来源：中国科学报 经过近10年的持续攻关，研究团队采用单晶石墨作为前驱体，在金刚石压砧内的准静水高压（2亿兆 帕）、高温（1400摄氏度）条件下，成功合成百微米级大小、高度有序的六方金刚石三重孪晶样品。 样品合成后，西安光机所研究员罗端团队依托超高时空分辨表征技术，通过原子分辨透射电镜及电子能 量损失谱测量等手段，对样品进行深度剖析，发现样品的维氏硬度高达110吉帕，性能可媲美天然立方 金刚石，确证其为独立、均一的"超级钻石"。 "目前，我们制备的样品已达到工业制造领域要求，属超级切削和耐磨材料，可用于制造'金刚钻'，能 揽更多'瓷器活'。"罗端说。（见习记者李媛） 相关论文信息： https://doi.org/10.1038/s41586-025-09343-x 中国科学院西安光学精密机械研究所（以下简称西安光机所）、北京高压科学研究中心联合团队在国际 上首次人工合成百微米-毫米级、结构有序、高纯度的六方金刚石块体样品，并结合多种表征手段，从 不同角度全面证明了六方金刚石纯相样品的成功合成。近日，该研究成果发表于《自然》。这一成果彻 底终结了长期以来关于六方金刚石宏观存在性的争议，使曾经只能在宇宙陨石中偶 ...

Market News - US stock indices collectively declined, with the Dow Jones down 0.74%, Nasdaq down 0.03%, and S&P 500 down 0.37%. Notable tech stocks had mixed performances, with Meta rising over 11% and Microsoft nearly 4%, while Arm fell over 13% and Tesla over 3% [1] - International precious metal futures generally fell, with COMEX gold futures down 0.31% at $3342.30 per ounce and COMEX silver futures down 2.51% at $36.79 per ounce. International oil prices also decreased, with WTI crude oil down 0.91% at $69.36 per barrel and Brent crude down 0.86% at $71.85 per barrel [1] - Major European stock indices closed lower, with Germany's DAX down 0.81%, France's CAC40 down 1.14%, and the UK's FTSE 100 down 0.05% [1] Industry Insights - The State Council approved the "Artificial Intelligence +" action plan, aiming to promote the large-scale and commercial application of AI across various sectors. The release of the GLM-4.5 model indicates advancements in AI models, with expectations for significant growth in computational demand by 2025 [2] - The National Healthcare Security Administration introduced a pricing mechanism for newly listed drugs and medical technologies, including specific pricing for brain-computer interface procedures. This is expected to accelerate the clinical application of brain-computer interface technologies, with the global market projected to reach $40 billion by 2030 and $145 billion by 2040 [3] - A research team successfully converted high-quality graphite single crystal precursors into hexagonal diamond, which exhibits mechanical properties comparable to cubic diamond. This breakthrough could enhance the application of diamond in various industries, including aerospace and medical devices [4][5] Stock Movements - Wanhu Chemical announced that a shareholder plans to reduce its stake by up to 0.54% of the total share capital through centralized bidding and/or block trading [6] - Haohan Deep announced a shareholder's plan to reduce its holdings by up to 2.17% of the total share capital due to personal funding needs [6] - Tongda Co. announced a shareholder's plan to reduce its stake by up to 3% of the total share capital [6] - Heyuan Gas announced that a major shareholder intends to reduce its holdings by up to 1% of the total share capital through centralized bidding and block trading [6]