Cool Tools: World's darkest spray paint
A whole range of products can now take advantage of the world's blackest coating, Vantablack, thanks to the development of a new spray version called Vantablack S-VIS. It is easily applied at large scale to virtually any surface. Vantablack's carbon nanotube matrix structure absorbs virtually all (99.8 percent) incident light, enabling precision optical systems to be optimized. The material's developer, UK-based Surrey NanoSystems, has mimicked the performance of its original Vantablack with this new version that can be sprayed onto objects, rather than deposited using a chemical vapor deposition (CVD) process.
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Expanded TPE portfolio for soft-touch surfaces
The new FG/SF THERMOLAST K series compounds from KRAIBURG TPE provide design flexibility, cost-effective processability, and flawless surface quality. They comply with all established automotive standards set by OEMs with regard to emission and odor, and they also provide permanent UV stability. The flexible materials are available in hardness grades ranging between 50 and 80 Shore A. They offer excellent adhesion to polypropylene in two-component applications and provide attractive, satin-finished surfaces with a pleasant soft-touch feel and permanent abrasion resistance.
Know your materials: Nylon 12CF
FDM Nylon 12CF is a chopped carbon fiber-filled polyamide 12 material that is available for 3D printing on compatible Stratasys Fortus production systems. The material is 35 percent carbon fiber by weight and has a high strength-to-weight ratio with a tensile strength on par with high-performance FDM material. The 3D design and rapid prototyping specialists at TriMech run through what you need to know about this exciting and versatile material.
Read the TriMech blog.
Cool Tools: Desktop full-color 3D printer
The all-new XRIZE desktop industrial 3D printer enables users to manufacture functional polymer and composite parts in full color. And since RIZE's intelligent and innovative solutions focus on the user as much as the machine, XRIZE is easy to use, safe, and enables markup to provide much-desired IP security, traceability, and branding. This machine requires minimal pre-processing, post-processing, and material management. It uses a patented Augmented Deposition process by extruding an engineering-grade thermoplastic and simultaneously jetting C-M-Y-K inks through industrial printheads to achieve the full-color part. Build volume is 12 x 8 x 8 in. (310 x 200 x 200 mm). New carbon fiber materials also available.
New food-grade high-performance PEEK polymers
To help OEMs meet the stringent regulatory and quality demands affecting the food equipment industry, Victrex is introducing a dedicated PEEK food-grade portfolio. Compared to metal components, the new VICTREX FG family of high-performing thermoplastics offers additional benefits in terms of cost effectiveness, productivity, and performance for OEMs -- and the neutral taste expected by consumers. In addition, with the adoption of Industry 4.0 technology, VICTREX PEEK can offer food and beverage manufacturers the opportunity to optimize efficiency and reduce production costs, when compared to the use of metals.
How specialized coatings can make mechanical parts harder for extreme industrial applications
Although bearings, gears, rollers, and other precision components are generally made of hardened steel or metal alloys, those used in high-load applications still can fail due to excessive wear, surface fatigue, pitting, galling, and corrosion. To address this problem, product engineers and component manufacturers often turn to specialized PVD (physical vapor deposition) coatings that can further harden the surface of these parts. Oerlikon Balzers provides solid solutions.
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New carbon fiber material for SAAM additive systems from Cincinnati Inc.
Cincinnati Inc. (CI) has released a new carbon fiber resin material for its SAAM (Small Area Additive Manufacturing) fused filament fabrication 3D-printing system. The new material is impact resistant, lightweight, and has a very high strength-to-weight ratio. Carbon fiber reinforcement makes the material stiff, durable, and very low warping -- and advanced inter-layer adhesion results in accurate, quality parts with good dimensions. The material's superior surface finish makes it perfect for custom tooling applications, as well as assembly, CMM, welding, and CNC fixtures.
Learn more about the carbon fiber material.
Learn more about Small Area Additive Manufacturing system.
World's first particle foam based on polyethersulfone
After two years of intensive research, BASF is now able to present prototypes of the world's first particle foam based on polyethersulfone (PESU). The foam is characterized by its unique combination of properties: high-temperature resistance, inherent flame retardancy, and extreme light weight coupled with great stiffness and strength. It is therefore particularly well suited for complex-shaped components in cars, airplanes, and trains.
New hybrid nylon TPEs are tough, flexible, and more
Nylon Corporation of America has launched an extended product family of nylon (polyamide) -based thermoplastic elastomers (TPEs), also known as polyether-block-amides (PEBA), for a range of applications in the automotive, sporting goods, personal electronics, composite, and specialty films markets. These materials are block copolymers of nylon segments and polyether segments. The nylon block is the hard segment and the polyether block is the soft, flexible segment. NY-FLEX grades are thus hybrid materials, offering a unique combination of rubber-like elastomeric properties and thermoplastic-like processing capabilities. By varying the type and the ratio of these two blocks, a wide range of NY-FLEX grades can be offered.
High-hardness 3D-printing materials
If your vision of the future is 3D printing your own high-hardness steel bearings right at your location on demand, your wish has been granted. A new development from the NanoSteel Company supports the market need for on-demand, on-site wear parts while addressing the current challenges in 3D printing of high-hardness parts. NanoSteel's powder alloy overcomes one of the major hurdles to achieving a high-hardness metallic part through additive manufacturing: the tendency to develop cracks during part builds. The company worked with a global process development partner to optimize processing of a proprietary NanoSteel alloy with a high-volume fraction of borocarbide phases. This successfully produced a fully dense (99.9 percent) crack-free part with hardness values over 1000 HV, wear resistance comparable to conventionally manufactured M2 tool steels, and a uniform microstructure.
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New advanced titanium alloy for high-temperature aerospace
Arconic has announced the commercial availability of an advanced titanium alloy called ARCONIC-THOR that is designed for higher temperature applications in next-gen aero engines and adjacent structures. This patented material is nearly 50 percent lighter than incumbent nickel-based superalloys. The proprietary formulation also demonstrates three times improved oxidation resistance compared to existing high-temp titanium alloys. Arconic has completed successful development projects of ARCONIC-THOR with the U.S. Air Force Research Laboratory, Boeing, and Honeywell. A new project is in the works with Lockheed Martin.
Learn more about the ARCONIC-THOR alloy.
Read about Arconic's agreement with Lockheed Martin.
Odorless thermal insulation material for automotive
Interface Performance Materials introduces TI650 and TI1K innovative thermal insulation materials for automotive and heavy-duty vehicle heat shield applications. TI650 and TI1K are the first odorless and smokeless materials specifically formulated for three-layer heat shields in the automotive, medium-, and heavy-duty vehicle applications. These non-toxic materials withstand temps up to 1,000 C (1,832 F), are malleable, and are resistant to cracking when molded into a layered heat shield. Their low-density makeup makes them the ideal substrates for lightweight initiatives by OEMs and fabricators. A highly inorganic material, TI1K is also unique in its ability to meet the ASTM E136 flammability test standard with no detectable smoke.
Get 'Digital Manufacturing for Dummies' book gratis
Proto Labs has put together a comprehensive guide to the major 3D-printing, CNC machining, and injection-molding technologies that are frequently used in digital manufacturing. The book helps readers to compare processes, explore material options, and see how digital manufacturing can fit into every stage of the product life cycle.
Get your copy on the house.
Precision ceramic and glass microcomponents
Goodfellow, a favorite materials provider for Designfax readers, also supplies a wide variety of ceramic and glass microcomponents, both standard items and items precision-machined to customer specifications. Examples include: ultra-thin glass microsheet for use as transparent substrates and electrical insulators; precision spheres for use as precision spacers and optical components; micro optics such as prisms, lenses, and windows; injection-molded ceramic microcomponents for surgical equipment and fiber-optic applications; polished sapphire bearings and sub-mm bore nozzles; and single- and multi-bore capillary tubing. Other items are available upon request.
Smith Metal Products adds Titanium Metal Injection Molding capabilities
Smith Metal Products has added Titanium Metal Injection Molding (TiMIM) capabilities to its MIM portfolio of materials that include stainless steels, alloys, and ceramics. TiMIM involves mixing powdered Titanium metal with a binder material to compose a feedstock capable of being handled by injection molding equipment. Metal injection molding allows complex Titanium parts to be shaped with precision in a single operation and in high volume as compared to traditional Titanium machined metal components.
Scientists discover a link between superconductivity and the periodic table
Scientists from Moscow Institute of Physics and Technology and Skoltech have demonstrated the high-temperature superconductivity of actinium hydrides and discovered a general principle for calculating the superconductivity of hydrides based on the periodic table alone. The results of their study were published in March in The Journal of Physical Chemistry Letters.
High-temperature superconductivity is a phenomenon of zero electrical resistance in certain materials at temperatures above -196 C (the temperature of liquid nitrogen) that physicists, chemists, and materials scientists worldwide have been intensely researching for decades, as room-temperature superconductors open up vast prospects for the power industry, transport, and other technology-driven sectors.
Scientists in Moscow propose that p0 and d1 metals with low-lying empty orbitals tend to form phonon-mediated high-temperature superconducting (HTSC) metal polyhydrides. The correlation to the pattern in the periodic table may help identify promising superconducting materials more quickly. [Credit: Dmitrii V. Semenok et al./The Journal of Physical Chemistry Letters]
Currently, the record holder in high-temperature superconductivity is hydrogen sulfide (H3S), which functions as a superconductor at 1.5 million atmospheres and temperatures down to -70 C. Such pressure levels can only be attained in a lab environment, not in real life, and the temperature is way below room temperature, so the search continues for new superconductors. Perhaps an even higher-temperature superconductivity can be attained in metal-hydrogen compounds. Yet the link between chemical composition and superconductivity was unclear, leaving scientists to puzzle it all out by trial and error.
A group of chemists led by Artem R. Oganov, professor at Moscow Institute of Physics and Technology and Skoltech, recently discovered that certain elements capable of forming superconducting compounds are arranged in a specific pattern in the periodic table.
They theorized that high-temperature superconductivity develops in substances containing metal atoms that come close to populating a new electronic subshell. Metal atoms inside the crystal are thought to become highly sensitive to the positions of the neighboring atoms, which results in strong electron-phonon interaction -- the underlying effect of conventional superconductivity.
Based on this assumption and looking at the periodic table, the scientists supposed that high-temperature superconductivity could occur in actinium hydrides -- substances that fit the desired subshell pattern. Their supposition was verified and confirmed: superconductivity was predicted for AcH16 at temperatures of -69 to -22 C at 1.5 million atmospheres.
"The very idea of a connection between superconductivity and the periodic table was first put forward by Dmitry Semenok, a student at my lab," said Oganov. The principle he discovered is very simple, and it is really amazing that no one had hit upon it before."
Source: Moscow Institute of Physics and Technology
Published April 2018
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