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High strength, flowable, selectively degradable composite material and articles made thereby
High strength, flowable, selectively degradable composite material and articles made thereby
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机译:高强度,可流动,可选择性可降解的复合材料及其制品
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摘要
A lightweight, selectively degradable composite material is disclosed. The composite material comprises a compacted powder mixture of a first powder, the first powder comprising first metal particles comprising Mg, Al, Mn, or Zn, or an alloy of any of the above, or a combination of any of the above, having a first particle oxidation potential, a second powder, the second powder comprising low-density ceramic, glass, cermet, intermetallic, metal, polymer, or inorganic compound second particles, and a third metal powder, the third metal powder comprising third metal particles having an oxidation potential that is different than the first particle oxidation potential. The compacted powder mixture has a microstructure comprising a matrix comprising the first metal particles, the second particles and third particles dispersed within the matrix, the third particles comprising a network of third particles extending throughout the matrix, the composite material having a density of about 3.5 g/cm3 or less.
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机译:公开了一种轻质的选择性可降解的复合材料。复合材料包括第一粉末的压实粉末混合物,该第一粉末包括包含Mg,Al,Mn或Zn的第一金属颗粒,或上述任何一种的合金,或以上任何一种的组合,具有第一颗粒氧化电位,第二粉末,第二粉末,包括低密度陶瓷,玻璃,金属陶瓷,金属间质,金属,聚合物或无机化合物第二颗粒,以及第三金属粉末,第三金属粉末包含具有第三金属颗粒的第三金属粉末氧化电位与第一颗粒氧化电位不同。压实的粉末混合物的微观结构包括包含第一金属颗粒,分散在基质内的第三颗粒的基质,包括在整个基质中延伸的第三颗粒网络的第三颗粒,密度约为3.5的复合材料g / cm 3 sup>或更少。
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