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Producing Particulate Reinforced Composites

总结: Purdue University researchers have developed a method to improve the noted in situ method by applying acoustic vibrations to separate the reaction products from the large particles initially added to the melt. This new method produces smaller, more spherical reaction products and encourages chemical cooling, making it possible to increase the strength, hardness, and wear resistance of many metals and alloys such as aluminum and magnesium. Al and Mg alloys, in particular, are lightweight materials that have increasing applications in the defense and transportation industries.

技术优势: Produces smaller, more spherical reaction productsEncourages chemical cooling Increases strength, hardness, and wear resistance of Al and Mg alloys

*Background: Alloys, such as steel, are hard materials composed of a mixture of different quantities of chemical elements. The composition of the alloy creates desirable physical properties. In situ methods are the most cost-effective techniques for creating these metal composites. One in situ method involves the addition of large particles to melted metal to create a reaction that forms a reinforced metal matrix. However, the strength of this new matrix is limited by the rate of the reaction and temperature at which the reaction occurs.

*Web Links: Purdue Office of Technology CommercializationPurdueInnovation and EntrepreneurshipQingyou HanPurdue Materials Engineering

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