| Yin Zhiwen
 He is a materials scientist and Professor
of Shanghai Institute of Ceramics, Chinese Academy of
Sciences, born on May 1919. He graduated from the Department
of Mining and Metallurgy, Yunnan University in 1942 and
received his M.S. degrees from the Department of Metallurgy,
University of Missouri, Rolla and the Department of Ceramic
Engineering, University of Illinois, U.S.A. in 1948 and 1950
respectively. He was elected to be a member of the Chinese
Academy of Sciences in 1993.
Prof. Yin has devoted himself for a long time to the
research on functional ceramics and scintillation crystals. He
is one of the pioneers in the research and development of the
lead zirconium titinate (PZT) piezoelectric ceramics in China
and made important contributions to the research and
applications of China's functional ceramic materials. He did
research work on the phase transition and microstructure
changes in the relaxor ferroelectrics PLZT transparent
ceramics and primarily observed the nanometer size polar
micro-regions in it. Since the early 1980's, he has been
mainly engaged in the scintillation crystals research. After
recognizing the radiation damage in the bismuth germanate
(BGO) crystal, being the result of forming radiation-induced
color center due to oxygen vacancies in the crystal, he
successfully developed a new type of Eu-doped BGO
scintillation crystal with high radiation hardness. A
scintillation crystal research group led by him provided more
than 10,000 pieces of large size BGO crystal for the
construction of the electromagnetic calorimeter in the
European Nuclear Research Center (CERN). In recent years, he
has been working on the halide scintillation crystals. such as
BaF2 , Caf3, PbF2, Csl(TI),
etc., and fruitful progress has been attained. |
