Discover Top Posts Tagged with #microstructures

Diskette Park - Microstructures EP

This Friday 3/20/26 on Underwater Computing.

Available on cassette, MiniDisc, 2xCD and digital download.

#diskette park #vaporwave #underwater computing #cassette #cassette tape #minidisc #compact disc #cd #physical media #new music #bandcamp #microstructures #microsampling

Engineers use nanoscale 'mask' to avoid leaky seams that come with standard layering process.

(Nanowerk News) University of Utah researchers have demonstrated a new method of 3D printing that avoids the leaky seams that come with the layer-by-layer process. Using a nanoscale “mask” that diffracts laser light into a holographic pattern of the desired shape, it fuses its print material solid in one shot. The process takes about 20 seconds, a stark contrast with the hours other laser-based printing methods can take. In a study published in the journal Nature Communications ("Single-exposure holographic lithography of ultra-high aspect-ratio microstructures"), the researchers demonstrated they could print multiple shapes in a conveyor-belt fashion. The research was led by Rajesh Menon, professor in the Department of Electrical & Computer Engineering at the Price College of Engineering, along with lab member Dajun Lin.

Diskette Park - Microstructures EP

This Friday 3/20/26 on Underwater Computing.

Available on cassette, MiniDisc, 2xCD and digital download.

#diskette park #underwater computing #vaporwave #microstructures #bandcamp #artists on tumblr #cassette #cassette tape #minidisc #CD #compact disc #physical media #new music

Joris Laarman Lab | Microstructures (Aluminum Gradient Chair) | 2014

(via (49) Pinterest • The world’s catalog of ideas)

#chair #aluminum #design #joris laarman lab #joris laarman #Microstructures

Metals become stronger and more ductile with a millisecond electric pulse

A research team has developed a novel method that dramatically enhances the strength and toughness of titanium alloys using an electric current applied for only a few milliseconds. The team was led by Assistant Professor Shaojie Gu from the Magnesium Research Center, Kumamoto University, and included multi-institutional colleagues. In this study, a high-density pulsed electric current (HDPEC) treatment was applied to dual-phase titanium alloys, instantaneously inducing non-equilibrium atomic diffusion and phase transformations, thereby achieving microstructural refinement and multiphase formation. As a result, the toughness of the material was improved by up to 30%. Unlike conventional heat treatments, this method uniquely exploits the electron wind force (a non-thermal effect), in which electrons flowing through the material directly drive atomic motion. Through this mechanism, overall energy consumption was reduced by more than 50%.

Nano 3D metallic parts turn out to be surprisingly strong despite defects

Scientists at Caltech have figured out how to precisely engineer tiny three-dimensional (3D) metallic pieces with nanoscale dimensions. The process can work with any metal or metal alloy and yields components of surprising strength despite having a porous and defect-ridden microstructure, making it potentially useful in a wide range of applications, including medical devices, computer chips, and equipment needed for space missions. The scientists describe their method in a paper published in the journal Nature Communications. The work was completed in the lab of Julia R. Greer, the Ruben F. and Donna Mettler Professor of Materials Science, Mechanics and Medical Engineering at Caltech, and Huajian Gao of Tsinghua University in Beijing.

Machining surface defect - AISI 1215 steel - Machining defects

Defect name: Surface defect Record No.: 690 Type of defect (Internal/Surface): Surface Defect classification: Machining defects Steel name: Steel composition in weight %: 0.06% C, 0.96% Mn, 0.02% Si, 0.05% P, 0.31% S, 0.03% Cr, 0.03% Ni, 0.01% Mo, 0.06% Cu. Note: One cold drawn and machined part exhibiting a linear defect indication on the machined ID surface was submitted to our laboratory for a metallurgical failure analysis service investigation. Our metallurgy experts were requested to determine the source cause of the ID surface defect indication. The material identification is shown in the table below. Based upon the opinion of our failure analysis lab and the performed examinations, it is our opinion the ID surface of the part contained a faint, intermittent, tool mark that was induced during the machining operation. No evidence was observed of a pre-existing internal steel defect or inclusion stringer on the ID surface that could have caused the defect indication. The microstructure as determined by the metal test lab was typical of AISI 1215 steel. SEM examination of the ID surface revealed a faint, intermittent, linear surface defect indication along the .234” diameter ID surface. (See arrows in Figures 1 - 2). Examination at higher magnification showed evidence of disturbed metal, most likely from the machining tool (see Figures 3 – 4). No evidence was observed of a pre-existing internal steel defect or inclusion stringer on the ID surface. Metallographic examination 1. A transverse section removed from the region containing the ID surface defect indication confirmed the presence of a tool mark that was induced during the machining operation. (See arrow in Figures 5 - 6). 2. No evidence was observed of an abnormal inclusion content or any other detrimental internal conditions that could have caused the defect indication. 3. The microstructure consisted of pearlite and grain boundary cementite in a matrix of ferrite, typical of AISI 1215 steel.

Source.

#Materials Science #Science #Metallurgy #Defects #Steel #Microstructures #Magnified View #Machining

A beautiful blue butterfly wing offers a new way to study cancer

Shining polarized light through it and onto tissue can reveal how advanced the disease is

The morpho butterfly is a flying marvel. It flits through the rainforests of Central and South America. With wings that can span 20 centimeters (8 inches), it can be bigger than most human hands. Those wings shimmer with a dazzling blue hue. New data show these butterfly wings could one day become the basis of a new medical tool — one that might help doctors investigate the development and severity of some cancers. Although this butterfly’s wings are blue, that hue is not due to any pigment. Instead, it comes from how light reflects and refracts off tiny microstructures atop those wings. The shimmering color of the wing depends on how light hits it. (Many materials, from rocks to plastic wrap, have this property, called structural color.)