Mechanical properties of individual phases of ZrB2-ZrC eutectic composite measured by nanoindentation
Mechanical properties of individual phases of ZrB2-ZrC eutectic composite measured by nanoindentation
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DOI：
10.1016/j.jeurceramsoc.2017.05.031
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发表时间：
2017-10-01
影响因子：
5.7
通讯作者：
Goto, Takashi
中科院分区：
文献类型：
--
作者：
Cheng, Eric Jianfeng;Li, Ying;Goto, Takashi
锆基陶瓷由于其高的硬度和稳定性而在航空航天推进中具有重要的应用价值。这些陶瓷的应用需要更好地了解它们在小尺度和高温下的机械行为。在这里，我们准备了一个ZrB 2-ZrC陶瓷共晶复合材料，由自组装的ZrC棒生长在单晶ZrB 2矩阵，并研究了在室温和高温下使用纳米压痕的各个共晶相的机械性能。在室温下测量了共晶复合材料的维氏硬度。这些数据提供了深入了解的非氧化物陶瓷共晶复合材料的高温应用的各个阶段的机械行为。(C)2017爱思唯尔有限公司版权所有
Zr-based ceramics are of interest for applications in aerospace propulsion, owing to their high hardness and stability. Application of these ceramics requires better understanding of their mechanical behavior in small scales and at elevated temperatures. Here, we prepared a ZrB2-ZrC ceramic eutectic composite, consisting of self-assembled ZrC rods grown within a single-crystalline ZrB2 matrix, and studied the mechanical properties of the individual eutectic phases using nanoindentation at both room and elevated temperatures. The Vickers hardness of the eutectic composite was measured at room temperature. These data provide insight into the understanding of the mechanical behavior of the individual phases of non oxide ceramic eutectic composites for high-temperature applications. (C) 2017 Elsevier Ltd. All rights reserved.