Chor Yen Yap, Chee Kai Chua, Zhili Dong, Z. H. Liu, D. Q. Zhang, L. E. Loh, Swee Leong Sing
Selective Laser Melting (SLM) is a particular rapid prototyping, 3D printing, or
Additive Manufacturing (AM) technique designed to use high power-density laser
to melt and fuse metallic powders. A component is built by selectively melting
and fusing powders within and between layers. The SLM technique is also commonly
known as direct selective laser sintering, LaserCusing, and direct metal laser
s... hiện toàn bộ
The formation of the Schottky barrier height (SBH) is a complex problem because
of the dependence of the SBH on the atomic structure of the metal-semiconductor
(MS) interface. Existing models of the SBH are too simple to realistically treat
the chemistry exhibited at MS interfaces. This article points out, through
examination of available experimental and theoretical results, that a
comprehensive,... hiện toàn bộ
Matias Acosta, Nikola Novak, Verónica García, Satyanarayan Patel, Rahul Vaish, Jurij Koruza, George A. Rossetti, Jürgen Rödel
We present a critical review that encompasses the fundamentals and
state-of-the-art knowledge of barium titanate-based piezoelectrics. First, the
essential crystallography, thermodynamic relations, and concepts necessary to
understand piezoelectricity and ferroelectricity in barium titanate are
discussed. Strategies to optimize piezoelectric properties through
microstructure control and chemical m... hiện toàn bộ
Chuancheng Duan, Jake Huang, Neal P. Sullivan, Ryan O’Hayre
Proton-conducting oxides are a class of solid-state ion-conducting ceramic
materials that demonstrate significant hydrogen ion (proton) conductivity at
intermediate temperatures (e.g., 300–700 °C). They are garnering significant
attention due to several unique characteristics that distinguish them from both
higher temperature oxygen ion conducting oxides and lower temperature
proton-conducting pol... hiện toàn bộ
Zhengyi Zhang, Yifei Jin, Jun Yin, Changxue Xu, Ruitong Xiong, Kyle Christensen, Bradley R. Ringeisen, Douglas B. Chrisey, Yong Huang
Three-dimensional (3D) bioprinting, as a freeform biomedical manufacturing
approach, has been increasingly adopted for the fabrication of constructs
analogous to living tissues. Generally, materials printed during 3D bioprinting
are referred as bioinks, which may include living cells, extracellular matrix
materials, cell media, and/or other additives. For 3D bioprinting to be an
enabling tissue en... hiện toàn bộ
Over the past two decades, fiber laser technologies have matured to such an
extent that they have captured a large portion of the commercial laser
marketplace. Yet, there still is a seemingly unquenchable thirst for ever
greater optical power to levels where certain deleterious light-matter
interactions that limit continued power scaling become significant. In the past
decade or so, the industry h... hiện toàn bộ
We introduce the concept of a probabilistic or p-bit, intermediate between the
standard bits of digital electronics and the emerging q-bits of quantum
computing. We show that low barrier magnets or LBMs provide a natural physical
representation for p-bits and can be built either from perpendicular magnets
designed to be close to the in-plane transition or from circular in-plane
magnets. Magnetic t... hiện toàn bộ