Photoplastic effect on ice
- Dartmouth College, Hanover, NH (United States). Thayer School of Engineering
The study of photoplastic effect (PPE) on ice is essential for both fundamental and applied reasons. It is important for an understanding of dislocation motion as well as the flow of glaciers in cold regions that occurs under intensive solar radiation. It was found that the illumination of ice with UV light ({lambda}<300 nm) leads to its irreversible hardening. A prolonged irradiation with a total light exposure of about 8{center_dot}10{sup {minus}5} J/cm{sup 2} at {lambda} = 260 nm can change the creep rate up to 60 percent. Even more pronounced PPE was found in HCl-doped ice with the concentration, n = 10{sup 18} cm{sup {minus}3}. It is suggested that PPE is caused by the excitation of ``autoionization`` reaction which was found responsible for the photoconductivity of ice.
- OSTI ID:
- 99450
- Report Number(s):
- CONF-941144-; ISBN 1-55899-275-8; TRN: IM9539%%244
- Resource Relation:
- Conference: Fall meeting of the Materials Research Society (MRS), Boston, MA (United States), 28 Nov - 9 Dec 1994; Other Information: PBD: 1995; Related Information: Is Part Of Microstructure of irradiated materials; Robertson, I.M. [ed.] [Univ. of Illinois, Urbana, IL (United States). Dept. of Materials Science and Engineering]; Rehn, L.E. [ed.] [Argonne National Lab., IL (United States). Materials Science Div.]; Zinkle, S.J. [ed.] [Oak Ridge National Lab., TN (United States). Metals and Ceramics Div.]; Phythian, W.J. [ed.] [AEA Technology-Harwell, Oxon (United Kingdom)]; PB: 588 p.; Materials Research Society symposium proceedings, Volume 373
- Country of Publication:
- United States
- Language:
- English
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