Results 31 to 40 of about 14,415,700 (341)
Experimental and mechanical characterizations of a lead free solder alloy for electronic devices [PDF]
, 2012 Electronic power modules devices are paramount components in the aeronautical,automotive and military applications. The solder layers are the most critical parts of the module and are usually subjected in their whole life to complex loading conditions ...
Alexis, Joël +3 more
core +2 more sources
Challenges and strategies toward long-term stability of lead-free tin-based perovskite solar cells
Communications Materials, 2022 Due to their outstanding optoelectronic properties, lead-based halide perovskite materials have been applied as efficient photoactive materials in solution-processed solar cells.
Ece Aktas +11 more
semanticscholar +1 more source
The Journal of Engineering, 2023 An evaluation of the performance of a recently developed formulation of (lead‐free) Sodium‐Bismuth titanate – Barium Titanate (NBT‐BT) piezoceramic is presented through the construction and testing of several immersion transducers based around a new ...
Thomas R. P. Kelley
doaj +1 more source
Advances in Oral and Maxillofacial Surgery, 2021 Aims: Orthognathic surgery corrects craniofacial and dentofacial disproportion that compromises breathing, masticatory function, and aesthetics. A patient's typology influences their psychosocial and physical pre-operative expectations and post-operative
Devie Falinda +5 more
doaj +1 more source
Ferroelectricity-free lead halide perovskites
Energy & Environmental Science, 2019 We employ direct piezoelectric force microscopy to examine the ferroelectric response of halide perovskites and prove that halide perovskites are ferroelectricity free.
Andrés Gómez +4 more
openaire +7 more sources
Coaching millennial leaders: Life stage versus the times we live in [PDF]
International Journal of Evidence Based Coaching and Mentoring, 2015 This paper presents the findings of a study focused on the experience of coaches when coaching millennial leaders (where millennials are those people born 1980-1999). Following a hermeneutic phenomenological approach using Interpretative Phenomenological
Helen Franklin
doaj
Instability of (1+1) de sitter space in the presence of interacting fields [PDF]
, 2010 Instabilities of two dimensional (1+1) de Sitter space induced by interacting fields are studied. As for the case of flat Minkowski space, several interacting fermion models can be translated into free boson ones and vice versa.
A. M. Polyakov +3 more
core +2 more sources
Heterostrain-enabled ultrahigh electrostrain in lead-free piezoelectric
Nature Communications, 2022 Piezoelectric materials provide high strain and large driving forces in actuators and can transform electrical energy into mechanical energy. Although they were discovered over 100 years ago, scientists are still searching for alternative lead-free ...
W. Feng +8 more
semanticscholar +1 more source
Kirigami–Origami‐Inspired Lead‐Free Piezoelectric Ceramics
Advanced Science, 2023 Kirigami‐ and oirigami‐inspired techniques have emerged as effective strategies for material structure design; however, the use of these techniques is usually limited to soft and deformable materials.
Zehuan Wang +9 more
doaj +1 more source
Lead‐Free Halide Perovskites for Light Emission: Recent Advances and Perspectives
Advancement of science, 2021 Lead‐based halide perovskites have received great attention in light‐emitting applications due to their excellent properties, including high photoluminescence quantum yield (PLQY), tunable emission wavelength, and facile solution preparation. In spite of
Xin Li +11 more
semanticscholar +1 more source