caa a22 4500 38801850X CHVBK 20180307124917.0 cr unu---uuuuu 161130e199811 xx s 000 0 eng 10.1557/JMR.1998.0427 doi S0884291400046616 pii (NATIONALLICENCE)cambridge-10.1557/JMR.1998.0427 Helical etch channels in quartz [Elektronische Daten] Helical etch channels were found to form in α-quartz when treated with anhydrous HF vapor at 400 °C. Both hydrogen and fluorine species were determined to play an important role in helix formation. Crystal orientation, quartz source, etch channel density, and surface pretreatments had no influence. Helix formation was altogether arrested when water was present in the etch vapor. The genesis of the helices remains unknown. Copyright © Materials Research Society 1998 Ballato John Department of Ceramic and Materials Engineering, Rutgers, The State University of New Jersey, 607 Taylor Road, Piscataway, New Jersey 08854-8065 Riman Richard E. Department of Ceramic and Materials Engineering, Rutgers, The State University of New Jersey, 607 Taylor Road, Piscataway, New Jersey 08854-8065 Vig John R. U.S. Army Communications-Electronics Command, AMSEL-RD-C2-CS, Fort Monmouth, NJ 07703-5603 Laffey Sally M. U.S. Army Communications-Electronics Command, AMSEL-RD-C2-CS, Fort Monmouth, NJ 07703-5603 Journal of Materials Research Cambridge University Press 13/11(1998-11), 3144-3148 0884-2914 13:11<3144 1998 13 JMR https://doi.org/10.1557/JMR.1998.0427 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1557/JMR.1998.0427 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ballato John Department of Ceramic and Materials Engineering, Rutgers, The State University of New Jersey, 607 Taylor Road, Piscataway, New Jersey 08854-8065 NATIONALLICENCE 700 1- Riman Richard E. Department of Ceramic and Materials Engineering, Rutgers, The State University of New Jersey, 607 Taylor Road, Piscataway, New Jersey 08854-8065 NATIONALLICENCE 700 1- Vig John R. U.S. Army Communications-Electronics Command, AMSEL-RD-C2-CS, Fort Monmouth, NJ 07703-5603 NATIONALLICENCE 700 1- Laffey Sally M. U.S. Army Communications-Electronics Command, AMSEL-RD-C2-CS, Fort Monmouth, NJ 07703-5603 NATIONALLICENCE 773 0- Journal of Materials Research Cambridge University Press 13/11(1998-11), 3144-3148 0884-2914 13:11<3144 1998 13 JMR CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge