Authors: Rajendra, A.; Parmar, Biren J.; Sharma, A. K.; Bhojraj, H.; Nayak, M. M.; Rajanna, K.

Source: Surface Engineering, Volume 21, Number 3, June 2005 , pp. 193-197(5)

Publisher: Maney Publishing

Abstract:

Hard anodising is normally carried out with electrolytes at subzero temperatures and with a very high current density. This may sometimes lead to burning and powdered deposits. In this work, a method of hard anodising at a higher temperature (10°C) using a pulsed power supply is investigated. The quality of coating obtained with this process is better than that obtained with the conventional method. Furthermore, it minimises the refrigeration requirements for cooling the electrolyte and eliminates the problem of burning and powdery coatings. The application of hard anodic coating with insulation resistance 1–30 G? up to 100 V dc to a pressure sensor as an insulating base layer is explored. The pressure sensor diaphragm is hard anodised, and this is followed by the deposition of a thin platinum–tungsten (92Pt–8W) film as strain sensor. The fabrication, characterisation and calibration of the pressure sensor and its applications are discussed.

Keywords: PRESSURE SENSOR; HARD ANODISING; PULSE POWER SUPPLY; ANODIC OXIDE COATING; ALUMINIUM ALLOYS

Document Type: Research Article

DOI: http://dx.doi.org/10.1179/174329405X50000

Publication date: 2005-06-01

More about this publication?

• Authors wishing to cite fast track papers should give the journal name and the article DOI. This will enable reference linking via CrossRef and allow forward and backward citation tracking systems to associate the fast track citation with the final journal reference.

  This journal features top 10 articles which are freely available. Please click here and click on the 'Top articles' link in the right-hand menu to view the list and start downloading.

• Editorial Board
• Information for Authors
• Subscribe to this Title
• Terms & Conditions
• Online submission site
• ingentaconnect is not responsible for the content or availability of external websites

Related content

• In this: publication
• By this: publisher
• In this Subject: Materials & Manufacturing ,  Mining & Metallurgy
• By this author: Rajendra, A. ;  Parmar, Biren J. ;  Sharma, A. K. ;  Bhojraj, H. ;  Nayak, M. M. ;  Rajanna, K.

Website © Publishing Technology. Article copyright remains with the publisher, society or author(s) as specified within the article.

• Terms and conditions
• Privacy policy
• Information for advertisers