TY - JOUR
T1 - Preparation of Ti-coated diamond particles by microwave heating
AU - Gu, Quanchao
AU - Peng, Jinghui
AU - Xu, Lei
AU - Srinivasakannan, C.
AU - Zhang, Libo
AU - Xia, Yi
AU - Wu, Qingtian
AU - Xia, Hongying
N1 - Funding Information:
This work was financially supported by the National Natural Science Foundation of China (Grant Nos. 51204081 ), and by China Scholarship Council (NO. 2011853521 ), and by Yunnan Provincial Science and Technology Innovation Talents scheme-Technological Leading Talent of China (Nos. 2013HA002 ), and by Applied Basic Research Project of Yunnan Province of China (Grant Nos. 2013FZ008 ), and by Yunnan Provincial Department of Education Research Fund of China (Grant Nos. 2013Z118 ).
Publisher Copyright:
© 2016
PY - 2016/12/30
Y1 - 2016/12/30
N2 - Depositing strong carbide-forming elements on diamond surface can dramatically improve the interfacial bonding strength between diamond grits and metal matrix. In the present work, investigation on the preparation of Ti-coated diamond particles by microwave heating has been conducted. The morphology, microstructure, and the chemical composition of Ti-coated diamond particles were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and energy dispersive x-ray spectrometer (EDX). The thickness of Ti coating was measured and the interfacial binding strength between Ti coating and diamond was analyzed. The results show that the surface of the diamond particles could be successfully coated with Ti, forming a uniform and continuous Ti-coated layer. The TiC was found to form between the surface of diamond particles and Ti-coated layer. The amount of TiC as well as the thickness of coating increased with increasing coating temperature, furthermore, the grain size of the coating also grew gradually. The interfacial bonding strength between coating and diamond was found to be best at the temperature of 760 °C.
AB - Depositing strong carbide-forming elements on diamond surface can dramatically improve the interfacial bonding strength between diamond grits and metal matrix. In the present work, investigation on the preparation of Ti-coated diamond particles by microwave heating has been conducted. The morphology, microstructure, and the chemical composition of Ti-coated diamond particles were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and energy dispersive x-ray spectrometer (EDX). The thickness of Ti coating was measured and the interfacial binding strength between Ti coating and diamond was analyzed. The results show that the surface of the diamond particles could be successfully coated with Ti, forming a uniform and continuous Ti-coated layer. The TiC was found to form between the surface of diamond particles and Ti-coated layer. The amount of TiC as well as the thickness of coating increased with increasing coating temperature, furthermore, the grain size of the coating also grew gradually. The interfacial bonding strength between coating and diamond was found to be best at the temperature of 760 °C.
KW - Diamond
KW - Microwave heating
KW - Surface metallization
KW - Titanium coating
UR - https://www.scopus.com/pages/publications/84986570793
U2 - 10.1016/j.apsusc.2016.08.168
DO - 10.1016/j.apsusc.2016.08.168
M3 - Article
AN - SCOPUS:84986570793
SN - 0169-4332
VL - 390
SP - 909
EP - 916
JO - Applied Surface Science
JF - Applied Surface Science
ER -