비의류제품

crystal reduction in ta-23 glass-to-metal seals

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 527
ta-23 glass is used in the fabrication of headers for lithium ambient-temperature batteries. the glass was observed to crystallize during processing at the sealing temperature originally specified thermal expansion characteristics of the crystal phase suggested potential problems from residual stresses in the glass seal. two methods are presented to reduce or eliminate the crystallization: improvement of the glass preform surface finish and lower temperature sealing. both methods were successful in reducing crystallization in the glass during sealing. sealed headers were characterized for seal integrity by acoustic emission pressure testing and pin-pull testing seals without the crystals were found to be stronger than those with the crystals present. details of the process development and mechanical testing are presented. (era citation 12:030682)
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