한국세라믹학회지 (Journal of the Korean Ceramic Society)

  • 제26권5호
  • /
  • Pages.661-669
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  • 1989
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  • 1229-7801(pISSN)
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  • 2234-0491(eISSN)
한국세라믹학회 (The Korean Ceramic Society)
권호 표지

Czochralski법으로 성장시킨 LiNbO3 단결정의 결함구조 : Dislocation Etch Pits Morphology

Defect Structures in LiNbO3 Single Crystals Grown by Czochralski Method : Dislocation Etch Pits Morphology

  • 장동석 (한양대학교 무기재료공학과) ;
  • 오근호 (한양대학교 무기재료공학과)
  • 발행 : 1989.05.01
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초록

The defect structure in LiNbO3 single crystals grown by Czochralski method from the congruently melting composition were investigated. Chemical etching patterns were studied in x-plane, z-plane, and major cleavage plane, respectively, dislocation density was higher at the periphery of crystals than at the center because the thermal stress due to radial temperature gradient had a main effect on it, as compared with dislocations formed from the solid-liquid interface. Many dislocation lineages were arranged along several directions.

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참고문헌

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