The least square-free number in an arithmetic progression.
The least square-free number in an arithmetic progression.
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DOI：
10.1515/crll.1982.332.204
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发表时间：
1982
期刊：
影响因子：
--
通讯作者：
D. R. Heath-Brown
中科院分区：
文献类型：
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作者：
D. R. Heath-Brown
增强纤维在金属基体中精确地排列和分布，方法是：（a）形成金属的波纹板，用增强纤维填充凹谷，将板夹在两个相同金属的平板之间，并使组件经受压力和高温，直到金属基体层变得整体结合，或（B）以交替或周期性但平行的方式将增强金属和金属基体的纤维或棒放置在两片金属基体之间，并使该组件经受压力和升高的温度，直到金属基体变得整体结合。或者，在这两种情况下，可以将组件卷成圆柱体，其中增强纤维平行于圆柱体的轴线，并且将所得的组件挤出成坯料或在升高的温度下压实。
Reinforcing fibers are precisely aligned and distributed in a metal matrix by (a) forming a corrugated sheet of the metal, filling the valleys with reinforcing fibers, sandwiching the sheet between two flat sheets of the same metal and subjecting the assembly to pressure and elevated temperatures until the layers of metal matrix become integrally bonded, or (b) placing between two sheets of metal matrix in an alternate or periodic but parallel fashion fibers or rods of both the reinforcing metal and the metal matrix and subjecting the assembly to pressure and elevated temperatures until the metal matrix becomes integrally bonded. Alternatively, in both instances the assembly can be rolled into a cylinder with the reinforcing fibers parallel to the axis of the cylinder and the resulting assembly extruded into a billet or compacted at elevated temperatures.