氢气气氛下两步法无压烧结制备Al2O3半透明陶瓷
Translucent Alumina Ceranmic Prepared by Two-Step Pressureless Sintering in a Hydrogen Gas Atmosphere
摘 要
在氢气气氛下, 尝试采用两步法无压烧结技术制备了致密且晶粒尺寸较小的Al2O3半透明陶瓷。结果表明: 第一步烧结温度T1和第二部烧结温度T2的范围分别为1 650~1 750 ℃和1 600~1 650 ℃; 在T1, T2分别为1 750, 1 650 ℃烧结试样的力学性能较一步烧结的有了大幅提高, 其光学性能达到了灯管的要求。
两步法无压烧结
力学性能
translucent alumina ceramic
two-step pressureless sintering
mechanical property
Abstract
The translucent alumina ceramic with high density and fine grain size was fabricated by a two-step pressureless sintering process in a hydrogenolysis gas atmosphere. The results show that the first-step sintering temperature(T1) was 1 650-1 750 ℃ and the second-step sintering temperature(T2) was 1 600-1 650 ℃. The mechanical properties of the sample prepared by two-step pressureless sintering (T1=1 750 ℃, T2=1 650 ℃) were far more improvement than that of the sample prepared by one-step sintering, and its opitical properties met the general requirements of the lamp.
中图分类号 TB303 TQ174.75
所属栏目 新材料 新工艺
基金项目
收稿日期 2011/12/15
修改稿日期 2012/8/26
网络出版日期
作者单位点击查看
备注朱渊(1981-), 男, 山西太原人, 硕士研究生。
引用该论文: ZHU Yuan,ZHANG Xiao-juan,LIU Gui-wu,QIAO Guan-jun. Translucent Alumina Ceranmic Prepared by Two-Step Pressureless Sintering in a Hydrogen Gas Atmosphere[J]. Materials for mechancial engineering, 2013, 37(1): 68～70
朱渊,张晓娟,刘桂武,乔冠军. 氢气气氛下两步法无压烧结制备Al2O3半透明陶瓷[J]. 机械工程材料, 2013, 37(1): 68～70
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参考文献
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【2】SKROVANEK S D, BRADT R C. Microhardness of a fine-grain-size Al2O3[J]. J Am Ceram Soc, 1979, 62(3/4): 215-216.
【3】RICE R W, WU C C, BORCHELT F. Hardness-grain-size relations in ceramics[J]. J Am Ceram Soc, 1994, 77(10): 2539-2553.
【4】KRELL A, BLANK P. Grain size dependence of hardness in dense submicrometer alumina[J]. J Am Ceram Soc, 1995, 78(4): 1118-1120.
【5】CHANTIKUL P, BENNISON S J, LAWN B R. Role of grain size in the strength and R-curve properties of alumina[J]. J Am Ceram Soc, 1990, 73(8): 2419-2427.
【6】SEIDEL J, CLAUSSEN N. Reliability of alumina ceramics: effect of grain size[J]. J Eur Ceram Soc, 1995, 15: 395-404.
【7】LI Jiang, PAN Yu-bai, HUANG Li-ping, et al. Hot pressing of bimodal alumina powders with magnesium aluminosilicate (MAS) addition[J]. Ceram Int, 2009, 35: 1377-1383.
【8】APETZ R, VAN BRUGGEN M. Transparent alumina: a light-scattering model[J]. J Am Ceram Soc, 2003, 86(3): 480-486.
【9】SHEN Zhi-jian, JOHNSSON M, ZHAO Zhe, et al. Spark plasma sintering of alumina[J]. J Am Ceram Soc, 2002, 85(8): 1921-1927.
【10】GARY L, MESSING , ADAM J, et al. Toward pore-free ceramics[J]. Science, 2008, 322: 383-384.
【11】CHEN I W, WANG X H.Sintering dense nanocrystalline ceramics without final-stage grain growth[J]. Nature, 2000, 404: 168-171.
【12】POLOTAI A, BREECE K, DICKEY E, et al. A novel approach to sintering nanocrystalline barium titanate ceramics[J]. J Am Ceram Soc , 2005, 88(11): 3008-3012.
【13】LEE Y I, KIM Y W, MAMORUMITOMO, et al.Fabrication of dense nanostructured silicon carbide ceramics through two-step sintering[J].J Am Ceram Soc, 2003, 86(10): 1803-1805.
【14】MAZAHERI M, ZAHEDI A M, SADRNEZHAAD S K. Two-step sintering of nanocrystalline ZnO compacts: effect of temperature on densification and grain growth[J]. J Am Ceram Soc, 2008, 91(1): 56-63.
【15】LI Jian-gong, YE Yin-ping. Densification and grain growth of Al2O3 nanoceramics during pressureless sintering[J]. J Am Ceram Soc, 2006, 89(1): 139-143.
【16】HESABIA Z R, HAGHIGHATZADEH M, MAZAHERIA M. Improvement of translucency in Al2O3 ceramics by two-step sintering technique[J]. J Eur Ceram Soc, 2009, 29: 1371-1377.
【17】BODIGOVA K, SAJGALIK P. Two-stage sintering of alumina with submicrometer grain size[J]. J Am Ceram Soc, 2007, 90(1): 330-332.
【18】WEI G C, RHODES W H.Sintering of translucent alumina in a nitrogen-hydrogen gas atmosphere[J]. J Am Ceram Soc, 2000, 83(7): 1641-1648.
【19】SONI K K.Solute segregation to grain boundaries in MgO-doped alumina[J]. Appl Phys Lett, 1995, 66(21): 2795-2797.
【20】YAO Yi-jun. Mechanical behaviors of alumina ceramics doped with rare-earth oxides[J]. Rare Metals, 2010, 29(5): 456-459.
【21】HANSEN J D, RUSIN R P, TENG M H, et al.Combined-stage sintering model[J].J Am Ceram Soc, 1992, 75(5): 1129-1135.
【22】LIN F J T, JONGHE L C D, RAHAMAN M N. Microstructure refinement of sintered alumina by a two-step sintering technique[J].J Am Ceram Soc, 1997, 80(9): 2267-2277.
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