碳纳米管-镁基非晶复合材料的制备及力学性能

赵平; 李双寿; 彭浩; 刘金海

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碳纳米管-镁基非晶复合材料的制备及力学性能
Preparation of Carbon-nanotube Reinforced Mg Based Bulk Metallic Glass Composites and Its Mechanical Properties
2011年31卷第7期页码：656-660
纸质出版日期： 2011 ，
DOI：

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[1]赵平,李双寿,彭浩,刘金海.碳纳米管-镁基非晶复合材料的制备及力学性能[J].特种铸造及有色合金,2011,31(07):656-660.

Zhao Ping1, Li Shuangshou1, Peng Hao1, et al. Preparation of Carbon-nanotube Reinforced Mg Based Bulk Metallic Glass Composites and Its Mechanical Properties[J]. Special Casting & Nonferrous Alloys, 2011,31(7):656-660.
[1]赵平,李双寿,彭浩,刘金海.碳纳米管-镁基非晶复合材料的制备及力学性能[J].特种铸造及有色合金,2011,31(07):656-660. DOI：

Zhao Ping1, Li Shuangshou1, Peng Hao1, et al. Preparation of Carbon-nanotube Reinforced Mg Based Bulk Metallic Glass Composites and Its Mechanical Properties[J]. Special Casting & Nonferrous Alloys, 2011,31(7):656-660. DOI：

摘要

采用铜模差压压铸的方法成功制备了碳纳米管颗粒增强镁基非晶复合材料

并对其微观结构、压缩性能、断裂强度及断口形貌进行了研究。结果表明

碳纳米管颗粒与非晶基体结合良好

其引入没有明显改变基体非晶合金的玻璃形成能力和热稳定性能;与非晶合金相比

复合材料的最大压缩强度及断裂位移有明显提高。碳纳米管在基体中复合的比较均匀

没有出现大面积团聚

并形成很多韧窝结构。

Abstract

Carbon-nanotube reinforced Mg-based bulk metallic glass composites were prepared successfully with copper mold by differential pressure casting. Moreover

the microstructure

compressive behavior

fracture strength as well as fracture morphology of the composites were investigated. The results show that there exists desirable bonding between carbon-nanotube particle and the Mg-based bulk metallic glass

and the glass forming ability and thermal stability of the Mg-based bulk metallic glass can not be apparently changed by the induction of carbon-nanotube particle. Compared with the matrix amorphous alloy

the composites exhibit obvious advantages in the maximum compressive strength and fracture displacement. Carbon-nanotube is uniformly distributed into the matrix amorphous alloy in the absence of large-area colony

meanwhile

amounts of dimple structure in the fracture morphology of the composites can be observed.