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首页> 外文期刊>Inorganic materials: applied research >Investigation of 100-Hour Aging of Niobium Composite Reinforced with Monocrystalline Fibers of α-Al_2O_3
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Investigation of 100-Hour Aging of Niobium Composite Reinforced with Monocrystalline Fibers of α-Al_2O_3

机译：用α-Al_2O_3单晶纤维加固100小时老化的铌复合材料

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摘要

The effect of 100-hour aging at 1350°C on the matrix–fiber interfacial bond, matrix structure, bond type, and high-temperature strength of Nb composite reinforced with α-Al_(2)O_(3)single crystal fibers has been studied. It has been found that, in the samples after pressing, as well as after 100-hour aging, no chemical interaction is detected at the matrix–fiber interface, i.e., there is no “chemical” bond, and a “mechanical” bond is realized in Bauman’s notation. At the same time, the process of mutual diffusion of matrix and fiber elements after 100-hour aging has been studied and an increase in the strength of the composite has been found. This indicates an increase in the frictional bond and/or formation of another type of bond, which at this stage does not cause fiber degradation. It was not possible to determine numerical values of the contribution of the “new type” of bonds to the increase in the strength of the composition.
机译：在1350℃下为100小时老化的基质纤维界面键，基质结构，粘合型和高温强度，用α-Al_（2）O_（3）单晶纤维增强的Nb复合材料的高温强度 研究过。 已经发现，在按压后的样品中，除了100小时后，在基质 - 纤维界面中没有检测到化学相互作用，即没有“化学”键，“机械”键合 在鲍曼的符号中实现。 同时，已经研究了100小时老化后基质和纤维元件的相互扩散的过程，并发现了复合材料强度的增加。 这表明在该阶段的摩擦键和/或形成的摩擦粘合和/或形成，这在该阶段不会引起纤维降解。 不可能确定“新型”键的贡献的数值，以增加组合物强度的增加。

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