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Archive for the ‘materials’ category: Page 12

Jul 22, 2024

Free 3D-printing datasets enable analysis, confidence in printed parts

Posted by in categories: 3D printing, materials

The Department of Energy’s Oak Ridge National Laboratory has publicly released a new set of additive manufacturing data that industry and researchers can use to evaluate and improve the quality of 3D-printed components. The breadth of the datasets can significantly boost efforts to verify the quality of additively manufactured parts using only information gathered during printing, without requiring expensive and time-consuming post-production analysis.

Data has been routinely captured over a decade at DOE’s Manufacturing Demonstration Facility, or MDF, at ORNL, where early-stage research in coupled with comprehensive analysis of the resulting components has created a vast trove of information about how 3D printers perform. Years of experience pushing the boundaries of 3D printing with novel materials, machines and controls have provided ORNL with the unique ability to develop and share comprehensive datasets. The newest dataset is now available for free through an .

The conventional manufacturing industry benefits from centuries of quality-control experience. However, additive manufacturing is a newer, non-traditional approach that typically relies on expensive evaluation techniques for monitoring the quality of parts. These techniques might include destructive mechanical testing or non-destructive X-ray computed tomography, which creates detailed cross-sectional images of objects without damaging them.

Jul 21, 2024

A recipe for cooking up more effective artificial neurons

Posted by in category: materials

The compressive study details a pathway for developing artificial spiking neurons out of new materials.

Jul 21, 2024

A Hidden Treasure in the Milky Way — Astronomers uncover Ultrabright X-ray Source

Posted by in categories: cosmology, materials

Astronomers uncovered that a well-known X-ray binary, whose exact nature has been a mystery to scientists until now, is actually a hidden ultraluminous X-ray source. X-ray binaries are intriguing systems consisting of two celestial bodies: a normal star and a compact, dead object such as a black hole or a neutron star that sucks material from its stellar companion. A few hundred such sources have been identified thus far in our Galaxy. When it comes to the most powerful phenomena in the Universe, the release of gravitational energy in X-ray binary systems stands out as a highly efficient process.

Among the first X-ray binary systems discovered in the cosmos is the system Cygnus X-3. Since the early 1970s, this binary system was noted for its ability to briefly emerge as one of the most intense radio sources, yet in a few days it dims or vanishes altogether.

This peculiar characteristic spurred early efforts, coordinated by telephone calls, to unite astronomical observations across the globe.

Jul 20, 2024

A new way to control the magnetic properties of rare earth elements

Posted by in category: materials

The special properties of rare earth magnetic materials are due to the electrons in the 4f shell. Until now, the magnetic properties of 4f electrons were considered almost impossible to control.

Jul 18, 2024

A new approach to accelerate the discovery of quantum materials

Posted by in categories: materials, quantum physics

Researchers at the Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) and several collaborating institutions have successfully demonstrated an innovative approach to find breakthrough materials for quantum applications. The study is published in the journal Nature Communications.

Jul 17, 2024

Space radiation can damage satellites − my team discovered that a next-generation material could self-heal when exposed to cosmic rays

Posted by in categories: materials, satellites

The space environment is harsh and full of extreme radiation. Scientists designing spacecraft and satellites need materials that can withstand these conditions.

In a paper published in January 2024, my team of materials researchers demonstrated that a next-generation semiconductor material called metal-halide perovskite can actually recover and heal itself from radiation damage.

Jul 17, 2024

Atom by Atom, Scientists Built a Wonder Material That May Transform Electronics

Posted by in categories: materials, particle physics

This high-mobility film shows unprecedented potential.

Jul 16, 2024

Breakthrough in quantum microscopy: Researchers are making electrons visible in slow motion

Posted by in categories: materials, quantum physics

Physicists at the University of Stuttgart under the leadership of Prof. Sebastian Loth are developing quantum microscopy which enables them for the first time to record the movement of electrons at the atomic level with both extremely high spatial and temporal resolution. Their method has the potential to enable scientists to develop materials in a much more targeted way than before.

The researchers have published their findings in the journal Nature Physics (“Terahertz spectroscopy of collective charge density wave dynamics at the atomic scale”).

“With the method we developed, we can make things visible that no one has seen before,” says Prof. Sebastian Loth, Managing Director of the Institute for Functional Matter and Quantum Technologies (FMQ) at the University of Stuttgart. “This makes it possible to settle questions about the movement of electrons in solids that have been unanswered since the 1980s.” However, the findings of Loth’s group are also of very practical significance for the development of new materials.

Jul 15, 2024

Learning to Move, Learning to Play, Learning to Animate

Posted by in categories: materials, robotics/AI

Is a cross-disciplinary multimedia performance piece featuring self-developed found material robots, real-time AI generation, motion tracking, audio spatialization, and bio-feedback-based audio synthesis. The immersive piece challenges the human-centric perspective and invites audiences to contemplate the coexistence of technology, nature, and us.

Credits (in alphabetical order):
Co-Directors: Mingyong Cheng, Sophia Sun, Han Zhang.
Performers: Yuemeng Gu, Erika Roos.
Robotic Engineer: Sophia Sun.
Visual Artist: Mingyong Cheng.
Sound Designer: Han Zhang.
Lighting Engineer: Zehao Wang, Han Zhang.
Video Editor: Yuemeng Gu.
Post Production Coordinator: Mingyong Cheng.
Technical \& Installation Support: Yifan Guo, Ke Li, Zehao Wang, Zetao Yu.

Continue reading “Learning to Move, Learning to Play, Learning to Animate” »

Jul 14, 2024

Scientists probe chilling behavior of promising solid-state cooling material

Posted by in categories: food, materials

A research team led by the Department of Energy’s Oak Ridge National Laboratory has bridged a knowledge gap in atomic-scale heat motion. This new understanding holds promise for enhancing materials to advance an emerging technology called solid-state cooling.

An environmentally friendly innovation, solid-state cooling could efficiently chill many things in daily life from food to vehicles to electronics — without traditional refrigerant liquids and gases or moving parts. The system would operate via a quiet, compact and lightweight system that allows precise temperature control.

Although the discovery of improved materials and the invention of higher-quality devices are already helping to promote the growth of the new cooling method, a deeper understanding of material enhancements is essential. The research team used a suite of neutron-scattering instruments to examine at the atomic scale a material that scientists consider to be an optimal candidate for use in solid-state cooling.

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