1955.12-1956.3 was engaged in single crystal x-ray research on the transformation of white tin into gray tin in the Department of Physical Chemistry of Royal Dutch Institute of Technology.
1956.7-2006. 12 is engaged in transmission electron microscope research of quasicrystals and some crystalline materials in Institute of Metals, Beijing Electron Microscope Room and Institute of Physics, Chinese Academy of Sciences. He is also a part-time professor in several universities, guiding graduate thesis work.
1984/85: The discovery of quintuple rotation and Ti-V-Ni icosahedral quasicrystal won the first prize of National Natural Science1987; 1987: Octuple rotationally symmetric quasicrystals were first discovered; 1988: firstly, stable Al-Cu-Co decagonal symmetric quasicrystals and one-dimensional quasicrystals were found; 1997-2000: Obtaining the experimental evidence of quasicrystal covering theory.
Guo Kexin, a famous physical metallurgist and crystallographer, party member, producer of China, academician of China Academy of Sciences, foreign engineering academician of Royal Swedish Academy, and researcher of Institute of Physics, Chinese Academy of Sciences.
At the beginning of the founding of New China, although Mr. Guo Kexin was in a foreign country, he always cared about the socialist construction of New China. 1956, in response to the party's call of "marching into science", he resolutely returned to China to participate in socialist construction and worked in the Institute of Metals, Chinese Academy of Sciences, and served as a researcher and deputy director. 1April, 1980 served as the vice president of Shenyang Branch of China Academy of Sciences. 1980 September Chairman of Liaoning Science and Technology Association. 1980 was elected as an academician of China Academy of Sciences. 1982 president of Shenyang branch of China academy of sciences. 1985- 1993 was appointed as the director of Beijing Electron Microscope Open Laboratory of China Academy of Sciences. 1993-2006 Researcher, Institute of Physics, Chinese Academy of Sciences.