With the rapid development of high-end manufacturing, particularly industrial upgrading in advanced sectors including aerospace, new energy vehicles, electronics and semiconductors, and composite materials, industrial CT non-destructive testing has become a critical technical method for product quality control, failure analysis, process optimization and new material research and development. Conventional two-dimensional imaging and destructive testing are increasingly inadequate amid the trends toward higher precision, in-situ characterization and quantitative analysis, failing to meet the dual demands of modern manufacturing for internal structure visualization and real service condition reconstruction.

During processing, storage and service life, polymer materials are inevitably subjected to synergistic effects of environmental factors such as heat, oxygen and light, which trigger irreversible chemical changes in their molecular structures and functional groups. Such degradation at the microscopic molecular level usually leads to deterioration of macroscopic physical and mechanical properties, eventually resulting in material failure. Polycarbonate (PC), a thermoplastic engineering plastic with outstanding comprehensive properties, has been widely applied in high-end fields including construction materials, automotive industry, aerospace, electronic and electrical products, as well as medical devices. Nevertheless, when exposed to high-temperature thermo-oxidative service environments, PC tends to undergo multiscale reactions such as chain scission, oxidative degradation and bisphenol A (BPA) migration. These phenomena cause rapid yellowing and embrittlement of the material, thereby limiting its service life.

In recent years, the explosive growth of AI computing power and the continuous advancement of digital infrastructure construction in China have turned data centers into high-energy-consumption and high-heat-density operating scenarios. The power consumption of a single AI training chip has jumped from 300 W to 700 W or even 1000 W, making traditional air cooling insufficient to meet cooling demands. Liquid cooling is evolving into an essential core technology for energy conservation and carbon reduction in intelligent computing centers. According to the 2025 Full-Scale Research Report on the Liquid Cooling Industry of Intelligent Computing Centers recently released by the China Academy of Information and Communications Technology (CAICT), China’s liquid cooling market for intelligent computing centers is projected to reach 130 billion RMB by 2029. The critical question remains: Is your data center cooling fluid fully compliant with relevant standards? Can it sustain long-term reliable

As the Dragon Boat Festival approaches, sales of zongzi in flexible packaging enter their peak season. To retain fresh flavor and extend shelf life, the modern food industry relies heavily on high-performance packaging systems, with food-contact-grade polyamide (PA, nylon) serving as a core material therein. Nevertheless, under complex service conditions including high-temperature retorting, grease impregnation and long-term service, the risk of migration of chemical substances inside the material rises significantly. Faced with increasingly stringent global regulations, does your product possess solid qualifications to pass safety compliance inspections?

For all materials researchers and R&D practitioners, do you often find yourself confused by test data obtained from high-pressure capillary rheometers during routine extrusion and injection molding development? In fact, with technological upgrades, capillary rheometers are far from outdated devices merely used to plot viscosity curves!

In the design of modern electric vehicles and high-energy energy storage systems, the operating temperature and temperature uniformity of lithium-ion batteries are the most critical physical parameters determining their electrochemical performance, cycle life and system safety. Studies indicate that the optimal operating temperature range for lithium-ion batteries is 15°C to 35°C. According to Arrhenius kinetics, the growth rate of the solid electrolyte interphase (SEI) film doubles with every 10 °C rise in battery operating temperature. This means that if a battery pack operates long-term above 35°C instead of at 25°C, its calendar life will decrease by half. Conversely, charging under sub-zero (below 0°C) conditions drastically slows the intercalation rate of lithium ions in the graphite anode, readily triggering lithium metal deposition (lithium plating) on the anode surface. The formed conductive lithium dendrites lead to irreversible capacity degradation, and may even pierce the separator to induce internal short circuits.

In the research, development and manufacturing of new energy batteries, researchers generally focus on electrochemical indicators such as specific capacity, Coulombic efficiency and ionic conductivity. Nevertheless, an overlooked industry consensus has become a bottleneck restricting further improvements in battery service life and safety: a battery is not merely a complex electrochemical system, but also a mechanical system featuring intense multi-field coupling of mechanics, electricity and chemistry.

With the rapid growth of artificial intelligence (AI) workloads and continuous increase in server density, traditional air cooling solutions are increasingly unable to meet requirements in terms of performance and energy efficiency. Liquid cooling systems are specifically designed to address the high heat density commonly found in AI and high-performance computing racks. Furthermore, liquid cooling serves as a more energy-efficient alternative, enabling operators to cut cooling-related energy consumption by more than 40% while achieving ultra-low Power Usage Effectiveness (PUE).

As battery electric vehicle technologies evolve toward 800V high-voltage platforms and ultra-fast charging, the operating conditions for vehicle thermal management systems are becoming increasingly harsh. Efficient heat dissipation for power batteries, drive motors and electronic control systems relies heavily on the structural integrity of liquid cooling plates and cooling pipeline systems.

With the commercialization of fifth-generation (5G) millimeter-wave (mmWave) mobile communication technology and the research and layout of sixth-generation (6G) terahertz (THz) communication technology, the modern electronic information industry has put forward more stringent physical property requirements for substrates used in radio frequency (RF) front-end devices, Antenna-in-Package (AiP) modules and High-Density Interconnect (HDI) printed circuit boards. At extremely high operating frequencies, the transmission loss of electromagnetic wave signals increases significantly. Apart from the skin effect induced by the surface roughness of metal conductors, signal attenuation is predominantly limited by the dielectric loss of the substrate material.

Against the backdrop of explosive growth in the new energy vehicle industry, power batteries serve not only as the "heart" of vehicles but also as the decisive core governing driving range and operational safety. What many may not realize is how many rigorous critical tests a qualified battery must pass from raw powder materials to final vehicle assembly. To guarantee zero hidden risks for every shipped battery, the industry has long established an extremely stringent full-life-cycle quality control system. In this article, we will dive deep into the core details behind this comprehensive quality safeguard framework.

With the leap-forward development of non-fossil energy exploitation and energy storage technologies, new energy vehicles and high-density data centers have set stringent requirements on the energy density of energy storage devices. During charge-discharge cycles, the increased internal energy density of power batteries is usually accompanied by massive heat generation. If heat cannot be dissipated in a timely manner, accumulated local hotspots will not only accelerate battery aging, but also readily trigger thermal runaway under extreme operating conditions, resulting in catastrophic consequences such as battery combustion and explosion. Accordingly, developing an efficient and safe thermal management system is a core task for breaking through industrial bottlenecks.