alumina

简明释义

英[əˈluːmɪnə]美[əˈluːmɪnə]

n. [无化] 氧化铝；矾土

英英释义

单词用法

同义词

反义词

例句

1.Results show that the modified cement with good durability, small expansion and low alkality can be made by use of gypsum and zeolite modifying alumina cement.

结果表明：以石膏和沸石对高铝水泥改性，可配制出耐久性良好、具有微膨胀性的低碱度改性水泥。

2.The effect of viscosity and dipping time on membrane, and that of calcining temperature and time on the structural properties of alumina membrane are also discussed.

还研究了膜厚与浸渍时间和粘度等的关系以及对比不同焙烧温度和时间对氧化铝膜的结构影响。

3.The experiment of burying TX1 type high effective oil absorbent in the desulfurizing agent is described and the oil absorbing effect is compared with that of coke and alumina ball.

介绍了TX1型高效吸油剂在脱硫剂中的埋包实验情况，并与工业焦炭和催化剂载体（氧化铝球）的吸油效果进行了比较。

4.The preparation of aluminium nitride powder by means of direct nitridation under pressurized nitrogen atmosphere and carbothermal nitridation of alumina is studied.

对在加压氮气中金属铝粉的直接氮化和氧化铝粉的碳热还原氮化法制备氮化铝粉末进行了研究。

5.The article analyses relation between cell resistance and alumina concentration and discusses the method for controlling alumina concentration in aluminium smelting cell.

分析了槽电阻与氧化铝浓度的之间的关系，对铝电解槽氧化铝浓度的控制方法进行了探讨。

6.The researchers worked with sodium beta-alumina in its liquid form, which enabled them to spread it easily onto a surface in precisely the pattern required for a printed circuit.

研究人员可以在钠β-氧化铝处于液态时对它进行操作, 这样就很容易将它精确地涂抹在物体表面, 而这正是印刷电路板所要求的工艺模式.

7.In the ceramic industry, alumina is used to create high-strength materials for various applications.

在陶瓷行业中，铝土矿用于制造各种应用的高强度材料。

8.The alumina content in the ore determines the efficiency of the aluminum extraction process.

矿石中的铝土矿含量决定了铝提取过程的效率。

9.The use of alumina in abrasives helps improve the durability of grinding tools.

在磨料中使用铝土矿有助于提高磨具的耐用性。

10.The production of aluminum begins with the extraction of alumina, which is derived from bauxite.

铝的生产始于提取铝土矿，它是从铝土矿中提炼出来的。

11.Researchers are exploring new methods to reduce the energy required for converting alumina into aluminum.

研究人员正在探索减少将铝土矿转化为铝所需能量的新方法。

作文

Alumina, known scientifically as aluminum oxide, is a crucial compound in various industries, particularly in the production of aluminum metal. This white or nearly colorless crystalline substance plays a significant role in both the manufacturing process and the applications of aluminum products. The importance of alumina (铝土矿) cannot be overstated; it serves as the primary raw material from which aluminum is extracted through the Bayer process. In this process, bauxite ore is refined to produce alumina (铝土矿), which is then subjected to electrolysis to yield pure aluminum. The versatility of alumina (铝土矿) extends beyond aluminum production. It is also used in the manufacturing of ceramics, glass, and various chemical processes. In ceramics, for instance, alumina (铝土矿) is valued for its hardness and resistance to wear, making it an ideal material for high-performance applications. Furthermore, its thermal stability and electrical insulation properties make alumina (铝土矿) a preferred choice in electronic components and insulators.In addition to its industrial applications, alumina (铝土矿) plays a vital role in environmental sustainability. The recycling of aluminum scrap involves re-melting the metal, which can be done without the need for additional alumina (铝土矿). This not only conserves natural resources but also significantly reduces energy consumption compared to primary aluminum production. The recycling process emphasizes the importance of alumina (铝土矿) in promoting a circular economy, where materials are reused and waste is minimized.Research and development efforts continue to explore new applications for alumina (铝土矿). For example, advancements in nanotechnology have led to the creation of nano-sized alumina (铝土矿) particles, which exhibit unique properties that can enhance the performance of various materials. These innovations open up possibilities for improved catalysts, coatings, and composite materials.Moreover, the global demand for alumina (铝土矿) is expected to rise as industries seek lightweight and durable materials. The automotive and aerospace sectors, in particular, are increasingly utilizing aluminum components to reduce weight and improve fuel efficiency. As a result, the production and processing of alumina (铝土矿) will remain a critical area of focus in the coming years.In conclusion, alumina (铝土矿) is more than just a simple chemical compound; it is a cornerstone of modern industry and technology. Its applications range from aluminum production to advanced materials science, highlighting its versatility and importance. As we move towards a more sustainable future, the role of alumina (铝土矿) in recycling and resource conservation will become increasingly significant. Understanding the properties and uses of alumina (铝土矿) is essential for anyone involved in materials science, engineering, or environmental studies. The continued exploration of this compound will undoubtedly lead to further innovations and applications that benefit society as a whole.

铝土矿，科学上称为氧化铝，是各个行业中的重要化合物，特别是在铝金属的生产中。这个白色或几乎无色的结晶物质在铝产品的制造过程和应用中起着重要的作用。铝土矿（铝土矿）的重要性不容小觑；它是通过拜耳法提取铝的主要原料。在这个过程中，铝土矿被精炼以生产铝土矿（铝土矿），然后经过电解得到纯铝。铝土矿（铝土矿）的多功能性不仅限于铝的生产。它还用于陶瓷、玻璃和各种化学过程的制造。例如，在陶瓷中，铝土矿（铝土矿）因其硬度和耐磨性而受到重视，使其成为高性能应用的理想材料。此外，由于其热稳定性和电绝缘特性，铝土矿（铝土矿）在电子元件和绝缘体中也成为首选材料。除了工业应用外，铝土矿（铝土矿）在环境可持续性方面也发挥着重要作用。铝废料的回收涉及到金属的再熔化，这可以在不需要额外铝土矿（铝土矿）的情况下进行。这不仅节约了自然资源，还显著降低了与初级铝生产相比的能耗。回收过程强调了铝土矿（铝土矿）在促进循环经济中的重要性，在这种经济中，材料被重复使用，废物被最小化。研究和开发工作继续探索铝土矿（铝土矿）的新应用。例如，纳米技术的进步导致了纳米级铝土矿（铝土矿）颗粒的产生，这些颗粒表现出独特的性能，可以增强各种材料的性能。这些创新为改进催化剂、涂层和复合材料开辟了可能性。此外，随着各行业寻求轻量化和耐用材料，全球对铝土矿（铝土矿）的需求预计将上升。汽车和航空航天部门尤其越来越多地利用铝组件来减轻重量，提高燃油效率。因此，铝土矿（铝土矿）的生产和加工将继续成为未来关注的关键领域。总之，铝土矿（铝土矿）不仅仅是一个简单的化合物；它是现代工业和技术的基石。它的应用范围从铝生产到先进材料科学，突显了它的多功能性和重要性。随着我们朝着更可持续的未来发展，铝土矿（铝土矿）在回收和资源保护方面的作用将变得越来越重要。了解铝土矿（铝土矿）的性质和用途对于任何参与材料科学、工程或环境研究的人来说都是必不可少的。对这一化合物的持续探索无疑将导致更多的创新和应用，造福整个社会。