hafnium

简明释义

英[ˈhæfniəm]美[ˈhæfniəm]

n. [化学] 铪（金属元素）

英英释义

单词用法

同义词

反义词

例句

1.So the research of preparation of ceramic scintillators containing hafnium compounds or hafnium has been becoming more and more popular.

因此制备铪化合物或含铪化合物的闪烁陶瓷，是近年的新材料研究热点之一。

2.The hafnium crystal bar was produced by the iodide decomposition method from wast material of processing.

用碘化物热分解法由铪加工残料生产铪晶棒。

3.A method for determination of hafnium in zirconium under Ar-O_2 controlled atmosphere was developed and the conditions of ratio of Ar-O_2, excited current and exposed time were optimized.

研究了在氩氧控制气氛条件下锆中铪的分析条件，对氩氧比、激发电流、曝光时间等实验参数进行了选择。

4.A method for determination of hafnium in zirconium under Ar-O_2 controlled atmosphere was developed and the conditions of ratio of Ar-O_2, excited current and exposed time were optimized.

研究了在氩氧控制气氛条件下锆中铪的分析条件，对氩氧比、激发电流、曝光时间等实验参数进行了选择。

5.Specifically, the present invention provides a metal stack comprising a hafnium-based dielectric;

具体地，本发明提供的金属叠层包括：铪基介质；

6.Gallium nitride is grown by plasma-assisted molecular-beam epitaxy on (111) and (001) silicon substrates using hafnium nitride buffer layers.

氮化镓是增长了等离子体辅助(111)和分子束外延(001)硅衬底上氮化硅缓冲层使用铪。

7.Chemical form of hafnium is perchlorate or nitrate.

铪的化学形态为过氯酸盐或硝酸盐。

8.The technology for separation of zirconium and hafnium is the key to prepare reactor-grade productions of zirconium and hafnium.

锆铪分离技术是生产核级锆和核级铪的核心技术。

9.Researchers are studying the properties of hafnium for potential use in quantum computing.

研究人员正在研究铪的特性，以便在量子计算中潜在应用。

10.The alloy containing hafnium has improved corrosion resistance.

含有铪的合金具有更好的耐腐蚀性。

11.Due to its high melting point, hafnium is often used in aerospace applications.

由于其高熔点，铪常用于航空航天应用。

12.In electronics, hafnium is used in the production of high-k dielectrics.

在电子学中，铪用于生产高介电常数材料。

13.The nuclear reactor used a control rod made of hafnium to regulate the fission process.

核反应堆使用了由铪制成的控制棒来调节裂变过程。

作文

Hafnium, represented by the symbol Hf, is a chemical element with the atomic number 72. It is part of the transition metals in the periodic table and is known for its remarkable properties. This element was discovered in 1923 by Dirk Coster and George de Hevesy, who isolated it from zirconium ores. The name hafnium comes from the Latin word 'Hafnia', which means 'Copenhagen', where it was first identified. Hafnium is a shiny, silvery metal that is highly resistant to corrosion and has a high melting point, making it an essential material in various industrial applications.One of the most significant uses of hafnium is in the production of nuclear reactors. Its excellent neutron-absorbing properties make it ideal for controlling nuclear reactions. In addition, hafnium is used in the manufacturing of high-performance alloys, particularly in aerospace applications, where strength and heat resistance are crucial. For instance, when combined with titanium or other metals, hafnium enhances their performance under extreme conditions, which is vital for aircraft and spacecraft components.Moreover, hafnium plays a critical role in the field of electronics. With the advancement of technology, the demand for smaller and more efficient electronic devices has surged. Hafnium oxide is used as a dielectric material in semiconductor manufacturing. Its high dielectric constant allows for better performance in transistors, which are essential components of modern microchips. As a result, hafnium has become increasingly important in the electronics industry, contributing to the development of faster and more efficient devices.The extraction and processing of hafnium can be quite complex due to its association with zirconium. Both elements are found together in nature, and separating them requires advanced techniques that can be costly and time-consuming. Despite these challenges, the unique properties of hafnium make it a valuable resource that justifies the effort involved in its extraction.In conclusion, hafnium is an essential element with diverse applications in various fields, including nuclear energy, aerospace, and electronics. Its unique characteristics, such as high melting point and corrosion resistance, make it indispensable for modern technology. As industries continue to evolve, the importance of hafnium is likely to grow, paving the way for innovative solutions and advancements in engineering and technology. Understanding the role of hafnium in these applications not only highlights its significance but also emphasizes the need for continued research and development in harnessing its potential for future uses.

铪，用符号Hf表示，是一种原子序数为72的化学元素。它是周期表中的过渡金属，以其显著的特性而闻名。该元素于1923年由迪克·科斯特和乔治·德·赫维西发现，他们从锆矿中分离出它。铪这个名字源自拉丁语“哈夫尼亚”，意为“哥本哈根”，这是它首次被识别的地方。铪是一种闪亮的银色金属，具有很强的抗腐蚀性和高熔点，使其成为各种工业应用的重要材料。铪最重要的用途之一是在核反应堆的生产中。它优异的中子吸收特性使其成为控制核反应的理想材料。此外，铪还用于制造高性能合金，尤其是在航空航天应用中，在这些领域，强度和耐热性至关重要。例如，当与钛或其他金属结合时，铪增强了它们在极端条件下的性能，这对飞机和航天器部件至关重要。此外，铪在电子领域也发挥着关键作用。随着技术的发展，对更小、更高效的电子设备的需求激增。铪氧化物作为半导体制造中的介电材料使用。其高介电常数允许在晶体管中实现更好的性能，而晶体管是现代微芯片的重要组成部分。因此，铪在电子行业中变得越来越重要，有助于开发更快、更高效的设备。由于铪与锆的关联，其提取和加工可能相当复杂。这两种元素在自然界中一起存在，分离它们需要先进的技术，这可能成本高昂且耗时。尽管面临这些挑战，铪独特的性质使其成为一种有价值的资源，值得为其提取所付出的努力。总之，铪是一种在核能、航空航天和电子等多个领域具有多种应用的重要元素。它的独特特性，如高熔点和耐腐蚀性，使其在现代技术中不可或缺。随着各行业的不断发展，铪的重要性可能会进一步增长，为工程和技术的创新解决方案和进步铺平道路。了解铪在这些应用中的作用不仅突显了其重要性，还强调了继续研究和开发以利用其潜力的必要性。