Spontaneous infiltration and wetting behaviors of a Zr-based alloy melt on a porous SiC substrate
来源期刊：International Journal of Minerals Metallurgy and Materials2018年第7期
论文作者：Bo Zhang Wen Li Hong Li Hai-feng Zhang
文章页码：817 - 823
摘 要：The spontaneous infiltration and wetting behaviors of a Zr-based alloy melt on porous a SiC ceramic plate were studied using the sessile drop method by continuous heating and holding for 1800 s at different temperatures in a high-vacuum furnace. The results showed that the Zr-based alloy melt could partly infiltrate the porous SiC substrate without pressure due to the effect of capillary pressure. Wettability and infiltration rates increased with increasing temperature, and interfacial reaction products(ZrC0.7 and TiC) were detected in the Zr-based alloy/SiC ceramic system, likely because of the reaction of the active elements Zr and Ti with elemental C. Furthermore, the redundant element Si diffused into the alloy melt.
Bo Zhang1，Wen Li2，Hong Li3，Hai-feng Zhang3
1. School of Materials Science and Engineering, Shenyang Aerospace University2. School of Materials Science and Engineering, Shenyang Ligong University3. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences
摘 要：The spontaneous infiltration and wetting behaviors of a Zr-based alloy melt on porous a SiC ceramic plate were studied using the sessile drop method by continuous heating and holding for 1800 s at different temperatures in a high-vacuum furnace. The results showed that the Zr-based alloy melt could partly infiltrate the porous SiC substrate without pressure due to the effect of capillary pressure. Wettability and infiltration rates increased with increasing temperature, and interfacial reaction products(ZrC0.7 and TiC) were detected in the Zr-based alloy/SiC ceramic system, likely because of the reaction of the active elements Zr and Ti with elemental C. Furthermore, the redundant element Si diffused into the alloy melt.
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