Journal
MATERIALS & DESIGN
Volume 182, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2019.108039
Keywords
Wetting mechanism; Synthetic diamond; Adsorption; Interface reaction; Low-temperature
Categories
Funding
- Subsidized Project for Cultivating Postgraduates' Innovative Ability in Scientific Reacher of Huaqiao University [1601103002]
- National Natural Science Foundation of China [51675191]
- Department of Science and Technology of Fujian Province [2017H6014]
- Changjiang Scholars and Innovative Research Team in University [IRT_17R41]
- Australian Research Council [DP180103275]
Ask authors/readers for more resources
Synthetic diamond is an important carbonous material that has widespread applications ranging from machine tools to the next-generation wafer of powder devices. Understanding of its wetting behaviours is therefore essential for the development of the highly required diamond bonding technique. In this paper, the wettability and spreading kinetics of Sn-Ti solder alloys were systematically investigated on polycrystalline chemical vapour deposition (CVD) diamond using the sessile drop method. hi situ examination of contact angles at continuously elevated temperatures indicated that wetting of the CVD diamond by Sn-Ti solder alloys commenced at temperatures well below the bonding temperatures of conventional filler alloys. An excellent wetting of Sn-Ti solder alloy on the CVD diamond was induced by the addition of a small amount of Ti (0.5 wt%). It was also revealed that the spreading process of Sn-Ti alloys on the CVD diamond was initially controlled by the Ti adsorption at the wetting triple line. Enhancing the Ti adsorption at the wetting triple line could effectively improve the low-temperature wettability of Sn-Ti alloys on the CVD diamond, such as the case of 600 degrees C in this work, at which the possibility of surface corrosion and thermal damage of diamond devices can be substantially reduced. (C) 2019 The Authors. Published by Elsevier Ltd.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available