Microstructure of ZrB2–ZrN directionally solidified eutectic composite by arc-melting
A ZrB2–ZrN eutectic composite was prepared by arc-melting a mixture of ZrB2 and ZrN powders under a N2 atmosphere. The eutectic composition was 48ZrB2–52ZrN (mol%), resulting in a rod-like microstructure comprising hexagonally faceted ZrN single-crystal rods dispersed in a ZrB2 single-crystal matrix...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2018-01-01
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| Series: | Journal of Asian Ceramic Societies |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/21870764.2018.1446467 |
| Summary: | A ZrB2–ZrN eutectic composite was prepared by arc-melting a mixture of ZrB2 and ZrN powders under a N2 atmosphere. The eutectic composition was 48ZrB2–52ZrN (mol%), resulting in a rod-like microstructure comprising hexagonally faceted ZrN single-crystal rods dispersed in a ZrB2 single-crystal matrix. The crystal orientation relationship between the ZrB2 matrix and the ZrN rod was ZrB2 $$\left\{ {11\bar 20} \right\}$$//ZrN{101} and ZrB2 <0001>//ZrN <111>. The rod-like eutectic composite had a Vickers hardness of 16.2 GPa. |
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| ISSN: | 2187-0764 |