Year: 2024

Researchers at the Korea Institute of Science and Technology (KIST) have achieved a significant milestone by developing a thermally refractory material capable of maintaining its optical properties under extreme conditions, including temperatures of up to 1,000 degrees Celsius and intense ultraviolet illumination. This breakthrough material holds promising applications in various fields, from aerospace and space technology to thermal photovoltaic (TPV) systems.

Thermal radiation, the electromagnetic radiation emitted by matter with temperatures above absolute zero, has long been explored as a potential energy source. Harnessing this radiation can be particularly useful in repurposing heat generated by facilities such as thermal power plants and industrial sites for heating, cooling, and energy production. The focus of this research has been to identify materials that can withstand extreme environments, expanding the scope of thermal radiation applications.

Researchers have tackled the safety concerns surrounding lithium batteries by developing a groundbreaking solution that integrates fire extinguishing capabilities directly into the battery cells. While lithium batteries have revolutionized technology, powering devices like smartphones, electric cars, and laptops, their potential for catastrophic fires has raised alarm. The surge in incidents, including over 200 recorded in New York City alone in 2022, highlights the need for enhanced safety measures.

Traditional lithium batteries, when mishandled or damaged, can lead to fiery explosions with devastating consequences. Recognizing this issue, a team from Clemson University and Hunan University has introduced a new rechargeable lithium battery design. The innovation involves replacing the standard, highly combustible electrolyte fluid with a modified version of 3M’s Novec 7300 non-flammable heat transfer fluid, commonly found in fire extinguishers.

In a groundbreaking initiative, sugarcane bagasse, the fibrous stalk waste left after sugarcane crops are harvested, has become the core component of an innovative eco-friendly building material named Sugarcrete. Recently honored with an international Climate Positive Award, Sugarcrete is the result of a collaborative effort between the University of East London and Tate & Lyle Sugars, a British firm.

The manufacturing process involves combining sugarcane bagasse with proprietary mineral-based binders, compressing the mixture, and allowing it to cure. The outcome is a series of high-strength blocks that serve as a sustainable alternative to traditional clay or concrete bricks. Sugarcrete boasts several advantages over its counterparts, such as a faster curing time (one week compared to four weeks for concrete), a significantly reduced weight (one quarter to one fifth of the weight per block), and a more cost-effective production process.

Researchers at Daegu Gyeongbuk Institute of Science and Technology (DGIST) in South Korea, in collaboration with the Korea Advanced Institute of Science and Technology (KAIST), have achieved a significant breakthrough in the integration of microelectromechanical systems (MEMS) into programmable photonic integrated circuits (PPICs). The study, published in the journal Nature Photonics, marks a major advancement in the field.

PPICs are designed to process light waves for computation, sensing, and signaling, offering programmable capabilities to meet diverse requirements. Sangyoon Han from the DGIST team highlights the potential of programmable photonic processors to outperform conventional supercomputers, providing faster, more efficient, and massively parallel computing. The use of light instead of electric current not only increases speed but also reduces power consumption and the size of PPICs, opening up possibilities for advancements in artificial intelligence, neural networks, quantum computing, and communications.

China Aerospace Science and Industry Corporation (CASIC), the country’s largest missile manufacturer, has made significant strides in hyperloop technology, claiming to have achieved the fastest speed ever for a superconducting maglev vehicle. The tests, conducted in a low-vacuum tube measuring just 2 km, showcased speeds exceeding 623 km/h (387 mph).

Hyperloop technology, often met with skepticism, aims to propel maglev trains at high speeds through vacuum-sealed tubes, minimizing air drag and friction for efficient travel. Despite challenges, CASIC’s innovative approach integrates a piezoelectric framework with the growth-promoting properties of hydroxyapatite (HAp), a mineral found in bones.