1. PhD student position in powder diffraction/electron microscopy methodology
A PhD position, funded by the Swiss National Science Foundation, is available in the powder diffraction/zeolite crystallography research group. (http://www.crystal.mat.ethz.ch/r ... sPowderDiffraction)
The project is part of a larger one devoted to the development of methodology for the structure analysis of polycrystalline materials. Interest in the elucidation of the structures of novel zeolitic materials, in particular, provides the impetus for this work. However, the project is not restricted to zeolites. It also encompasses crystalline nanomaterials in general and may even expand to include the investigation of "real" materials with defect structures. The goal is to extend the present limits of structure solution for such materials by combining the complementary techniques of powder diffraction and electron microscopy.
In addition to method development, the project will entail data collection at synchrotron radiation facilities (ESRF and SLS), and collaborations with the electron microscopy center at ETH (EMEZ), an electron microscopy group in Stockholm and synthesis laboratories in several different countries. Applicants will be expected to take a lively interest in the materials and the crystallography and to have some computer science background. While experience in electron microscopy is not mandatory, it would be helpful.
Interested candidates with the equivalent of an ETH MSc in materials science, earth science, chemistry or physics are invited to send their curriculum vitae along with the names of two referees to
Dr. Lynne B. McCusker
Laboratory of Crystallography, ETH Zurich, CH-8093 Zurich, Switzerland
E-mail: mccusker@mat.ethz.ch
References:
F. Gramm, Ch. Baerlocher, L.B. McCusker, S.J. Warrender, P.A. Wright, B. Han, S.B. Hong, Z. Liu, T. Ohsuna and O. Terasaki, "Complex zeolite structure solved by combining powder diffraction and electron microscopy", Nature (2006), 444, 79-81
Ch. Baerlocher, F. Gramm, L. Massüger, L.B. McCusker, Z. He, S. Hovmöller and X. Zou, "Structure of the polycrystalline zeolite catalyst IM-5 solved by enhanced charge flipping", Science (2007), 315, 1113-1116
Ch. Baerlocher, D. Xie, L.B. McCusker, S.-J. Hwang, I.Y. Chan, K. Ong, A.W. Burton and S.I. Zones, "Ordered silicon vacancies in the framework structure of the zeolite catalyst SSZ-74" Nature Mater. (2008), 7, 631-635
D. Xie, Ch. Baerlocher and L.B. McCusker, "Combining precession electron diffraction dta with X-ray powder diffraction data to facilitate structure solution", J. Appl. Crystallogr. (2008) 41, 1115-1121
L.B. McCusker and Ch. Baerlocher, "Using electron microscopy to complement X-ray powder diffraction data to solve complex crystal structures", Chem. Commun. (2009), 1439-1451
2. PhD student position in high-entropy alloys and the coloring problem
The focus of this project is on the study of
High-entropy (HE) alloys and the coloring problem
The growing interest in crystalline Al-based HE alloys, some of them with interesting physical properties, motivates us to study their short-range ordering. HE alloys are approximately equiatomic single-phase solid solutions of several different transition metal elements and, e.g., aluminum, which crystallize in rather simple structures. The short-range order (coloring problem) in these multinary alloys, which largely determines their physical properties, will be studied by single-crystal X-ray diffraction and/or neutron scattering as a function of temperature. Our study will provide a sound basis for understanding structural correlations in multinary alloys with more than three constituting elements and their influence on physical properties.
The project involves experimental work such as preparation of intermetallic samples, the study by X-ray and neutron diffraction methods in house and at large-scale facilities (ESRF, SLS, SINQ, ILL) as well as computational modeling. The project is financially supported by the Swiss National Science Foundation.
Interested candidates with a diploma (MSc) in physics, chemistry or materials science should send an application by E-mail to:
Prof. W. Steurer
Laboratory of Crystallography
ETH Zurich
CH-8093 Zurich
Switzerland
E-mail: steurer@mat.ethz.ch
如有兴趣,可直接联系上述课题组负责人。
课题组网页:http://www.crystal.mat.ethz.ch/
学校网页:http://www.ethz.ch/index_EN
学校介绍网页:
http://baike.baidu.com/view/761222.htm
http://www.timeshighereducation. ... 0-2011/top-200.html
补充说明:
1、在ETH Zurich念博士,都有薪水,只要不过得奢侈,养活一家人没有问题;
2、苏黎世是国际化城市,英语交流没有问题;
3、瑞士生活质量高,不怎么排外,社会安定,福利不错;科研经费超多。
如还有疑问,可站内联系我,或跟贴询问,非诚勿扰。
[ Last edited by patriot_csu on 2010-9-28 at 14:14 ] |