TY - JOUR
T1 - Natural quasicrystal with decagonal symmetry
AU - Bindi, Luca
AU - Yao, Nan
AU - Lin, Chaney
AU - Hollister, Lincoln S.
AU - Andronicos, Christopher L.
AU - Distler, Vadim V.
AU - Eddy, Michael P.
AU - Kostin, Alexander
AU - Kryachko, Valery
AU - MacPherson, Glenn J.
AU - Steinhardt, William M.
AU - Yudovskaya, Marina
AU - Steinhardt, Paul J.
N1 - Funding Information:
We thank A.-P. Tsai for advice on synthetic decagonal phases. L.B. thanks ‘MEMA’, Centro di Microscopia Elettronica e Microanalisi, Florence, Italy and ‘CRIST’, Centro di Cristallografia Strutturale, Sesto Fiorentino, Florence, Italy. This work was supported in part by the National Science Foundation-MRSEC program through New York University (DMR-0820341; P.J.S.), through the Princeton Center for Complex Materials (DMR-0819860; N.Y.), and NASA grant NNX11AD43G (G.J.M.). We are grateful to the anonymous donor who supported the expedition to Chukotka through a grant to Princeton University (P.J.S., Principal Investigator).
Publisher Copyright:
© 2015, NPG. All rights reserved.
PY - 2015
Y1 - 2015
N2 - We report the first occurrence of a natural quasicrystal with decagonal symmetry. The quasicrystal, with composition Al71Ni24Fe5, was discovered in the Khatyrka meteorite, a recently described CV3 carbonaceous chondrite. Icosahedrite, Al63Cu24Fe13, the first natural quasicrystal to be identified, was found in the same meteorite. The new quasicrystal was found associated with steinhardtite (Al38Ni32Fe30), Fe-poor steinhardtite (Al50Ni40Fe10), Al-bearing trevorite (NiFe2O4) and Al-bearing taenite (FeNi). Laboratory studies of decagonal Al71Ni24Fe5 have shown that it is stable over a narrow range of temperatures, 1120 K to 1200 K at standard pressure, providing support for our earlier conclusion that the Khatyrka meteorite reached heterogeneous high temperatures [1100 < T(K) ≤ 1500] and then rapidly cooled after being heated during an impact-induced shock that occurred in outer space 4.5 Gya. The occurrences of metallic Al alloyed with Cu, Ni, and Fe raises new questions regarding conditions that can be achieved in the early solar nebula.
AB - We report the first occurrence of a natural quasicrystal with decagonal symmetry. The quasicrystal, with composition Al71Ni24Fe5, was discovered in the Khatyrka meteorite, a recently described CV3 carbonaceous chondrite. Icosahedrite, Al63Cu24Fe13, the first natural quasicrystal to be identified, was found in the same meteorite. The new quasicrystal was found associated with steinhardtite (Al38Ni32Fe30), Fe-poor steinhardtite (Al50Ni40Fe10), Al-bearing trevorite (NiFe2O4) and Al-bearing taenite (FeNi). Laboratory studies of decagonal Al71Ni24Fe5 have shown that it is stable over a narrow range of temperatures, 1120 K to 1200 K at standard pressure, providing support for our earlier conclusion that the Khatyrka meteorite reached heterogeneous high temperatures [1100 < T(K) ≤ 1500] and then rapidly cooled after being heated during an impact-induced shock that occurred in outer space 4.5 Gya. The occurrences of metallic Al alloyed with Cu, Ni, and Fe raises new questions regarding conditions that can be achieved in the early solar nebula.
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U2 - 10.1038/srep09111
DO - 10.1038/srep09111
M3 - Article
C2 - 25765857
AN - SCOPUS:84924787554
SN - 2045-2322
VL - 5
JO - Scientific Reports
JF - Scientific Reports
M1 - 9111
ER -