Results 41 to 50 of about 636 (129)

Ceramics fillers enhancing effects on the dielectric properties of poly(vinylidene fluoride) matrix composites prepared by the torque rheometer method

open access: yesResults in Physics, 2019
The dielectric properties of ceramic-polymer composites were investigated using different lead-free ferroelectrics, 0.50[Ba(Zr0.2Ti0.8)O3]–0.50(Ba0.7Ca0.3)TiO3 (BZT-BCT) and 0.96(K0.48Na0.52)(Nb0.95Sb0.05)O3–0.04Bi0.5(Na0.82K0.18)0.5ZrO3 (KNNS-BNKZ), as ...
S.A. Riquelme   +2 more
doaj   +1 more source

Dielectric behaviors and relaxor characteristics in Bi0.5Na0.5TiO3-BaTiO3 ceramics [PDF]

open access: yesJournal of Advanced Dielectrics, 2019
Microstructure and dielectric behaviors of heating/cooling and bias-field were investigated in lead-free ceramics (1−x)Bi0.5Na0.5TiO3−xBaTiO3 (BNT−xBT, x=0, 0.02, 0.04, 0.06, 0.08 and 0.10).
Pei Chen   +8 more
doaj   +1 more source

Large electrocaloric effect over a wide temperature span in lead-free bismuth sodium titanate-based relaxor ferroelectrics

open access: yesJournal of Materiomics, 2023
For efficient solid-state refrigeration technologies based on electrocaloric effect (ECE), it is a great challenge of simultaneously obtaining a large adiabatic temperature change (ΔT) within a wide temperature span (Tspan) in lead-free ferroelectric ...
Xiaopo Su   +9 more
doaj   +1 more source

Shared molecular framework and bidirectional effects of osteoporosis on periodontal disease and dental implant therapy in the elderly

open access: yesPeriodontology 2000, EarlyView.
Abstract Objectives This review synthesizes evidence regarding the prevalence, epidemiological associations, and mechanistic pathways between osteoporosis, periodontal disease, and dental implant therapy. Materials and Methods A literature review was conducted to identify studies focused on: osteoporosis, periodontal disease, and dental implants ...
Samin Sirous   +4 more
wiley   +1 more source

Electric Field‐Induced Phase Transition Behaviour in Sodium Bismuth Titanate‐Based Ceramics

open access: yesAdvanced Energy & Sustainability Research
Lead‐free sodium bismuth titanate (Na0.5Bi0.5TiO3, NBT)‐based ceramics have emerged as leading candidates to replace Pb‐based piezoelectric materials due to their promising ferroelectric and piezoelectric performance. Their functional performance remains
Hareem Zubairi, Ge Wang
doaj   +1 more source

Recent Development in Solar‐to‐Hydrogen Conversion Systems

open access: yesWIREs Energy and Environment, Volume 15, Issue 3, September 2026.
This review compares three solar‐driven hydrogen production methods, photocatalysis (PC), photoelectrochemical cells (PEC), and photovoltaic–electrochemical (PV–EC) systems by examining their mechanisms, materials, stability, and efficiency. Nanocrystal‐based PC catalysts achieved the highest quantum efficiency (94%), while PV–EC and Si nanowire PEC ...
Rabia Zafar Ali   +3 more
wiley   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

open access: yesAdvanced Engineering Materials, Volume 28, Issue 15, 5 August 2026.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele   +2 more
wiley   +1 more source

Biodegradable, Biologically Safe Nanogenerators for Self‐Powered Bio‐Integrated Systems

open access: yesSmall Structures, Volume 7, Issue 8, August 2026.
Biodegradable TENGs, PENGs, and hybrid systems convert biomechanical motions into electrical signals while safely degrading after use. This review highlights their working mechanisms, biodegradable material platforms, and wearable and implantable bio‐integrated applications, including motion and respiration monitoring, biosignal detection, electrical ...
Sungkeun Han   +5 more
wiley   +1 more source

Polymer‐Derived Ceramics: A Materials Platform for Advanced Energy and Environmental Applications

open access: yesJournal of the American Ceramic Society, Volume 109, Issue 8, August 2026.
Polymer‐derived ceramics (PDCs) represent a unique class of materials bridging polymer chemistry and ceramic science, perfectly suited for the design of advanced materials for current technological challenges of high societal impact particularly in energy and environmental domains.
Hippolyte Dory   +2 more
wiley   +1 more source

Research Progress and Prospects of High‐Entropy Oxide Ceramic for Dielectric Energy Storage

open access: yesNational Materials, Volume 1, Issue 1, Page 33-47, July 2026.
This review highlights the high‐entropy strategy in high‐entropy oxide ceramics for dielectric energy storage, emphasizing enhanced breakdown strength, polarization, and thermal stability. Key material systems, computational tools, and remaining challenges in scalable fabrication are discussed, along with future research directions. ABSTRACT Dielectric
Zhongqian Lv   +3 more
wiley   +1 more source

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