Nano alumina slurries for improved polishing on thermoset and thermoplastic resins

Abigail R. Hooper; Christopher C. Boffa; Harry W. Sarkas

doi:10.1117/12.2196058

11 October 2015 Nano alumina slurries for improved polishing on thermoset and thermoplastic resins

Abigail R. Hooper, Christopher C. Boffa, Harry W. Sarkas

Proceedings Volume 9633, Optifab 2015; 963305 (2015) https://doi.org/10.1117/12.2196058
Event: SPIE Optifab, 2015, Rochester, New York, United States

Abstract

Cerium oxide, because of its commonality to the optical workshop, is often used as the go-to abrasive for polishing many different substrates. For silica containing substrates, cerium oxide is an excellent abrasive choice because it allows for both chemical and mechanical polishing. However, plastic lenses do not contain silica and thereby cannot undergo the same chemical reaction with cerium oxide. These substrates are also very vulnerable to sleeks and scratches, and the tabular cerium oxide can impart defects into the surface resulting in scratch-dig failures and higher than expected surface roughness values. With the recent market push for plastic optical components, selection of an appropriate polishing slurry is critical to maintaining a competitive edge in the market and a profitable business.

In this paper, the authors will show how using an aluminum oxide can improve performance on thermoset and thermoplastic resins like polycarbonate, Zeonex^® and Acrylic^a. The shape of the aluminum oxide allows for reduced defectivity while the high hardness of the abrasive allows for a removal rate tunable to the substrate hardness.

Citation Download Citation

Abigail R. Hooper, Christopher C. Boffa, and Harry W. Sarkas "Nano alumina slurries for improved polishing on thermoset and thermoplastic resins", Proc. SPIE 9633, Optifab 2015, 963305 (11 October 2015); https://doi.org/10.1117/12.2196058

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available