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Growth of lead-based functional crystals by the vertical bridgman method
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  • Growth of lead-based functional crystals by the vertical bridgman method
  • Growth of lead-based functional crystals by the vertical bridgman method
저자명
Xu. Jiayue
간행물명
한국결정성장학회지
권/호정보
2006년|16권 1호|pp.1-7 (7 pages)
발행정보
한국결정성장학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

Some lead-based crystals show excellent ferroelectric, piezoelectric or scintillation properties and have attracted much attention in recent years. However, the erosion of the high temperature solution on platinum crucible and the evaporation of PbO component are the main problems often encountered during the crystal growth. In this paper, we reported recent progress on the Bridgman growth of lead-based functional crystals, such as novel relaxor ferroelectric crystals (PZNT and PMNT), scintillation crystals $(PbWO_4,;PbF_2;and;PbClF)$ and piezoelectric crystals $(Pb_5Ge_3O_{11};and;Pb_2KNb_5O_{15}),$ in Shanghai Institute of Ceramics, Chinese Academy of Sciences. The vertical Bridgman method has been modified to grow PZNT crystals from high temperature solution and as-grown crystals have been characterized. Large size lead-based scintillators, $PbWO_4;and;PbF_2$ crystals, have been mass-produced by the vertical Bridgman method in the multi-crucible fumace. These crystals have been supplied to CERN and other laboratories for high-energy physics experiments. The Bridgman growth of piezoelectric crystals $Pb_5Ge_3O_{11};and;Pb_2KNb_5O_{15}$ are discussed also.