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首页> 外文期刊>Powder Metallurgy and Metal Ceramics >Science of Sintering: Evolution of Ideas, Advances, Current Challenges, and New Trends. II. Problem of Active Sintering. Early Studies
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Science of Sintering: Evolution of Ideas, Advances, Current Challenges, and New Trends. II. Problem of Active Sintering. Early Studies

机译:烧结科学:思想,进步,当前挑战和新趋势的演变。二。主动烧结问题。早期研究

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摘要

The papers focusing on experimental and theoretical studies on sintering kinetics of real powder systems that were published in the 1940s-1950s are analyzed. Two major concepts explaining the nature of the so-called activity shown by metallic powders and some inorganic powders during sintering are addressed in detail. One concept deals with the key role of plastic flow mechanism and the other gives preference to the role of crystal lattice defects formed in powder particles when produced in nonequilibrium conditions. The reasons why neither of the concepts can underlie the physical theory of active sintering, being in full agreement with the experiment, are ascertained.
机译:分析了在1940年代至1950年代发表的有关实际粉末系统烧结动力学的实验和理论研究的论文。详细介绍了两个主要概念,这些概念解释了金属粉末和某些无机粉末在烧结过程中表现出的所谓活性的性质。一种概念涉及塑性流动机制的关键作用,另一种概念优先考虑在非平衡条件下生产时在粉末颗粒中形成的晶格缺陷的作用。确定了这两个概念都不能作为主动烧结的物理理论基础的原因,这与实验完全吻合。

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