正在加载图片...
Vol.21 No.6 陈德平等:气氛对CaZrO-ZrB,材料烧结的影响 ·547 3结论 参考文献 1 Stubican S V,Ray S P.Phase Equilibra and Ordering in the (I)CaZrO/ZrB:复合材料不能在氧化气氛和 System ZrO:-CaO.J Am Ceram Soc,1997,60(11-12):534 还原气氛下烧结.在氧化气氛下,ZB,将被氧化 2横山洋一,淵本博之,釣久司,毛利文彦.Z0Ca0比) 生成ZrO2:在N+H,条件下CaZrO,-ZrB,体系会 異電融Zr0Ca0夕月之力一.1992,44(1):21 被氮化,生成ZrN. 3 Binns D B.The Use of Special Ceramics in Handling Mol- (2)CaZr0,/ZrB,复合材料可以在Ar气保护 ten Iron and Steel.Trans J Brit Ceram Soc,1978,77(1):1 下烧成 4梁英教,车荫昌.无机物热力学数据手册,沈阳:东北大 学出版社,1980 Effect of Atmosphere on CaZrO,/ZrB2 Composite Sintering Chen Deping",Zhao Hailei,Zhong Xiangchong.Wang Jian2 1)Resources Engineering School,UST Beijing.Beijing 100083,China 2)Material Science and Engincering School ABSTRACT The effect of atmosphere on the sintering of CaZrO,/ZrB:composite has been studied in three kind of atmosphere.Thermodynamic analysis has indicated that at high temperature both CaZrO,and ZrB: thermodgnamic relation would be stable only in Ar atmosphere.The experimental results have verified the reliability of the above thermdgnamic analysis. KEY WORDS calcium zirconate;zirconium diboride;sintering atmosphere 附附陷路阳附附路4降路附阳哈贴必路:附4华:附阳阳贴附附对华附附贴附附 上接第542页 Study on Friction Boundary Condition in Metal Hot Deformation Yan Jun,Lu Shouli Materials Science and Engineering School,UST Beijing,Beijing 100083,China ABSTRACT The boundary condition of metal deformation at high temperature using experimental and FEM simulation method,and the effect of friction factor on deformation and stress of ring are studied during for- ming process.Through ring compress experiment and FEM simulation analysis,the regularity of friction can be determined and the range of friction factor in metal hot deformation can also be obtained.Maximum coul- omb friction factor is around 0.4. KEY WORDS hot deformation;boundary condition;friction一 陈德平等 气氛对 一 材料烧 结 的影 响 · 结论 亿 复合材料不 能在氧化 气 氛 和 还原气氛下烧 结 在氧化气氛下 , 将 被氧化 生 成 在 条件下 一 体 系 会 被氮化 , 生成 亿 复合材料 可 以在 气 保护 下 烧成 参 考 文 献 , 一 , , 一 横 山洋一 , 渊本博之 , 钓久司 , 毛利文彦 比 。 昊 仓 石 雹融 · 夕 口 夕 力 一 , , , 梁英教 , 车荫昌 无机物热力学数据手册 沈阳 东北大 学 出版社 , ,, ,几 叮 群 犷七 肠馆 ” , , , 即 。 冲 上接第 页 , , , , , 卿
<<向上翻页
©2008-现在 cucdc.com 高等教育资讯网 版权所有