Zhi Zhao, Xuan Yao, Chao Hou, Tielong Han, Erqi Yang, Xiaotong Zheng, Xinyu Li, Xiaoyan Song
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引用次数: 0
Abstract
Conventional fabrication methods for WCu composites possess several limitations on the ultimate densification and comprehensive performance of products. Here we propose an innovative protocol to prepare WCu via photochemical reactions at ambient conditions. Specifically engineered polymeric reagent guided the continuous growth of Cu within W matrix and enhanced the affinity among W/Cu phases, whose combination led to well densified WCu composite. Our strategy completely avoided thermally induced grain growth and flipped the immiscible nature of W/Cu interfaces. It was even possible to simultaneously fabricate and shape products using patterned light field. This strategy provides new insight on fabricating metallic composites.
期刊介绍：
The International Journal of Refractory Metals and Hard Materials (IJRMHM) publishes original research articles concerned with all aspects of refractory metals and hard materials. Refractory metals are defined as metals with melting points higher than 1800 °C. These are tungsten, molybdenum, chromium, tantalum, niobium, hafnium, and rhenium, as well as many compounds and alloys based thereupon. Hard materials that are included in the scope of this journal are defined as materials with hardness values higher than 1000 kg/mm2, primarily intended for applications as manufacturing tools or wear resistant components in mechanical systems. Thus they encompass carbides, nitrides and borides of metals, and related compounds. A special focus of this journal is put on the family of hardmetals, which is also known as cemented tungsten carbide, and cermets which are based on titanium carbide and carbonitrides with or without a metal binder. Ceramics and superhard materials including diamond and cubic boron nitride may also be accepted provided the subject material is presented as hard materials as defined above.
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