过份
发表于 2025-3-26 21:42:00
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laparoscopy
发表于 2025-3-27 02:03:37
Theory of Pressure Infiltration,imental results. The infiltration theory is based on Darcy’s law, which was introduced in .. It allows us to predict most aspects of pressure infiltration: the start point of preform deformation, the distribution of preform compression, preform breakage, infiltration stop mechanism, infiltration sto
龙虾
发表于 2025-3-27 07:39:30
Centrifugal Casting of Metal Matrix Composites,of molten metal into fibrous preforms using centrifugal force is discussed theoretically and the predictions of the theory are compared with experimental results. We discuss the rotational speed necessary for infiltration to start, the pressure distribution in the preforms, the velocity of the infil
Alpha-Cells
发表于 2025-3-27 10:20:18
Properties of Composites,dulus depend on the shape and properties of the reinforcements, their distribution and volume fraction and the bonding strength at the reinforcement/matrix interface, as well as the properties of the matrix itself. Basic ideas and proposed models are introduced to understand the mechanical propertie
colony
发表于 2025-3-27 16:21:33
Superplasticity of Composites, particles or fibers and usually have poor ductility, so superplastic composites (which were discovered in 1984) are definitely unusual. Superplasticity in MMCs occurs at high strain rates and at high temperatures near the solidus line of the matrix alloys. The strain rate is 100–1,000 times faster
Lineage
发表于 2025-3-27 21:27:14
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parsimony
发表于 2025-3-28 01:58:00
Recycling of Composites,cussed from a free energy viewpoint. Reinforcements are stable within the composite. However, it is shown thermodynamically that if we change the energy at the reinforcement/matrix metal interface, we can separate the reinforcements from the matrix. Reinforcements can be separated by either mechanic
ECG769
发表于 2025-3-28 04:44:43
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adj忧郁的
发表于 2025-3-28 10:08:56
Theory of Pressure Infiltration,p point and the influence of preheat temperature of the preform. In addition, the theory enables us to easily determine suitable pressure infiltration conditions for the development of new MMCs. The characteristic features of the pressure infiltration process are also summarized in this chapter.
HERTZ
发表于 2025-3-28 10:43:49
Superplasticity of Composites,than that required to produce superplasticity in alloys. In this chapter, the mechanism of superplasticity is discussed using constitutive equations, where the shapes of the reinforcements are limited to particles or short, fine fibers. Equal channel angular pressing is introduced as one production method for superplastic MMCs.