Journal of the Korean Wood Science and Technology

  • 제42권6호
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  • Pages.723-731
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  • 2014
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  • 1017-0715(pISSN)
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  • 2233-7180(eISSN)
한국목재공학회 (The Korean Society of Wood Science & Technology)
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탄화온도별로 제조된 거대억새 세라믹의 비파괴 휨강도 평가

Nondestructive Bending Strength Evaluation of Miscanthus sinensis var. purpurascens Ceramics Made from Different Carbonizing Temperatures

  • 원경록 (경상대학교 농업생명과학대학 농업생명과학연구원) ;
  • 오승원 (전북대학교 목재응용과학과) ;
  • 변희섭 (경상대학교 농업생명과학대학 농업생명과학연구원)
  • Won, Kyung-Rok (College of Agriculture & Life Science, IALS, Gyeongsang National University) ;
  • Oh, Seung-Won (Department of Wood Science and Technology, Chonbuk National University) ;
  • Byeon, Hee-Seop (College of Agriculture & Life Science, IALS, Gyeongsang National University)
  • 투고 : 2014.04.07
  • 심사 : 2014.06.02
  • 발행 : 2014.11.25
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초록

공진주파수 모드를 이용하는 비파괴 평가기술법을 거대억새 파티클 보드를 페놀수지로 함침한 후 탄화온도별(600, 800, 1000, $1200^{\circ}C$)로 제조한 세라믹에 적용하였다. 동적 탄성계수와 정적 휨 탄성계수는 탄화온도가 증가할수록 증가하였다. 휨 강도에 대한 동적 탄성계수 및 정적 휨 탄성계수는 밀접한 상관관계를 나타내었다. 그러나 휨 강도에 대한 상관관계에서 정적 탄성계수 보다 동적 탄성계수가 더 밀접한 상관관계를 나타내었다. 따라서 공진 주파수 모드를 사용하는 동적 탄성계수측정법으로 소성온도에 따라 제조된 거대억대 파티클보드의 휨 강도를 예측하는 비파괴 평가 방법으로 유용할 것으로 판단된다.

Nondestructive evaluation (NDE) technique method using a resonance frequency mode was carried out for ceramics made by different carbonizing temperatures (600, 800, 1000, $1200^{\circ}C$) after impregnating the phenol resin with Miscanthus sinensis var. purpurascen particle boards. Dynamic modulus of elasticity increased with increasing carbonizing temperature. There were a close relationship of dynamic modulus of elasticity and static bending modulus of elasticity to modulus of rupture (MOR). However, the result indicated that correlation coefficient was higher in dynamic modulus of elasticity to MOR than that in static modulus of elasticity to MOR. Therefore, the dynamic modulus of elasticity using resonance frequency by free vibration mode is more useful as a nondestructive evaluation method for predicting the MOR of ceramics made by different carbonizing temperature for Miscanthus sinensis var. purpurascens particle boards.

키워드

참고문헌

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