English  |  正體中文  |  简体中文  |  Items with full text/Total items : 27454/39300
Visitors : 2536741      Online Users : 36
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search

Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/23557

Title: 以液態原子力顯微鏡即時觀察合金薄膜剝除行為之研究
Investigation into the Stripping Behavior of Alloy Coatings by In-situ Liquid Mode Atomic Force Microscope
Authors: Yu-Chu Kuo;Jyh-Wei Lee;Li-Chun Chang;Yung-I Chen;Chaur-Jeng Wang;Jen-Ching Huang
Contributors: NTOU:Institute of Materials Engineering
Keywords: Liquid mode atomic force microscopy;Mo-Ru thin film;Strippin
Date: 2009-03
Issue Date: 2011-10-20T08:06:36Z
Publisher: Journal of Chinese Corrosion Engineering
Abstract: Abstract:Hard coating materials are widely used in glass molding industries to prolong the lifetime and to enhance the mechanical properties of molding dies. The coating on the surface of a molding die in service could actually undergo both a cyclic thermal aging treatment and a high temperature oxidation process, which would lead to degradation in mechanical property and surface roughness of the coated die. To remove a failed coating resulted from service damage is therefore as important as to deposit it on the molding die. An Mo-Ru hard coating was deliberately stripped from a tungsten carbide substrate in an etching solution and the stripping process was monitored by the in-situ liquid mode atomic force microscope. The surface morphologies were analyzed by SEM, and the chemical composition and phases were evaluated by XRD and EDS. It was found that pits formed on the Mo-Ru hard coating through surface defect sites in the beginning, followed by the attack of the etchant to Cr interlayers. Accordingly, the Mo-Ru coating cracked and delaminated due to the residual stress and the accumulation of the etching products. On the other hand, the Ti interlayer was still effective to protect the tungsten carbide substrate from the attack of the etchant.
Relation: 23(1), pp.59-65
URI: http://ntour.ntou.edu.tw/handle/987654321/23557
Appears in Collections:[材料工程研究所] 期刊論文

Files in This Item:

File Description SizeFormat

All items in NTOUR are protected by copyright, with all rights reserved.


著作權政策宣告: 本網站之內容為國立臺灣海洋大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,請合理使用本網站之內容,以尊重著作權人之權益。
網站維護: 海大圖資處 圖書系統組
DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback