering Reliable Self‐Powered Motion Sensing in High Humidity and Subzero Temperatures

Advanced Science, EarlyView.
A flexible molecular ferroelectric composite is fabricated via in situ growth of luminescent DMAA‐MnCl3 ferroelectric crystals within a SEBS/SIS double‐polymer matrix. It delivers 7.54 MPa tensile strength, over 1200% tensile strain, durable piezoelectric motion sensing, and excellent harsh‐environment stability for all‐weather wearable biomechanical ...
Shuangqing Li, Zhe‐Kun Xu, Zheng Xing, Jin‐Wang Liu, Yong‐Quan Wu, Peng‐Fei Li, Zhong‐Xia Wang   +6 more
wiley   +1 more source

Magnetoelectric Nanoparticles Enable Modulation of Cortical Networks by Low‐Intensity Static Magnetic Fields In Vitro

Advanced Science, EarlyView.
Neuromodulation strategies are increasingly needed to stimulate, restore, or replace altered neuronal activity in disease. Cobalt ferrite‐barium titanate (CFO–BTO) magnetoelectric nanoparticles convert low‐intensity static magnetic fields into local electrical modulation of cortical networks.
Nathalia Cancino‐Fuentes, Alejandro Suarez‐Perez, Elric Zhang, Hao Ye, Marta Bonato, Joana Covelo, Vitaly Pustovalov, Anton Guimera‐Brunet, Xavi Illa, Valentin Gantenbein, Cagatay M. Oral, Marta Parazzini, Salvador Pané, Maria V. Sanchez‐Vives   +13 more
wiley   +1 more source

Detection of Degraded Formulated BaTiO3 Induced by Oxygen Vacancy Migration Using Ultrasonic Attenuation

Advanced Science, EarlyView.
Oxygen vacancy migration is a key degradation mechanism for the majority of MLCCs. There are limitations with spatially identifying regions of a capacitor that have degraded due to oxygen vacancy migration. This work showcases ultrasonic attenuation as a non‐electrical and nondestructive technique of identifying oxygen vacancy degraded regions of an ...
Haley N. Jones, Clive A. Randall, Andrea P. Argüelles, Susan Trolier‐McKinstry   +3 more
wiley   +1 more source

Barium titanate synthesis, mechanism of action and its applications in dentistry: A literature review

Journal of Applied Biomaterials & Functional Materials
Background: In recent years, barium titanate (BaTiO 3 ) has demonstrated advancements in the field of dentistry among dental ceramics. This ceramic substance has piezoelectric qualities that are comparable to those of bone, which is crucial for ...
Rand Naseer Kadhum, Thekra Ismael Hamad
doaj   +1 more source

Heat‐to‐Electricity Conversion Using Barium Strontium Titanate Multilayer Capacitors

Advanced Science, EarlyView.
Lead‐free barium strontium titanate multilayer capacitors convert waste heat into electricity via the Olsen electro‐thermodynamic cycle. These capacitors achieve an energy density of 3.7 J cm−3, comparable to the performance of lead‐based ceramics. Their high dielectric strength and broad operating temperature window below 100°C make them practical for
Fan Ni, Junning Li, Uros Prah, Youri Nouchokgwe, Yves Fleming, Ashwath Aravindhan, Moiz Khalil, Torsten Granzow, Sakyo Hirose, Veronika Kovacova, Emmanuel Defay   +10 more
wiley   +1 more source

Freestanding Hierarchical‐Porous BCZT Thin Films Enable Efficient Ultrasonic Energy Harvesting in Soft Tissue

Advanced Science, EarlyView.
Freestanding hierarchical‐porous BCZT thin films integrate a compliant porous surface with a dense piezoceramic backbone to balance mechanical reliability, voltage sensitivity, and acoustic coupling. The films enable stable wearable pulse‐wave monitoring and enhanced tissue‐coupled ultrasonic energy harvesting, offering a promising route toward soft ...
Zifan Li, Shengwei Gao, Wang Hong, Yuxin Chen, Yiyang Gu, Xu Wang, Chen Tang, Ying Hong, Xuemu Li, Xiaodong Yan, Yi Zheng, Yiming Liu, Junchen Liao, Biao Wang, Shiyuan Liu   +14 more
wiley   +1 more source

Geometric tuning of energy storage in barium titanate/strontium titanate nanocomposites

Tạp chí Khoa học và Công nghệ
This study employs phase-field simulations to systematically investigate the impact of barium titanate nanoparticle geometry on polarization domain structures and energy storage properties in barium titanate/strontium titanate nanocomposites.
Ha Thi Dang, Dang Thi Hong Hue, Ba-Hieu Vu, Trong-Giang Nguyen, Van-Hai Dinh, Le Van Lich   +5 more
doaj   +1 more source