Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
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Nondestructive Bending Strength Evaluation of Ceramics Made from Miscanthus sinensis var. purpurascens Particle Boards - Effect of Resin Impregnation Ratio -

  • Byeon, Hee-Seop (College of Agriculture & Life Science, IALS, Gyeongsang National University) ;
  • Won, Kyung-Rok (College of Agriculture and Life Science, Gyeongsang National University) ;
  • Oh, Seung-Won (Dept. of Wood Science and Technology, Chonbuk National University)
  • Received : 2014.01.08
  • Accepted : 2014.02.12
  • Published : 2014.03.25
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Abstract

Nondestructive evaluation (NDE) method by using a resonance frequency mode was carried out for ceramics made from particle boards with different phenol resin impregnation ratios (30, 40, 50, 60%) at carbonizing temperature of $800^{\circ}C$. The material for ceramics was Miscanthus sinensis var. purpurascens board. Dynamic modulus of elasticity increased with increasing impregnation ratio. There was 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 is 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 from Miscanthus sinensis var. purpurascens particle boards by different phenol resin impregnation ratios.

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