http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
안병건(B.G. An),안석환(S.H. Ahn),박인덕(I.D. Park),남기우(K.W. Nam) 한국동력기계공학회 2004 동력시스템공학회지 Vol.8 No.4
For many years researchers have been attempting to establish the relations among the preparation history, structure and properties of ceramics. In this study, the strength property of A₂O₃ ceramics with components and giudes of the textile machinery was investigated. The optimized conditions of pressureless sintering were investigated in order to obtain the maximum strength of Al₂O₃ ceramics for using at the textile machinery. As the sintering conditions, 1,400 - 1,700 ℃ of temperatures and 30 ~ 150 minutes of times were applied. Three-point bending test was conducted on the sintered materials to obtain the strength property. From test results, the optimum sintering temperature has 1,600 ℃. And the optimum sintering time in 1,600 ℃ has about 100 minutes.
안병건(B. G. An),김미경(M. K. Kim),안석환(S. H. Ahn),김진욱(J. W. Kim),박인덕(I. D. Park),남기우(K. W. Nam) 한국동력기계공학회 2006 동력시스템공학회지 Vol.10 No.1
Alumina ceramic for textile machinery was sintered and subjected to three-point bending. A semicircular surface crack was made on each sample. Crack-healing behavior was systematically studied, as a function of crack-healing temperature and crack size. The bending strength and fracture toughness of the crack-healed sample from 1200 ℃ to 1400 ℃ were investigated. A statistical approach based on Weibull distribution was applied to the test data to evaluate the dispersion in the fracture toughness. Alumina ceramic for textile machinery have the ability to heal after cracking, from over 1300 ℃. The material can completely heal a 65 μm diameter semielliptical crack. The fracture toughness could be explained by 2-parameter Weibull distribution.