premature sintering

简明释义

早期熔结

英英释义

例句

1.The team was concerned about premature sintering affecting the mechanical properties of the alloy.

团队担心早熟烧结会影响合金的机械性能。

2.To avoid premature sintering, it is crucial to control the temperature carefully during the firing process.

为了避免早熟烧结，在烧制过程中仔细控制温度至关重要。

3.We implemented a new cooling strategy to minimize premature sintering in our manufacturing process.

我们实施了一种新的冷却策略，以最小化我们的生产过程中出现的早熟烧结。

4.The ceramic samples showed signs of premature sintering due to excessive heating during the initial phase.

由于在初始阶段过度加热，陶瓷样品显示出早熟烧结的迹象。

5.The research indicated that premature sintering can lead to defects in the final product.

研究表明，早熟烧结可能导致最终产品出现缺陷。

作文

In the field of materials science, particularly in the production of ceramics and metal powders, the term premature sintering refers to an unwanted process where particles begin to fuse together at a temperature lower than the optimal sintering temperature. This phenomenon can significantly affect the properties of the final product, leading to subpar performance and reduced mechanical strength. Understanding premature sintering is crucial for engineers and scientists who aim to develop high-quality materials that meet specific requirements for various applications.The sintering process itself involves heating powdered materials to a temperature where particles bond together without melting completely. This process is essential for creating dense, strong materials. However, if the temperature is too low or if certain conditions, such as excessive moisture or contamination, are present, premature sintering may occur. This can result in uneven particle distribution and create defects within the material structure.One of the primary causes of premature sintering is the presence of impurities in the powder mixture. These impurities can lower the melting point of the particles, causing them to fuse together before the intended sintering temperature is reached. Additionally, the size and shape of the powder particles play a significant role. Fine particles may sinter more readily under lower temperatures, leading to early bonding that compromises the integrity of the final product.To mitigate the risks associated with premature sintering, researchers often focus on optimizing the composition and processing conditions of the materials. This includes selecting high-purity raw materials, controlling the particle size distribution, and adjusting the sintering atmosphere. For example, using inert gases during the sintering process can help prevent oxidation and contamination, reducing the likelihood of premature bonding.Moreover, advanced techniques such as computer simulations and modeling can aid in predicting the behavior of materials during the sintering process. By understanding the thermodynamic and kinetic parameters involved, scientists can better control the conditions that lead to premature sintering. This predictive capability allows for the design of materials that achieve the desired properties without falling victim to premature bonding.In conclusion, premature sintering is a critical consideration in the field of materials science, particularly in the manufacturing of ceramics and metal powders. Its impact on the quality and performance of materials cannot be overstated. By gaining a thorough understanding of the factors that contribute to this phenomenon, engineers and scientists can develop strategies to prevent it, ensuring that the final products meet the highest standards of performance and reliability. As technology continues to advance, the ability to control and manipulate the sintering process will be essential for the development of innovative materials that can withstand the demands of modern applications.

在材料科学领域，特别是在陶瓷和金属粉末的生产中，术语premature sintering指的是一种不希望发生的过程，其中颗粒在低于最佳烧结温度的情况下开始相互融合。这种现象会显著影响最终产品的性能，导致性能不佳和机械强度降低。理解premature sintering对工程师和科学家来说至关重要，他们旨在开发满足各种应用特定要求的高质量材料。烧结过程本身涉及将粉末材料加热到一个温度，在该温度下颗粒在不完全熔化的情况下结合在一起。这个过程对于创造致密、坚固的材料是必不可少的。然而，如果温度过低，或存在某些条件，例如过多的湿气或污染，就可能发生premature sintering。这可能导致颗粒分布不均，并在材料结构中产生缺陷。导致premature sintering的主要原因之一是粉末混合物中存在杂质。这些杂质可以降低颗粒的熔点，导致它们在达到预期烧结温度之前就开始融合。此外，粉末颗粒的大小和形状也起着重要作用。细小颗粒可能在较低温度下更容易烧结，从而导致早期结合，损害最终产品的完整性。为了减轻与premature sintering相关的风险，研究人员通常专注于优化材料的组成和加工条件。这包括选择高纯度的原材料、控制颗粒的大小分布以及调整烧结气氛。例如，在烧结过程中使用惰性气体可以帮助防止氧化和污染，降低早期结合的可能性。此外，计算机模拟和建模等先进技术可以帮助预测材料在烧结过程中的行为。通过理解涉及的热力学和动力学参数，科学家可以更好地控制导致premature sintering的条件。这种预测能力使得设计出在没有遭受早期结合的情况下实现所需性能的材料成为可能。总之，premature sintering是材料科学领域中的一个关键考虑因素，特别是在陶瓷和金属粉末的制造中。它对材料的质量和性能的影响不容小觑。通过深入理解导致这一现象的因素，工程师和科学家可以制定防止其发生的策略，确保最终产品符合最高的性能和可靠性标准。随着技术的不断进步，控制和操纵烧结过程的能力将对开发能够承受现代应用需求的创新材料至关重要。