TY - JOUR
T1 - Morphological study of micropits formed by anodic etching of an Al-Pd-Mn icosahedral quasicrystal
AU - Saito, K.
AU - Sasaki, T.
AU - Sugawara, S.
AU - Guo, J. Q.
AU - Tsai, A. P.
PY - 2000/5
Y1 - 2000/5
N2 - Faceted micropits obtained by electrochemical etching of a single quasicrystal of an Al-Pd-Mn icosahedral phase have been examined by optical and electron microscopy. Anodic etching of the flat surface of a fivefold plane in a solution composed of CH3OH and HNO3 (3:1 in volume ratio) reveals a variety of icosahedrally faceted micropits which originated from pre-existing microvoids and etch pits pentagonal pyramid shape due to the other origins, probably structural defects inside the specimen. As the dissolution progresses, the micropits make successive changes in their shapes, ending in pentagonal pyramids before they vanish.
AB - Faceted micropits obtained by electrochemical etching of a single quasicrystal of an Al-Pd-Mn icosahedral phase have been examined by optical and electron microscopy. Anodic etching of the flat surface of a fivefold plane in a solution composed of CH3OH and HNO3 (3:1 in volume ratio) reveals a variety of icosahedrally faceted micropits which originated from pre-existing microvoids and etch pits pentagonal pyramid shape due to the other origins, probably structural defects inside the specimen. As the dissolution progresses, the micropits make successive changes in their shapes, ending in pentagonal pyramids before they vanish.
UR - http://www.scopus.com/inward/record.url?scp=0034190876&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0034190876&partnerID=8YFLogxK
U2 - 10.1080/095008300176074
DO - 10.1080/095008300176074
M3 - Article
AN - SCOPUS:0034190876
SN - 0950-0839
VL - 80
SP - 307
EP - 315
JO - Philosophical Magazine Letters
JF - Philosophical Magazine Letters
IS - 5
ER -