CAJ | 학술논문

应用数学方法分析了Al2O3涂层工程陶瓷抗弯强度的实验结果。叙述了用有限个试样的实验结果估计工程陶瓷总体抗弯强度的原理和方法，对得出的分布特征参数的物理意义进行了探讨，发现置信边值强度μ左可以反映材料总体抗弯强度的大小，而均方差置信区间右边值σ右则可以表征材料性能的分散程度，使用这两个参数可以更可靠地评价工程陶瓷的强度水平，可作为材料强度性能的评价指标。并用该强度指标分析了溶胶一凝胶Al2O3涂层对工程陶瓷表面改性的效果。
응용수학방법분석료Al2O3도층공정도자항만강도적실험결과。서술료용유한개시양적실험결과고계공정도자총체항만강도적원리화방법，대득출적분포특정삼수적물리의의진행료탐토，발현치신변치강도μ좌가이반영재료총체항만강도적대소，이균방차치신구간우변치σ우칙가이표정재료성능적분산정도，사용저량개삼수가이경가고지평개공정도자적강도수평，가작위재료강도성능적평개지표。병용해강도지표분석료용효일응효Al2O3도층대공정도자표면개성적효과。
Experimental results for bending strength of Al2 O3 - coated engineering ceramics were analyzed using mathematical method. The principle and method for estimating general bending strength of engineering ceramics using results obtained from a limited quantity of specimens were described and the physical significance of the distribution characteristic parmeters was discussed. It has been found that the left boundary value μ左 of confidence strength intervals presents the average value of overall bending strength and the right boundary value σ右 of mean square deviation characterizes the dispersal level of material strength. These two parameters illustrate the strength lever of engineering ceramics reliably and can be used as the index for evaluating the strength properties of material. The results after modifying the engineering ceramics were also analyzed in this paper.