中文摘要：

有 Mo-12Si-8.5B 的一篇作文的 Mo-Si-B nanocomposite 粉末(在 at.%) 在不同 milling 时间和 powder-to-ball 比率在 milling 条件下面用机械 alloying 被处理。Mo-12Si-8.5B 合金，由瞬间和金属间化合的瞬间 ₃3 Si 和 T2 分阶段执行，它甚至在在 900  °C 的低温度的退火以后形成了。增加退火的温度仅仅改进了各种各样的阶段的 crystallinity。当 milled 和退火的粉末是 hot-pressed sintered 时， Mo-Si-B 合金展出了有细密纹理的微观结构，在的地方 intermetallics 瞬间 ₃ Si 和 T2 在一个连续瞬间矩阵被散布。

英文摘要：

Mo-Si-B nanocomposite powders with a composition of Mo-12Si-8.5B （in at.%） were processed using mechanical alloying under milling conditions for different milling time and powder-to-ball ratios. The Mo-12Si-8.5B alloy, which consists of α-Mo and intermetallic Mo3Si and T2 phases, was also synthesized by hot-pressed sintering the mechanically alloyed powders under a pressure of 50 MPa at 1600 ℃. The results demonstrated that the sizes and morphologies of the powder particles became gradually refined and uniform by both increasing the milling time and decreasing the powder-to-ball ratio. After 15 h of milling, the powders were completely homogenized at the 1：10 and the 1 ： 15 powder-to-ball weight ratios, and the homogenization was accelerated to rapidly stabilize the milling process because of their high milling energy. Annealing the Mo-Si-B milled powders could promote the growth of the intermetallic Mo3Si and the T2 phases, which formed even after low-temperature annealing at 900 ℃. Increasing the annealing temperature only improved the crystallinity of various phases. When the milled and annealed powders were hot-pressed sintered, the Mo-Si-B alloy exhibited a fine-grained microstructure, where the intermetallics Mo3Si and T2 were distributed in a continuous α-Mo matrix.