Workflow
材料科学
icon
Search documents
折纸结构陶瓷“弯而不断”
Ke Ji Ri Bao· 2025-04-29 23:56
Core Insights - A team from the University of Houston has developed a new type of ceramic structure that combines ancient origami design principles with modern materials science, showcasing unprecedented flexibility and strength under pressure [1][2] - This innovative technology opens new pathways for lightweight, high-strength materials, with potential applications in fields requiring high impact resistance, such as medical prosthetics, aerospace, and robotics [1][2] Summary by Sections Traditional Ceramic Limitations - Traditional ceramics are widely used due to their high hardness and heat resistance, but their inherent brittleness limits their use in dynamic or high-stress environments [1] - Conventional ceramics are prone to cracking or shattering under external pressure, making them unsuitable for applications requiring deformation adaptability [1] Innovative Design and Manufacturing - The research team utilized a classic origami pattern known as Miura-ori, employing 3D printing technology to create a ceramic framework with a complex folding structure [1] - Miura-ori allows flat materials to be compressed into smaller spaces while maintaining a flat characteristic, commonly used in engineering and space deployment systems [1] - A layer of stretchable and biocompatible polymer was applied to the surface of the ceramic structure, endowing it with new mechanical properties [1] Experimental Results and Future Applications - Experimental results indicate that the polymer-coated ceramic structure exhibits excellent compressive strength and elastic recovery when pressure is applied from different directions [2] - In contrast, traditional ceramics without the coating quickly crack or break under the same conditions [2] - The research highlights origami as not only a visual art form but also a functional design tool that offers new solutions to material challenges in biomedical and engineering fields [2] - This study demonstrates how clever structural design can introduce flexible and tough new characteristics into inherently brittle materials, paving the way for innovations in medical devices, smart robotics, and aerospace materials [2]
比利时媒体:对华合作是欧洲电池产业出路;万华化学2024年净利润同比下降 | 新能源早参
Mei Ri Jing Ji Xin Wen· 2025-03-17 23:48
Group 1: European Battery Industry - The Belgian media highlights that cooperation with China is seen as a way forward for the European battery industry, reflecting a consensus that if one cannot defeat an opponent, one should collaborate with them [1] - The article emphasizes that Europe is looking to learn from China's past collaborations with European car manufacturers to accumulate technology, particularly in the battery sector [1] - This cooperation model underscores the importance of international collaboration in driving technological innovation and industry development, presenting new opportunities and challenges for both the European and Chinese electric vehicle sectors [1] Group 2: Wanhua Chemical - Wanhua Chemical announced a projected net profit of 13 billion yuan for 2024, representing a year-on-year decline of 22.49%, despite a revenue increase of 3.83% to 182.07 billion yuan [2] - The decline in net profit is attributed to fluctuations in market prices and raw material costs, increased research and development expenses, and asset impairment provisions for certain investment projects [2] - The company's total assets grew by 15.92% to 293.33 billion yuan, indicating an expansion in asset scale, while investors are advised to monitor how the company addresses market volatility and cost pressures [2] Group 3: Dao Technology - Dao Technology is actively advancing the application of carbon nanotube materials in the robotics sector and has initiated collaborations with leading robotics companies [3] - The company is engaged in comprehensive research and development testing and market promotion for carbon nanotube materials, indicating significant progress in innovative applications [3] - Dao Technology's product range includes graphene conductive agents, carbon nanotube conductive agents, and other materials, showcasing its diversified approach in materials science [3]