aluminium oxide

简明释义

氧化铝;

英英释义

例句

1.The surface of the metal was coated with aluminium oxide to prevent corrosion.

金属表面涂覆了铝氧化物以防止腐蚀。

2.The production of aluminium oxide is a key step in the extraction of aluminium from its ore.

生产铝氧化物是从其矿石中提取铝的关键步骤。

3.In the laboratory, we used aluminium oxide as a catalyst in our chemical reactions.

在实验室中，我们将铝氧化物用作化学反应的催化剂。

4.When polishing metals, aluminium oxide abrasives are often used for a smooth finish.

在抛光金属时，通常使用铝氧化物磨料以获得光滑的表面。

5.The ceramic tile is made from a mixture that includes aluminium oxide for added strength.

这种陶瓷砖是由包括铝氧化物的混合物制成，以增加强度。

作文

Aluminium oxide, also known as alumina, is a chemical compound made up of aluminium and oxygen. This compound plays a significant role in various industrial applications due to its unique properties. One of the most notable characteristics of aluminium oxide (铝氧化物) is its hardness; it ranks just below diamond on the Mohs scale of mineral hardness. This makes it an ideal material for use in abrasives and cutting tools. In fact, many grinding wheels and sandpapers contain aluminium oxide (铝氧化物) as a primary component, allowing them to effectively cut through metals and other hard materials.In addition to its hardness, aluminium oxide (铝氧化物) is also highly resistant to corrosion, which adds to its versatility. This property is particularly beneficial in the manufacturing of protective coatings for metals. For example, when applied as a thin layer, aluminium oxide (铝氧化物) can prevent rust and oxidation, extending the lifespan of metal products. This is why you will often find aluminium oxide (铝氧化物) used in the aerospace and automotive industries, where durability and resistance to environmental factors are crucial.Moreover, aluminium oxide (铝氧化物) is utilized in the production of ceramics. Its high melting point and thermal stability make it an excellent choice for creating ceramic materials that can withstand extreme temperatures. This quality is essential in applications such as kiln linings and heat-resistant components. Additionally, aluminium oxide (铝氧化物) is used in the manufacture of electrical insulators, as it is an effective insulator of electricity.Another interesting application of aluminium oxide (铝氧化物) is in the field of electronics. It is commonly used as a substrate material for microelectronics. The ability of aluminium oxide (铝氧化物) to provide excellent insulation while also being thermally conductive makes it an ideal choice for electronic devices. Furthermore, its compatibility with various semiconductor materials enhances its utility in modern technology.The production of aluminium oxide (铝氧化物) typically involves the Bayer process, which extracts alumina from bauxite ore. This process involves crushing the bauxite and treating it with sodium hydroxide, resulting in the formation of sodium aluminate. After several steps, including precipitation and calcination, pure aluminium oxide (铝氧化物) is obtained. This highlights the importance of sustainable practices in the extraction and processing of raw materials, as the mining of bauxite can have significant environmental impacts.In conclusion, aluminium oxide (铝氧化物) is a versatile compound that finds applications across various industries due to its unique properties such as hardness, corrosion resistance, and thermal stability. As technology continues to advance, the demand for materials like aluminium oxide (铝氧化物) will likely increase, making it a vital component in the development of new and innovative products. Understanding the significance of aluminium oxide (铝氧化物) not only highlights its practical uses but also emphasizes the need for responsible sourcing and processing of this important material.

铝氧化物，也被称为铝土矿，是由铝和氧组成的化合物。由于其独特的性质，这种化合物在各种工业应用中发挥着重要作用。铝氧化物（铝氧化物）最显著的特征之一是其硬度；它在摩氏硬度等级中仅次于钻石。这使得它成为磨料和切削工具的理想材料。事实上，许多磨轮和砂纸都含有铝氧化物（铝氧化物）作为主要成分，使其能够有效地切割金属和其他硬材料。除了硬度外，铝氧化物（铝氧化物）还具有很强的耐腐蚀性，这增加了其多功能性。这一特性在金属保护涂层的制造中尤为有益。例如，当作为薄层涂覆时，铝氧化物（铝氧化物）可以防止生锈和氧化，从而延长金属产品的使用寿命。这就是为什么你会发现铝氧化物（铝氧化物）广泛用于航空航天和汽车工业，在这些领域，耐用性和抵抗环境因素至关重要。此外，铝氧化物（铝氧化物）还用于陶瓷的生产。其高熔点和热稳定性使其成为制作能够承受极端温度的陶瓷材料的绝佳选择。这一特性在窑衬和耐热部件等应用中至关重要。此外，铝氧化物（铝氧化物）还用于电气绝缘体的制造，因为它是电的有效绝缘体。铝氧化物（铝氧化物）的另一个有趣应用是在电子领域。它通常用作微电子的基板材料。铝氧化物（铝氧化物）提供优良绝缘的同时又具有热导性，使其成为电子设备的理想选择。此外，它与各种半导体材料的兼容性增强了其在现代技术中的实用性。铝氧化物（铝氧化物）的生产通常涉及拜耳法，该法从铝土矿中提取铝土矿。这个过程包括破碎铝土矿并用氢氧化钠处理，从而形成铝酸钠。经过多个步骤，包括沉淀和焙烧，获得纯净的铝氧化物（铝氧化物）。这突显了在原材料的提取和加工中可持续实践的重要性，因为铝土矿的开采可能对环境产生重大影响。总之，铝氧化物（铝氧化物）是一种多功能化合物，由于其硬度、耐腐蚀性和热稳定性等独特性质，在各个行业中找到了应用。随着技术的不断进步，对像铝氧化物（铝氧化物）这样的材料的需求可能会增加，使其成为新产品开发中的重要组成部分。理解铝氧化物（铝氧化物）的重要性不仅突显了其实际用途，还强调了对这一重要材料的负责任的采购和加工的必要性。