TY - JOUR
T1 - Characterization of Mo/Mo2C interface in MoSiBTiC alloy
AU - Nakamura, Junya
AU - Kanekon, Daiki
AU - Yoshimi, Kyosuke
N1 - Funding Information:
This work was supported by the Advanced Low Carbon Technology Research and Development Program (ALCA) of the Japan Science, Technology Agency (JST) and Japan Society for the Promotion of Science (JSPS) Grants-in-Aid for Scientific Research (KAKENHI) Grant Number 15K18229 .
Publisher Copyright:
© 2016 Elsevier B.V. All rights reserved.
PY - 2016/10/1
Y1 - 2016/10/1
N2 - TiC-added Mo-Si-B alloys are stably composed of Moss, Mo5SiB2, (Ti, Mo)C, and (Mo, Ti)2C phases. In the alloys, interfacial cracking mainly occurred at the interface between Moss and Mo5SiB2 (T2). Thus, other interfaces such as between Moss, (Ti, Mo)C and (Mo, Ti)2C were investigated for understanding the mechanical properties. The above three kinds of the interfaces have special atomistic structures probably favorable to the mechanical properties. At the interface of Moss/(Mo, Ti)2C, (Mo, Ti)2C decomposes into Moss and (Ti, Mo)C, and then serrated, blade-shaped interfaces are formed. The Moss/(Ti, Mo)C interface has an orientation relationship of (110)Mo//(111)(Ti, Mo)C. The (Ti, Mo)C/(Mo, Ti)2C interface forms a ledge and terrace semi-coherent structure, and its orientation relationship is (111)(Ti, Mo)C//(100)(Mo, Ti)2C and [011](Ti, Mo)C//[010](Mo, Ti)2C. Therefore, Moss, (Ti, Mo)C and (Mo, Ti)2C have good coherency in the MoSiBTiC alloy. (119 words)
AB - TiC-added Mo-Si-B alloys are stably composed of Moss, Mo5SiB2, (Ti, Mo)C, and (Mo, Ti)2C phases. In the alloys, interfacial cracking mainly occurred at the interface between Moss and Mo5SiB2 (T2). Thus, other interfaces such as between Moss, (Ti, Mo)C and (Mo, Ti)2C were investigated for understanding the mechanical properties. The above three kinds of the interfaces have special atomistic structures probably favorable to the mechanical properties. At the interface of Moss/(Mo, Ti)2C, (Mo, Ti)2C decomposes into Moss and (Ti, Mo)C, and then serrated, blade-shaped interfaces are formed. The Moss/(Ti, Mo)C interface has an orientation relationship of (110)Mo//(111)(Ti, Mo)C. The (Ti, Mo)C/(Mo, Ti)2C interface forms a ledge and terrace semi-coherent structure, and its orientation relationship is (111)(Ti, Mo)C//(100)(Mo, Ti)2C and [011](Ti, Mo)C//[010](Mo, Ti)2C. Therefore, Moss, (Ti, Mo)C and (Mo, Ti)2C have good coherency in the MoSiBTiC alloy. (119 words)
KW - Borides
KW - Carbides
KW - Interface structure
KW - Interfaces
KW - Intermetallic Alloys and compounds
KW - Microstructure
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U2 - 10.1016/j.matlet.2016.04.133
DO - 10.1016/j.matlet.2016.04.133
M3 - Article
AN - SCOPUS:84975263666
VL - 180
SP - 340
EP - 343
JO - Materials Letters
JF - Materials Letters
SN - 0167-577X
ER -