利用数理统计方法研究碳／碳复合材料抗氧化性能影响因素  

Statistics Aided Study of Effect of Additive on the Burning Rate of Carbon/Carbon Composites

作　　者：朱小旗[1] 杨峥[1] 康沫狂[1] 

机构地区：[1]西北工业大学

出　　处：《西北工业大学学报》1994年第3期444-448,共5页Journal of Northwestern Polytechnical University

摘　　要：本文引入正交设计，方差分析，正交回归等数理统计方法，首次得出４种添加剂ＺｒＯ２，Ｂ４Ｃ，ＳｉＣ，ＳｉＯ２含量与氧化烧蚀率的数学关系式，得出了添加剂对其抗氧化处的影响规律，并首次分析了４种添加剂对氧化烧蚀率的影响显著性程度．One of the pressing problems encountered in carbon/carbon composites (c/ c) development in China is the effect of additives on oxidation resistance of such composites. Mckce's two papers in 1987 [1] and 1988 [4] respectively studied such problem but not quite systematically. This may be partly due to the rather long period of time required for preparation of C / C specimens. In the authors experimental study, four different additive components, ZrO2, B4C, SiC, SiO2(Mckee used B4C, SiC and ZrB4 only) arc sclected and three different weight percentages of each additive component are selected. This requires, if we follow Mckee's example, 81 specimens altogether and thus requires a great dcal of time and expense. Statistical methods arc introduced to reduce the number of specimens to only 9 (compared with random points used by Mckec). Finally, the authors give the mathematical equations (1￣3), which are statistically obtained, relating weight percentages of the four additives to the burning rate (main index of oxidation resistance). Components ZrO2, B4C and SiO2 but not SiC affect the buring rate significantly. The experimental results show that cqs. (1- 3) arc highly effective and reliable.

关 键 词：碳-碳 复合材料 抗氧化 数理统计 

分 类 号：TB332[一般工业技术—材料科学与工程]