Metallic matrix composites reinforced with carbon nanomaterials continue to attract interest because of their excellent mechanical, thermal, and electrical properties. However, two critical issues have limited their commercialization. Uniform distribution of carbon nanomaterials in metallic matrices is difficult, and the interfaces between the nanomaterials and matrices are weak. Microscope-based analysis was recently used to quantitatively examine these microstructural features and investigate their contributions to the composites’ mechanical, thermal, and electrical properties. The impacts of the microstructure on these properties are discussed in the first section of this review. In the second section, the various microscopic techniques used to study the distribution of carbon nanomaterials in metallic matrices and their interfaces are described.

中文翻译：

---

含碳纳米材料的金属基复合材料的显微分析

用碳纳米材料增强的金属基复合材料因其优异的机械、热和电性能而继续引起人们的兴趣。然而，两个关键问题限制了它们的商业化。碳纳米材料在金属基体中的均匀分布是困难的，纳米材料与基体之间的界面很弱。最近使用基于显微镜的分析来定量检查这些微观结构特征并研究它们对复合材料的机械、热和电性能的贡献。本综述的第一部分讨论了微观结构对这些性能的影响。在第二部分，