Hydrogen-induced absorption in glasses containing arsenic and antimony

Michelle R. Tuzzolo; Jeffrey T. Kohli; James E. Shelby

doi:10.1117/12.22513

1 October 1990 Hydrogen-induced absorption in glasses containing arsenic and antimony

Michelle R. Tuzzolo, Jeffrey T. Kohli, James E. Shelby

Proceedings Volume 1327, Properties and Characteristics of Optical Glass II; (1990) https://doi.org/10.1117/12.22513
Event: 34th Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1990, San Diego, CA, United States

Abstract

Borosilicate, potassium and sodium silicate and potassium borate glasses containing small quantities of AsO3 and 5½03 darken from the surface when exposed to H2 in the glass transformation range. The depth of surface darkening is a function of time, temperature, and H2 pressure. Change in absorbance at constant wavelength increases with time but shows neither linear nor square root dependence on time. In addition, the absorbance change (X constant) does not show Arrhenius behavior as a function of treatment temperature, but instead appears to approach saturation. The same phenomena are observed for D2 treatments. Absorbance change at 300 nm from the H2 treated sample under identical temperature and pressure conditions differs by a factor of the square root of 2. Relative permeability of H2 and D2 is given by the square root of their mass ratio, i.e. 12. This finding suggests a direct proportionality between the inducedabsorption and the permeability of the diffusing species. The coloration is attributed to the reduction of the fining agent (As/Sb) and is accompanied by an increase in the hydroxyl concentration in the glass. The effect of base glass permeability, fining agent identity and fming agent concentration on the optical absorption will be discussed. Metallic colloidal scattering is proposed as the mechanism for the coloration. Evidence to support the mechanism is presented and discussed.

Citation Download Citation

Michelle R. Tuzzolo, Jeffrey T. Kohli, and James E. Shelby "Hydrogen-induced absorption in glasses containing arsenic and antimony", Proc. SPIE 1327, Properties and Characteristics of Optical Glass II, (1 October 1990); https://doi.org/10.1117/12.22513

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Glasses

Absorption

Absorbance

Antimony

Arsenic

Potassium

Rayleigh scattering

Show All Keywords

Keywords/Phrases

Search In:

Publication Years