| 粉体粒径及烧结工艺对ZrB2陶瓷致密化行为与晶粒长大的影响 |
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| 引用本文： | 王振涛,王刚,王微,刘大钊,王秒,桂凯旋.粉体粒径及烧结工艺对ZrB2陶瓷致密化行为与晶粒长大的影响[J].人工晶体学报,2019,48(8):1516-1521. |
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| 作者姓名： | 王振涛 王刚 王微 刘大钊 王秒 桂凯旋 |
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| 作者单位： | 安徽工程大学机械与汽车工程学院,芜湖,241000;安徽机电职业技术学院航空与材料学院,芜湖,241002;安徽工程大学机械与汽车工程学院,芜湖 241000;哈尔滨工业大学材料科学与工程学院,哈尔滨 150000;哈尔滨工业大学材料科学与工程学院,哈尔滨,150000 |
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| 基金项目： | 国家自然科学基金(51704001);安徽省领军骨干人才项目(Z175050020001);安徽工程大学启动基金(2017YQQ009) |
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| 摘 要： | 利用热压烧结(HP)和放电等离子烧结(SPS)制备了ZrB2陶瓷,研究了粉体粒径和烧结工艺对ZrB2陶瓷致密化行为和晶粒长大的影响。结果表明,相同工艺下以平均粒径为200nm的ZrB2粉体为原料替代平均粒径为2μm的ZrB2粉体可以明显促进粉体的致密化烧结,采用SPS替代HP工艺可以显著降低粉体的致密化温度,采用平均粒径为200nm的ZrB2粉体在1900℃进行SPS工艺烧结即可实现ZrB2陶瓷的致密化烧结。
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| 关 键 词： | ZRB2 粉体粒径 放电等离子烧结 致密化 |
Effect of Powder Particle Size and Sintering Process on Densification Behavior and Grain Growth of ZrB2 Ceramics |
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| WANG Zhen-tao,WANG Gang,WANG Wei,LIU Da-zhao,WANG Miao,GUI Kai-xuan.Effect of Powder Particle Size and Sintering Process on Densification Behavior and Grain Growth of ZrB2 Ceramics[J].Journal of Synthetic Crystals,2019,48(8):1516-1521. |
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| Authors: | WANG Zhen-tao WANG Gang WANG Wei LIU Da-zhao WANG Miao GUI Kai-xuan |
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| Affiliation: | (School of Mechanical and Automotive Engineering,Anhui Polytechnic University,Wuhu 241000,China;School of Aviation and Materials,Anhui Technical College of Mechanical and Electrical Engineering,Wuhu 241002,China;School of Material Science and Engineering,Harbin Institute of Technology,Harbin 150000,China) |
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| Abstract: | ZrB 2 ceramics were fabricated by hot press sintering (HP) and spark plasma sintering (SPS). The effects of powder size and sintering method on the densification behavior of ZrB 2 ceramics were investigated. The result indicates that under the same conditions the densification of ZrB 2 powders were significantly enhanced using nanosized powders (200 nm) instead of its microsized counterpart(2 μm). The sintering temperature aquired to densify ZrB 2 powders by SPS was lower than that of HP, and the ZrB 2 powders with an average particle size of 200 nm was densified by SPS process at 1900 ℃. |
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| Keywords: | ZrB 2 powder size spark plasma sintering densification |
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