A team of scientists based at Oak Ridge National Laboratory is working on a composite that gives copper wires an enhanced capacity for electrical current, making them more efficient and power dense.
The new material would be used to make Electrical Vehicle traction motors more efficient and power dense.
The researchers want to eliminate some of the challenges that keep Electrical Vehicles from being adopted more widely. Some of these barriers are higher costs of ownership, performance, and the longevity of some of the components, like power electronics and electric motors.
The composite material works with any component that has copper. This includes bus bars, Electric vehicle traction inverters, and charging systems.
ORNL researchers deposited carbon nanotubes on the surface of flat copper substrate to create a composite material that handles current better and whose mechanical properties beat copper. This material is lighter than copper and performs better.
Carbon nanotubes (CNTs) being used to make a copper matrix better is nothing new. CNTs lightweight, strength, and conductivity have made them a favorite material for such attempts before. But previous experiments have created in materials with shorter material strength and poor scalability, or poor performance when longer.
The team at ORNL opted to deposit CNTs using the electro spinning method which is commercially viable and hence more scalable to create fibers using a jet of liquid speeding through an electric field.
With this technique, you enjoy a higher ability to control the orientation and structure of the deposited material, according to ORNL post doctoral researcher Kai Li who is based in the Chemical Sciences Division.
Scientists were this time able to orient the CNTs in one direction for improved electrical flow.
The team of scientists used a technique of vacuum coating called magnetron sputtering during which they add thin copper films on top of copper tapes coated with CNT. The copper samples yielded a super conductive Cu-CNT network when they were annealed inside a vacuum furnace.
They executed this by creating a solid and uniform layer of copper and allowed copper to be diffused into the CNT matrix.
ORNL scientists created a copper-carbon nanotube composite using this technique. The composite measured 10 centimeters in length and 4 cm in width and exhibited excellent material properties.
The material has microstructural properties and was analyzed at the ORNL Center for Nanophase Materials which is a user facility with the US Department of Energy Office of Sciences. The researchers established that the composite had a current capacity that was 14% greater and mechanical properties 20% greater than pure copper.
The Future of Road Safety
In the wake of a tragic accident in Las Vegas that claimed nine lives, the National Transportation Safety Board (NTSB) has reignited a crucial conversation about road safety. The board’s recommendation for all new vehicles to be equipped with Intelligent Speed Assistance (ISA) technology, as reported by NBC News, marks a significant step towards reducing the alarming rate of speeding-related fatalities on U.S. roads.
Understanding ISA Technology
ISA technology is not a novel concept; it has been a subject of discussion and development for years. Unlike traditional speed limiters that impose a flat speed cap, ISA systems use GPS and sign recognition to adapt to the speed limits of different zones, effectively preventing vehicles from exceeding these limits. This technology represents a more dynamic and context-sensitive approach to managing vehicle speed.
The Road Safety Crisis
The urgency of implementing ISA technology is underscored by the harrowing statistics of road fatalities. In the U.S. alone, over 12,000 people lost their lives in speeding-related crashes last year, with hundreds of thousands more injured. Speeding remains a common factor in auto fatalities, making it a critical target for intervention.
The Hurdles to Adoption
Despite the clear benefits, the adoption of ISA technology faces several challenges. The NTSB’s recommendation, while influential, does not carry regulatory or enforcement power. The National Highway Traffic Safety Administration (NHTSA), which oversees vehicle safety standards, has yet to adopt this recommendation. Moreover, the response from auto manufacturers has been tepid. The Alliance for Automotive Innovation, representing most domestic auto manufacturers, emphasizes driver education and awareness over technological interventions.
The Argument for ISA
Advocates for ISA technology argue that traditional approaches to curbing speeding, such as driver education and awareness campaigns, have not been sufficiently effective. David Zipper, a visiting fellow at Harvard University’s Kennedy School, points out that focusing on car design and integrated safety technology could be more impactful. The idea is to make it physically impossible for drivers to exceed speed limits by a significant margin, thereby reducing the risk of high-speed accidents.
The Broader Perspective
While ISA technology is a promising tool, it is not a panacea for road safety. Experts like Isabella Chu, associate director of the data core at the Stanford Center for Population Health Sciences, advocate for a holistic approach. This includes revolutionizing road design to prioritize the safety of all road users, not just vehicles. However, as comprehensive road redesigns are a long-term goal, ISA technology serves as an effective interim solution.
The Path Forward
The path to widespread adoption of ISA technology is fraught with challenges, including regulatory hurdles, industry resistance, and public skepticism. However, the potential benefits in terms of lives saved and injuries prevented are too significant to ignore. As Chu optimistically notes, if the argument for ISA technology is just and its merits are clear, there is hope for eventual adoption.
In conclusion, the NTSB’s recommendation for ISA technology is a crucial step towards enhancing road safety. While there are obstacles to its widespread implementation, the potential to save thousands of lives annually makes it a pursuit worth advocating for. As technology continues to advance, it is imperative that we harness its potential to make our roads safer for everyone.
The 2023 Hyundai Kona: A Comprehensive Review
In the ever-evolving landscape of the automotive industry, the Hyundai Kona has emerged as a formidable player in the small SUV segment. The latest 2023 model has undergone a significant transformation, boasting enhancements that cater to aesthetics, space, safety, and technology. But with a price tag that’s seen a notable increase, does the new Hyundai Kona justify its cost as a small family SUV? Let’s delve into the details.
Design and Aesthetics
The 2023 Hyundai Kona presents a bold statement with its design, reminiscent of futuristic themes akin to Robocop. The vehicle sports giant LED light strips on both the front and rear, complemented by pronounced creases along its sides. The base model, starting at approximately $35,800 drive-away, might raise eyebrows with its use of grey plastic around the wheel arches, intended for protection and a rugged appearance. However, for those seeking a more cohesive look, the $4000 N-Line pack offers body-colored side trims and leather interiors, which could be a worthwhile investment for potential buyers.
Interior and Technology
Upon entering the Kona, one is greeted by a dashboard that exudes modernity. Two 12.3-inch panels merge seamlessly into a curved screen, housing both the infotainment system and a digital driver display. This setup is a strong selling point, alongside convenient features such as a wireless charging pad, wireless CarPlay/Android Auto, and user-friendly climate controls. Despite these advancements, the base model’s interior materials, particularly the seat fabric and cabin plastics, may not live up to everyone’s expectations, feeling somewhat basic for the price point.
Performance and Driving Experience
Under the hood, the Kona retains its 2.0-litre non-turbo four-cylinder petrol engine, with alternative options for a more robust 1.6-litre turbo or a hybrid variant. The standard engine’s performance is adequate, though it may exhibit noise under strain and a CVT auto that can feel jittery at low speeds. Nonetheless, the Kona shines in urban environments with its nimble handling and proves to be a comfortable cruiser on highways, despite the occasional intrusion of aggressive safety alerts and beeps from the lane-keeping system.
Safety and Efficiency
Safety is a paramount aspect of the new Kona, equipped with essential features like blind spot warning and rear traffic alert. However, the entry-level model does miss out on the 3D surround monitor and live blind spot footage found in pricier Premium models. Fuel efficiency is commendable, with real-world figures aligning with Hyundai’s claims. For those prioritizing economy and urban driving, the Kona Hybrid, offering 3.9L/100km, might justify the additional $4000 investment.
Family and Practicality
The Kona’s back seats are a pleasant surprise, offering ample head, leg, and toe room, along with a central armrest, air vents, USB-C ports, and a mobile phone slot. Despite the steep initial cost and the $1995 price tag for five years of servicing, the Kona stands out as one of the top contenders in the small SUV market.
The 2023 Hyundai Kona may not be revolutionary, but it maintains its status as a top choice in its class. While some may desire a more refined cabin and a turbo engine for the price, the SUV’s comprehensive features and distinctive style offer significant compensation. The Kona’s dramatic LED light bars, roominess, and safety credentials make it a viable option for families, albeit with a wish for a quieter cabin free from the persistent safety beeps.
In conclusion, the new Hyundai Kona, priced around $36,000 drive-away, presents a package that balances innovation with practicality. Its five-year/unlimited km warranty and comprehensive safety suite, including seven airbags and advanced driver assistance systems, make it a compelling choice for those in the market for a small SUV. With a fuel consumption of 6.6L/100km and a 407L boot capacity, the Kona is well-suited for both daily commutes and family adventures. As the automotive world continues to evolve, the Hyundai Kona seems poised to keep pace, offering a glimpse into the future of family-friendly transportation.
Tesla’s Technological Revolution: More Than Just Cars
In the fast-paced world of automotive technology, few names resonate as loudly as Tesla. Known for its electric vehicles (EVs), the company has been a trailblazer in integrating cutting-edge technology into its cars. But Tesla’s ambitions go beyond just making electric cars; the company aims to revolutionize vehicle production as a whole. A recent article on Yahoo Autos described Tesla’s ongoing advancements as “an enabler on steroids,” emphasizing the transformative potential these innovations hold for the automotive industry.
While the buzz around Tesla’s technological advancements is palpable, it’s essential to understand that innovation in the automotive sector is no small feat. The industry is laden with regulatory hurdles, safety standards, and consumer expectations, making any significant change a “very challenging task,” as noted by experts. According to the National Highway Traffic Safety Administration, vehicle manufacturers must adhere to a plethora of federal motor vehicle safety standards, which can often slow down the pace of innovation.
Tesla’s approach to these challenges is unique because, at its core, it is a technology company. Elon Musk has often emphasized that Tesla’s mission is to accelerate the world’s transition to sustainable energy. This mission is not just about electric cars but encompasses a broader range of technologies, including battery storage and solar energy solutions. In fact, Tesla’s Gigafactory in Nevada is one of the largest battery manufacturing facilities in the world, aiming to produce enough batteries to power 500,000 vehicles annually.
Tesla’s technological advancements have a multiplier effect on the automotive industry. The company’s open-source philosophy, where it has made many of its electric vehicle patents available to the public, encourages other manufacturers to adopt and improve upon Tesla’s technologies. This approach has the potential to expedite the industry’s overall transition to sustainable energy solutions. Industry associations like the Alliance for Automotive Innovation have lauded such collaborative efforts as a way to accelerate technological advancements across the board.
As Tesla continues to innovate, the ripple effects are felt throughout the automotive and technology sectors. The company’s focus on software, exemplified by its Autopilot and Full Self-Driving features, is pushing the boundaries of what is possible in vehicle automation. According to a report by the U.S. Department of Transportation, automated vehicles have the potential to significantly reduce traffic accidents, most of which are caused by human error.
Tesla’s relentless pursuit of technological innovation is not just reshaping its own future but is setting the stage for a broader transformation in the automotive industry. As the lines between automotive and technology companies continue to blur, Tesla stands as a beacon, illuminating the path toward a more sustainable and efficient future for transportation.
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